BGP Routing: 2011-09-04

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, September 10, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 11 Sep, 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: 374954
Prefixes after maximum aggregation: 168440
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 179017
Total ASes present in the Internet Routing Table: 38730
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 32189
Origin ASes announcing only one prefix: 15444
Transit ASes present in the Internet Routing Table: 5143
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 46
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 4467
Unregistered ASNs in the Routing Table: 708
Number of 32-bit ASNs allocated by the RIRs: 1712
Number of 32-bit ASNs visible in the Routing Table: 1398
Prefixes from 32-bit ASNs in the Routing Table: 3230
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2306939030
Equivalent to 137 /8s, 129 /16s and 24 /24s
Percentage of available address space announced: 62.2
Percentage of allocated address space announced: 62.2
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: 155255

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

Prefixes being announced by APNIC Region ASes: 91650
Total APNIC prefixes after maximum aggregation: 29461
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88285
Unique aggregates announced from the APNIC address blocks: 36824
APNIC Region origin ASes present in the Internet Routing Table: 4543
APNIC Prefixes per ASN: 19.43
APNIC Region origin ASes announcing only one prefix: 1264
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: 83
Number of APNIC addresses announced to Internet: 609890048
Equivalent to 36 /8s, 90 /16s and 47 /24s
Percentage of available APNIC address space announced: 77.3

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: 146573
Total ARIN prefixes after maximum aggregation: 75427
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118056
Unique aggregates announced from the ARIN address blocks: 44843
ARIN Region origin ASes present in the Internet Routing Table: 14646
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5622
ARIN Region transit ASes present in the Internet Routing Table: 1508
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 667312796
Equivalent to 39 /8s, 198 /16s and 98 /24s
Percentage of available ARIN address space announced: 53.0

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: 89893
Total RIPE prefixes after maximum aggregation: 50132
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82156
Unique aggregates announced from the RIPE address blocks: 52692
RIPE Region origin ASes present in the Internet Routing Table: 15958
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7946
RIPE Region transit ASes present in the Internet Routing Table: 2470
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 46
Number of RIPE region 32-bit ASNs visible in the Routing Table: 995
Number of RIPE addresses announced to Internet: 473878476
Equivalent to 28 /8s, 62 /16s and 207 /24s
Percentage of available RIPE address space announced: 76.3

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: 35036
Total LACNIC prefixes after maximum aggregation: 7778
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 34283
Unique aggregates announced from the LACNIC address blocks: 17692
LACNIC Region origin ASes present in the Internet Routing Table: 1519
LACNIC Prefixes per ASN: 22.57
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 304
Number of LACNIC addresses announced to Internet: 88407560
Equivalent to 5 /8s, 68 /16s and 254 /24s
Percentage of available LACNIC address space announced: 58.6

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: 2068
AfriNIC Deaggregation factor: 4.05
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: 485
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 159
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: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27322880
Equivalent to 1 /8s, 160 /16s and 234 /24s
Percentage of available AfriNIC address space announced: 40.7

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
17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
7545 1578 301 83 TPG Internet Pty Ltd
4755 1543 638 168 Videsh Sanchar Nigam Ltd. Aut
7552 1415 1064 7 Vietel Corporation
24560 1178 336 193 Bharti Airtel Ltd.
9829 1141 989 28 BSNL National Internet Backbo
9583 1079 80 503 Sify Limited
17488 1004 192 158 Hathway IP Over Cable Interne
18101 949 118 139 Reliance Infocom Ltd Internet

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 3566 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
7029 1627 1037 210 Windstream Communications Inc
4323 1622 1101 394 Time Warner Telecom
20115 1592 1541 632 Charter Communications
22773 1452 2907 99 Cox Communications, Inc.
19262 1395 4724 399 Verizon Global Networks
7018 1338 7067 877 AT&T WorldNet Services
30036 1328 244 688 Mediacom Communications Corp

