Routing Table Report 00:00 GMT Mon 12 Nov, 2007
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/oix-data/2007/11/12
Analysis Summary
----------------
BGP routing table entries examined: 244912
Prefixes after maximum aggregation: 123360
Deaggregation factor: 1.99
Unique aggregates announced to Internet: 115712
Total ASes present in the Internet Routing Table: 26694
Prefixes per ASN: 9.17
Origin-only ASes present in the Internet Routing Table: 23146
Origin ASes announcing only one prefix: 11280
Transit ASes present in the Internet Routing Table: 3548
Transit-only ASes present in the Internet Routing Table: 91
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (35389) 25
Prefixes from unregistered ASNs in the Routing Table: 24
Unregistered ASNs in the Routing Table: 11
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1790172464
Equivalent to 106 /8s, 179 /16s and 221 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 114356
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 59473
Total APNIC prefixes after maximum aggregation: 21369
APNIC Deaggregation factor: 2.78
Prefixes being announced from the APNIC address blocks: 56264
Unique aggregates announced from the APNIC address blocks: 23152
APNIC Region origin ASes present in the Internet Routing Table: 3088
APNIC Prefixes per ASN: 18.22
APNIC Region origin ASes announcing only one prefix: 795
APNIC Region transit ASes present in the Internet Routing Table: 478
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 324033980
Equivalent to 19 /8s, 80 /16s and 93 /24s
Percentage of available APNIC address space announced: 74.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 114/7, 116/6, 120/6, 124/7, 126/8
202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 113406
Total ARIN prefixes after maximum aggregation: 64242
ARIN Deaggregation factor: 1.77
Prefixes being announced from the ARIN address blocks: 83648
Unique aggregates announced from the ARIN address blocks: 32712
ARIN Region origin ASes present in the Internet Routing Table: 11945
ARIN Prefixes per ASN: 7.00
ARIN Region origin ASes announcing only one prefix: 4596
ARIN Region transit ASes present in the Internet Routing Table: 1173
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 352905120
Equivalent to 21 /8s, 8 /16s and 231 /24s
Percentage of available ARIN address space announced: 77.9
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
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 50610
Total RIPE prefixes after maximum aggregation: 32017
RIPE Deaggregation factor: 1.58
Prefixes being announced from the RIPE address blocks: 47494
Unique aggregates announced from the RIPE address blocks: 30634
RIPE Region origin ASes present in the Internet Routing Table: 10479
RIPE Prefixes per ASN: 4.53
RIPE Region origin ASes announcing only one prefix: 5536
RIPE Region transit ASes present in the Internet Routing Table: 1650
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 335997604
Equivalent to 20 /8s, 6 /16s and 234 /24s
Percentage of available RIPE address space announced: 77.0
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
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 18041
Total LACNIC prefixes after maximum aggregation: 4606
LACNIC Deaggregation factor: 3.92
Prefixes being announced from the LACNIC address blocks: 15761
Unique aggregates announced from the LACNIC address blocks: 8687
LACNIC Region origin ASes present in the Internet Routing Table: 874
LACNIC Prefixes per ASN: 18.03
LACNIC Region origin ASes announcing only one prefix: 282
LACNIC Region transit ASes present in the Internet Routing Table: 150
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 46004736
Equivalent to 2 /8s, 189 /16s and 250 /24s
Percentage of available LACNIC address space announced: 45.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3349
Total AfriNIC prefixes after maximum aggregation: 1108
AfriNIC Deaggregation factor: 3.02
Prefixes being announced from the AfriNIC address blocks: 2466
Unique aggregates announced from the AfriNIC address blocks: 1403
AfriNIC Region origin ASes present in the Internet Routing Table: 216
AfriNIC Prefixes per ASN: 11.42
AfriNIC Region origin ASes announcing only one prefix: 71
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 7649280
Equivalent to 0 /8s, 116 /16s and 184 /24s
Percentage of available AfriNIC address space announced: 22.8
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
4538 2775 2974 35 China Education and Research
4134 1721 11563 301 CHINANET-BACKBONE
4755 1482 383 69 Videsh Sanchar Nigam Ltd. Aut
9583 1101 81 418 Sify Limited
9498 1046 549 64 BHARTI BT INTERNET LTD.
