Routing Table Report 04:00 +10GMT Sun 05 Feb, 2006
Analysis Summary
----------------
BGP routing table entries examined: 181432
Prefixes after maximum aggregation: 100837
Unique aggregates announced to Internet: 88056
Total ASes present in the Internet Routing Table: 21436
Origin-only ASes present in the Internet Routing Table: 18630
Origin ASes announcing only one prefix: 8846
Transit ASes present in the Internet Routing Table: 2806
Transit-only ASes present in the Internet Routing Table: 77
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: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1487157152
Equivalent to 88 /8s, 164 /16s and 55 /24s
Percentage of available address space announced: 40.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 88481
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37938
Total APNIC prefixes after maximum aggregation: 16034
Prefixes being announced from the APNIC address blocks: 35706
Unique aggregates announced from the APNIC address blocks: 17456
APNIC Region origin ASes present in the Internet Routing Table: 2462
APNIC Region origin ASes announcing only one prefix: 689
APNIC Region transit ASes present in the Internet Routing Table: 380
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211739360
Equivalent to 12 /8s, 158 /16s and 226 /24s
Percentage of available APNIC address space announced: 66.2
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: 95738
Total ARIN prefixes after maximum aggregation: 56465
Prefixes being announced from the ARIN address blocks: 75044
Unique aggregates announced from the ARIN address blocks: 28435
ARIN Region origin ASes present in the Internet Routing Table: 10482
ARIN Region origin ASes announcing only one prefix: 3918
ARIN Region transit ASes present in the Internet Routing Table: 969
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 286174208
Equivalent to 17 /8s, 14 /16s and 172 /24s
Percentage of available ARIN address space announced: 71.1
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: 35562
Total RIPE prefixes after maximum aggregation: 23997
Prefixes being announced from the RIPE address blocks: 32592
Unique aggregates announced from the RIPE address blocks: 21945
RIPE Region origin ASes present in the Internet Routing Table: 7602
RIPE Region origin ASes announcing only one prefix: 3976
RIPE Region transit ASes present in the Internet Routing Table: 1266
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 230737024
Equivalent to 13 /8s, 192 /16s and 196 /24s
Percentage of available RIPE address space announced: 68.8
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: 10325
Total LACNIC prefixes after maximum aggregation: 3466
Prefixes being announced from the LACNIC address blocks: 8524
Unique aggregates announced from the LACNIC address blocks: 5121
LACNIC Region origin ASes present in the Internet Routing Table: 668
LACNIC Region origin ASes announcing only one prefix: 219
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 25055488
Equivalent to 1 /8s, 126 /16s and 81 /24s
Percentage of available LACNIC address space announced: 37.3
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: 1864
Total AfriNIC prefixes after maximum aggregation: 875
Prefixes being announced from the AfriNIC address blocks: 1226
Unique aggregates announced from the AfriNIC address blocks: 862
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 44
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: 3038976
Equivalent to 0 /8s, 46 /16s and 95 /24s
Percentage of available AfriNIC address space announced: 9.1
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 982 6462 204 CHINANET-BACKBONE
9583 849 109 15 Sify Limited
4755 801 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 710 3927 301 Korea Telecom (KIX)
1221 668 1428 476 Telstra Pty Ltd
9498 522 211 71 BHARTI BT INTERNET LTD.
7545 512 108 68 TPG Internet Pty Ltd
17676 480 6949 104 Softbank BB Corp.
17488 450 27 7 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 370 75 161 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 325 68 26 Reliance Infocom Ltd Internet
17974 316 77 37 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 1464 6263 947 AT&T WorldNet Services
4323 1211 720 238 Time Warner Telecom
174 1031 5789 944 Cogent Communications
721 1030 21970 310 DLA Systems Automation Center
6197 988 621 458 BellSouth Network Solutions,
19029 979 152 115 New Edge Networks
701 948 8064 791 UUNET Technologies, Inc.
18566 903 272 8 Covad Communications
2386 883 501 690 AT&T Data Communications Serv
1239 851 2792 611 Sprint
209 679 3605 536 Qwest
20115 677 565 355 Charter Communications
6198 635 449 238 BellSouth Network Solutions,
11492 628 81 12 Cable One
22773 618 1479 38 Cox Communications, Inc.
