BGP Routing: 2011-08-07

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, August 13, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 14 Aug, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 371325
Prefixes after maximum aggregation: 167465
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182305
Total ASes present in the Internet Routing Table: 38493
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31969
Origin ASes announcing only one prefix: 15364
Transit ASes present in the Internet Routing Table: 5199
Transit-only ASes present in the Internet Routing Table: 151
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4210
Unregistered ASNs in the Routing Table: 624
Number of 32-bit ASNs allocated by the RIRs: 1645
Number of 32-bit ASNs visible in the Routing Table: 1325
Prefixes from 32-bit ASNs in the Routing Table: 3072
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2494080839
Equivalent to 148 /8s, 168 /16s and 167 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153961

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 90134
Total APNIC prefixes after maximum aggregation: 29338
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 86739
Unique aggregates announced from the APNIC address blocks: 37709
APNIC Region origin ASes present in the Internet Routing Table: 4513
APNIC Prefixes per ASN: 19.22
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 70
Number of APNIC addresses announced to Internet: 624197632
Equivalent to 37 /8s, 52 /16s and 128 /24s
Percentage of available APNIC address space announced: 79.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 145562
Total ARIN prefixes after maximum aggregation: 75316
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117097
Unique aggregates announced from the ARIN address blocks: 46996
ARIN Region origin ASes present in the Internet Routing Table: 14586
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5595
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803407640
Equivalent to 47 /8s, 227 /16s and 7 /24s
Percentage of available ARIN address space announced: 63.8

ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 89530
Total RIPE prefixes after maximum aggregation: 49800
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81991
Unique aggregates announced from the RIPE address blocks: 53323
RIPE Region origin ASes present in the Internet Routing Table: 15890
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7909
RIPE Region transit ASes present in the Internet Routing Table: 2513
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 954
Number of RIPE addresses announced to Internet: 487649484
Equivalent to 29 /8s, 16 /16s and 240 /24s
Percentage of available RIPE address space announced: 78.6

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 34410
Total LACNIC prefixes after maximum aggregation: 7598
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 33596
Unique aggregates announced from the LACNIC address blocks: 17273
LACNIC Region origin ASes present in the Internet Routing Table: 1498
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 285
Number of LACNIC addresses announced to Internet: 87498304
Equivalent to 5 /8s, 55 /16s and 30 /24s
Percentage of available LACNIC address space announced: 57.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8391
Total AfriNIC prefixes after maximum aggregation: 2030
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6532
Unique aggregates announced from the AfriNIC address blocks: 2031
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.58
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26925312
Equivalent to 1 /8s, 154 /16s and 217 /24s
Percentage of available AfriNIC address space announced: 40.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1929 11038 644 Korea Telecom (KIX)
17974 1892 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1566 301 83 TPG Internet Pty Ltd
4755 1534 631 169 Videsh Sanchar Nigam Ltd. Aut
7552 1408 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd.
9829 1128 963 42 BSNL National Internet Backbo
9583 1072 78 490 Sify Limited
4808 1036 2085 295 CNCGROUP IP network: China169
17488 1008 187 128 Hathway IP Over Cable Interne

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3587 3817 229 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1820 681 124 AppliedTheory Corporation
4323 1617 1102 402 Time Warner Telecom
7029 1610 1029 208 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
22773 1409 2903 93 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1370 7085 900 AT&T WorldNet Services
2386 1251 519 901 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 1035 797 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 538 107 185 Tellcom Iletisim Hizmetleri
3292 522 2080 406 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
3320 424 8151 370 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1574 290 165 TVCABLE BOGOTA
8151 1437 2737 360 Uninet S.A. de C.V.
28573 1254 996 67 Types of queries are: POCs, o
7303 1066 578 174 Telecom Argentina Stet-France
6503 750 450 77 AVANTEL, S.A.
14420 705 56 85 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 533 232 97 COLOMBIA TELECOMUNICACIONES S
27947 516 54 48 Telconet S.A

