BGP Routing: 2011-07-17

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, July 23, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 24 Jul, 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: 370325
Prefixes after maximum aggregation: 166916
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180785
Total ASes present in the Internet Routing Table: 38297
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31789
Origin ASes announcing only one prefix: 15261
Transit ASes present in the Internet Routing Table: 5225
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 39
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4044
Unregistered ASNs in the Routing Table: 578
Number of 32-bit ASNs allocated by the RIRs: 1585
Number of 32-bit ASNs visible in the Routing Table: 1283
Prefixes from 32-bit ASNs in the Routing Table: 2960
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2485120063
Equivalent to 148 /8s, 31 /16s and 236 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 154096

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

Prefixes being announced by APNIC Region ASes: 89221
Total APNIC prefixes after maximum aggregation: 29225
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 85902
Unique aggregates announced from the APNIC address blocks: 37456
APNIC Region origin ASes present in the Internet Routing Table: 4506
APNIC Prefixes per ASN: 19.06
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 710
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 62
Number of APNIC addresses announced to Internet: 622266881
Equivalent to 37 /8s, 23 /16s and 10 /24s
Percentage of available APNIC address space announced: 78.9

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 145373
Total ARIN prefixes after maximum aggregation: 75125
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116894
Unique aggregates announced from the ARIN address blocks: 46631
ARIN Region origin ASes present in the Internet Routing Table: 14521
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5560
ARIN Region transit ASes present in the Internet Routing Table: 1521
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 802796184
Equivalent to 47 /8s, 217 /16s and 178 /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: 90029
Total RIPE prefixes after maximum aggregation: 49691
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82672
Unique aggregates announced from the RIPE address blocks: 52752
RIPE Region origin ASes present in the Internet Routing Table: 15833
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7839
RIPE Region transit ASes present in the Internet Routing Table: 2526
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 39
Number of RIPE region 32-bit ASNs visible in the Routing Table: 933
Number of RIPE addresses announced to Internet: 484732812
Equivalent to 28 /8s, 228 /16s and 111 /24s
Percentage of available RIPE address space announced: 78.1

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: 34074
Total LACNIC prefixes after maximum aggregation: 7638
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33329
Unique aggregates announced from the LACNIC address blocks: 17133
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.35
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 272
Number of LACNIC addresses announced to Internet: 86439424
Equivalent to 5 /8s, 38 /16s and 246 /24s
Percentage of available LACNIC address space announced: 57.2

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: 8378
Total AfriNIC prefixes after maximum aggregation: 1974
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6487
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.66
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24516352
Equivalent to 1 /8s, 118 /16s and 23 /24s
Percentage of available AfriNIC address space announced: 36.5

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 1915 11053 638 Korea Telecom (KIX)
17974 1790 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1554 301 85 TPG Internet Pty Ltd
4755 1459 375 169 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1064 7 Vietel Corporation
24560 1161 336 187 Bharti Airtel Ltd.
9829 1113 929 42 BSNL National Internet Backbo
9583 1056 77 497 Sify Limited
4808 1018 2057 287 CNCGROUP IP network: China169
17488 980 188 112 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 3616 3818 238 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1812 681 123 AppliedTheory Corporation
4323 1613 1098 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1412 4760 392 Verizon Global Networks
7029 1379 1014 204 Windstream Communications Inc
7018 1373 7085 900 AT&T WorldNet Services
22773 1353 2897 89 Cox Communications, Inc.
2386 1258 520 907 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 1030 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 521 2078 403 TDC Tele Danmark
6830 514 1788 317 UPC Distribution Services
20940 465 133 358 Akamai Technologies European
8866 455 133 26 Bulgarian Telecommunication C
12479 454 593 7 Uni2 Autonomous System
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG

