Routing Table Report 00:00 GMT Mon 11 Dec, 2006
Analysis Summary
----------------
BGP routing table entries examined: 216196
Prefixes after maximum aggregation: 113527
Unique aggregates announced to Internet: 100382
Total ASes present in the Internet Routing Table: 23966
Origin-only ASes present in the Internet Routing Table: 20806
Origin ASes announcing only one prefix: 10050
Transit ASes present in the Internet Routing Table: 3160
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 39
Max AS path prepend of ASN (14282) 36
Prefixes from unregistered ASNs in the Routing Table: 25
Unregistered ASNs in the Routing Table: 16
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1655110645
Equivalent to 98 /8s, 166 /16s and 251 /24s
Percentage of available address space announced: 44.7
Percentage of allocated address space announced: 63.3
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 112549
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47336
Total APNIC prefixes after maximum aggregation: 18883
Prefixes being announced from the APNIC address blocks: 44831
Unique aggregates announced from the APNIC address blocks: 19636
APNIC Region origin ASes present in the Internet Routing Table: 2810
APNIC Region origin ASes announcing only one prefix: 791
APNIC Region transit ASes present in the Internet Routing Table: 432
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 271748352
Equivalent to 16 /8s, 50 /16s and 141 /24s
Percentage of available APNIC address space announced: 85.0
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, 121/8, 122/7, 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: 109210
Total ARIN prefixes after maximum aggregation: 61706
Prefixes being announced from the ARIN address blocks: 81304
Unique aggregates announced from the ARIN address blocks: 28496
ARIN Region origin ASes present in the Internet Routing Table: 11227
ARIN Region origin ASes announcing only one prefix: 4266
ARIN Region transit ASes present in the Internet Routing Table: 1071
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 31
Number of ARIN addresses announced to Internet: 310271072
Equivalent to 18 /8s, 126 /16s and 92 /24s
Percentage of available ARIN address space announced: 68.5
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
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: 43626
Total RIPE prefixes after maximum aggregation: 28014
Prefixes being announced from the RIPE address blocks: 40675
Unique aggregates announced from the RIPE address blocks: 26189
RIPE Region origin ASes present in the Internet Routing Table: 8929
RIPE Region origin ASes announcing only one prefix: 4694
RIPE Region transit ASes present in the Internet Routing Table: 1459
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 274397185
Equivalent to 16 /8s, 90 /16s and 248 /24s
Percentage of available RIPE address space announced: 74.3
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13420
Total LACNIC prefixes after maximum aggregation: 3943
Prefixes being announced from the LACNIC address blocks: 11473
Unique aggregates announced from the LACNIC address blocks: 6656
LACNIC Region origin ASes present in the Internet Routing Table: 752
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 136
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 39
Number of LACNIC addresses announced to Internet: 35337984
Equivalent to 2 /8s, 27 /16s and 55 /24s
Percentage of available LACNIC address space announced: 52.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2580
Total AfriNIC prefixes after maximum aggregation: 981
Prefixes being announced from the AfriNIC address blocks: 1824
Unique aggregates announced from the AfriNIC address blocks: 1051
AfriNIC Region origin ASes present in the Internet Routing Table: 171
AfriNIC Region origin ASes announcing only one prefix: 50
AfriNIC Region transit ASes present in the Internet Routing Table: 28
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 4792832
Equivalent to 0 /8s, 73 /16s and 34 /24s
Percentage of available AfriNIC address space announced: 14.3
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
4134 1268 8510 250 CHINANET-BACKBONE
4755 1059 383 65 Videsh Sanchar Nigam Ltd. Aut
9583 1012 86 276 Sify Limited
4538 947 2846 35 China Education and Research
9498 893 212 65 BHARTI BT INTERNET LTD.
23577 776 35 706 KRNIC
4766 745 4945 306 Korea Telecom (KIX)
1221 623 1698 458 Telstra Pty Ltd
17488 556 35 20 Hathway IP Over Cable Interne
7545 552 126 75 TPG Internet Pty Ltd
17676 502 10935 66 Softbank BB Corp.
