Routing Table Report 00:00 GMT Sat 30 Oct, 2010
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: 338215
Prefixes after maximum aggregation: 152930
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 165071
Total ASes present in the Internet Routing Table: 35130
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 30275
Origin ASes announcing only one prefix: 14739
Transit ASes present in the Internet Routing Table: 4855
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 25
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 355
Unregistered ASNs in the Routing Table: 143
Number of 32-bit ASNs allocated by the RIRs: 855
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 66
Prefixes being announced from unallocated address space: 196
Number of addresses announced to Internet: 2327061175
Equivalent to 138 /8s, 180 /16s and 34 /24s
Percentage of available address space announced: 62.8
Percentage of allocated address space announced: 66.4
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.7
Total number of prefixes smaller than registry allocations: 138542
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 80936
Total APNIC prefixes after maximum aggregation: 27279
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 77933
Unique aggregates announced from the APNIC address blocks: 34711
APNIC Region origin ASes present in the Internet Routing Table: 4205
APNIC Prefixes per ASN: 18.53
APNIC Region origin ASes announcing only one prefix: 1188
APNIC Region transit ASes present in the Internet Routing Table: 667
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 560679362
Equivalent to 33 /8s, 107 /16s and 73 /24s
Percentage of available APNIC address space announced: 76.0
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 138555
Total ARIN prefixes after maximum aggregation: 71404
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 109661
Unique aggregates announced from the ARIN address blocks: 43590
ARIN Region origin ASes present in the Internet Routing Table: 13993
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5339
ARIN Region transit ASes present in the Internet Routing Table: 1453
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 738473993
Equivalent to 44 /8s, 4 /16s and 56 /24s
Percentage of available ARIN address space announced: 62.9
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, 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, 54/8,
55/8, 56/8, 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, 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: 80597
Total RIPE prefixes after maximum aggregation: 44997
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 73364
Unique aggregates announced from the RIPE address blocks: 46420
RIPE Region origin ASes present in the Internet Routing Table: 14961
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7653
RIPE Region transit ASes present in the Internet Routing Table: 2339
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 443190613
Equivalent to 26 /8s, 106 /16s and 141 /24s
Percentage of available RIPE address space announced: 77.7
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30293
Total LACNIC prefixes after maximum aggregation: 7236
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 28986
Unique aggregates announced from the LACNIC address blocks: 15368
LACNIC Region origin ASes present in the Internet Routing Table: 1380
LACNIC Prefixes per ASN: 21.00
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 76786440
Equivalent to 4 /8s, 147 /16s and 171 /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, 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: 7593
Total AfriNIC prefixes after maximum aggregation: 1892
AfriNIC Deaggregation factor: 4.01
Prefixes being announced from the AfriNIC address blocks: 5893
Unique aggregates announced from the AfriNIC address blocks: 1719
AfriNIC Region origin ASes present in the Internet Routing Table: 414
AfriNIC Prefixes per ASN: 14.23
AfriNIC Region origin ASes announcing only one prefix: 127
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21459712
Equivalent to 1 /8s, 71 /16s and 115 /24s
Percentage of available AfriNIC address space announced: 64.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1722 9453 509 Korea Telecom (KIX)
7545 1424 299 78 TPG Internet Pty Ltd
4755 1374 378 156 Videsh Sanchar Nigam Ltd. Aut
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1278 304 83 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd.
9583 1030 76 491 Sify Limited
4808 910 1663 261 CNCGROUP IP network: China169
18101 894 116 133 Reliance Infocom Ltd Internet
9829 826 694 27 BSNL National Internet Backbo
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 3760 3666 279 bellsouth.net, inc.
4323 2620 1120 395 Time Warner Telecom
1785 1795 698 130 AppliedTheory Corporation
19262 1777 4833 279 Verizon Global Networks
20115 1551 1531 643 Charter Communications
7018 1424 9811 914 AT&T WorldNet Services
6478 1398 280 76 AT&T Worldnet Services
2386 1316 556 931 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1226 2858 61 Cox Communications, Inc.
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
286 866 711 140 KPNQwest Backbone AS
9116 543 328 34 Goldenlines main autonomous s
3292 496 2028 391 TDC Tele Danmark
8866 427 133 25 Bulgarian Telecommunication C
8551 405 356 39 Bezeq International
702 403 1868 317 UUNET - Commercial IP service
3301 381 1696 337 TeliaNet Sweden
34984 381 91 188 Tellcom Iletisim Hizmetleri
3320 376 7332 329 Deutsche Telekom AG
30890 375 80 206 Evolva Telecom
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
8151 1335 2579 371 Uninet S.A. de C.V.