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 1559 287 163 TVCABLE BOGOTA
8151 1384 2728 351 Uninet S.A. de C.V.
28573 1283 995 78 Types of queries are: POCs, o
7303 991 514 166 Telecom Argentina Stet-France
6503 745 354 69 AVANTEL, S.A.
14420 700 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
7738 516 986 31 Telecomunicacoes da Bahia 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 795 147 41 LINKdotNET AS number
36992 770 469 19 Etisalat MISR
8452 762 445 11 TEDATA
16637 300 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 161 78 10 RAYA Telecom - Egypt
15706 158 32 6 Sudatel Internet Exchange Aut
29571 158 17 11 Ci Telecom Autonomous system

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 3616 3818 238 bellsouth.net, inc.
23456 2960 714 1588 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1915 11053 638 Korea Telecom (KIX)
1785 1812 681 123 AppliedTheory Corporation
17974 1790 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1613 1098 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1554 301 85 TPG Internet Pty Ltd

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 1790 1759 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1812 1689 AppliedTheory Corporation
7545 1554 1469 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2960 1372 >>UNKNOWN<<
7552 1298 1291 Vietel Corporation
4755 1459 1290 Videsh Sanchar Nigam Ltd. Aut
4766 1915 1277 Korea Telecom (KIX)
22773 1353 1264 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
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/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 /11:80 /12:232
/13:465 /14:804 /15:1430 /16:12155 /17:6137 /18:10131
/19:20069 /20:27348 /21:26798 /22:35402 /23:34477 /24:191889
/25:380 /26:350 /27:177 /28:309 /29:229 /30:683
/31:63 /32:658

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

ASN No of nets Total ann. Description
6389 2236 3616 bellsouth.net, inc.
18566 1907 1957 Covad Communications
23456 1469 2960 >>UNKNOWN<<
10620 1454 1559 TVCABLE BOGOTA
11492 1096 1142 Cable One
7029 1070 1379 Windstream Communications Inc
7011 1055 1157 Citizens Utilities
1785 1054 1812 AppliedTheory Corporation
6478 997 1025 AT&T Worldnet Services
286 891 1030 KPNQwest Backbone AS

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

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

1:335 2:67 4:20 5:1 6:3 8:339
12:1967 13:1 14:492 15:15 16:3 17:5
20:10 23:14 24:1685 27:844 31:508 32:135
33:4 34:2 36:4 38:730 40:104 41:2573
42:35 44:3 46:1057 47:3 49:200 50:383
52:13 54:2 55:4 56:2 57:45 58:862
59:482 60:381 61:1182 62:1055 63:1955 64:4045
65:2298 66:3924 67:1918 68:1285 69:3171 70:813
71:373 72:1902 73:1 74:2473 75:336 76:349
77:894 78:713 79:488 80:1122 81:880 82:517
83:472 84:702 85:1084 86:538 87:784 88:339
89:1577 90:224 91:3969 92:527 93:1078 94:1366
95:918 96:424 97:263 98:929 99:37 101:77
103:143 106:75 107:25 108:81 109:1032 110:618
111:714 112:305 113:412 114:563 115:684 116:999
117:690 118:862 119:1170 120:315 121:692 122:1608
123:975 124:1305 125:1280 128:247 129:172 130:170
131:582 132:112 133:21 134:215 135:52 136:215
137:139 138:300 139:129 140:480 141:252 142:406
143:416 144:476 145:54 146:453 147:223 148:616
149:249 150:159 151:189 152:336 153:182 154:5
155:395 156:196 157:351 158:140 159:455 160:315
161:204 162:310 163:166 164:506 165:395 166:533
167:435 168:740 169:154 170:845 171:80 172:1
173:1632 174:626 175:381 176:144 177:170 178:1021
180:914 181:24 182:513 183:233 184:343 185:1
186:1310 187:748 188:894 189:949 190:5013 192:5945
193:5016 194:3577 195:3183 196:1213 197:43 198:3596
199:3990 200:5561 201:1477 202:8388 203:8445 204:4236
205:2355 206:2732 207:2818 208:4120 209:3525 210:2686
211:1450 212:2140 213:1818 214:756 215:70 216:5008
217:1666 218:547 219:345 220:1234 221:498 222:360
223:221

