Routing Table Report 04:00 +10GMT Tue 21 Feb, 2006
Analysis Summary
----------------
BGP routing table entries examined: 182270
Prefixes after maximum aggregation: 101380
Unique aggregates announced to Internet: 88687
Total ASes present in the Internet Routing Table: 21557
Origin-only ASes present in the Internet Routing Table: 18727
Origin ASes announcing only one prefix: 8909
Transit ASes present in the Internet Routing Table: 2830
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 23
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1499622880
Equivalent to 89 /8s, 98 /16s and 109 /24s
Percentage of available address space announced: 40.5
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 89027
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38273
Total APNIC prefixes after maximum aggregation: 16207
Prefixes being announced from the APNIC address blocks: 36000
Unique aggregates announced from the APNIC address blocks: 17639
APNIC Region origin ASes present in the Internet Routing Table: 2470
APNIC Region origin ASes announcing only one prefix: 682
APNIC Region transit ASes present in the Internet Routing Table: 384
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 214563552
Equivalent to 12 /8s, 201 /16s and 250 /24s
Percentage of available APNIC address space announced: 67.1
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, 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: 95766
Total ARIN prefixes after maximum aggregation: 56596
Prefixes being announced from the ARIN address blocks: 75048
Unique aggregates announced from the ARIN address blocks: 28477
ARIN Region origin ASes present in the Internet Routing Table: 10529
ARIN Region origin ASes announcing only one prefix: 3945
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 287893248
Equivalent to 17 /8s, 40 /16s and 231 /24s
Percentage of available ARIN address space announced: 71.5
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
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: 36030
Total RIPE prefixes after maximum aggregation: 24231
Prefixes being announced from the RIPE address blocks: 33049
Unique aggregates announced from the RIPE address blocks: 22275
RIPE Region origin ASes present in the Internet Routing Table: 7677
RIPE Region origin ASes announcing only one prefix: 4021
RIPE Region transit ASes present in the Internet Routing Table: 1295
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 237078912
Equivalent to 14 /8s, 33 /16s and 137 /24s
Percentage of available RIPE address space announced: 70.7
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: 10249
Total LACNIC prefixes after maximum aggregation: 3459
Prefixes being announced from the LACNIC address blocks: 8425
Unique aggregates announced from the LACNIC address blocks: 5083
LACNIC Region origin ASes present in the Internet Routing Table: 672
LACNIC Region origin ASes announcing only one prefix: 220
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 25456128
Equivalent to 1 /8s, 132 /16s and 110 /24s
Percentage of available LACNIC address space announced: 37.9
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: 1923
Total AfriNIC prefixes after maximum aggregation: 887
Prefixes being announced from the AfriNIC address blocks: 1293
Unique aggregates announced from the AfriNIC address blocks: 889
AfriNIC Region origin ASes present in the Internet Routing Table: 146
AfriNIC Region origin ASes announcing only one prefix: 41
AfriNIC Region transit ASes present in the Internet Routing Table: 22
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3780352
Equivalent to 0 /8s, 57 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 11.3
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 986 6768 206 CHINANET-BACKBONE
9583 853 109 15 Sify Limited
4766 701 3927 301 Korea Telecom (KIX)
4755 667 255 61 Videsh Sanchar Nigam Ltd. Aut
1221 651 1428 467 Telstra Pty Ltd
9498 535 211 73 BHARTI BT INTERNET LTD.
7545 516 108 69 TPG Internet Pty Ltd
17488 516 31 7 Hathway IP Over Cable Interne
17676 481 6965 105 Softbank BB Corp.
9443 411 94 85 Primus Telecommunications
4802 367 75 159 Wantree Development
2907 341 1763 318 SINET Japan
17849 335 21 118 Telecommunications Technology
9929 330 218 50 China Netcom Corp.
18101 326 68 26 Reliance Infocom Ltd Internet
17974 321 77 38 PT TELEKOMUNIKASI INDONESIA
17557 316 25 162 Pakistan Telecom
7474 296 211 229 SingTel Optus Pty Ltd
4780 281 226 16 Digital United Inc.
9837 272 78 168 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1465 6263 945 AT&T WorldNet Services
4323 1208 711 236 Time Warner Telecom
721 1015 21954 308 DLA Systems Automation Center
174 984 5787 929 Cogent Communications
6197 983 458 509 BellSouth Network Solutions,
701 956 8065 791 UUNET Technologies, Inc.
18566 909 272 8 Covad Communications
2386 900 506 674 AT&T Data Communications Serv
19029 859 152 115 New Edge Networks
1239 850 2774 603 Sprint
209 692 3607 540 Qwest
20115 665 583 357 Charter Communications
19262 633 1856 154 Verizon Global Networks
22773 632 1480 40 Cox Communications, Inc.
11492 629 81 12 Cable One
6198 582 451 239 BellSouth Network Solutions,
852 573 1088 381 Telus Advanced Communications
855 571 244 64 Canadian Research Network
19916 563 49 54 OLM LLC
3602 523 127 106 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 584 1952 460 UUNET - Commercial IP service
3301 308 1071 293 TeliaNet Sweden
3352 304 1516 30 Ibernet, Internet Access Netw
3320 281 3477 235 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 243 2025 240 DFN-IP service G-WiN
3246 228 487 218 Song Networks
6746 225 86 197 Dynamic Network Technologies,
8708 222 274 205 Romania Data Systems S.A.