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 1068 824 198 KPNQwest Backbone AS
34984 544 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 527 1811 322 UPC Distribution Services
3292 520 2079 404 TDC Tele Danmark
20940 506 156 393 Akamai Technologies European
12479 468 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 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 1661 305 161 TVCABLE BOGOTA
8151 1440 2783 353 Uninet S.A. de C.V.
28573 1299 1003 71 Types of queries are: POCs, o
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 593 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 578 56 77 Telconet S.A
10481 548 430 20 Prima S.A.
3816 538 232 99 COLOMBIA TELECOMUNICACIONES S

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 811 147 42 LINKdotNET AS number
8452 642 445 11 TEDATA
15475 510 74 8 Nile Online
36992 296 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 194 28 63 YEBO-AS
24835 179 70 11 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 3566 3817 226 bellsouth.net, inc.
23456 3230 765 1744 >>UNKNOWN<<
17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
10620 1661 305 161 TVCABLE BOGOTA
7029 1627 1037 210 Windstream Communications Inc
4323 1622 1101 394 Time Warner Telecom
20115 1592 1541 632 Charter Communications

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 1985 1954 PT TELEKOMUNIKASI INDONESIA
1785 1825 1703 AppliedTheory Corporation
18566 1912 1675 Covad Communications
10620 1661 1500 TVCABLE BOGOTA
7545 1578 1495 TPG Internet Pty Ltd
23456 3230 1486 >>UNKNOWN<<
7029 1627 1417 Windstream Communications Inc
7552 1415 1408 Vietel Corporation
4755 1543 1375 Videsh Sanchar Nigam Ltd. Aut
22773 1452 1353 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<<
46.18.104.0/21 23456 >>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 /12:234
/13:463 /14:806 /15:1448 /16:12077 /17:6214 /18:10302
/19:20271 /20:27958 /21:27426 /22:36469 /23:35214 /24:194134
/25:78 /26:89 /27:120 /28:285 /29:102 /30:553
/31:72 /32:499

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

ASN No of nets Total ann. Description
6389 2203 3566 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1577 3230 >>UNKNOWN<<
10620 1556 1661 TVCABLE BOGOTA
7029 1309 1627 Windstream Communications Inc
30036 1291 1328 Mediacom Communications Corp
11492 1111 1157 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1825 AppliedTheory Corporation
22773 941 1452 Cox Communications, Inc.

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

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

1:365 2:50 4:19 5:1 6:3 8:349
12:1952 13:1 14:532 15:13 16:3 17:5
20:10 23:32 24:1674 27:943 31:518 32:149
33:3 34:2 36:4 38:738 40:107 41:2480
42:41 44:3 46:984 47:3 49:239 50:413
52:13 54:2 55:8 56:2 57:44 58:875
59:487 60:376 61:1175 62:1092 63:1965 64:4073
65:2303 66:3972 67:1974 68:1277 69:3276 70:828
71:377 72:1887 73:1 74:2481 75:340 76:346
77:871 78:669 79:469 80:1128 81:846 82:514
83:497 84:702 85:1095 86:419 87:867 88:350
89:1552 90:232 91:4083 92:525 93:1137 94:1345
95:799 96:425 97:272 98:940 99:37 100:1
101:203 103:279 106:71 107:43 108:82 109:1024
110:669 111:748 112:319 113:443 114:567 115:718
116:944 117:699 118:892 119:1194 120:336 121:700
122:1609 123:1011 124:1344 125:1403 128:249 129:184
130:166 131:581 132:119 133:21 134:216 135:52
136:206 137:134 138:293 139:129 140:493 141:288
142:392 143:411 144:491 145:61 146:466 147:229
148:688 149:250 150:153 151:189 152:444 153:179
154:6 155:393 156:201 157:355 158:143 159:458
160:323 161:206 162:335 163:173 164:513 165:401
166:538 167:433 168:737 169:146 170:848 171:84
172:1 173:1663 174:637 175:401 176:169 177:243
178:1007 180:1033 181:25 182:611 183:234 184:357
185:1 186:1418 187:686 188:940 189:865 190:5152
192:5944 193:5011 194:3545 195:3076 196:1242 197:148
198:3602 199:4118 200:5519 201:1638 202:8509 203:8525
204:4246 205:2347 206:2739 207:2840 208:4146 209:3546
210:2712 211:1466 212:2139 213:1775 214:770 215:76
216:4901 217:1595 218:553 219:347 220:1227 221:516
222:353 223:260