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 24 Jul, 2011

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

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

BGP routing table entries examined: 358808
Prefixes after maximum aggregation: 163554
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180820
Total ASes present in the Internet Routing Table: 36819
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 31757
Origin ASes announcing only one prefix: 15305
Transit ASes present in the Internet Routing Table: 5062
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2325
Unregistered ASNs in the Routing Table: 631
Number of 32-bit ASNs allocated by the RIRs: 1585
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2930
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2501316608
Equivalent to 149 /8s, 23 /16s and 16 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 148152

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

Prefixes being announced by APNIC Region ASes: 86464
Total APNIC prefixes after maximum aggregation: 29005
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84082
Unique aggregates announced from the APNIC address blocks: 37485
APNIC Region origin ASes present in the Internet Routing Table: 4468
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.1
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: 621713664
Equivalent to 37 /8s, 14 /16s and 153 /24s
Percentage of available APNIC address space announced: 78.8

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

Prefixes being announced by ARIN Region ASes: 140452
Total ARIN prefixes after maximum aggregation: 72530
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112632
Unique aggregates announced from the ARIN address blocks: 46661
ARIN Region origin ASes present in the Internet Routing Table: 14432
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5551
ARIN Region transit ASes present in the Internet Routing Table: 1455
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: 802736896
Equivalent to 47 /8s, 216 /16s and 203 /24s
Percentage of available ARIN address space announced: 63.8

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

Prefixes being announced by RIPE Region ASes: 86965
Total RIPE prefixes after maximum aggregation: 49267
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80332
Unique aggregates announced from the RIPE address blocks: 52933
RIPE Region origin ASes present in the Internet Routing Table: 15797
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7889
RIPE Region transit ASes present in the Internet Routing Table: 2485
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484070912
Equivalent to 28 /8s, 218 /16s and 86 /24s
Percentage of available RIPE address space announced: 78.0

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

Prefixes being announced by LACNIC Region ASes: 33075
Total LACNIC prefixes after maximum aggregation: 7548
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32438
Unique aggregates announced from the LACNIC address blocks: 17112
LACNIC Region origin ASes present in the Internet Routing Table: 1476
LACNIC Prefixes per ASN: 21.98
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 86382848
Equivalent to 5 /8s, 38 /16s and 25 /24s
Percentage of available LACNIC address space announced: 57.2

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: 8227
Total AfriNIC prefixes after maximum aggregation: 1967
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6542
Unique aggregates announced from the AfriNIC address blocks: 1996
AfriNIC Region origin ASes present in the Internet Routing Table: 471
AfriNIC Prefixes per ASN: 13.89
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24492544
Equivalent to 1 /8s, 117 /16s and 186 /24s
Percentage of available AfriNIC address space announced: 36.5

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 1914 11037 637 Korea Telecom (KIX)
17974 1557 508 32 PT Telekomunikasi Indonesia
7545 1553 301 84 TPG Internet Pty Ltd
4755 1503 375 170 TATA Communications formerly
24560 1161 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 National Internet Backbone
9583 1056 77 497 Sify Limited
17488 963 188 112 Hathway IP Over Cable Interne
4808 949 2003 274 CNCGROUP IP network China169
18101 933 116 139 Reliance Infocom Ltd Internet

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 3616 3818 239 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1814 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
19262 1411 4760 391 Verizon Online LLC
7029 1391 1031 209 Windstream Communications Inc
7018 1374 7101 900 AT&T Services, Inc.
22773 1352 2897 89 Cox Communications Inc.
2386 1259 521 907 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 534 106 185 BILISIM TELEKOM
6830 511 1788 316 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 460 132 355 Akamai Technologies European
12479 454 593 7 France Telecom Espana SA
8866 453 133 26 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
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 1559 287 163 Types of queries are: POCs, o
28573 1269 995 78 Types of queries are: POCs, o
8151 1252 2728 348 Uninet S.A. de C.V.
7303 991 514 166 Telecom Argentina S.A.
6503 741 354 74 Axtel, S.A.B. de C.V.
14420 700 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
14117 498 45 43 Telefonica del Sur S.A.