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
24863 805 147 42 LINKdotNET AS number
8452 681 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 194 28 65 YEBO-AS
24835 179 78 10 RAYA Telecom - Egypt

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3587 3817 229 bellsouth.net, inc.
23456 3072 732 1648 >>UNKNOWN<<
4766 1929 11038 644 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1892 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1820 681 124 AppliedTheory Corporation
4323 1617 1102 402 Time Warner Telecom
7029 1610 1029 208 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1574 290 165 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
17974 1892 1861 PT TELEKOMUNIKASI INDONESIA
1785 1820 1696 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1566 1483 TPG Internet Pty Ltd
23456 3072 1424 >>UNKNOWN<<
10620 1574 1409 TVCABLE BOGOTA
7029 1610 1402 Windstream Communications Inc
7552 1408 1401 Vietel Corporation
4755 1534 1365 Videsh Sanchar Nigam Ltd. Aut
22773 1409 1316 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.133.200.0/24 57181 >>UNKNOWN<<
31.133.201.0/24 57181 >>UNKNOWN<<
31.133.202.0/24 57181 >>UNKNOWN<<
31.133.203.0/24 57181 >>UNKNOWN<<

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:233
/13:466 /14:806 /15:1442 /16:12170 /17:6151 /18:10203
/19:20060 /20:27655 /21:26999 /22:35748 /23:34687 /24:192834
/25:83 /26:86 /27:111 /28:275 /29:71 /30:528
/31:91 /32:486

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2217 3587 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1509 3072 >>UNKNOWN<<
10620 1469 1574 TVCABLE BOGOTA
7029 1295 1610 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1159 Citizens Utilities
1785 1052 1820 AppliedTheory Corporation
22773 905 1409 Cox Communications, Inc.
30036 898 920 Mediacom Communications Corp

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:354 2:46 4:19 5:1 6:3 8:341
12:1964 13:1 14:510 15:15 16:3 17:5
20:10 23:19 24:1691 27:873 31:522 32:149
33:4 34:2 36:4 38:735 40:107 41:2525
42:43 44:3 46:1073 47:3 49:219 50:395
52:13 54:2 55:5 56:2 57:45 58:871
59:499 60:379 61:1176 62:1081 63:1952 64:4054
65:2302 66:3961 67:1946 68:1285 69:3198 70:825
71:373 72:1875 73:1 74:2482 75:341 76:350
77:865 78:710 79:484 80:1134 81:830 82:502
83:471 84:696 85:1082 86:533 87:843 88:341
89:1555 90:224 91:4051 92:527 93:1128 94:1347
95:872 96:422 97:266 98:936 99:37 101:79
103:189 106:69 107:31 108:80 109:1021 110:633
111:734 112:309 113:409 114:564 115:694 116:1008
117:682 118:869 119:1182 120:315 121:706 122:1613
123:985 124:1374 125:1341 128:247 129:177 130:172
131:580 132:114 133:21 134:214 135:52 136:216
137:139 138:296 139:129 140:488 141:267 142:385
143:420 144:482 145:58 146:461 147:225 148:692
149:252 150:160 151:190 152:440 153:182 154:5
155:399 156:199 157:332 158:137 159:456 160:318
161:206 162:310 163:164 164:515 165:394 166:536
167:437 168:747 169:153 170:839 171:81 172:1
173:1663 174:626 175:394 176:148 177:209 178:1007
180:917 181:26 182:508 183:241 184:365 185:1
186:1364 187:744 188:907 189:929 190:5082 192:5942
193:4990 194:3551 195:3133 196:1217 197:123 198:3596
199:4043 200:5507 201:1480 202:8432 203:8491 204:4272
205:2334 206:2740 207:2804 208:4137 209:3503 210:2697
211:1464 212:2137 213:1775 214:765 215:70 216:4937
217:1623 218:557 219:355 220:1231 221:514 222:360
223:235