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 11 Sep, 2011

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

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

BGP routing table entries examined: 364485
Prefixes after maximum aggregation: 165392
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 183688
Total ASes present in the Internet Routing Table: 37158
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32057
Origin ASes announcing only one prefix: 15440
Transit ASes present in the Internet Routing Table: 5101
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 43
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 2565
Unregistered ASNs in the Routing Table: 776
Number of 32-bit ASNs allocated by the RIRs: 1712
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3219
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2491765504
Equivalent to 148 /8s, 133 /16s and 83 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 150392

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

Prefixes being announced by APNIC Region ASes: 88541
Total APNIC prefixes after maximum aggregation: 29342
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86000
Unique aggregates announced from the APNIC address blocks: 38141
APNIC Region origin ASes present in the Internet Routing Table: 4502
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 683
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: 625072384
Equivalent to 37 /8s, 65 /16s and 217 /24s
Percentage of available APNIC address space announced: 79.3

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

Prefixes being announced by ARIN Region ASes: 141848
Total ARIN prefixes after maximum aggregation: 72860
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114019
Unique aggregates announced from the ARIN address blocks: 47286
ARIN Region origin ASes present in the Internet Routing Table: 14562
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5622
ARIN Region transit ASes present in the Internet Routing Table: 1477
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804814592
Equivalent to 47 /8s, 248 /16s and 127 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 88252
Total RIPE prefixes after maximum aggregation: 49927
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81327
Unique aggregates announced from the RIPE address blocks: 53818
RIPE Region origin ASes present in the Internet Routing Table: 15935
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7952
RIPE Region transit ASes present in the Internet Routing Table: 2507
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 43
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 488671488
Equivalent to 29 /8s, 32 /16s and 137 /24s
Percentage of available RIPE address space announced: 78.7

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

Prefixes being announced by LACNIC Region ASes: 33884
Total LACNIC prefixes after maximum aggregation: 7648
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33362
Unique aggregates announced from the LACNIC address blocks: 17671
LACNIC Region origin ASes present in the Internet Routing Table: 1504
LACNIC Prefixes per ASN: 22.18
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 261
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: 88416512
Equivalent to 5 /8s, 69 /16s and 33 /24s
Percentage of available LACNIC address space announced: 58.6

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: 8050
Total AfriNIC prefixes after maximum aggregation: 2053
AfriNIC Deaggregation factor: 3.92
Prefixes being announced from the AfriNIC address blocks: 6181
Unique aggregates announced from the AfriNIC address blocks: 1990
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 12.88
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.3
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: 27230976
Equivalent to 1 /8s, 159 /16s and 131 /24s
Percentage of available AfriNIC address space announced: 40.6

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 1943 11039 648 Korea Telecom (KIX)
17974 1679 516 31 PT Telekomunikasi Indonesia
7545 1577 301 82 TPG Internet Pty Ltd
4755 1536 378 166 TATA Communications formerly
24560 1178 336 193 Bharti Airtel Ltd., Telemedia
9829 1140 989 28 National Internet Backbone
9583 1079 80 503 Sify Limited
7552 1000 1062 11 Vietel Corporation
17488 982 192 158 Hathway IP Over Cable Interne
4808 956 1996 271 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 3563 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
4323 1624 1101 396 tw telecom holdings, inc.
7029 1622 1033 209 Windstream Communications Inc
20115 1591 1541 632 Charter Communications
22773 1449 2905 98 Cox Communications Inc.
19262 1394 4724 399 Verizon Online LLC
7018 1346 7084 885 AT&T Services, Inc.
30036 1327 243 687 Mediacom Communications Corp