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
36992 824 489 19 Etisalat MISR
8452 814 445 11 TEDATA
24863 795 147 40 LINKdotNET AS number
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 161 78 10 RAYA Telecom - Egypt
15706 158 32 6 Sudatel Internet Exchange Aut
29571 158 17 11 Ci Telecom Autonomous system
16637 149 441 87 MTN Network Solutions

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 3616 3818 239 BellSouth.net Inc.
23456 2930 711 1575 32-bit ASN transition
4766 1914 11037 637 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications Co.
1785 1814 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1589 1538 623 Charter Communications
10620 1559 287 163 Types of queries are: POCs, o
17974 1557 508 32 PT Telekomunikasi Indonesia
7545 1553 301 84 TPG Internet Pty Ltd

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 1814 1692 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1557 1525 PT Telekomunikasi Indonesia
7545 1553 1469 TPG Internet Pty Ltd
10620 1559 1396 Types of queries are: POCs, o
23456 2930 1355 32-bit ASN transition
4755 1503 1333 TATA Communications formerly
4766 1914 1277 Korea Telecom (KIX)
22773 1352 1263 Cox Communications Inc.
4323 1615 1213 tw telecom holdings, inc.

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
--------------------------------

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 /11:80 /12:233
/13:465 /14:797 /15:1402 /16:12007 /17:5865 /18:9779
/19:19613 /20:26014 /21:26164 /22:34618 /23:33474 /24:187725
/25:12 /26:19 /27:23 /28:160 /29:106 /30:59
/31:0 /32:133

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

ASN No of nets Total ann. Description
6389 2235 3616 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1454 1559 Types of queries are: POCs, o
23456 1449 2930 32-bit ASN transition
11492 1096 1142 CABLE ONE, INC.
7029 1071 1391 Windstream Communications Inc
7011 1055 1157 Frontier Communications of Am
1785 1054 1814 PaeTec Communications, Inc.
6478 997 1025 AT&T Services, Inc.
22773 867 1352 Cox Communications Inc.

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

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

1:333 2:45 4:16 5:1 6:3 8:338
12:1962 13:1 14:482 15:15 16:3 17:5
20:10 23:14 24:1677 27:836 31:503 32:59
33:4 34:2 36:4 38:725 40:104 41:2614
42:35 44:3 46:1048 47:3 49:202 50:383
52:13 54:2 55:4 56:2 57:33 58:816
59:476 60:379 61:1019 62:1032 63:1926 64:3965
65:2296 66:3864 67:1885 68:1100 69:3054 70:765
71:373 72:1868 74:2417 75:323 76:340 77:852
78:706 79:475 80:1112 81:841 82:504 83:468
84:691 85:1063 86:517 87:765 88:334 89:1536
90:224 91:3952 92:526 93:1060 94:1340 95:864
96:415 97:263 98:891 99:37 101:72 103:143
106:75 107:25 108:73 109:1022 110:608 111:712
112:298 113:407 114:557 115:665 116:963 117:666
118:820 119:1161 120:314 121:651 122:1601 123:966
124:1269 125:1231 128:208 129:163 130:164 131:577
132:104 133:21 134:206 135:52 136:213 137:136
138:300 139:114 140:459 141:252 142:387 143:412
144:472 145:54 146:447 147:212 148:602 149:248
150:152 151:189 152:335 153:182 154:4 155:393
156:195 157:321 158:140 159:387 160:313 161:195
162:307 163:156 164:506 165:363 166:531 167:433
168:735 169:151 170:845 171:80 172:1 173:1613
174:624 175:367 176:144 177:170 178:1008 180:897
181:23 182:495 183:233 184:341 185:1 186:1306
187:729 188:892 189:949 190:4986 192:5867 193:4975
194:3512 195:3013 196:1207 197:43 198:3528 199:3938
200:5492 201:1472 202:8204 203:8347 204:4149 205:2310
206:2581 207:2733 208:3982 209:3412 210:2590 211:1437
212:2099 213:1737 214:757 215:70 216:4923 217:1652
218:534 219:343 220:1195 221:481 222:311 223:219

