Routing Table Report 04:00 +10GMT Wed 08 Feb, 2006
Analysis Summary
----------------
BGP routing table entries examined: 181497
Prefixes after maximum aggregation: 100938
Unique aggregates announced to Internet: 88224
Total ASes present in the Internet Routing Table: 21459
Origin-only ASes present in the Internet Routing Table: 18639
Origin ASes announcing only one prefix: 8852
Transit ASes present in the Internet Routing Table: 2820
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1489063328
Equivalent to 88 /8s, 193 /16s and 77 /24s
Percentage of available address space announced: 40.2
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 88387
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37958
Total APNIC prefixes after maximum aggregation: 16035
Prefixes being announced from the APNIC address blocks: 35722
Unique aggregates announced from the APNIC address blocks: 17468
APNIC Region origin ASes present in the Internet Routing Table: 2460
APNIC Region origin ASes announcing only one prefix: 687
APNIC Region transit ASes present in the Internet Routing Table: 381
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 212096736
Equivalent to 12 /8s, 164 /16s and 86 /24s
Percentage of available APNIC address space announced: 66.3
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: 95677
Total ARIN prefixes after maximum aggregation: 56502
Prefixes being announced from the ARIN address blocks: 75063
Unique aggregates announced from the ARIN address blocks: 28377
ARIN Region origin ASes present in the Internet Routing Table: 10493
ARIN Region origin ASes announcing only one prefix: 3924
ARIN Region transit ASes present in the Internet Routing Table: 975
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 286932224
Equivalent to 17 /8s, 26 /16s and 61 /24s
Percentage of available ARIN address space announced: 71.3
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 35645
Total RIPE prefixes after maximum aggregation: 24042
Prefixes being announced from the RIPE address blocks: 32674
Unique aggregates announced from the RIPE address blocks: 22017
RIPE Region origin ASes present in the Internet Routing Table: 7618
RIPE Region origin ASes announcing only one prefix: 3979
RIPE Region transit ASes present in the Internet Routing Table: 1276
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 231617408
Equivalent to 13 /8s, 206 /16s and 51 /24s
Percentage of available RIPE address space announced: 69.0
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
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10337
Total LACNIC prefixes after maximum aggregation: 3485
Prefixes being announced from the LACNIC address blocks: 8532
Unique aggregates announced from the LACNIC address blocks: 5133
LACNIC Region origin ASes present in the Internet Routing Table: 670
LACNIC Region origin ASes announcing only one prefix: 219
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 25081856
Equivalent to 1 /8s, 126 /16s and 184 /24s
Percentage of available LACNIC address space announced: 37.4
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: 1874
Total AfriNIC prefixes after maximum aggregation: 874
Prefixes being announced from the AfriNIC address blocks: 1233
Unique aggregates announced from the AfriNIC address blocks: 870
AfriNIC Region origin ASes present in the Internet Routing Table: 146
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3106304
Equivalent to 0 /8s, 47 /16s and 102 /24s
Percentage of available AfriNIC address space announced: 9.3
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 984 6480 204 CHINANET-BACKBONE
9583 850 109 16 Sify Limited
4755 807 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 710 3927 301 Korea Telecom (KIX)
1221 667 1412 474 Telstra Pty Ltd
9498 524 211 73 BHARTI BT INTERNET LTD.
7545 515 108 70 TPG Internet Pty Ltd
17676 480 6949 104 Softbank BB Corp.
17488 451 27 7 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 366 75 157 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
7474 329 211 227 SingTel Optus Pty Ltd
18101 325 68 26 Reliance Infocom Ltd Internet
17974 317 77 38 PT TELEKOMUNIKASI INDONESIA
17557 311 25 161 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 273 78 169 Powertel Ltd
9800 259 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6264 952 AT&T WorldNet Services
4323 1211 720 238 Time Warner Telecom
174 1028 5788 941 Cogent Communications
721 1022 21954 309 DLA Systems Automation Center
6197 986 595 475 BellSouth Network Solutions,
19029 976 152 114 New Edge Networks
701 951 8064 793 UUNET Technologies, Inc.
18566 903 272 8 Covad Communications
2386 888 505 665 AT&T Data Communications Serv
1239 855 2792 614 Sprint
209 681 3606 537 Qwest
20115 662 564 354 Charter Communications
6198 636 449 238 BellSouth Network Solutions,
11492 628 81 12 Cable One
22773 621 1479 38 Cox Communications, Inc.
19262 620 1769 150 Verizon Global Networks
855 573 243 65 Canadian Research Network
852 572 1092 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
3602 521 127 106 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 591 1955 467 UUNET - Commercial IP service
3301 305 1071 290 TeliaNet Sweden
3352 302 1484 33 Ibernet, Internet Access Netw
3320 280 3477 234 Deutsche Telekom AG
8220 275 474 269 COLT Telecommunications
680 242 2025 239 DFN-IP service G-WiN
3246 228 487 219 Song Networks
8708 222 274 205 Romania Data Systems S.A.