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
34984 544 107 178 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Broadband
20940 501 155 389 Akamai Technologies European
3292 469 2079 404 TDC Data Networks
12479 469 594 8 France Telecom Espana SA
8866 461 134 27 Bulgarian Telecommunication C
3320 428 8152 372 Deutsche Telekom AG
29049 424 31 55 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 1661 305 161 Types of queries are: POCs, o
28573 1299 1003 71 Types of queries are: POCs, o
8151 1265 2782 349 Uninet S.A. de C.V.
7303 1051 578 166 Telecom Argentina S.A.
14420 715 57 88 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 570 450 69 Axtel, S.A.B. de C.V.
27947 554 56 77 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia 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
24863 809 147 41 LINKdotNET AS number
8452 642 445 11 TEDATA
15475 510 74 8 Nile Online
36992 296 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 194 28 63 Vodacom Internet Company
24835 179 70 11 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 3563 3817 227 BellSouth.net Inc.
23456 3219 766 1738 32-bit ASN transition
4766 1943 11039 648 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
17974 1679 516 31 PT Telekomunikasi Indonesia
10620 1661 305 161 Types of queries are: POCs, o
4323 1624 1101 396 tw telecom holdings, inc.
7029 1622 1033 209 Windstream Communications Inc
20115 1591 1541 632 Charter Communications

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 1825 1703 PaeTec Communications, Inc.
18566 1910 1675 Covad Communications Co.
17974 1679 1648 PT Telekomunikasi Indonesia
10620 1661 1500 Types of queries are: POCs, o
7545 1577 1495 TPG Internet Pty Ltd
23456 3219 1481 32-bit ASN transition
7029 1622 1413 Windstream Communications Inc
4755 1536 1370 TATA Communications formerly
22773 1449 1351 Cox Communications Inc.
4766 1943 1295 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /8:20 /9:12 /10:27 /11:81 /12:235
/13:463 /14:797 /15:1410 /16:11920 /17:5935 /18:9956
/19:19793 /20:26729 /21:26841 /22:35722 /23:34251 /24:189783
/25:12 /26:20 /27:22 /28:156 /29:114 /30:59
/31:0 /32:127

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

ASN No of nets Total ann. Description
6389 2199 3563 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1566 3219 32-bit ASN transition
10620 1556 1661 Types of queries are: POCs, o
7029 1306 1622 Windstream Communications Inc
30036 1290 1327 Mediacom Communications Corp
11492 1111 1157 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1052 1825 PaeTec Communications, Inc.
22773 940 1449 Cox Communications Inc.

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

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

1:362 2:50 4:15 5:1 6:3 8:345
12:1950 13:1 14:520 15:13 16:3 17:5
20:10 23:32 24:1666 27:930 31:516 32:59
33:3 34:2 36:4 38:730 40:107 41:2256
42:41 44:3 46:975 47:3 49:233 50:413
52:13 54:2 55:7 56:2 57:34 58:820
59:483 60:374 61:1010 62:1082 63:1934 64:3996
65:2298 66:3913 67:1942 68:1094 69:3164 70:778
71:377 72:1856 74:2427 75:327 76:337 77:869
78:666 79:465 80:1125 81:844 82:507 83:490
84:686 85:1089 86:418 87:863 88:346 89:1538
90:232 91:4078 92:524 93:1131 94:1342 95:798
96:417 97:272 98:926 99:37 100:1 101:77
103:275 106:71 107:43 108:76 109:1013 110:630
111:741 112:311 113:421 114:553 115:685 116:902
117:661 118:849 119:1173 120:334 121:665 122:1598
123:1003 124:1284 125:1342 128:210 129:174 130:160
131:578 132:111 133:21 134:207 135:52 136:204
137:131 138:293 139:114 140:471 141:289 142:371
143:408 144:487 145:60 146:460 147:218 148:613
149:249 150:146 151:189 152:442 153:179 154:5
155:393 156:198 157:323 158:143 159:391 160:322
161:197 162:332 163:163 164:512 165:369 166:536
167:431 168:735 169:143 170:848 171:84 172:1
173:1645 174:631 175:390 176:168 177:243 178:1005
180:1015 181:25 182:594 183:230 184:353 185:1
186:1415 187:682 188:940 189:864 190:5128 192:5865
193:4997 194:3513 195:3046 196:1207 197:148 198:3529
199:4061 200:5443 201:1625 202:8213 203:8398 204:4168
205:2306 206:2588 207:2758 208:4010 209:3435 210:2611
211:1454 212:2102 213:1743 214:770 215:76 216:4819
217:1589 218:541 219:341 220:1185 221:499 222:303
223:256

