[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 18 18:08:20 UTC 2008
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 19 Jul, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 263570
Prefixes after maximum aggregation: 129383
Deaggregation factor: 2.04
Unique aggregates announced to Internet: 128648
Total ASes present in the Internet Routing Table: 28709
Prefixes per ASN: 9.18
Origin-only ASes present in the Internet Routing Table: 25036
Origin ASes announcing only one prefix: 12109
Transit ASes present in the Internet Routing Table: 3673
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 19
Max AS path prepend of ASN ( 3816) 15
Prefixes from unregistered ASNs in the Routing Table: 585
Unregistered ASNs in the Routing Table: 215
Number of 32-bit ASNs allocated by the RIRs: 50
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 778
Number of addresses announced to Internet: 1894510496
Equivalent to 112 /8s, 235 /16s and 239 /24s
Percentage of available address space announced: 51.1
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.7
Total number of prefixes smaller than registry allocations: 128645
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 60485
Total APNIC prefixes after maximum aggregation: 22626
APNIC Deaggregation factor: 2.67
Prefixes being announced from the APNIC address blocks: 57467
Unique aggregates announced from the APNIC address blocks: 25516
APNIC Region origin ASes present in the Internet Routing Table: 3307
APNIC Prefixes per ASN: 17.38
APNIC Region origin ASes announcing only one prefix: 882
APNIC Region transit ASes present in the Internet Routing Table: 518
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 368124960
Equivalent to 21 /8s, 241 /16s and 36 /24s
Percentage of available APNIC address space announced: 78.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 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, 202/8, 203/8,
210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 121119
Total ARIN prefixes after maximum aggregation: 65323
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 90675
Unique aggregates announced from the ARIN address blocks: 35130
ARIN Region origin ASes present in the Internet Routing Table: 12293
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4747
ARIN Region transit ASes present in the Internet Routing Table: 1155
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 352742688
Equivalent to 21 /8s, 6 /16s and 109 /24s
Percentage of available ARIN address space announced: 72.5
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
ARIN Address Blocks 24/8, 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, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 56703
Total RIPE prefixes after maximum aggregation: 34477
RIPE Deaggregation factor: 1.64
Prefixes being announced from the RIPE address blocks: 51898
Unique aggregates announced from the RIPE address blocks: 34879
RIPE Region origin ASes present in the Internet Routing Table: 11614
RIPE Prefixes per ASN: 4.47
RIPE Region origin ASes announcing only one prefix: 6089
RIPE Region transit ASes present in the Internet Routing Table: 1740
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 366805568
Equivalent to 21 /8s, 221 /16s and 2 /24s
Percentage of available RIPE address space announced: 84.1
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, 47104-48127
RIPE Address Blocks 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, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 20673
Total LACNIC prefixes after maximum aggregation: 5279
LACNIC Deaggregation factor: 3.92
Prefixes being announced from the LACNIC address blocks: 18896
Unique aggregates announced from the LACNIC address blocks: 10693
LACNIC Region origin ASes present in the Internet Routing Table: 966
LACNIC Prefixes per ASN: 19.56
LACNIC Region origin ASes announcing only one prefix: 316
LACNIC Region transit ASes present in the Internet Routing Table: 162
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 53626880
Equivalent to 3 /8s, 50 /16s and 72 /24s
Percentage of available LACNIC address space announced: 53.3
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 4008
Total AfriNIC prefixes after maximum aggregation: 1190
AfriNIC Deaggregation factor: 3.37
Prefixes being announced from the AfriNIC address blocks: 4300
Unique aggregates announced from the AfriNIC address blocks: 1895
AfriNIC Region origin ASes present in the Internet Routing Table: 241
AfriNIC Prefixes per ASN: 17.84
AfriNIC Region origin ASes announcing only one prefix: 75
AfriNIC Region transit ASes present in the Internet Routing Table: 47
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12311296
Equivalent to 0 /8s, 187 /16s and 219 /24s
Percentage of available AfriNIC address space announced: 36.7
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4755 1671 342 176 Videsh Sanchar Nigam Ltd. Aut
17488 1219 84 96 Hathway IP Over Cable Interne
9583 1170 89 481 Sify Limited
4766 852 6390 347 Korea Telecom (KIX)
23577 829 35 703 Korea Telecom (ATM-MPLS)
4134 824 13539 334 CHINANET-BACKBONE
9498 711 547 58 BHARTI BT INTERNET LTD.
4780 707 351 63 Digital United Inc.
18101 690 167 32 Reliance Infocom Ltd Internet
4808 617 1111 137 CNCGROUP IP network: China169
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
209 3008 3859 625 Qwest
6389 2662 3260 195 bellsouth.net, inc.