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 14 Aug, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 361704
Prefixes after maximum aggregation: 164449
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182199
Total ASes present in the Internet Routing Table: 37004
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 31929
Origin ASes announcing only one prefix: 15377
Transit ASes present in the Internet Routing Table: 5075
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2461
Unregistered ASNs in the Routing Table: 691
Number of 32-bit ASNs allocated by the RIRs: 1645
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3063
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2509939968
Equivalent to 149 /8s, 154 /16s and 165 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149457

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 87505
Total APNIC prefixes after maximum aggregation: 29150
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 84936
Unique aggregates announced from the APNIC address blocks: 37837
APNIC Region origin ASes present in the Internet Routing Table: 4482
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 623180800
Equivalent to 37 /8s, 36 /16s and 252 /24s
Percentage of available APNIC address space announced: 79.0

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 140931
Total ARIN prefixes after maximum aggregation: 72765
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113071
Unique aggregates announced from the ARIN address blocks: 47017
ARIN Region origin ASes present in the Internet Routing Table: 14500
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5591
ARIN Region transit ASes present in the Internet Routing Table: 1465
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803334144
Equivalent to 47 /8s, 225 /16s and 232 /24s
Percentage of available ARIN address space announced: 63.8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 87786
Total RIPE prefixes after maximum aggregation: 49614
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81035
Unique aggregates announced from the RIPE address blocks: 53280
RIPE Region origin ASes present in the Internet Routing Table: 15874
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7922
RIPE Region transit ASes present in the Internet Routing Table: 2496
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 487050752
Equivalent to 29 /8s, 7 /16s and 206 /24s
Percentage of available RIPE address space announced: 78.5

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 33334
Total LACNIC prefixes after maximum aggregation: 7517
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32749
Unique aggregates announced from the LACNIC address blocks: 17247
LACNIC Region origin ASes present in the Internet Routing Table: 1488
LACNIC Prefixes per ASN: 22.01
LACNIC Region origin ASes announcing only one prefix: 454
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 87435008
Equivalent to 5 /8s, 54 /16s and 39 /24s
Percentage of available LACNIC address space announced: 57.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8383
Total AfriNIC prefixes after maximum aggregation: 2029
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6521
Unique aggregates announced from the AfriNIC address blocks: 2025
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26923776
Equivalent to 1 /8s, 154 /16s and 211 /24s
Percentage of available AfriNIC address space announced: 40.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1929 11038 644 Korea Telecom (KIX)
17974 1595 516 31 PT Telekomunikasi Indonesia
7545 1567 301 84 TPG Internet Pty Ltd
4755 1526 374 167 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 National Internet Backbone
9583 1072 78 490 Sify Limited
7552 997 1062 11 Vietel Corporation
17488 991 187 128 Hathway IP Over Cable Interne
4808 952 2005 273 CNCGROUP IP network China169

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 229 BellSouth.net Inc.
18566 1911 364 238 Covad Communications Co.
1785 1820 681 124 PaeTec Communications, Inc.
4323 1615 1102 402 tw telecom holdings, inc.
7029 1609 1029 208 Windstream Communications Inc
20115 1590 1538 623 Charter Communications
22773 1408 2903 93 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1370 7085 898 AT&T Services, Inc.
2386 1250 519 899 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
9116 540 326 31 Goldenlines main autonomous s
34984 538 107 185 BILISIM TELEKOM
6830 510 1788 316 UPC Broadband
20940 471 134 364 Akamai Technologies European
3292 470 2080 405 TDC Data Networks
12479 456 593 7 France Telecom Espana SA
8866 454 133 26 Bulgarian Telecommunication C
3320 424 8151 370 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.
8551 405 355 38 Bezeq International

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1574 290 165 Types of queries are: POCs, o
8151 1261 2737 354 Uninet S.A. de C.V.
28573 1254 996 67 Types of queries are: POCs, o
7303 1044 578 162 Telecom Argentina S.A.
6503 731 450 76 Axtel, S.A.B. de C.V.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 533 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
11172 513 101 91 Alestra, S. de R.L. de C.V.

