Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Mar 17 18:06:56 UTC 2006
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 18 Mar, 2006
Analysis Summary
----------------
BGP routing table entries examined: 184375
Prefixes after maximum aggregation: 102184
Unique aggregates announced to Internet: 89838
Total ASes present in the Internet Routing Table: 21772
Origin-only ASes present in the Internet Routing Table: 18926
Origin ASes announcing only one prefix: 8989
Transit ASes present in the Internet Routing Table: 2846
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 76
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1511349856
Equivalent to 90 /8s, 21 /16s and 94 /24s
Percentage of available address space announced: 40.8
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 90192
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38802
Total APNIC prefixes after maximum aggregation: 16257
Prefixes being announced from the APNIC address blocks: 36601
Unique aggregates announced from the APNIC address blocks: 17814
APNIC Region origin ASes present in the Internet Routing Table: 2508
APNIC Region origin ASes announcing only one prefix: 704
APNIC Region transit ASes present in the Internet Routing Table: 387
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 217698272
Equivalent to 12 /8s, 249 /16s and 207 /24s
Percentage of available APNIC address space announced: 68.1
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: 96511
Total ARIN prefixes after maximum aggregation: 57019
Prefixes being announced from the ARIN address blocks: 75675
Unique aggregates announced from the ARIN address blocks: 28886
ARIN Region origin ASes present in the Internet Routing Table: 10591
ARIN Region origin ASes announcing only one prefix: 3954
ARIN Region transit ASes present in the Internet Routing Table: 972
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 291281408
Equivalent to 17 /8s, 92 /16s and 154 /24s
Percentage of available ARIN address space announced: 72.3
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: 36599
Total RIPE prefixes after maximum aggregation: 24490
Prefixes being announced from the RIPE address blocks: 33620
Unique aggregates announced from the RIPE address blocks: 22716
RIPE Region origin ASes present in the Internet Routing Table: 7783
RIPE Region origin ASes announcing only one prefix: 4072
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: 242361344
Equivalent to 14 /8s, 114 /16s and 36 /24s
Percentage of available RIPE address space announced: 72.2
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: 10396
Total LACNIC prefixes after maximum aggregation: 3526
Prefixes being announced from the LACNIC address blocks: 8561
Unique aggregates announced from the LACNIC address blocks: 5166
LACNIC Region origin ASes present in the Internet Routing Table: 676
LACNIC Region origin ASes announcing only one prefix: 216
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 25883136
Equivalent to 1 /8s, 138 /16s and 242 /24s
Percentage of available LACNIC address space announced: 38.6
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: 1986
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1362
Unique aggregates announced from the AfriNIC address blocks: 909
AfriNIC Region origin ASes present in the Internet Routing Table: 147
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3927040
Equivalent to 0 /8s, 59 /16s and 236 /24s
Percentage of available AfriNIC address space announced: 11.7
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 990 6937 210 CHINANET-BACKBONE
4755 877 258 71 Videsh Sanchar Nigam Ltd. Aut
9583 870 109 16 Sify Limited
4766 677 3923 302 Korea Telecom (KIX)
1221 651 1428 470 Telstra Pty Ltd
9498 559 212 72 BHARTI BT INTERNET LTD.
7545 519 108 70 TPG Internet Pty Ltd
17488 516 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 414 95 82 Primus Telecommunications
4802 370 75 165 Wantree Development
2907 336 1749 312 SINET Japan
17974 334 89 32 PT TELEKOMUNIKASI INDONESIA
9929 333 218 53 China Netcom Corp.
17557 319 25 162 Pakistan Telecom
18101 319 68 23 Reliance Infocom Ltd Internet
17849 314 20 103 Telecommunications Technology
7474 304 211 232 SingTel Optus Pty Ltd
4780 279 226 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 1498 6264 965 AT&T WorldNet Services
4323 1232 714 239 Time Warner Telecom
721 1009 21946 307 DLA Systems Automation Center
6197 1004 619 468 BellSouth Network Solutions,
174 966 5782 913 Cogent Communications
701 946 8064 782 UUNET Technologies, Inc.
