[NANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 25 18:06:57 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 26 Apr, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 254062
Prefixes after maximum aggregation: 126996
Deaggregation factor: 2.00
Unique aggregates announced to Internet: 123674
Total ASes present in the Internet Routing Table: 28040
Prefixes per ASN: 9.06
Origin-only ASes present in the Internet Routing Table: 24422
Origin ASes announcing only one prefix: 11383
Transit ASes present in the Internet Routing Table: 3618
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 19
Max AS path prepend of ASN (39375) 13
Prefixes from unregistered ASNs in the Routing Table: 25254
Unregistered ASNs in the Routing Table: 1883
Number of 32-bit ASNs allocated by the RIRs: 46
Prefixes from 32-bit ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 794
Number of addresses announced to Internet: 1864785952
Equivalent to 111 /8s, 38 /16s and 96 /24s
Percentage of available address space announced: 50.3
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.6
Total number of prefixes smaller than registry allocations: 121945
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42902
Total APNIC prefixes after maximum aggregation: 13600
APNIC Deaggregation factor: 3.15
Prefixes being announced from the APNIC address blocks: 55266
Unique aggregates announced from the APNIC address blocks: 23976
APNIC Region origin ASes present in the Internet Routing Table: 1927
APNIC Prefixes per ASN: 28.68
APNIC Region origin ASes announcing only one prefix: 550
APNIC Region transit ASes present in the Internet Routing Table: 353
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 346601824
Equivalent to 20 /8s, 168 /16s and 185 /24s
Percentage of available APNIC address space announced: 79.5
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, 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: 107608
Total ARIN prefixes after maximum aggregation: 59199
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 86454
Unique aggregates announced from the ARIN address blocks: 34200
ARIN Region origin ASes present in the Internet Routing Table: 11763
ARIN Prefixes per ASN: 7.35
ARIN Region origin ASes announcing only one prefix: 4592
ARIN Region transit ASes present in the Internet Routing Table: 1045
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 358940416
Equivalent to 21 /8s, 100 /16s and 255 /24s
Percentage of available ARIN address space announced: 73.8
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
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: 54765
Total RIPE prefixes after maximum aggregation: 33522
RIPE Deaggregation factor: 1.63
Prefixes being announced from the RIPE address blocks: 49997
Unique aggregates announced from the RIPE address blocks: 33450
RIPE Region origin ASes present in the Internet Routing Table: 11258
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5885
RIPE Region transit ASes present in the Internet Routing Table: 1723
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 355108864
Equivalent to 21 /8s, 42 /16s and 136 /24s
Percentage of available RIPE address space announced: 81.4
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: 19746
Total LACNIC prefixes after maximum aggregation: 4938
LACNIC Deaggregation factor: 4.00
Prefixes being announced from the LACNIC address blocks: 18144
Unique aggregates announced from the LACNIC address blocks: 9833
LACNIC Region origin ASes present in the Internet Routing Table: 894
LACNIC Prefixes per ASN: 20.30
LACNIC Region origin ASes announcing only one prefix: 277
LACNIC Region transit ASes present in the Internet Routing Table: 155
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 50827008
Equivalent to 3 /8s, 7 /16s and 143 /24s
Percentage of available LACNIC address space announced: 50.5
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: 3786
Total AfriNIC prefixes after maximum aggregation: 1198
AfriNIC Deaggregation factor: 3.16
Prefixes being announced from the AfriNIC address blocks: 4141
Unique aggregates announced from the AfriNIC address blocks: 1840
AfriNIC Region origin ASes present in the Internet Routing Table: 241
AfriNIC Prefixes per ASN: 17.18
AfriNIC Region origin ASes announcing only one prefix: 79
AfriNIC Region transit ASes present in the Internet Routing Table: 46
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 11360256
Equivalent to 0 /8s, 173 /16s and 88 /24s
Percentage of available AfriNIC address space announced: 33.9
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 1634 387 89 Videsh Sanchar Nigam Ltd. Aut
9498 1162 550 61 BHARTI BT INTERNET LTD.
9583 1161 129 195 Sify Limited
17488 1059 70 77 Hathway IP Over Cable Interne
4134 856 12647 320 CHINANET-BACKBONE
4766 849 6006 345 Korea Telecom (KIX)
18101 680 149 54 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
1221 545 1919 419 Telstra Pty Ltd
4808 519 837 132 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
4323 1423 1029 375 Time Warner Telecom
7018 1407 5977 1003 AT&T WorldNet Services
2386 1398 642 864 AT&T Data Communications Serv
11492 1214 146 37 Cable One
7011 1097 319 624 Citizens Utilities
18566 1043 296 10 Covad Communications
1785 1011 511 106 AppliedTheory Corporation
6197 988 598 508 BellSouth Network Solutions,
174 969 6835 802 Cogent Communications
22773 934 2394 62 Cox Communications, Inc.