19262 612 1768 149 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
702 590 1955 466 UUNET - Commercial IP service
3301 304 1071 290 TeliaNet Sweden
3352 303 1500 34 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 221 274 205 Romania Data Systems S.A.
6746 217 85 190 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
8866 175 37 13 Bulgarian Telecommunication C
786 173 1794 173 The JANET IP Service
3215 169 1390 83 France Telecom Transpac
24863 169 38 9 LINKdotNET AS number
5400 167 328 137 BT Ignite European Backbone
3300 165 171 94 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 569 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 184 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 122 8 29 Telconet
10481 121 48 8 Prima S.A.
6503 117 148 77 AVANTEL, S.A.
21826 115 15 21 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 106 88 78 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 279 819 234 The Internet Solution
8452 159 60 7 TEDATA
5536 123 8 15 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 67 71 10 Itissalat Al-MAGHRIB
20928 58 16 2 Noor Advanced Technologies AS
24835 55 34 6 RAYA Telecom - Egypt
5713 38 166 34 Telkom SA Ltd
33774 37 9 28 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
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 979 864 New Edge Networks
9583 849 834 Sify Limited
4134 982 778 CHINANET-BACKBONE
4755 801 737 Videsh Sanchar Nigam Ltd. Aut
721 1030 720 DLA Systems Automation Center
11492 628 616 Cable One
22773 618 580 Cox Communications, Inc.
6197 988 530 BellSouth Network Solutions,
19916 563 509 OLM LLC
855 573 508 Canadian Research Network
5668 515 491 CenturyTel Internet Holdings,
19262 612 463 Verizon Global Networks
9498 522 451 BHARTI BT INTERNET LTD.
7545 512 444 TPG Internet Pty Ltd
17488 450 443 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
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
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
192.172.0.0/19 721 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 /11:20 /12:87
/13:199 /14:346 /15:688 /16:8681 /17:2995 /18:5031
/19:11254 /20:12450 /21:10845 /22:13865 /23:15094 /24:98835
/25:335 /26:287 /27:203 /28:61 /29:25 /30:54
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
19029 901 979 New Edge Networks
18566 886 903 Covad Communications
6197 784 988 BellSouth Network Solutions,
7018 747 1464 AT&T WorldNet Services
9583 668 849 Sify Limited
11492 620 628 Cable One
2386 616 883 AT&T Data Communications Serv
4323 583 1211 Time Warner Telecom
19916 557 563 OLM LLC
4766 514 710 Korea Telecom (KIX)
6198 500 635 BellSouth Network Solutions,
855 445 573 Canadian Research Network
7757 443 461 AT&T Broadband
7011 415 483 Citizens Utilities
5668 402 515 CenturyTel Internet Holdings,
702 374 590 UUNET - Commercial IP service
1239 367 851 Sprint
6517 343 369 Yipes Communications, Inc.
15270 340 368 PaeTec.net -a division of Pae
22773 322 618 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1631 13:1 15:12 16:3
17:3 18:4 20:43 24:859 25:1 30:2
32:66 38:195 40:54 44:3 47:3 52:4
55:1 56:3 57:33 58:117 59:167 60:179
61:828 62:769 63:1901 64:3060 65:2240 66:3064
67:576 68:668 69:1434 70:296 71:55 72:605
73:23 74:2 80:756 81:586 82:504 83:359
84:343 85:427 86:289 87:161 88:18 89:14
124:11 125:200 128:150 129:170 130:103 131:310
132:33 133:7 134:145 135:46 136:169 137:60
138:182 139:85 140:448 141:132 142:414 143:144
144:224 145:39 146:309 147:135 148:323 149:186
150:114 151:73 152:61 153:102 154:6 155:186
156:90 157:120 158:158 159:181 160:88 161:67
162:218 163:177 164:180 165:197 166:145 167:236
168:472 169:139 170:315 171:12 190:30 192:5760
193:3352 194:2491 195:1760 196:744 198:3895 199:3263
200:4245 201:574 202:6441 203:6771 204:3894 205:2102
206:2432 207:2926 208:1993 209:3842 210:1908 211:802
212:1283 213:1458 214:326 215:40 216:4077 217:1158
218:238 219:137 220:636 221:339 222:147
End of report