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
24863 803 147 41 LINKdotNET AS number
8452 679 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 194 28 65 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 229 BellSouth.net Inc.
23456 3063 731 1644 32-bit ASN transition
4766 1929 11038 644 Korea Telecom (KIX)
18566 1911 364 238 Covad Communications Co.
1785 1820 681 124 PaeTec Communications, Inc.
4323 1615 1102 402 tw telecom holdings, inc.
7029 1609 1029 208 Windstream Communications Inc
17974 1595 516 31 PT Telekomunikasi Indonesia
20115 1590 1538 623 Charter Communications
10620 1574 290 165 Types of queries are: POCs, o

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
1785 1820 1696 PaeTec Communications, Inc.
18566 1911 1673 Covad Communications Co.
17974 1595 1564 PT Telekomunikasi Indonesia
7545 1567 1483 TPG Internet Pty Ltd
23456 3063 1419 32-bit ASN transition
10620 1574 1409 Types of queries are: POCs, o
7029 1609 1401 Windstream Communications Inc
4755 1526 1359 TATA Communications formerly
22773 1408 1315 Cox Communications Inc.
4766 1929 1285 Korea Telecom (KIX)

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV

Complete listing at http://thyme.rand.apnic.net/london/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:12 /10:27 /11:81 /12:234
/13:465 /14:799 /15:1411 /16:12027 /17:5881 /18:9876
/19:19614 /20:26437 /21:26426 /22:35053 /23:33782 /24:189039
/25:12 /26:20 /27:23 /28:158 /29:113 /30:61
/31:0 /32:132

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2216 3586 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1504 3063 32-bit ASN transition
10620 1469 1574 Types of queries are: POCs, o
7029 1293 1609 Windstream Communications Inc
11492 1100 1146 CABLE ONE, INC.
7011 1057 1159 Frontier Communications of Am
1785 1052 1820 PaeTec Communications, Inc.
22773 904 1408 Cox Communications Inc.
30036 897 919 Mediacom Communications Corp

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:353 2:45 4:15 5:1 6:3 8:340
12:1959 13:1 14:499 15:15 16:3 17:5
20:10 23:19 24:1683 27:867 31:512 32:59
33:4 34:2 36:4 38:727 40:107 41:2517
42:43 44:3 46:1068 47:3 49:219 50:395
52:13 54:2 55:4 56:2 57:34 58:824
59:493 60:377 61:1009 62:1067 63:1923 64:3971
65:2298 66:3910 67:1914 68:1102 69:3084 70:776
71:373 72:1843 74:2428 75:328 76:341 77:863
78:708 79:482 80:1130 81:827 82:492 83:468
84:686 85:1077 86:516 87:839 88:337 89:1533
90:224 91:4046 92:526 93:1119 94:1344 95:872
96:413 97:266 98:922 99:37 101:74 103:189
106:69 107:31 108:73 109:1013 110:620 111:731
112:302 113:403 114:561 115:675 116:970 117:658
118:825 119:1168 120:314 121:662 122:1604 123:978
124:1338 125:1278 128:208 129:167 130:165 131:575
132:108 133:21 134:205 135:52 136:214 137:136
138:296 139:114 140:466 141:267 142:366 143:417
144:479 145:58 146:455 147:214 148:624 149:251
150:153 151:190 152:438 153:182 154:4 155:399
156:196 157:300 158:137 159:389 160:317 161:196
162:307 163:154 164:515 165:362 166:534 167:435
168:742 169:151 170:840 171:81 172:1 173:1644
174:624 175:381 176:148 177:209 178:1004 180:903
181:26 182:491 183:241 184:363 185:1 186:1361
187:721 188:907 189:928 190:5073 192:5872 193:4976
194:3504 195:3055 196:1211 197:123 198:3533 199:3985
200:5433 201:1469 202:8207 203:8391 204:4190 205:2295
206:2589 207:2724 208:4002 209:3389 210:2604 211:1450
212:2104 213:1763 214:747 215:69 216:4844 217:1617
218:544 219:349 220:1194 221:497 222:310 223:233