23577 910 34 787 Korea Telecom (ATM-MPLS)
17488 879 57 70 Hathway IP Over Cable Interne
4766 816 5474 328 Korea Telecom (KIX)
7545 725 159 122 TPG Internet Pty Ltd
18101 608 119 52 Reliance Infocom Ltd Internet
1221 593 1951 438 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 521 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 497 793 119 CNCGROUP IP network: China169
4802 481 130 141 Wantree Development
7474 458 202 269 SingTel Optus Pty Ltd
9443 441 121 71 Primus Telecommunications
9942 422 76 111 COMindico Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 469 1917 382 UUNET - Commercial IP service
9116 350 184 29 Goldenlines main autonomous s
8551 345 332 36 Bezeq International
3301 315 1441 292 TeliaNet Sweden
3320 315 6035 261 Deutsche Telekom AG
1273 278 306 105 Cable & Wireless Deutschland
6746 274 129 253 Dynamic Network Technologies,
8708 274 421 245 Romania Data Systems S.A.
680 268 2045 254 DFN-IP service G-WiN
8866 267 62 25 Bulgarian Telecommunication C
3215 263 2503 98 France Telecom Transpac
8220 255 444 236 COLT Telecommunications
8452 253 188 7 TEDATA
5089 238 1666 54 NTL Group Limited
3352 235 1932 41 Ibernet, Internet Access Netw
3269 228 2966 70 TELECOM ITALIA
3300 222 171 96 AUCS Communications Services
1257 207 1195 177 SWIPnet Swedish IP Network
5462 206 538 26 Telewest Broadband
9121 205 1442 25 TTnet Autonomous System
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1488 6137 995 AT&T WorldNet Services
4323 1359 1014 356 Time Warner Telecom
2386 1258 615 779 AT&T Data Communications Serv
11492 1167 121 47 Cable One
6478 1121 329 183 AT&T Worldnet Services
18566 1031 288 9 Covad Communications
6197 1029 691 518 BellSouth Network Solutions,
7011 982 290 565 Citizens Utilities
174 978 6866 842 Cogent Communications
701 899 6566 703 UUNET Technologies, Inc.
20115 845 773 467 Charter Communications
3356 818 10886 407 Level 3 Communications, LLC
3561 810 2340 372 Savvis
22773 808 2133 54 Cox Communications, Inc.
1239 801 2690 556 Sprint
19262 799 2878 181 Verizon Global Networks
209 733 3784 574 Qwest
5668 664 176 17 CenturyTel Internet Holdings,
15270 598 161 41 PaeTec.net -a division of Pae
852 595 1109 360 Telus Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1721 1420 CHINANET-BACKBONE
4755 1482 1413 Videsh Sanchar Nigam Ltd. Aut
11492 1167 1120 Cable One
18566 1031 1022 Covad Communications
4323 1359 1003 Time Warner Telecom
9498 1046 982 BHARTI BT INTERNET LTD.
8151 1160 945 UniNet S.A. de C.V.
6478 1121 938 AT&T Worldnet Services
17488 879 809 Hathway IP Over Cable Interne
22773 808 754 Cox Communications, Inc.