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 408 1787 368 TDC Tele Danmark
9198 381 74 9 Kazakhtelecom Data Network Ad
8452 356 188 7 TEDATA
3301 338 1459 307 TeliaNet Sweden
3320 323 7044 266 Deutsche Telekom AG
8866 297 78 24 Bulgarian Telecommunication C
5462 292 666 26 Telewest Broadband
8551 282 269 37 Bezeq International
3215 278 2679 89 France Telecom Transpac
6746 267 128 244 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 1189 2432 222 UniNet S.A. de C.V.
11830 573 299 9 Instituto Costarricense de El
22047 562 270 14 VTR PUNTO NET S.A.
7303 455 222 60 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 414 85 46 ENTEL CHILE S.A.
11172 414 117 69 Servicios Alestra S.A de C.V
10620 386 98 77 TVCABLE BOGOTA
14117 384 25 15 Telefonica del Sur S.A.
20299 308 36 31 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 464 61 27 LINKdotNET AS number
3741 289 853 223 The Internet Solution
20858 217 34 3 EgyNet
2018 178 190 86 Tertiary Education Network
5713 150 558 120 Telkom SA Ltd
6713 143 135 11 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 116 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
6389 2768 3020 115 bellsouth.net, inc.
23577 1638 34 700 Korea Telecom (ATM-MPLS)
4755 1634 387 89 Videsh Sanchar Nigam Ltd. Aut
4323 1423 1029 375 Time Warner Telecom
7018 1407 5977 1003 AT&T WorldNet Services
2386 1398 642 864 AT&T Data Communications Serv
11492 1214 146 37 Cable One
8151 1189 2432 222 UniNet S.A. de C.V.
9498 1162 550 61 BHARTI BT INTERNET LTD.
9583 1161 129 195 Sify Limited
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1634 1545 Videsh Sanchar Nigam Ltd. Aut
11492 1214 1177 Cable One
9498 1162 1101 BHARTI BT INTERNET LTD.
4323 1423 1048 Time Warner Telecom
18566 1043 1033 Covad Communications
17488 1059 982 Hathway IP Over Cable Interne
8151 1189 967 UniNet S.A. de C.V.
9583 1161 966 Sify Limited
17676 1016 951 Softbank BB Corp.
23577 1638 938 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo!
12180 UNALLOCATED 4.79.248.0/24 1239 Sprint
12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing
12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing
14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo!
16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies,
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
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
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.51.159.0/24 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
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
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 /11:42 /12:140
/13:280 /14:506 /15:999 /16:9868 /17:4359 /18:7294
/19:15348 /20:17778 /21:17144 /22:21534 /23:22624 /24:133802
/25:772 /26:919 /27:495 /28:96 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1200 1214 Cable One
2386 1096 1398 AT&T Data Communications Serv
18566 1024 1043 Covad Communications
9583 999 1161 Sify Limited
7011 980 1097 Citizens Utilities
4755 972 1634 Videsh Sanchar Nigam Ltd. Aut
6478 924 925 AT&T Worldnet Services
17488 871 1059 Hathway IP Over Cable Interne
6389 863 2768 bellsouth.net, inc.
9498 835 1162 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:106 12:2015 13:1 15:20 16:3
17:6 18:13 20:35 24:1062 25:1 32:61
33:4 38:415 40:94 41:657 44:2 47:8
52:3 55:3 56:3 57:22 58:512 59:455
60:440 61:982 62:1085 63:1959 64:3379 65:2401
66:3624 67:1144 68:672 69:2156 70:602 71:126
72:1677 73:6 74:952 75:226 76:289 77:646
78:609 79:146 80:898 81:853 82:605 83:373
84:554 85:1004 86:405 87:645 88:344 89:1273
90:11 91:1205 92:285 93:329 96:25 97:14
98:142 99:3 116:620 117:303 118:125 119:403
120:13 121:526 122:744 123:316 124:839 125:1115
128:320 129:198 130:128 131:401 132:65 133:9
134:179 135:32 136:222 137:113 138:150 139:60
140:490 141:96 142:437 143:284 144:346 145:50
146:360 147:142 148:502 149:180 150:128 151:175
152:142 153:127 154:10 155:265 156:208 157:263
158:168 159:224 160:254 161:111 162:210 163:196
164:577 165:444 166:298 167:316 168:611 169:127
170:427 171:28 172:2 189:164 190:1808 192:5770
193:4099 194:3260 195:2416 196:1061 198:3746 199:3235
200:5622 201:1406 202:7558 203:7804 204:4003 205:2089
206:2391 207:2754 208:3271 209:3469 210:2537 211:1046
212:1362 213:1647 214:447 215:50 216:4325 217:1220
218:351 219:407 220:1076 221:424 222:306
End of report
_______________________________________________
NANOG mailing list
NANOG at nanog.org
http://mailman.nanog.org/mailman/listinfo/nanog
More information about the NANOG
mailing list