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 14 Aug, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 367491
Prefixes after maximum aggregation: 166490
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182198
Total ASes present in the Internet Routing Table: 38472
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31935
Origin ASes announcing only one prefix: 15347
Transit ASes present in the Internet Routing Table: 5215
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1079
Unregistered ASNs in the Routing Table: 606
Number of 32-bit ASNs allocated by the RIRs: 1645
Number of 32-bit ASNs visible in the Routing Table: 1322
Prefixes from 32-bit ASNs in the Routing Table: 3059
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2492987392
Equivalent to 148 /8s, 151 /16s and 248 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153268

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 92269
Total APNIC prefixes after maximum aggregation: 30523
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 88772
Unique aggregates announced from the APNIC address blocks: 37759
APNIC Region origin ASes present in the Internet Routing Table: 4531
APNIC Prefixes per ASN: 19.59
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 70
Number of APNIC addresses announced to Internet: 623785504
Equivalent to 37 /8s, 46 /16s and 54 /24s
Percentage of available APNIC address space announced: 79.1

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 142200
Total ARIN prefixes after maximum aggregation: 73295
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114073
Unique aggregates announced from the ARIN address blocks: 47018
ARIN Region origin ASes present in the Internet Routing Table: 14566
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5594
ARIN Region transit ASes present in the Internet Routing Table: 1541
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803384064
Equivalent to 47 /8s, 226 /16s and 171 /24s
Percentage of available ARIN address space announced: 63.8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 87392
Total RIPE prefixes after maximum aggregation: 49658
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80635
Unique aggregates announced from the RIPE address blocks: 53283
RIPE Region origin ASes present in the Internet Routing Table: 15878
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7911
RIPE Region transit ASes present in the Internet Routing Table: 2507
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 949
Number of RIPE addresses announced to Internet: 487076352
Equivalent to 29 /8s, 8 /16s and 50 /24s
Percentage of available RIPE address space announced: 78.5

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 34027
Total LACNIC prefixes after maximum aggregation: 7618
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33220
Unique aggregates announced from the LACNIC address blocks: 17258
LACNIC Region origin ASes present in the Internet Routing Table: 1499
LACNIC Prefixes per ASN: 22.16
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 287
Number of LACNIC addresses announced to Internet: 87495744
Equivalent to 5 /8s, 55 /16s and 20 /24s
Percentage of available LACNIC address space announced: 57.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8374
Total AfriNIC prefixes after maximum aggregation: 2028
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6515
Unique aggregates announced from the AfriNIC address blocks: 2032
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26906880
Equivalent to 1 /8s, 154 /16s and 145 /24s
Percentage of available AfriNIC address space announced: 40.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2519 11046 955 Korea Telecom (KIX)
17974 1892 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1569 301 85 TPG Internet Pty Ltd
4755 1535 635 170 TATA Communications formerly
7552 1408 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 BSNL National Internet Backbo
9583 1072 78 490 Sify Limited
4808 1065 2098 306 CNCGROUP IP network: China169
17488 993 187 128 Hathway IP Over Cable Interne

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3588 3817 228 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1817 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1591 1538 623 Charter Communications
7029 1574 991 228 Windstream Communications Inc
22773 1409 2903 93 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1362 7052 891 AT&T WorldNet Services
2386 1250 519 900 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
34984 538 107 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
3320 425 8151 371 Deutsche Telekom AG
29049 417 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 397 1855 346 TeliaNet Sweden