6746 218 85 191 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 177 840 125 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 173 37 13 Bulgarian Telecommunication C
3215 171 1406 84 France Telecom Transpac
24863 168 38 9 LINKdotNET AS number
5400 165 328 135 BT Ignite European Backbone
3300 164 170 93 AUCS Communications Services
6830 160 669 33 UPC Distribution Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 568 1048 217 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 304 110 77 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 187 51 26 Mega Cable S.A. de C.V.
14117 183 11 6 Telefonica del Sur S.A.
7303 155 73 19 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 123 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 116 148 77 AVANTEL, S.A.
21826 115 15 21 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 88 80 Global One Communicaoes Ltda
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
11311 95 8 23 Sinectis S.A.
4270 92 17 9 Red de Interconexion Universi
23216 91 23 10 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 819 234 The Internet Solution
8452 159 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 102 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 68 71 10 Itissalat Al-MAGHRIB
20928 58 16 2 Noor Advanced Technologies AS
24835 57 50 7 RAYA Telecom - Egypt
5713 38 166 34 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 21 AS Number for Telecom Algeria
12455 28 6 5 Jambonet Autonomous system
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 21 14 18 SONATEL-AS Autonomous System
21280 21 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1211 973 Time Warner Telecom
18566 903 895 Covad Communications
19029 976 862 New Edge Networks
9583 850 834 Sify Limited
4134 984 780 CHINANET-BACKBONE
4755 807 743 Videsh Sanchar Nigam Ltd. Aut
721 1022 713 DLA Systems Automation Center
11492 628 616 Cable One
22773 621 583 Cox Communications, Inc.
6197 986 511 BellSouth Network Solutions,
19916 563 509 OLM LLC
855 573 508 Canadian Research Network
5668 515 491 CenturyTel Internet Holdings,
19262 620 470 Verizon Global Networks
9498 524 451 BHARTI BT INTERNET LTD.
7545 515 445 TPG Internet Pty Ltd
17488 451 444 Hathway IP Over Cable Interne
7757 461 442 AT&T Broadband
3602 521 415 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
36381 UNALLOCATED 12.147.156.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.147.157.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.147.158.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.147.159.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.244.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.245.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.246.0/24 7018 AT&T WorldNet Servic
36381 UNALLOCATED 12.178.247.0/24 7018 AT&T WorldNet Servic
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
65518 PRIVATE 211.144.192.0/19 24421 *
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
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 /10:8 /11:22 /12:87
/13:198 /14:345 /15:688 /16:8690 /17:3002 /18:5057
/19:11266 /20:12492 /21:10861 /22:13867 /23:15110 /24:98804
/25:318 /26:267 /27:204 /28:62 /29:25 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
19029 898 976 New Edge Networks
18566 886 903 Covad Communications
6197 784 986 BellSouth Network Solutions,
7018 749 1471 AT&T WorldNet Services
9583 669 850 Sify Limited
11492 620 628 Cable One
2386 618 888 AT&T Data Communications Serv
4323 583 1211 Time Warner Telecom
19916 557 563 OLM LLC
4766 514 710 Korea Telecom (KIX)
6198 501 636 BellSouth Network Solutions,
855 445 573 Canadian Research Network
7757 443 461 AT&T Broadband
7011 417 485 Citizens Utilities
5668 402 515 CenturyTel Internet Holdings,
702 375 591 UUNET - Commercial IP service
1239 370 855 Sprint
15270 341 370 PaeTec.net -a division of Pae
6517 339 365 Yipes Communications, Inc.
22773 324 621 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1638 13:1 15:12 16:3
17:3 18:4 20:44 24:857 25:1 30:2
32:66 38:196 40:53 44:3 47:3 52:4
55:1 56:3 57:33 58:117 59:166 60:179
61:825 62:765 63:1896 64:3062 65:2241 66:3079
67:577 68:664 69:1409 70:299 71:50 72:609
73:23 74:4 80:746 81:587 82:508 83:359
84:345 85:427 86:308 87:164 88:18 89:16
124:11 125:199 128:151 129:170 130:103 131:315
132:33 133:7 134:146 135:46 136:169 137:60
138:181 139:85 140:383 141:132 142:414 143:145
144:224 145:39 146:309 147:135 148:321 149:186
150:115 151:74 152:61 153:102 154:6 155:186
156:91 157:120 158:158 159:181 160:88 161:67
162:219 163:142 164:173 165:203 166:145 167:236
168:471 169:139 170:315 171:12 190:30 192:5764
193:3359 194:2501 195:1762 196:749 198:3904 199:3264
200:4248 201:575 202:6454 203:6777 204:3896 205:2107
206:2434 207:2923 208:1990 209:3838 210:1910 211:804
212:1278 213:1465 214:326 215:40 216:4077 217:1150
218:237 219:137 220:633 221:339 222:148
End of report