[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat May 17 04:07:26 EST 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 17 May, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 255996
Prefixes after maximum aggregation: 127048
Deaggregation factor: 2.01
Unique aggregates announced to Internet: 124142
Total ASes present in the Internet Routing Table: 28207
Prefixes per ASN: 9.08
Origin-only ASes present in the Internet Routing Table: 24602
Origin ASes announcing only one prefix: 11444
Transit ASes present in the Internet Routing Table: 3605
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (39375) 13
Prefixes from unregistered ASNs in the Routing Table: 25568
Unregistered ASNs in the Routing Table: 1888
Number of 32-bit ASNs allocated by the RIRs: 47
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: 787
Number of addresses announced to Internet: 1852593056
Equivalent to 110 /8s, 108 /16s and 83 /24s
Percentage of available address space announced: 50.0
Percentage of allocated address space announced: 61.4
Percentage of available address space allocated: 81.4
Percentage of address space in use by end-sites: 71.9
Total number of prefixes smaller than registry allocations: 123367
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 43195
Total APNIC prefixes after maximum aggregation: 13464
APNIC Deaggregation factor: 3.21
Prefixes being announced from the APNIC address blocks: 55719
Unique aggregates announced from the APNIC address blocks: 23792
APNIC Region origin ASes present in the Internet Routing Table: 1944
APNIC Prefixes per ASN: 28.66
APNIC Region origin ASes announcing only one prefix: 547
APNIC Region transit ASes present in the Internet Routing Table: 354
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 349020128
Equivalent to 20 /8s, 205 /16s and 159 /24s
Percentage of available APNIC address space announced: 80.0
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: 107932
Total ARIN prefixes after maximum aggregation: 59258
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 86932
Unique aggregates announced from the ARIN address blocks: 34225
ARIN Region origin ASes present in the Internet Routing Table: 11816
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4615
ARIN Region transit ASes present in the Internet Routing Table: 1043
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 358062720
Equivalent to 21 /8s, 87 /16s and 154 /24s
Percentage of available ARIN address space announced: 73.6
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: 55366
Total RIPE prefixes after maximum aggregation: 33712
RIPE Deaggregation factor: 1.64
Prefixes being announced from the RIPE address blocks: 50562
Unique aggregates announced from the RIPE address blocks: 33804
RIPE Region origin ASes present in the Internet Routing Table: 11339
RIPE Prefixes per ASN: 4.46
RIPE Region origin ASes announcing only one prefix: 5926
RIPE Region transit ASes present in the Internet Routing Table: 1711
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 357182592
Equivalent to 21 /8s, 74 /16s and 44 /24s
Percentage of available RIPE address space announced: 81.9
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: 20096
Total LACNIC prefixes after maximum aggregation: 5006
LACNIC Deaggregation factor: 4.01
Prefixes being announced from the LACNIC address blocks: 18551
Unique aggregates announced from the LACNIC address blocks: 10046
LACNIC Region origin ASes present in the Internet Routing Table: 902
LACNIC Prefixes per ASN: 20.57
LACNIC Region origin ASes announcing only one prefix: 279
LACNIC Region transit ASes present in the Internet Routing Table: 156
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 51284736
Equivalent to 3 /8s, 14 /16s and 139 /24s
Percentage of available LACNIC address space announced: 50.9
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: 3839
Total AfriNIC prefixes after maximum aggregation: 1178
AfriNIC Deaggregation factor: 3.26
Prefixes being announced from the AfriNIC address blocks: 4201
Unique aggregates announced from the AfriNIC address blocks: 1862
AfriNIC Region origin ASes present in the Internet Routing Table: 241
AfriNIC Prefixes per ASN: 17.43
AfriNIC Region origin ASes announcing only one prefix: 77
AfriNIC Region transit ASes present in the Internet Routing Table: 48
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12207616
Equivalent to 0 /8s, 186 /16s and 70 /24s
Percentage of available AfriNIC address space announced: 36.4
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 1639 387 91 Videsh Sanchar Nigam Ltd. Aut
9498 1170 550 61 BHARTI BT INTERNET LTD.