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 11 Sep, 2011

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

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

BGP routing table entries examined: 370984
Prefixes after maximum aggregation: 167401
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 183822
Total ASes present in the Internet Routing Table: 38738
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 32132
Origin ASes announcing only one prefix: 15451
Transit ASes present in the Internet Routing Table: 5207
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1205
Unregistered ASNs in the Routing Table: 695
Number of 32-bit ASNs allocated by the RIRs: 1712
Number of 32-bit ASNs visible in the Routing Table: 1399
Prefixes from 32-bit ASNs in the Routing Table: 3220
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 2475190016
Equivalent to 147 /8s, 136 /16s and 103 /24s
Percentage of available address space announced: 66.8
Percentage of allocated address space announced: 66.8
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: 154438

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

Prefixes being announced by APNIC Region ASes: 93740
Total APNIC prefixes after maximum aggregation: 30656
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90282
Unique aggregates announced from the APNIC address blocks: 38104
APNIC Region origin ASes present in the Internet Routing Table: 4551
APNIC Prefixes per ASN: 19.84
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 708
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: 84
Number of APNIC addresses announced to Internet: 626078816
Equivalent to 37 /8s, 81 /16s and 52 /24s
Percentage of available APNIC address space announced: 79.4

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

Prefixes being announced by ARIN Region ASes: 143169
Total ARIN prefixes after maximum aggregation: 73410
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115015
Unique aggregates announced from the ARIN address blocks: 47307
ARIN Region origin ASes present in the Internet Routing Table: 14637
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1551
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804829568
Equivalent to 47 /8s, 248 /16s and 185 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 87892
Total RIPE prefixes after maximum aggregation: 49995
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80967
Unique aggregates announced from the RIPE address blocks: 53841
RIPE Region origin ASes present in the Internet Routing Table: 15959
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7956
RIPE Region transit ASes present in the Internet Routing Table: 2497
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: 995
Number of RIPE addresses announced to Internet: 488731136
Equivalent to 29 /8s, 33 /16s and 114 /24s
Percentage of available RIPE address space announced: 78.7

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

Prefixes being announced by LACNIC Region ASes: 34461
Total LACNIC prefixes after maximum aggregation: 7757
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33777
Unique aggregates announced from the LACNIC address blocks: 17687
LACNIC Region origin ASes present in the Internet Routing Table: 1522
LACNIC Prefixes per ASN: 22.19
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 275
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: 304
Number of LACNIC addresses announced to Internet: 88477824
Equivalent to 5 /8s, 70 /16s and 16 /24s
Percentage of available LACNIC address space announced: 58.6

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: 8338
Total AfriNIC prefixes after maximum aggregation: 2025
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6442
Unique aggregates announced from the AfriNIC address blocks: 2016
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.31
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.6
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: 27332608
Equivalent to 1 /8s, 161 /16s and 16 /24s
Percentage of available AfriNIC address space announced: 40.7

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 2508 11047 955 Korea Telecom (KIX)
17974 1966 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1581 301 83 TPG Internet Pty Ltd
4755 1550 635 170 TATA Communications formerly
7552 1415 1064 7 Vietel Corporation
24560 1178 336 193 Bharti Airtel Ltd., Telemedia
9829 1149 989 28 BSNL National Internet Backbo
9583 1079 80 503 Sify Limited
4808 1077 2093 308 CNCGROUP IP network: China169
17488 982 192 158 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 3564 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
4323 1624 1085 395 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1588 995 231 Windstream Communications Inc
22773 1451 2906 99 Cox Communications, Inc.
19262 1395 4724 399 Verizon Global Networks
7018 1335 7050 875 AT&T WorldNet Services
30036 1328 244 688 Mediacom Communications Corp

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 544 107 178 BILISIM TELEKOM
6830 526 1811 322 UPC Distribution Services
20940 500 154 388 Akamai Technologies European
3292 471 2079 405 TDC Tele Danmark
12479 469 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 406 352 13 Corbina telecom
8551 404 354 44 Bezeq International