18566 920 272 8 Covad Communications
2386 870 520 662 AT&T Data Communications Serv
1239 852 2789 601 Sprint
19029 781 152 112 New Edge Networks
209 696 3607 540 Qwest
20115 671 586 361 Charter Communications
19262 664 1955 153 Verizon Global Networks
22773 641 1480 40 Cox Communications, Inc.
11492 636 86 20 Cable One
7011 602 209 391 Citizens Utilities
6198 579 502 237 BellSouth Network Solutions,
852 577 1088 383 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 546 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 584 1951 459 UUNET - Commercial IP service
3352 307 1564 31 Ibernet, Internet Access Netw
3301 306 1071 291 TeliaNet Sweden
8220 289 473 268 COLT Telecommunications
3320 280 3477 232 Deutsche Telekom AG
680 244 2025 241 DFN-IP service G-WiN
3246 231 488 221 Song Networks
6746 225 88 198 Dynamic Network Technologies,
8708 218 276 203 Romania Data Systems S.A.
8551 202 197 23 Bezeq International
1257 197 710 172 SWIPnet Swedish IP Network
24863 196 40 9 LINKdotNET AS number
3269 194 2085 75 TELECOM ITALIA
3215 183 1518 86 France Telecom Transpac
786 173 1794 173 The JANET IP Service
8866 169 37 13 Bulgarian Telecommunication C
5400 167 328 136 BT Ignite European Backbone
6830 166 765 35 UPC Distribution Services
9121 162 931 27 TTnet Autonomous System
5515 161 839 120 Sonera Solution Autonomous Sy
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 596 1050 225 UniNet S.A. de C.V.
22047 372 142 10 VTR PUNTO NET S.A.
11172 316 111 80 Servicios Alestra S.A de C.V
16814 289 18 7 NSS, S.A.
14117 184 11 6 Telefonica del Sur S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 132 80 4 Cable-Wireless Panama
5639 127 12 9 Telecommunications Services o
19169 123 8 33 Telconet
6503 122 149 75 AVANTEL, S.A.
10481 121 48 8 Prima S.A.
21826 120 16 19 INTERCABLE
6505 106 88 78 Global One Communicaoes Ltda
14522 100 13 5 SatNet S.A.
23216 100 20 7 RAMtelecom Telecomunicaciones
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
19429 95 52 42 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 803 233 The Internet Solution
8452 162 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 124 314 105 Tertiary Education Network
15475 123 84 4 Nile Online
5536 122 8 18 Internet Egypt Network
2905 74 155 67 The Internetworking Company o
24835 62 50 7 RAYA Telecom - Egypt
20928 58 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
23889 26 8 11 MAURITIUS TELECOM
8524 25 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
2561 19 6 2 Egyptian Universities Network
21280 19 4 4 Swift Global Kenya Ltd.Is an
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1232 993 Time Warner Telecom
18566 920 912 Covad Communications
9583 870 854 Sify Limited
4755 877 806 Videsh Sanchar Nigam Ltd. Aut
4134 990 780 CHINANET-BACKBONE
721 1009 702 DLA Systems Automation Center
19029 781 669 New Edge Networks
11492 636 616 Cable One
22773 641 601 Cox Communications, Inc.
6197 1004 536 BellSouth Network Solutions,
19262 664 511 Verizon Global Networks
19916 563 509 OLM LLC
17488 516 509 Hathway IP Over Cable Interne
5668 523 498 CenturyTel Internet Holdings,
9498 559 487 BHARTI BT INTERNET LTD.
855 546 482 Canadian Research Network
7757 473 454 AT&T Broadband
7545 519 449 TPG Internet Pty Ltd
3602 535 426 Sprint Canada, Inc.