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 24 Jul, 2011

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

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

BGP routing table entries examined: 364342
Prefixes after maximum aggregation: 165671
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180827
Total ASes present in the Internet Routing Table: 38256
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31796
Origin ASes announcing only one prefix: 15310
Transit ASes present in the Internet Routing Table: 5193
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 949
Unregistered ASNs in the Routing Table: 549
Number of 32-bit ASNs allocated by the RIRs: 1585
Number of 32-bit ASNs visible in the Routing Table: 1267
Prefixes from 32-bit ASNs in the Routing Table: 2922
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2484348992
Equivalent to 148 /8s, 20 /16s and 40 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151721

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

Prefixes being announced by APNIC Region ASes: 91278
Total APNIC prefixes after maximum aggregation: 30359
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87868
Unique aggregates announced from the APNIC address blocks: 37454
APNIC Region origin ASes present in the Internet Routing Table: 4522
APNIC Prefixes per ASN: 19.43
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 62
Number of APNIC addresses announced to Internet: 622434592
Equivalent to 37 /8s, 25 /16s and 153 /24s
Percentage of available APNIC address space announced: 78.9

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

Prefixes being announced by ARIN Region ASes: 141743
Total ARIN prefixes after maximum aggregation: 73177
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113607
Unique aggregates announced from the ARIN address blocks: 46682
ARIN Region origin ASes present in the Internet Routing Table: 14510
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5570
ARIN Region transit ASes present in the Internet Routing Table: 1525
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: 802761344
Equivalent to 47 /8s, 217 /16s and 42 /24s
Percentage of available ARIN address space announced: 63.8

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

Prefixes being announced by RIPE Region ASes: 86548
Total RIPE prefixes after maximum aggregation: 49314
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79931
Unique aggregates announced from the RIPE address blocks: 52925
RIPE Region origin ASes present in the Internet Routing Table: 15809
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7889
RIPE Region transit ASes present in the Internet Routing Table: 2505
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: 918
Number of RIPE addresses announced to Internet: 484034688
Equivalent to 28 /8s, 217 /16s and 200 /24s
Percentage of available RIPE address space announced: 78.0

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

Prefixes being announced by LACNIC Region ASes: 33512
Total LACNIC prefixes after maximum aggregation: 7623
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32760
Unique aggregates announced from the LACNIC address blocks: 17073
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 271
Number of LACNIC addresses announced to Internet: 86434816
Equivalent to 5 /8s, 38 /16s and 228 /24s
Percentage of available LACNIC address space announced: 57.2

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: 8162
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6474
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.66
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24500480
Equivalent to 1 /8s, 117 /16s and 217 /24s
Percentage of available AfriNIC address space announced: 36.5

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 2474 11045 942 Korea Telecom (KIX)
17974 1789 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1555 301 85 TPG Internet Pty Ltd
4755 1507 635 171 TATA Communications formerly
7552 1298 1064 7 Vietel Corporation
24560 1161 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 BSNL National Internet Backbo
9583 1056 77 497 Sify Limited
4808 1051 2092 299 CNCGROUP IP network: China169
17488 965 188 112 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 3615 3818 240 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1811 681 122 PaeTec Communications, Inc.
4323 1615 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1411 4760 391 Verizon Global Networks
7018 1363 7068 890 AT&T WorldNet Services
22773 1353 2897 89 Cox Communications, Inc.
7029 1293 791 304 Windstream Communications Inc
2386 1258 520 907 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 534 106 185 BILISIM TELEKOM
6830 512 1788 316 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 459 132 354 Akamai Technologies European
12479 454 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
8551 403 354 44 Bezeq International
702 397 1802 310 UUNET - Commercial IP service