9583 1101 683 Sify Limited
5668 664 647 CenturyTel Internet Holdings,
19262 799 618 Verizon Global Networks
7545 725 603 TPG Internet Pty Ltd
15270 598 557 PaeTec.net -a division of Pae
18101 608 556 Reliance Infocom Ltd Internet
6517 586 553 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65068 PRIVATE 79.171.184.0/21 43895 *
65100 PRIVATE 80.10.250.0/24 3215 France Telecom Trans
64718 PRIVATE 81.200.197.0/24 25325 AS of Deutsche Bahn
64718 PRIVATE 81.200.198.0/23 25325 AS of Deutsche Bahn
64719 PRIVATE 81.200.204.0/24 25325 AS of Deutsche Bahn
65100 PRIVATE 129.6.112.0/24 10886 University of Maryla
65100 PRIVATE 193.253.152.0/24 3215 France Telecom Trans
64532 PRIVATE 195.22.48.64/27 6721 The Terminal Bar: In
65002 PRIVATE 198.128.4.0/24 292 Energy Sciences Netw
65001 PRIVATE 198.128.15.96/27 293 Energy Sciences Netw
65002 PRIVATE 198.129.33.36/32 292 Energy Sciences Netw
65001 PRIVATE 198.129.44.28/32 293 Energy Sciences Netw
65002 PRIVATE 198.129.224.96/29 292 Energy Sciences Netw
65002 PRIVATE 198.129.252.32/30 292 Energy Sciences Netw
65002 PRIVATE 198.129.252.112/30 292 Energy Sciences Netw
65002 PRIVATE 198.129.252.116/30 292 Energy Sciences Netw
65002 PRIVATE 198.129.252.120/30 292 Energy Sciences Netw
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
64512 PRIVATE 217.134.164.0/22 5428 Energis Communicatio
64512 PRIVATE 217.134.168.0/21 5428 Energis Communicatio
64512 PRIVATE 217.134.176.0/21 5428 Energis Communicatio
64512 PRIVATE 217.134.184.0/22 5428 Energis Communicatio
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
172.31.46.0/24 38416 KRNIC
192.0.2.0/24 2854 RoSprint AS (Global One Russi
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.14.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.15.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.153.136.0/21 721 DLA Systems Automation Center
192.172.0.0/19 721 DLA Systems Automation Center
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 /11:39 /12:136
/13:275 /14:492 /15:962 /16:9809 /17:4300 /18:6944
/19:15070 /20:17853 /21:16079 /22:20374 /23:21382 /24:127502
/25:953 /26:1141 /27:619 /28:286 /29:238 /30:342
/31:0 /32:73
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1158 1167 Cable One
6478 1120 1121 AT&T Worldnet Services
18566 1013 1031 Covad Communications
2386 951 1258 AT&T Data Communications Serv
9583 946 1101 Sify Limited
4538 932 2775 China Education and Research
23577 901 910 Korea Telecom (ATM-MPLS)
7011 869 982 Citizens Utilities
4755 850 1482 Videsh Sanchar Nigam Ltd. Aut
7018 820 1488 AT&T WorldNet Services
6197 774 1029 BellSouth Network Solutions,
9498 730 1046 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
4766 607 816 Korea Telecom (KIX)
4323 576 1359 Time Warner Telecom
19916 564 569 OLM LLC
15270 560 598 PaeTec.net -a division of Pae
4134 544 1721 CHINANET-BACKBONE
6517 542 586 Yipes Communications, Inc.
5668 522 664 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:90 12:1844 13:1 15:19 16:3
17:6 18:13 20:35 24:1021 25:1 32:174
33:3 38:361 40:64 41:397 43:6 44:2
47:8 52:3 55:3 56:3 57:43 58:521
59:433 60:384 61:1037 62:994 63:1989 64:3393
65:2440 66:3630 67:906 68:683 69:2020 70:484
71:119 72:1437 73:7 74:759 75:322 76:159
77:418 78:272 79:10 80:885 81:801 82:597
83:347 84:621 85:821 86:359 87:591 88:282
89:1018 90:38 91:735 92:5 96:2 97:6
98:9 116:434 117:224 118:44 121:339 122:646
123:209 124:707 125:1121 128:310 129:196 130:141
131:370 132:61 133:9 134:194 135:34 136:192
137:86 138:152 139:104 140:519 141:145 142:373
143:256 144:324 145:50 146:326 147:125 148:547
149:187 150:170 151:136 152:95 153:121 154:12
155:261 156:164 157:225 158:160 159:196 160:133
161:101 162:191 163:185 164:501 165:408 166:303
167:306 168:512 169:130 170:418 171:26 172:6
189:115 190:1201 192:5760 193:4070 194:3273 195:2562
196:987 198:3888 199:3233 200:5233 201:1250 202:7929
203:7901 204:3988 205:2008 206:2461 207:2815 208:2966
209:3630 210:2813 211:1206 212:1321 213:1546 214:418
215:44 216:4151 217:1200 218:426 219:468 220:1017
221:447 222:347
End of report