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65211 PRIVATE 61.139.76.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 61.139.77.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 61.188.9.0/27 4134 CHINANET-BACKBONE
65211 PRIVATE 61.188.176.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 61.188.177.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 61.188.178.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 61.188.179.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.0.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.1.0/27 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.2.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.3.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.6.0/27 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.12.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.13.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.14.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.15.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.25.0/25 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.25.128/25 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.30.0/23 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.32.0/21 4134 CHINANET-BACKBONE
65211 PRIVATE 125.64.40.0/26 4134 CHINANET-BACKBONE
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
65211 PRIVATE 202.98.123.0/24 4134 CHINANET-BACKBONE
24294 UNALLOCATED 202.173.112.0/20 2514 NTT PC Communication
65505 PRIVATE 206.252.200.192/27 8002 Stealth Communicatio
65211 PRIVATE 218.6.168.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.169.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.170.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.171.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.172.0/25 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.172.128/25 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.173.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.174.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.175.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.196.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.197.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.6.198.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.89.166.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.89.167.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.89.168.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.89.169.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.89.170.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.89.171.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 218.89.172.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.0.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.1.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.2.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.3.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.4.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.5.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.6.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.7.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.8.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.9.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.10.0/27 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.11.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.12.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.13.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.14.0/23 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.17.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.18.0/23 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.20.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.21.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.22.0/25 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.22.128/26 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.22.192/26 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.23.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.24.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.25.0/25 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.25.128/25 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.26.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.27.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.28.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 221.236.29.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 222.211.63.0/24 4134 CHINANET-BACKBONE
65211 PRIVATE 222.213.0.0/24 4134 CHINANET-BACKBONE
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
192.44.0.0/24 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 /11:25 /12:87
/13:198 /14:353 /15:696 /16:8750 /17:3119 /18:5151
/19:11423 /20:12825 /21:10991 /22:14155 /23:15293 /24:100319
/25:341 /26:247 /27:214 /28:63 /29:25 /30:33
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 903 920 Covad Communications
6197 794 1004 BellSouth Network Solutions,
7018 792 1498 AT&T WorldNet Services
19029 709 781 New Edge Networks
9583 689 870 Sify Limited
11492 627 636 Cable One
4323 595 1232 Time Warner Telecom
2386 594 870 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 516 602 Citizens Utilities
4766 486 677 Korea Telecom (KIX)
7757 455 473 AT&T Broadband
6198 439 579 BellSouth Network Solutions,
855 420 546 Canadian Research Network
5668 404 523 CenturyTel Internet Holdings,
1239 380 852 Sprint
702 368 584 UUNET - Commercial IP service
15270 354 384 PaeTec.net -a division of Pae
6517 346 376 Yipes Communications, Inc.
22773 336 641 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1621 13:1 15:12 16:3
17:3 18:4 20:43 24:873 25:1 30:2
32:67 38:206 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:149 59:172 60:175
61:818 62:792 63:1907 64:3112 65:2223 66:3070
67:610 68:678 69:1405 70:312 71:61 72:647
73:23 74:23 80:753 81:598 82:535 83:362
84:339 85:473 86:374 87:256 88:47 89:71
124:187 125:279 128:161 129:174 130:102 131:318
132:33 133:8 134:147 135:47 136:175 137:65
138:191 139:74 140:488 141:137 142:393 143:156
144:231 145:40 146:318 147:134 148:338 149:188
150:114 151:78 152:64 153:98 154:6 155:194
156:94 157:119 158:166 159:167 160:88 161:72
162:227 163:143 164:178 165:175 166:152 167:239
168:478 169:139 170:320 171:12 172:1 190:39
192:5767 193:3401 194:2546 195:1797 196:779 198:3878
199:3262 200:4243 201:653 202:6547 203:6871 204:3919
205:2092 206:2423 207:2931 208:2022 209:3749 210:1933
211:810 212:1272 213:1481 214:341 215:42 216:4072
217:1162 218:257 219:179 220:644 221:373 222:160
End of report
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