18101 491 87 23 Reliance Infocom Ltd Internet
9443 442 111 74 Primus Telecommunications
9942 437 81 130 COMindico Australia
4812 431 753 65 China Telecom (Shanghai)
17849 423 36 126 Telecommunications Technology
4802 414 86 151 Wantree Development
7474 372 211 229 SingTel Optus Pty Ltd
17557 369 32 174 Pakistan Telecom
17974 368 129 12 PT TELEKOMUNIKASI INDONESIA
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1928 425 UUNET - Commercial IP service
3215 411 2104 96 France Telecom Transpac
24863 383 45 15 LINKdotNET AS number
3301 309 1199 293 TeliaNet Sweden
3320 297 4992 245 Deutsche Telekom AG
8220 277 474 266 COLT Telecommunications
6746 260 92 237 Dynamic Network Technologies,
680 252 2041 248 DFN-IP service G-WiN
1257 250 1073 173 SWIPnet Swedish IP Network
8708 228 281 215 Romania Data Systems S.A.
9116 227 134 23 Goldenlines main autonomous s
30890 210 19 89 SC Kappa Invexim SRL
3269 208 2357 75 TELECOM ITALIA
3246 205 353 192 Song Networks
5416 205 13 9 BATELCO-BH
5089 203 184 60 NTL Group Limited
8551 200 198 23 Bezeq International
3300 187 172 101 AUCS Communications Services
6830 185 823 39 UPC Distribution Services
786 172 1795 172 The JANET IP Service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 4866 6689 766 UUNET Technologies, Inc.
7018 1552 6181 977 AT&T WorldNet Services
705 1434 555 633 UUNET Technologies, Inc.
2386 1112 586 739 AT&T Data Communications Serv
4323 1050 804 295 Time Warner Telecom
6197 1019 638 505 BellSouth Network Solutions,
18566 981 272 8 Covad Communications
174 972 6826 884 Cogent Communications
11492 837 98 11 Cable One
1239 833 2715 583 Sprint
7046 806 251 661 UUNET Technologies, Inc.
721 796 21885 294 DLA Systems Automation Center
19262 784 2454 178 Verizon Global Networks
20115 765 665 412 Charter Communications
22773 712 1744 41 Cox Communications, Inc.
209 708 3761 558 Qwest
7011 693 211 430 Citizens Utilities
852 610 1091 389 Telus Advanced Communications
19916 567 48 57 OLM LLC
6198 551 527 258 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1268 1018 CHINANET-BACKBONE
4755 1059 994 Videsh Sanchar Nigam Ltd. Aut
18566 981 973 Covad Communications
4538 947 912 China Education and Research
9498 893 828 BHARTI BT INTERNET LTD.
11492 837 826 Cable One
705 1434 801 UUNET Technologies, Inc.
4323 1050 755 Time Warner Telecom
9583 1012 736 Sify Limited
22773 712 671 Cox Communications, Inc.
19262 784 606 Verizon Global Networks
7018 1552 575 AT&T WorldNet Services
8151 775 568 UniNet S.A. de C.V.