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1574 290 165 TVCABLE BOGOTA
8151 1424 2755 352 UniNet S.A. de C.V.
28573 1265 996 67 NET Servicos de Comunicao S.A
7303 1066 578 174 Telecom Argentina Stet-France
6503 742 450 76 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 531 232 96 Empresa Nacional de Telecomun
7738 515 986 31 Telecomunicacoes da Bahia S.A
27947 515 53 53 Telconet S.A

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
24863 804 147 43 LINKdotNET AS number
8452 681 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 193 28 64 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3588 3817 228 bellsouth.net, inc.
23456 3059 732 1641 32-bit ASN transition
4766 2519 11046 955 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1892 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1817 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1591 1538 623 Charter Communications
7029 1574 991 228 Windstream Communications Inc
10620 1574 290 165 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
17974 1892 1861 PT TELEKOMUNIKASI INDONESIA
1785 1817 1693 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2519 1564 Korea Telecom (KIX)
7545 1569 1484 TPG Internet Pty Ltd
23456 3059 1418 32-bit ASN transition
10620 1574 1409 TVCABLE BOGOTA
7552 1408 1401 Vietel Corporation
4755 1535 1365 TATA Communications formerly
7029 1574 1346 Windstream Communications Inc

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:233
/13:465 /14:800 /15:1414 /16:12058 /17:5904 /18:9926
/19:19538 /20:26527 /21:26528 /22:35406 /23:34159 /24:191053
/25:1097 /26:1298 /27:735 /28:201 /29:4 /30:0
/31:0 /32:5

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2219 3588 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1499 3059 32-bit ASN transition
10620 1469 1574 TVCABLE BOGOTA
7029 1275 1574 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1159 Citizens Utilities
1785 1052 1817 PaeTec Communications, Inc.
22773 905 1409 Cox Communications, Inc.
30036 898 920 Mediacom Communications Corp

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:354 2:45 4:15 5:1 6:3 8:340
12:1961 13:1 14:509 15:15 16:3 17:5
20:10 23:19 24:1686 27:872 31:512 32:64
33:4 34:2 36:4 38:732 40:107 41:2512
42:43 44:3 46:1070 47:3 49:219 50:395
52:13 54:2 55:4 56:2 57:35 58:869
59:500 60:379 61:1185 62:1066 63:1931 64:3996
65:2300 66:3919 67:1912 68:1109 69:3086 70:780
71:373 72:1848 74:2432 75:329 76:342 77:863
78:709 79:474 80:1130 81:827 82:487 83:465
84:686 85:1076 86:517 87:837 88:335 89:1534
90:224 91:4038 92:526 93:1117 94:1343 95:869
96:418 97:266 98:906 99:37 101:79 103:190
106:69 107:31 108:73 109:1014 110:625 111:734
112:309 113:407 114:561 115:692 116:992 117:682
118:870 119:1188 120:315 121:690 122:1612 123:982
124:1374 125:1341 128:246 129:174 130:172 131:575
132:114 133:21 134:213 135:52 136:216 137:139
138:296 139:116 140:487 141:266 142:382 143:416
144:477 145:58 146:460 147:214 148:692 149:252
150:159 151:190 152:440 153:182 154:5 155:399
156:199 157:331 158:137 159:458 160:317 161:206
162:310 163:164 164:515 165:366 166:534 167:435
168:748 169:153 170:844 171:81 172:1 173:1645
174:624 175:394 176:147 177:210 178:1005 180:926
181:26 182:518 183:244 184:365 185:1 186:1363
187:742 188:908 189:927 190:5093 192:5911 193:4975
194:3507 195:3054 196:1208 197:122 198:3587 199:4028
200:5501 201:1480 202:8371 203:8482 204:4267 205:2312
206:2678 207:2793 208:4011 209:3415 210:2695 211:1460
212:2086 213:1760 214:772 215:70 216:4852 217:1617
218:556 219:353 220:1230 221:513 222:367 223:235