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 1559 287 163 TVCABLE BOGOTA
28573 1283 995 78 NET Servicos de Comunicao S.A
8151 1270 2746 351 UniNet S.A. de C.V.
7303 991 514 166 Telecom Argentina Stet-France
6503 750 354 73 AVANTEL, S.A.
14420 700 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 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
36992 824 489 19 Etisalat MISR
24863 796 147 42 LINKdotNET AS number
8452 761 445 11 TEDATA
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 161 78 10 RAYA Telecom - Egypt
15706 158 32 6 Sudatel Internet Exchange Aut
29571 158 17 11 Ci Telecom Autonomous system
16637 146 409 84 MTN Network Solutions

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 3615 3818 240 bellsouth.net, inc.
23456 2922 710 1569 32-bit ASN transition
4766 2474 11045 942 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1811 681 122 PaeTec Communications, Inc.
17974 1789 508 32 PT TELEKOMUNIKASI INDONESIA
4323 1615 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1555 301 85 TPG Internet Pty Ltd

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 1789 1757 PT TELEKOMUNIKASI INDONESIA
1785 1811 1689 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2474 1532 Korea Telecom (KIX)
7545 1555 1470 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2922 1353 32-bit ASN transition
4755 1507 1336 TATA Communications formerly
7552 1298 1291 Vietel Corporation
22773 1353 1264 Cox 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
--------------------------------

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 /11:80 /12:232
/13:465 /14:798 /15:1402 /16:12041 /17:5880 /18:9836
/19:19529 /20:26181 /21:26254 /22:34962 /23:33862 /24:189630
/25:1078 /26:1263 /27:733 /28:40 /29:9 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2235 3615 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1454 1559 TVCABLE BOGOTA
23456 1444 2922 32-bit ASN transition
11492 1096 1142 Cable One
7011 1055 1157 Citizens Utilities
1785 1054 1811 PaeTec Communications, Inc.
7029 1040 1293 Windstream Communications Inc
6478 997 1025 AT&T Worldnet Services
22773 868 1353 Cox Communications, Inc.

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

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

1:335 2:45 4:16 5:1 6:3 8:338
12:1964 13:1 14:492 15:15 16:3 17:5
20:10 23:14 24:1680 27:842 31:505 32:64
33:4 34:2 36:4 38:728 40:104 41:2568
42:35 44:3 46:1050 47:3 49:202 50:383
52:13 54:2 55:4 56:2 57:35 58:860
59:472 60:381 61:1179 62:1031 63:1928 64:3988
65:2297 66:3879 67:1883 68:1107 69:3057 70:768
71:373 72:1869 74:2421 75:324 76:341 77:853
78:703 79:466 80:1114 81:840 82:498 83:465
84:691 85:1063 86:519 87:764 88:333 89:1537
90:224 91:3943 92:526 93:1060 94:1338 95:862
96:420 97:263 98:891 99:37 101:74 103:143
106:75 107:24 108:73 109:1019 110:611 111:713
112:305 113:410 114:557 115:683 116:986 117:690
118:863 119:1169 120:315 121:675 122:1608 123:976
124:1305 125:1278 128:246 129:169 130:170 131:579
132:113 133:21 134:213 135:52 136:215 137:139
138:300 139:116 140:480 141:252 142:403 143:414
144:476 145:54 146:452 147:211 148:614 149:249
150:159 151:189 152:336 153:182 154:5 155:395
156:196 157:350 158:140 159:455 160:315 161:204
162:310 163:166 164:505 165:365 166:531 167:433
168:739 169:153 170:845 171:80 172:1 173:1614
174:624 175:381 176:143 177:170 178:1007 180:906
181:23 182:508 183:234 184:343 185:1 186:1307
187:762 188:891 189:949 190:5004 192:5913 193:4973
194:3517 195:3012 196:1203 197:43 198:3581 199:3981
200:5564 201:1477 202:8416 203:8441 204:4228 205:2333
206:2666 207:2806 208:3992 209:3436 210:2684 211:1446
212:2085 213:1744 214:761 215:70 216:4951 217:1652
218:545 219:347 220:1231 221:497 222:360 223:221