6298 1606 233 782 Cox Communicatons
4323 1482 1061 379 Time Warner Telecom
2386 1477 646 873 AT&T Data Communications Serv
7018 1415 6247 988 AT&T WorldNet Services
11492 1210 149 32 Cable One
1785 1087 510 104 AppliedTheory Corporation
18566 1045 296 10 Covad Communications
20115 1041 1059 558 Charter Communications
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 414 1792 372 TDC Tele Danmark
3301 332 1460 303 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8452 319 188 11 TEDATA
8866 317 77 21 Bulgarian Telecommunication C
5462 296 666 27 Telewest Broadband
8551 287 269 38 Bezeq International
3215 286 2758 90 France Telecom Transpac
680 274 2047 264 DFN-IP service G-WiN
6746 269 126 244 Dynamic Network Technologies,
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1384 2590 225 UniNet S.A. de C.V.
11830 612 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
7303 471 232 63 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 414 85 48 ENTEL CHILE S.A.
11172 408 118 71 Servicios Alestra S.A de C.V
10620 406 106 64 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
20299 335 23 98 NEWCOM AMERICAS
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 476 61 24 LINKdotNET AS number
20858 398 34 3 EgyNet
3741 270 853 225 The Internet Solution
2018 209 204 102 Tertiary Education Network
6713 143 135 11 Itissalat Al-MAGHRIB
33783 135 10 12 EEPAD TISP TELECOM & INTERNET
5713 130 556 75 Telkom SA Ltd
5536 120 8 17 Internet Egypt Network
29571 107 13 8 Ci Telecom Autonomous system
33776 99 6 7 Starcomms Nigeria Limited
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
209 3008 3859 625 Qwest
6389 2662 3260 195 bellsouth.net, inc.
4755 1671 342 176 Videsh Sanchar Nigam Ltd. Aut
6298 1606 233 782 Cox Communicatons
4323 1482 1061 379 Time Warner Telecom
2386 1477 646 873 AT&T Data Communications Serv
7018 1415 6247 988 AT&T WorldNet Services
8151 1384 2590 225 UniNet S.A. de C.V.
17488 1219 84 96 Hathway IP Over Cable Interne
11492 1210 149 32 Cable One
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 2662 2467 bellsouth.net, inc.
4755 1671 1495 Videsh Sanchar Nigam Ltd. Aut
11492 1210 1178 Cable One
8151 1384 1159 UniNet S.A. de C.V.
17488 1219 1123 Hathway IP Over Cable Interne
4323 1482 1103 Time Warner Telecom
18566 1045 1035 Covad Communications
1785 1087 983 AppliedTheory Corporation
22773 971 907 Cox Communications, Inc.
6478 1003 835 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies,
22492 UNALLOCATED 12.2.46.0/24 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
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.48.244.0/23 7843 Adelphia Corp.
24.51.159.0/24 7843 Adelphia Corp.
24.54.23.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.75.192.0/18 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
Complete listing at http://thyme.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 /9:9 /10:16 /11:45 /12:146
/13:287 /14:517 /15:1041 /16:10011 /17:4336 /18:7517
/19:15887 /20:18525 /21:18193 /22:22730 /23:23637 /24:137913
/25:837 /26:1030 /27:778 /28:82 /29:7 /30:1
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
209 1760 3008 Qwest
6389 1664 2662 bellsouth.net, inc.
6298 1582 1606 Cox Communicatons
11492 1194 1210 Cable One
2386 1174 1477 AT&T Data Communications Serv
17488 1033 1219 Hathway IP Over Cable Interne
18566 1026 1045 Covad Communications
9583 1025 1170 Sify Limited
4755 1023 1671 Videsh Sanchar Nigam Ltd. Aut
6478 994 1003 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:125 12:2091 13:2 15:22 16:3
17:5 18:13 20:35 24:1092 25:1 32:61
38:450 40:92 41:657 43:1 44:2 47:12
52:3 55:3 56:3 57:25 58:524 59:507
60:452 61:1009 62:1206 63:2031 64:3288 65:2386
66:3509 67:1229 68:735 69:2266 70:799 71:118
72:1961 73:5 74:1064 75:155 76:315 77:749
78:748 79:203 80:934 81:840 82:592 83:377
84:559 85:960 86:413 87:687 88:338 89:1316
90:15 91:1386 92:224 93:691 94:56 96:40
97:31 98:253 99:2 112:1 113:1 114:90
115:3 116:843 117:320 118:190 119:440 120:59
121:562 122:796 123:363 124:890 125:1168 128:361
129:199 130:132 131:410 132:66 133:9 134:186
135:33 136:223 137:91 138:147 139:94 140:493
141:98 142:406 143:325 144:384 145:51 146:366
147:157 148:517 149:198 150:129 151:180 152:144
153:136 154:10 155:251 156:174 157:291 158:187
159:239 160:279 161:118 162:210 163:154 164:525
165:452 166:318 167:330 168:621 169:138 170:423
171:32 172:10 188:1 189:287 190:2206 192:5798
193:4095 194:3231 195:2525 196:1042 198:3734 199:3270
200:5566 201:1462 202:7639 203:8045 204:3987 205:2132
206:2383 207:2762 208:3422 209:3510 210:2592 211:1074
212:1411 213:1610 214:164 215:49 216:4426 217:1195
218:343 219:421 220:1059 221:465 222:306
End of report
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