End of report
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Friday, August 12, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 13 Aug, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 371344
Prefixes after maximum aggregation: 167542
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 182456
Total ASes present in the Internet Routing Table: 38494
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31946
Origin ASes announcing only one prefix: 15357
Transit ASes present in the Internet Routing Table: 5224
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4173
Unregistered ASNs in the Routing Table: 612
Number of 32-bit ASNs allocated by the RIRs: 1645
Number of 32-bit ASNs visible in the Routing Table: 1324
Prefixes from 32-bit ASNs in the Routing Table: 3058
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2494421511
Equivalent to 148 /8s, 173 /16s and 218 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154038

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 90083
Total APNIC prefixes after maximum aggregation: 29343
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 86678
Unique aggregates announced from the APNIC address blocks: 37758
APNIC Region origin ASes present in the Internet Routing Table: 4514
APNIC Prefixes per ASN: 19.20
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 70
Number of APNIC addresses announced to Internet: 624349952
Equivalent to 37 /8s, 54 /16s and 211 /24s
Percentage of available APNIC address space announced: 79.2

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 145643
Total ARIN prefixes after maximum aggregation: 75327
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 117175
Unique aggregates announced from the ARIN address blocks: 47007
ARIN Region origin ASes present in the Internet Routing Table: 14594
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5597
ARIN Region transit ASes present in the Internet Routing Table: 1531
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803445272
Equivalent to 47 /8s, 227 /16s and 154 /24s
Percentage of available ARIN address space announced: 63.9

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 89532
Total RIPE prefixes after maximum aggregation: 49816
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81980
Unique aggregates announced from the RIPE address blocks: 53333
RIPE Region origin ASes present in the Internet Routing Table: 15885
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7903
RIPE Region transit ASes present in the Internet Routing Table: 2521
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 952
Number of RIPE addresses announced to Internet: 487648204
Equivalent to 29 /8s, 16 /16s and 235 /24s
Percentage of available RIPE address space announced: 78.6

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 34474
Total LACNIC prefixes after maximum aggregation: 7641
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 33614
Unique aggregates announced from the LACNIC address blocks: 17327
LACNIC Region origin ASes present in the Internet Routing Table: 1500
LACNIC Prefixes per ASN: 22.41
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 286
Number of LACNIC addresses announced to Internet: 87501056
Equivalent to 5 /8s, 55 /16s and 41 /24s
Percentage of available LACNIC address space announced: 57.9

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8351
Total AfriNIC prefixes after maximum aggregation: 2039
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6480
Unique aggregates announced from the AfriNIC address blocks: 2048
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26922496
Equivalent to 1 /8s, 154 /16s and 206 /24s
Percentage of available AfriNIC address space announced: 40.1

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1917 11069 647 Korea Telecom (KIX)
17974 1826 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1568 301 85 TPG Internet Pty Ltd
4755 1533 375 168 Videsh Sanchar Nigam Ltd. Aut
7552 1406 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd.
9829 1128 963 42 BSNL National Internet Backbo
9583 1070 78 490 Sify Limited
4808 1045 2098 300 CNCGROUP IP network: China169
17488 1005 187 123 Hathway IP Over Cable Interne

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3587 3817 228 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1818 681 125 AppliedTheory Corporation
7029 1636 1018 204 Windstream Communications Inc
4323 1614 1101 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
22773 1409 2903 93 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1371 7069 899 AT&T WorldNet Services
2386 1248 519 898 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 1033 797 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 538 107 185 Tellcom Iletisim Hizmetleri
3292 521 2080 405 TDC Tele Danmark
6830 512 1788 316 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
3320 425 8151 371 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1574 290 165 TVCABLE BOGOTA
8151 1435 2737 354 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1070 579 177 Telecom Argentina Stet-France
6503 753 450 77 AVANTEL, S.A.
14420 705 56 85 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 530 232 96 COLOMBIA TELECOMUNICACIONES S
27947 516 54 49 Telconet S.A