1257 204 712 173 SWIPnet Swedish IP Network
8551 187 181 25 Bezeq International
3269 186 1925 70 TELECOM ITALIA
3215 177 1470 85 France Telecom Transpac
5515 176 839 124 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 171 37 12 Bulgarian Telecommunication C
24863 169 38 9 LINKdotNET AS number
3300 166 171 94 AUCS Communications Services
5400 166 328 135 BT Ignite European Backbone
6830 163 733 34 UPC Distribution Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 578 1051 219 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 294 18 7 NSS, S.A.
14117 184 11 6 Telefonica del Sur S.A.
7303 157 74 18 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 118 149 78 AVANTEL, S.A.
21826 116 15 19 INTERCABLE
5639 113 12 9 Telecommunications Services o
6505 108 88 80 Global One Communicaoes Ltda
23216 105 23 10 RAMtelecom Telecomunicaciones
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
14522 96 12 8 SatNet S.A.
25620 96 6 3 COTAS LTDA
11311 95 8 23 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 819 234 The Internet Solution
8452 164 60 7 TEDATA
5536 121 8 18 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
6713 105 103 12 Itissalat Al-MAGHRIB
15475 103 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
24835 61 50 7 RAYA Telecom - Egypt
20928 57 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 21 AS Number for Telecom Algeria
12455 27 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 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
2561 19 6 2 Egyptian Universities Network
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1208 972 Time Warner Telecom
18566 909 901 Covad Communications
9583 853 838 Sify Limited
4134 986 780 CHINANET-BACKBONE
19029 859 744 New Edge Networks
721 1015 707 DLA Systems Automation Center
11492 629 617 Cable One
4755 667 606 Videsh Sanchar Nigam Ltd. Aut
22773 632 592 Cox Communications, Inc.
19916 563 509 OLM LLC
17488 516 509 Hathway IP Over Cable Interne
855 571 507 Canadian Research Network
5668 517 492 CenturyTel Internet Holdings,
19262 633 479 Verizon Global Networks
6197 983 474 BellSouth Network Solutions,
9498 535 462 BHARTI BT INTERNET LTD.
7545 516 447 TPG Internet Pty Ltd
7757 463 444 AT&T Broadband
3602 523 417 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65211 PRIVATE 125.64.3.0/24 4134 CHINANET-BACKBONE
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
65500 PRIVATE 160.254.3.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.40.0/23 11911 The Bank of New York
65500 PRIVATE 160.254.42.0/23 11911 The Bank of New York
65500 PRIVATE 160.254.46.0/23 11911 The Bank of New York
65500 PRIVATE 160.254.48.0/23 11911 The Bank of New York
65500 PRIVATE 160.254.50.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.69.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.78.0/23 11911 The Bank of New York
65500 PRIVATE 160.254.90.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.91.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.92.0/23 11911 The Bank of New York
65500 PRIVATE 160.254.94.0/24 11911 The Bank of New York
65000 PRIVATE 160.254.131.0/24 11911 The Bank of New York
65000 PRIVATE 160.254.132.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.135.0/24 11911 The Bank of New York
65000 PRIVATE 160.254.140.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.154.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.155.0/24 11911 The Bank of New York
65500 PRIVATE 160.254.200.0/24 11911 The Bank of New York
65505 PRIVATE 206.252.200.192/27 8002 Stealth Communicatio
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 /11:23 /12:88
/13:200 /14:352 /15:694 /16:8725 /17:3082 /18:5111
/19:11315 /20:12617 /21:10854 /22:13924 /23:15123 /24:99187
/25:347 /26:235 /27:203 /28:58 /29:24 /30:31
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 892 909 Covad Communications
6197 787 983 BellSouth Network Solutions,
19029 781 859 New Edge Networks
7018 752 1465 AT&T WorldNet Services
9583 673 853 Sify Limited
2386 625 900 AT&T Data Communications Serv
11492 621 629 Cable One
4323 583 1208 Time Warner Telecom
19916 557 563 OLM LLC
4766 506 701 Korea Telecom (KIX)
6198 446 582 BellSouth Network Solutions,
7011 446 516 Citizens Utilities
7757 445 463 AT&T Broadband
855 443 571 Canadian Research Network
5668 402 517 CenturyTel Internet Holdings,
1239 375 850 Sprint
702 369 584 UUNET - Commercial IP service
15270 348 378 PaeTec.net -a division of Pae
6517 340 369 Yipes Communications, Inc.
17849 335 335 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:43 12:1644 13:1 15:12 16:3
17:3 18:4 20:44 24:859 25:1 30:2
32:67 38:199 40:54 44:3 47:3 52:4
55:1 56:3 57:33 58:119 59:162 60:181
61:802 62:762 63:1895 64:3030 65:2205 66:3075
67:596 68:666 69:1429 70:303 71:52 72:605
73:23 74:6 80:753 81:582 82:505 83:371
84:347 85:443 86:334 87:173 88:22 89:33
124:122 125:266 128:143 129:174 130:107 131:314
132:32 133:7 134:146 135:47 136:169 137:64
138:191 139:87 140:476 141:133 142:413 143:145
144:219 145:38 146:304 147:134 148:329 149:185
150:112 151:75 152:61 153:103 154:6 155:184
156:95 157:123 158:159 159:178 160:98 161:68
162:219 163:141 164:173 165:183 166:147 167:238
168:469 169:139 170:321 171:12 172:1 190:30
192:5759 193:3401 194:2511 195:1782 196:762 198:3893
199:3263 200:4176 201:602 202:6431 203:6763 204:3883
205:2096 206:2418 207:2917 208:1993 209:3823 210:1953
211:823 212:1303 213:1474 214:335 215:41 216:4048
217:1167 218:241 219:146 220:642 221:347 222:154
End of report