10620 1330 248 155 TVCABLE BOGOTA
28573 1206 928 84 Types of queries are: POCs, o
7303 830 441 107 Telecom Argentina Stet-France
6503 795 225 258 AVANTEL, S.A.
22047 564 310 15 Types of queries are: POCs, o
14420 559 44 80 Types of queries are: POCs, o
3816 485 210 96 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 Telefonica del Sur 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 1112 445 10 TEDATA
24863 744 147 39 LINKdotNET AS number
36992 643 278 160 Etisalat MISR
3741 267 893 229 The Internet Solution
24835 209 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 TENET-1
33776 196 12 14 Starcomms Nigeria Limited
16637 155 440 90 Johnnic e-Ventures
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 3760 3666 279 bellsouth.net, inc.
4323 2620 1120 395 Time Warner Telecom
1785 1795 698 130 AppliedTheory Corporation
19262 1777 4833 279 Verizon Global Networks
4766 1722 9453 509 Korea Telecom (KIX)
20115 1551 1531 643 Charter Communications
7018 1424 9811 914 AT&T WorldNet Services
7545 1424 299 78 TPG Internet Pty Ltd
6478 1398 280 76 AT&T Worldnet Services
4755 1374 378 156 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2620 2225 Time Warner Telecom
1785 1795 1665 AppliedTheory Corporation
19262 1777 1498 Verizon Global Networks
7545 1424 1346 TPG Internet Pty Ltd
6478 1398 1322 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1374 1218 Videsh Sanchar Nigam Ltd. Aut
4766 1722 1213 Korea Telecom (KIX)
17974 1278 1195 PT TELEKOMUNIKASI INDONESIA
10620 1330 1175 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 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
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 KPNQwest Backbone AS
10.29.245.30/32 286 KPNQwest Backbone AS
10.29.245.50/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
36.0.0.0/8 237 Merit Network
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 237 Merit Network
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 /8:22 /9:10 /10:25 /11:69 /12:206
/13:420 /14:745 /15:1347 /16:11389 /17:5635 /18:9507
/19:18914 /20:24280 /21:24125 /22:31717 /23:30985 /24:175932
/25:372 /26:410 /27:212 /28:376 /29:288 /30:641
/31:14 /32:574
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2325 3760 bellsouth.net, inc.
4323 1406 2620 Time Warner Telecom
6478 1360 1398 AT&T Worldnet Services
10620 1222 1330 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1074 1795 AppliedTheory Corporation
18566 1070 1089 Covad Communications
7011 1059 1160 Citizens Utilities
8452 1008 1112 TEDATA
19262 902 1777 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:92 2:24 4:17 5:1 8:315 12:1998
13:8 14:54 15:18 16:3 17:8 20:9
24:1417 27:394 31:1 32:146 33:11 38:697
40:101 41:2624 44:3 46:199 47:10 49:4
50:3 52:12 55:6 56:2 57:40 58:835
59:503 60:480 61:1121 62:1028 63:1973 64:3758
65:2347 66:4091 67:1837 68:1133 69:2893 70:753
71:378 72:1940 73:2 74:2337 75:296 76:325
77:866 78:684 79:452 80:1072 81:802 82:539
83:463 84:704 85:1050 86:485 87:728 88:328
89:1587 90:109 91:3164 92:431 93:1000 94:1138
95:705 96:396 97:222 98:642 99:32 101:3
108:64 109:746 110:426 111:619 112:308 113:306
114:478 115:614 116:1134 117:662 118:556 119:994
120:162 121:716 122:1605 123:950 124:1246 125:1271
128:230 129:154 130:168 131:564 132:274 133:20
134:209 135:45 136:210 137:143 138:280 139:128
140:485 141:198 142:348 143:360 144:499 145:56
146:428 147:175 148:619 149:308 150:146 151:231
152:293 153:175 154:3 155:362 156:165 157:341
158:112 159:361 160:312 161:199 162:274 163:164
164:426 165:349 166:470 167:426 168:682 169:155
170:719 171:62 172:2 173:1077 174:486 175:240
176:1 178:563 180:688 182:259 183:238 184:156
186:751 187:562 188:858 189:807 190:4188 192:5806
193:4790 194:3506 195:2989 196:1204 198:3532 199:3635
200:5417 201:1587 202:8330 203:8328 204:4019 205:2327
206:2586 207:3015 208:3896 209:3455 210:2570 211:1298
212:1874 213:1775 214:676 215:66 216:4771 217:1593
218:529 219:402 220:1189 221:430 222:367 223:60
End of report