17488 556 536 Hathway IP Over Cable Interne
5668 546 527 CenturyTel Internet Holdings,
6197 1019 514 BellSouth Network Solutions,
19916 567 510 OLM LLC
721 796 502 DLA Systems Automation Center
11830 506 497 Instituto Costarricense de El
7545 552 477 TPG Internet Pty Ltd
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65509 PRIVATE 84.221.16.0/23 3257 Tiscali Intl Network
65515 PRIVATE 87.251.34.0/24 12859 Business Internet Tr
65515 PRIVATE 87.251.36.0/24 12859 Business Internet Tr
65010 PRIVATE 135.196.7.112/29 8190 VIATEL
65019 PRIVATE 135.196.106.208/28 8190 VIATEL
65014 PRIVATE 135.196.176.96/27 8190 VIATEL
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65010 PRIVATE 212.2.12.160/28 8190 VIATEL
65016 PRIVATE 212.2.26.64/29 8190 VIATEL
65016 PRIVATE 212.2.31.184/30 8190 VIATEL
65515 PRIVATE 213.154.234.0/27 12859 Business Internet Tr
65517 PRIVATE 213.154.248.0/29 12859 Business Internet Tr
65517 PRIVATE 213.154.248.8/29 12859 Business Internet Tr
65526 PRIVATE 213.205.19.128/28 3257 Tiscali Intl Network
65526 PRIVATE 213.205.19.144/28 3257 Tiscali Intl Network
65533 PRIVATE 213.213.213.213/32 3257 Tiscali Intl Network
65018 PRIVATE 213.235.24.216/29 8190 VIATEL
65010 PRIVATE 213.235.29.224/29 8190 VIATEL
65013 PRIVATE 213.235.33.0/27 8190 VIATEL
65017 PRIVATE 213.235.48.96/28 8190 VIATEL
65019 PRIVATE 216.195.13.0/24 19034 Norcom Networks Corp
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
0.0.0.0/0 286 KPNQwest Backbone AS
192.0.2.0/24 2854 RoSprint AS (Global One Russi
192.168.83.0/24 292 Energy Sciences Network
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
103.195.3.24/29 2529 Demon Internet
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
172.33.1.0/24 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
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
!!Default route being announced!!
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:10 /10:13 /11:28 /12:113
/13:233 /14:400 /15:797 /16:9125 /17:3670 /18:5976
/19:12951 /20:14664 /21:13344 /22:16963 /23:18507 /24:116631
/25:726 /26:545 /27:460 /28:236 /29:176 /30:505
/31:0 /32:102
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 3620 4866 UUNET Technologies, Inc.
18566 964 981 Covad Communications
705 896 1434 UUNET Technologies, Inc.
9583 844 1012 Sify Limited
7018 833 1552 AT&T WorldNet Services
2386 828 1112 AT&T Data Communications Serv
11492 823 837 Cable One
6197 795 1019 BellSouth Network Solutions,
23577 762 776 KRNIC
7011 598 693 Citizens Utilities
19916 562 567 OLM LLC
7046 559 806 UUNET Technologies, Inc.
4766 556 745 Korea Telecom (KIX)
9498 547 893 BHARTI BT INTERNET LTD.
4538 529 947 China Education and Research
4755 481 1059 Videsh Sanchar Nigam Ltd. Aut
15270 462 492 PaeTec.net -a division of Pae
855 436 539 Canadian Research Network
18101 423 491 Reliance Infocom Ltd Internet
5668 419 546 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:61 9:1 12:1667 13:1 15:15
16:3 17:3 18:5 20:34 24:844 25:1
32:176 38:268 40:57 41:47 44:2 47:10
52:4 53:1 55:1 56:3 57:53 58:282
59:375 60:223 61:969 62:1186 63:3351 64:3320
65:3622 66:3207 67:703 68:658 69:1724 70:406
71:114 72:1025 74:113 75:49 76:15 77:2
80:829 81:780 82:670 83:386 84:495 85:736
86:414 87:432 88:264 89:654 90:1 91:95
97:1 121:92 122:41 123:3 124:476 125:742
128:312 129:205 130:131 131:320 132:48 133:11
134:177 135:41 136:179 137:115 138:188 139:100
140:521 141:135 142:366 143:215 144:256 145:67
146:325 147:142 148:366 149:175 150:110 151:118
152:83 153:116 154:6 155:249 156:148 157:153
158:166 159:137 160:98 161:83 162:218 163:159
164:282 165:239 166:244 167:278 168:479 169:123
170:385 171:12 172:1 189:27 190:288 192:5821
193:3632 194:2925 195:2298 196:974 198:3934 199:3371
200:4606 201:936 202:7218 203:7276 204:4109 205:2213
206:2648 207:3158 208:3072 209:3706 210:2404 211:974
212:1406 213:1491 214:382 215:39 216:4258 217:1343
218:366 219:291 220:818 221:386 222:258
End of report