End of report
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Friday, July 22, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 23 Jul, 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: 370746
Prefixes after maximum aggregation: 166980
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180738
Total ASes present in the Internet Routing Table: 38308
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 31808
Origin ASes announcing only one prefix: 15256
Transit ASes present in the Internet Routing Table: 5216
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 39
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4041
Unregistered ASNs in the Routing Table: 579
Number of 32-bit ASNs allocated by the RIRs: 1585
Number of 32-bit ASNs visible in the Routing Table: 1284
Prefixes from 32-bit ASNs in the Routing Table: 2961
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2485093191
Equivalent to 148 /8s, 31 /16s and 131 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 154416

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

Prefixes being announced by APNIC Region ASes: 89280
Total APNIC prefixes after maximum aggregation: 29225
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 85966
Unique aggregates announced from the APNIC address blocks: 37461
APNIC Region origin ASes present in the Internet Routing Table: 4506
APNIC Prefixes per ASN: 19.08
APNIC Region origin ASes announcing only one prefix: 1263
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: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 62
Number of APNIC addresses announced to Internet: 622355457
Equivalent to 37 /8s, 24 /16s and 100 /24s
Percentage of available APNIC address space announced: 78.9

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

Prefixes being announced by ARIN Region ASes: 145426
Total ARIN prefixes after maximum aggregation: 75138
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116937
Unique aggregates announced from the ARIN address blocks: 46584
ARIN Region origin ASes present in the Internet Routing Table: 14525
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5560
ARIN Region transit ASes present in the Internet Routing Table: 1515
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802794648
Equivalent to 47 /8s, 217 /16s and 172 /24s
Percentage of available ARIN address space announced: 63.8

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

Prefixes being announced by RIPE Region ASes: 90005
Total RIPE prefixes after maximum aggregation: 49694
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82645
Unique aggregates announced from the RIPE address blocks: 52757
RIPE Region origin ASes present in the Internet Routing Table: 15840
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7839
RIPE Region transit ASes present in the Internet Routing Table: 2530
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 39
Number of RIPE region 32-bit ASNs visible in the Routing Table: 933
Number of RIPE addresses announced to Internet: 484655756
Equivalent to 28 /8s, 227 /16s and 66 /24s
Percentage of available RIPE address space announced: 78.1

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

Prefixes being announced by LACNIC Region ASes: 34344
Total LACNIC prefixes after maximum aggregation: 7682
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33481
Unique aggregates announced from the LACNIC address blocks: 17110
LACNIC Region origin ASes present in the Internet Routing Table: 1490
LACNIC Prefixes per ASN: 22.47
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 272
Number of LACNIC addresses announced to Internet: 86450952
Equivalent to 5 /8s, 39 /16s and 35 /24s
Percentage of available LACNIC address space announced: 57.3

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: 8438
Total AfriNIC prefixes after maximum aggregation: 1978
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6539
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24454400
Equivalent to 1 /8s, 117 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 36.4

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 1911 11052 634 Korea Telecom (KIX)
17974 1795 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1554 301 85 TPG Internet Pty Ltd
4755 1506 375 170 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1064 7 Vietel Corporation
24560 1157 336 187 Bharti Airtel Ltd.
9829 1108 923 47 BSNL National Internet Backbo
9583 1070 79 506 Sify Limited
4808 1018 2057 287 CNCGROUP IP network: China169
17488 982 187 107 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 3614 3818 238 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1812 681 123 AppliedTheory Corporation
4323 1614 1098 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1412 4760 392 Verizon Global Networks
7029 1389 1031 207 Windstream Communications Inc
7018 1374 7085 901 AT&T WorldNet Services
22773 1353 2897 89 Cox Communications, Inc.
2386 1259 521 907 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 1030 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 521 2078 403 TDC Tele Danmark
6830 514 1788 317 UPC Distribution Services
20940 467 133 360 Akamai Technologies European
8866 454 133 25 Bulgarian Telecommunication C
12479 454 593 7 Uni2 Autonomous System
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG