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
24863 806 147 43 LINKdotNET AS number
8452 653 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 194 28 65 YEBO-AS
24835 179 78 10 RAYA Telecom - Egypt

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3587 3817 228 bellsouth.net, inc.
23456 3058 734 1645 >>UNKNOWN<<
4766 1917 11069 647 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1826 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1818 681 125 AppliedTheory Corporation
7029 1636 1018 204 Windstream Communications Inc
4323 1614 1101 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1574 290 165 TVCABLE BOGOTA

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
17974 1826 1795 PT TELEKOMUNIKASI INDONESIA
1785 1818 1693 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1568 1483 TPG Internet Pty Ltd
7029 1636 1432 Windstream Communications Inc
23456 3058 1413 >>UNKNOWN<<
10620 1574 1409 TVCABLE BOGOTA
7552 1406 1399 Vietel Corporation
4755 1533 1365 Videsh Sanchar Nigam Ltd. Aut
22773 1409 1316 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.217.128.0/19 43531 Packetrade Ltd, UK
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:233
/13:466 /14:806 /15:1440 /16:12172 /17:6152 /18:10199
/19:20069 /20:27646 /21:26970 /22:35714 /23:34717 /24:192878
/25:83 /26:86 /27:112 /28:281 /29:71 /30:532
/31:91 /32:486

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2217 3587 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1497 3058 >>UNKNOWN<<
10620 1469 1574 TVCABLE BOGOTA
7029 1322 1636 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1159 Citizens Utilities
1785 1052 1818 AppliedTheory Corporation
22773 905 1409 Cox Communications, Inc.
30036 896 918 Mediacom Communications Corp

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:354 2:47 4:19 5:1 6:3 8:343
12:1963 13:1 14:510 15:15 16:3 17:5
20:10 23:19 24:1691 27:872 31:515 32:149
33:4 34:2 36:4 38:732 40:108 41:2496
42:43 44:3 46:1073 47:3 49:219 50:393
52:13 54:2 55:6 56:2 57:45 58:871
59:501 60:379 61:1189 62:1081 63:1956 64:4060
65:2302 66:3960 67:1946 68:1285 69:3197 70:825
71:373 72:1900 73:1 74:2482 75:341 76:350
77:865 78:710 79:480 80:1134 81:831 82:502
83:471 84:693 85:1082 86:539 87:843 88:340
89:1556 90:224 91:4049 92:527 93:1128 94:1337
95:870 96:422 97:266 98:933 99:37 101:79
103:187 106:79 107:31 108:80 109:1023 110:628
111:732 112:308 113:409 114:563 115:696 116:1007
117:682 118:870 119:1186 120:315 121:706 122:1612
123:984 124:1372 125:1326 128:247 129:177 130:171
131:581 132:116 133:21 134:214 135:52 136:210
137:140 138:296 139:129 140:488 141:274 142:383
143:420 144:488 145:58 146:460 147:226 148:696
149:252 150:162 151:190 152:440 153:182 154:5
155:400 156:199 157:333 158:137 159:458 160:317
161:208 162:309 163:164 164:515 165:396 166:535
167:434 168:747 169:154 170:847 171:81 172:1
173:1663 174:625 175:394 176:164 177:209 178:1010
180:936 181:26 182:518 183:241 184:365 185:1
186:1364 187:739 188:907 189:926 190:5056 192:5943
193:4991 194:3553 195:3131 196:1218 197:123 198:3603
199:4041 200:5540 201:1479 202:8421 203:8486 204:4270
205:2334 206:2740 207:2807 208:4140 209:3505 210:2693
211:1463 212:2136 213:1773 214:770 215:70 216:4943
217:1621 218:552 219:355 220:1231 221:514 222:360
223:234

End of report
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