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 1661 305 161 TVCABLE BOGOTA
8151 1405 2802 354 UniNet S.A. de C.V.
28573 1308 1003 71 NET Servicos de Comunicao S.A
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 580 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 565 55 82 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 516 85 91 Servicios Alestra S.A de C.V

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 812 147 43 LINKdotNET AS number
8452 642 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 193 28 62 Vodacom Internet Company
29571 190 17 11 Ci Telecom Autonomous system

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 3564 3817 226 bellsouth.net, inc.
23456 3220 764 1736 32-bit ASN transition
4766 2508 11047 955 Korea Telecom (KIX)
17974 1966 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1661 305 161 TVCABLE BOGOTA
4323 1624 1085 395 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1588 995 231 Windstream Communications Inc

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 1966 1935 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2508 1553 Korea Telecom (KIX)
10620 1661 1500 TVCABLE BOGOTA
7545 1581 1498 TPG Internet Pty Ltd
23456 3220 1484 32-bit ASN transition
7552 1415 1408 Vietel Corporation
4755 1550 1380 TATA Communications formerly
7029 1588 1357 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /8:19 /9:12 /10:27 /11:81 /12:234
/13:463 /14:798 /15:1414 /16:11951 /17:5959 /18:9993
/19:19725 /20:26839 /21:26963 /22:36150 /23:34697 /24:192372
/25:1098 /26:1280 /27:740 /28:160 /29:4 /30:0
/31:0 /32:5

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

ASN No of nets Total ann. Description
6389 2201 3564 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1569 3220 32-bit ASN transition
10620 1556 1661 TVCABLE BOGOTA
30036 1291 1328 Mediacom Communications Corp
7029 1288 1588 Windstream Communications Inc
11492 1111 1157 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 941 1451 Cox Communications, Inc.

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

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

1:371 2:50 4:15 5:1 6:3 8:348
12:1949 13:1 14:531 15:13 16:3 17:5
20:10 23:32 24:1669 27:943 31:516 32:64
33:3 34:2 36:4 38:735 40:107 41:2446
42:41 44:3 46:981 47:3 49:239 50:413
52:13 54:2 55:8 56:2 57:34 58:869
59:495 60:376 61:1172 62:1085 63:1942 64:4028
65:2301 66:3931 67:1943 68:1101 69:3168 70:782
71:375 72:1857 74:2429 75:328 76:336 77:870
78:667 79:456 80:1125 81:841 82:502 83:491
84:685 85:1091 86:412 87:862 88:345 89:1531
90:232 91:4074 92:524 93:1130 94:1340 95:797
96:422 97:272 98:926 99:37 100:1 101:203
103:278 106:71 107:42 108:76 109:1015 110:662
111:747 112:319 113:439 114:564 115:719 116:916
117:699 118:882 119:1199 120:336 121:691 122:1608
123:1007 124:1344 125:1400 128:248 129:181 130:166
131:576 132:119 133:21 134:215 135:52 136:206
137:134 138:293 139:116 140:492 141:289 142:389
143:411 144:493 145:61 146:466 147:215 148:635
149:250 150:153 151:189 152:444 153:179 154:6
155:393 156:197 157:354 158:139 159:458 160:328
161:207 162:335 163:173 164:513 165:371 166:536
167:432 168:745 169:145 170:847 171:84 172:1
173:1646 174:631 175:391 176:169 177:243 178:1006
180:1020 181:25 182:607 183:234 184:353 185:1
186:1417 187:687 188:940 189:868 190:5147 192:5913
193:5004 194:3516 195:3046 196:1236 197:137 198:3590
199:4100 200:5514 201:1630 202:8532 203:8516 204:4238
205:2323 206:2676 207:2825 208:4021 209:3461 210:2685
211:1461 212:2088 213:1762 214:769 215:76 216:4844
217:1593 218:550 219:345 220:1224 221:515 222:352
223:260