9583 1150 140 15 Sify Limited
17488 1064 70 76 Hathway IP Over Cable Interne
4134 855 12661 319 CHINANET-BACKBONE
4766 848 6006 343 Korea Telecom (KIX)
18101 679 149 51 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
1221 545 1918 419 Telstra Pty Ltd
4808 521 837 132 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 1425 1030 379 Time Warner Telecom
2386 1403 643 874 AT&T Data Communications Serv
7018 1395 5975 996 AT&T WorldNet Services
11492 1218 148 13 Cable One
7011 1086 318 617 Citizens Utilities
18566 1044 296 10 Covad Communications
6197 1028 630 542 BellSouth Network Solutions,
1785 1017 510 105 AppliedTheory Corporation
174 975 6836 804 Cogent Communications
22773 949 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
9198 428 74 9 Kazakhtelecom Data Network Ad
3292 410 1789 370 TDC Tele Danmark
8452 356 188 7 TEDATA
3301 338 1458 306 TeliaNet Sweden
3320 317 7044 266 Deutsche Telekom AG
8866 298 77 22 Bulgarian Telecommunication C
5462 292 666 26 Telewest Broadband
8551 282 269 37 Bezeq International
3215 279 2686 90 France Telecom Transpac
680 274 2045 264 DFN-IP service G-WiN
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 1219 2464 229 UniNet S.A. de C.V.
11830 601 299 9 Instituto Costarricense de El
22047 566 270 14 VTR PUNTO NET S.A.
7303 460 225 66 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 419 85 46 ENTEL CHILE S.A.
11172 412 117 67 Servicios Alestra S.A de C.V
10620 390 99 69 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
20299 330 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 471 61 28 LINKdotNET AS number
3741 286 853 223 The Internet Solution
20858 222 34 3 EgyNet
5713 174 575 108 Telkom SA Ltd
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 141 70 Tertiary Education Network
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 3714 3045 168 bellsouth.net, inc.
23577 1644 34 702 Korea Telecom (ATM-MPLS)
4755 1639 387 91 Videsh Sanchar Nigam Ltd. Aut
4323 1425 1030 379 Time Warner Telecom
2386 1403 643 874 AT&T Data Communications Serv
7018 1395 5975 996 AT&T WorldNet Services
8151 1219 2464 229 UniNet S.A. de C.V.
11492 1218 148 13 Cable One
9498 1170 550 61 BHARTI BT INTERNET LTD.
9583 1150 140 15 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 1639 1548 Videsh Sanchar Nigam Ltd. Aut
11492 1218 1205 Cable One
9583 1150 1135 Sify Limited
9498 1170 1109 BHARTI BT INTERNET LTD.
4323 1425 1046 Time Warner Telecom
18566 1044 1034 Covad Communications
8151 1219 990 UniNet S.A. de C.V.
17488 1064 988 Hathway IP Over Cable Interne
17676 1016 951 Softbank BB Corp.
23577 1644 942 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 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
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 /8:18 /9:9 /10:16 /11:42 /12:140
/13:281 /14:512 /15:1007 /16:9925 /17:4363 /18:7295
/19:15434 /20:17896 /21:17297 /22:21736 /23:22825 /24:134902
/25:782 /26:927 /27:490 /28:80 /29:9 /30:1
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1201 1218 Cable One
6389 1144 3714 bellsouth.net, inc.
2386 1103 1403 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
9583 988 1150 Sify Limited
4755 985 1639 Videsh Sanchar Nigam Ltd. Aut
7011 969 1086 Citizens Utilities
6478 944 945 AT&T Worldnet Services
17488 877 1064 Hathway IP Over Cable Interne
9498 844 1170 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 8:108 12:2045 13:1 15:20 16:3
17:5 18:13 20:35 24:1069 25:1 32:61
33:3 38:421 40:93 41:673 44:2 47:12
52:3 55:3 56:3 57:23 58:510 59:461
60:442 61:981 62:1104 63:1959 64:3397 65:2427
66:3654 67:1187 68:657 69:2220 70:605 71:121
72:1671 73:5 74:965 75:226 76:307 77:666
78:612 79:151 80:899 81:865 82:618 83:389
84:559 85:1009 86:411 87:658 88:339 89:1301
90:11 91:1231 92:274 93:447 96:32 97:14
98:154 99:3 114:4 116:642 117:327 118:134
119:395 120:39 121:536 122:760 123:348 124:849
125:1133 128:314 129:201 130:132 131:405 132:66
133:9 134:180 135:33 136:221 137:116 138:145
139:64 140:492 141:95 142:390 143:280 144:349
145:50 146:363 147:152 148:493 149:183 150:131
151:183 152:141 153:134 154:10 155:265 156:174
157:270 158:163 159:221 160:255 161:111 162:215
163:199 164:522 165:446 166:304 167:320 168:611
169:131 170:426 171:28 172:22 189:166 190:1996
192:5772 193:4105 194:3260 195:2433 196:1064 198:3729
199:3246 200:5671 201:1461 202:7560 203:7825 204:4000
205:2074 206:2394 207:2746 208:3337 209:3432 210:2535
211:1041 212:1385 213:1654 214:458 215:49 216:4356
217:1204 218:355 219:411 220:1075 221:470 222:308
End of report
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