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 1559 287 163 TVCABLE BOGOTA
8151 1427 2728 353 Uninet S.A. de C.V.
28573 1277 995 78 Types of queries are: POCs, o
7303 1013 514 178 Telecom Argentina Stet-France
6503 764 354 75 AVANTEL, S.A.
14420 700 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 532 232 97 COLOMBIA TELECOMUNICACIONES S
27947 522 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
8452 817 445 11 TEDATA
24863 793 147 41 LINKdotNET AS number
15475 512 74 8 Nile Online
36992 317 415 15 Etisalat MISR
16637 302 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 161 78 10 RAYA Telecom - Egypt
15706 158 32 6 Sudatel Internet Exchange Aut

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 3614 3818 238 bellsouth.net, inc.
23456 2961 715 1588 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1911 11052 634 Korea Telecom (KIX)
1785 1812 681 123 AppliedTheory Corporation
17974 1795 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1614 1098 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1554 301 85 TPG Internet Pty Ltd

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 1795 1764 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1812 1689 AppliedTheory Corporation
7545 1554 1469 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2961 1373 >>UNKNOWN<<
4755 1506 1336 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1291 Vietel Corporation
4766 1911 1277 Korea Telecom (KIX)
22773 1353 1264 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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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)
-----------------------------------------------------------

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

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

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 /8:21 /9:12 /10:27 /11:80 /12:232
/13:465 /14:804 /15:1428 /16:12156 /17:6143 /18:10125
/19:20073 /20:27333 /21:26824 /22:35395 /23:34507 /24:192118
/25:394 /26:353 /27:183 /28:366 /29:278 /30:702
/31:63 /32:664

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

ASN No of nets Total ann. Description
6389 2234 3614 bellsouth.net, inc.
18566 1907 1957 Covad Communications
23456 1470 2961 >>UNKNOWN<<
10620 1454 1559 TVCABLE BOGOTA
11492 1096 1142 Cable One
7029 1073 1389 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
1785 1054 1812 AppliedTheory Corporation
6478 997 1025 AT&T Worldnet Services
286 891 1030 KPNQwest Backbone AS

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

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

1:331 2:67 4:20 5:1 6:3 8:341
12:1968 13:1 14:490 15:15 16:3 17:5
20:10 23:14 24:1685 27:844 31:507 32:135
33:4 34:2 36:4 38:732 40:104 41:2615
42:35 44:3 46:1050 47:3 49:198 50:383
52:13 54:2 55:7 56:2 57:45 58:862
59:482 60:385 61:1184 62:1056 63:1956 64:4045
65:2301 66:3926 67:1920 68:1287 69:3174 70:823
71:373 72:1898 73:1 74:2483 75:345 76:338
77:894 78:710 79:485 80:1122 81:881 82:516
83:472 84:704 85:1081 86:537 87:784 88:339
89:1575 90:224 91:3983 92:527 93:1072 94:1367
95:916 96:424 97:263 98:929 99:37 101:77
103:142 106:73 107:24 108:81 109:1027 110:619
111:715 112:305 113:415 114:563 115:685 116:1000
117:690 118:862 119:1173 120:315 121:693 122:1608
123:975 124:1304 125:1280 128:247 129:172 130:170
131:582 132:113 133:21 134:215 135:52 136:215
137:138 138:300 139:129 140:478 141:253 142:406
143:416 144:477 145:54 146:455 147:229 148:675
149:249 150:159 151:189 152:338 153:182 154:5
155:397 156:198 157:352 158:140 159:455 160:315
161:204 162:310 163:166 164:506 165:397 166:534
167:435 168:740 169:154 170:849 171:80 172:1
173:1631 174:626 175:384 176:144 177:169 178:1017
180:915 181:24 182:512 183:234 184:345 185:1
186:1310 187:780 188:898 189:947 190:5006 192:5941
193:5019 194:3578 195:3189 196:1214 197:42 198:3590
199:3990 200:5580 201:1477 202:8426 203:8449 204:4236
205:2353 206:2733 207:2820 208:4114 209:3522 210:2685
211:1454 212:2144 213:1804 214:762 215:70 216:5011
217:1667 218:547 219:351 220:1230 221:496 222:360
223:220

End of report
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