End of report
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Friday, September 9, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 10 Sep, 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: 374559
Prefixes after maximum aggregation: 168431
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178850
Total ASes present in the Internet Routing Table: 38734
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32219
Origin ASes announcing only one prefix: 15428
Transit ASes present in the Internet Routing Table: 5120
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 46
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 4447
Unregistered ASNs in the Routing Table: 706
Number of 32-bit ASNs allocated by the RIRs: 1711
Number of 32-bit ASNs visible in the Routing Table: 1395
Prefixes from 32-bit ASNs in the Routing Table: 3216
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 101
Number of addresses announced to Internet: 2307413906
Equivalent to 137 /8s, 136 /16s and 87 /24s
Percentage of available address space announced: 62.3
Percentage of allocated address space announced: 62.3
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: 155040

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

Prefixes being announced by APNIC Region ASes: 91483
Total APNIC prefixes after maximum aggregation: 29428
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88120
Unique aggregates announced from the APNIC address blocks: 36739
APNIC Region origin ASes present in the Internet Routing Table: 4544
APNIC Prefixes per ASN: 19.39
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 82
Number of APNIC addresses announced to Internet: 610049536
Equivalent to 36 /8s, 92 /16s and 158 /24s
Percentage of available APNIC address space announced: 77.4

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

Prefixes being announced by ARIN Region ASes: 146461
Total ARIN prefixes after maximum aggregation: 75433
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117955
Unique aggregates announced from the ARIN address blocks: 44870
ARIN Region origin ASes present in the Internet Routing Table: 14653
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5625
ARIN Region transit ASes present in the Internet Routing Table: 1500
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 667351708
Equivalent to 39 /8s, 198 /16s and 250 /24s
Percentage of available ARIN address space announced: 53.0

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

Prefixes being announced by RIPE Region ASes: 89918
Total RIPE prefixes after maximum aggregation: 50162
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82164
Unique aggregates announced from the RIPE address blocks: 52708
RIPE Region origin ASes present in the Internet Routing Table: 15959
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7938
RIPE Region transit ASes present in the Internet Routing Table: 2461
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 46
Number of RIPE region 32-bit ASNs visible in the Routing Table: 993
Number of RIPE addresses announced to Internet: 473915340
Equivalent to 28 /8s, 63 /16s and 95 /24s
Percentage of available RIPE address space announced: 76.3

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

Prefixes being announced by LACNIC Region ASes: 34898
Total LACNIC prefixes after maximum aggregation: 7772
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34120
Unique aggregates announced from the LACNIC address blocks: 17530
LACNIC Region origin ASes present in the Internet Routing Table: 1518
LACNIC Prefixes per ASN: 22.48
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 271
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: 304
Number of LACNIC addresses announced to Internet: 88393224
Equivalent to 5 /8s, 68 /16s and 198 /24s
Percentage of available LACNIC address space announced: 58.5

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: 8392
Total AfriNIC prefixes after maximum aggregation: 2069
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6492
Unique aggregates announced from the AfriNIC address blocks: 2011
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.0
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: 27302912
Equivalent to 1 /8s, 160 /16s and 156 /24s
Percentage of available AfriNIC address space announced: 40.7

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
17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
7545 1577 301 82 TPG Internet Pty Ltd
4755 1547 375 167 Videsh Sanchar Nigam Ltd. Aut
7552 1300 1064 7 Vietel Corporation
24560 1177 336 193 Bharti Airtel Ltd.
9829 1152 989 28 BSNL National Internet Backbo
9583 1079 80 503 Sify Limited
17488 970 190 167 Hathway IP Over Cable Interne
18101 950 118 139 Reliance Infocom Ltd Internet

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 3567 3817 227 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
4323 1624 1101 394 Time Warner Telecom
20115 1590 1540 634 Charter Communications
7029 1520 1037 210 Windstream Communications Inc
22773 1452 2907 99 Cox Communications, Inc.
19262 1394 4724 399 Verizon Global Networks
7018 1342 7068 882 AT&T WorldNet Services
30036 1327 244 687 Mediacom Communications Corp

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 1067 824 198 KPNQwest Backbone AS
34984 544 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 527 1811 322 UPC Distribution Services
3292 523 2080 406 TDC Tele Danmark
20940 506 156 393 Akamai Technologies European
12479 469 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 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 1661 305 161 TVCABLE BOGOTA
8151 1447 2783 353 Uninet S.A. de C.V.
28573 1293 1003 71 Types of queries are: POCs, o
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 593 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 578 56 77 Telconet S.A
10481 548 430 20 Prima S.A.
3816 538 232 99 COLOMBIA TELECOMUNICACIONES S

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 811 147 42 LINKdotNET AS number
8452 596 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 194 28 63 YEBO-AS
29571 191 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 3567 3817 227 bellsouth.net, inc.
23456 3216 763 1740 >>UNKNOWN<<
17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1825 680 122 AppliedTheory Corporation
10620 1661 305 161 TVCABLE BOGOTA
4323 1624 1101 394 Time Warner Telecom
20115 1590 1540 634 Charter Communications
7545 1577 301 82 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 1985 1954 PT TELEKOMUNIKASI INDONESIA
1785 1825 1703 AppliedTheory Corporation
18566 1912 1675 Covad Communications
10620 1661 1500 TVCABLE BOGOTA
7545 1577 1495 TPG Internet Pty Ltd
23456 3216 1476 >>UNKNOWN<<
4755 1547 1380 Videsh Sanchar Nigam Ltd. Aut
22773 1452 1353 Cox Communications, Inc.
7029 1520 1310 Windstream Communications Inc
4766 1943 1295 Korea Telecom (KIX)

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

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 /12:234
/13:463 /14:806 /15:1448 /16:12083 /17:6214 /18:10306
/19:20271 /20:27835 /21:27382 /22:36432 /23:35235 /24:193904
/25:78 /26:89 /27:121 /28:289 /29:107 /30:551
/31:72 /32:499

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

ASN No of nets Total ann. Description
6389 2203 3567 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1558 3216 >>UNKNOWN<<
10620 1556 1661 TVCABLE BOGOTA
30036 1290 1327 Mediacom Communications Corp
7029 1232 1520 Windstream Communications Inc
11492 1110 1156 Cable One
1785 1052 1825 AppliedTheory Corporation
7011 1051 1176 Citizens Utilities
22773 941 1452 Cox Communications, Inc.

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

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

1:368 2:50 4:19 5:1 6:3 8:350
12:1952 13:1 14:525 15:13 16:3 17:5
20:10 23:31 24:1674 27:939 31:518 32:149
33:3 34:2 36:4 38:740 40:107 41:2493
42:41 44:3 46:983 47:3 49:236 50:412
52:13 54:2 55:6 56:2 57:44 58:873
59:495 60:376 61:1175 62:1093 63:1963 64:4072
65:2308 66:3974 67:1965 68:1292 69:3276 70:829
71:377 72:1887 73:1 74:2478 75:337 76:347
77:871 78:669 79:468 80:1128 81:846 82:516
83:497 84:691 85:1095 86:419 87:867 88:350
89:1553 90:232 91:4083 92:522 93:1136 94:1344
95:801 96:427 97:272 98:927 99:37 100:1
101:202 103:272 106:71 107:43 108:82 109:1024
110:673 111:744 112:319 113:443 114:567 115:719
116:939 117:697 118:878 119:1197 120:334 121:708
122:1607 123:1012 124:1348 125:1401 128:249 129:184
130:166 131:581 132:119 133:21 134:216 135:52
136:212 137:134 138:293 139:122 140:493 141:289
142:392 143:416 144:494 145:61 146:466 147:227
148:688 149:250 150:153 151:189 152:444 153:179
154:6 155:393 156:201 157:355 158:143 159:456
160:322 161:207 162:335 163:169 164:513 165:401
166:538 167:434 168:746 169:147 170:847 171:84
172:1 173:1660 174:637 175:402 176:167 177:246
178:1009 180:1027 181:26 182:613 183:233 184:356
185:1 186:1419 187:674 188:940 189:865 190:5154
192:5951 193:5012 194:3552 195:3075 196:1241 197:148
198:3600 199:4122 200:5515 201:1488 202:8492 203:8504
204:4246 205:2347 206:2740 207:2838 208:4143 209:3531
210:2687 211:1470 212:2139 213:1778 214:772 215:76
216:4906 217:1604 218:553 219:346 220:1228 221:516
222:353 223:259

End of report
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