Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 14 18:02:29 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 15 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 186541
Prefixes after maximum aggregation: 103090
Unique aggregates announced to Internet: 91365
Total ASes present in the Internet Routing Table: 21944
Origin-only ASes present in the Internet Routing Table: 19073
Origin ASes announcing only one prefix: 9095
Transit ASes present in the Internet Routing Table: 2871
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1505238112
Equivalent to 89 /8s, 184 /16s and 28 /24s
Percentage of available address space announced: 40.6
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 91896
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39143
Total APNIC prefixes after maximum aggregation: 16403
Prefixes being announced from the APNIC address blocks: 36860
Unique aggregates announced from the APNIC address blocks: 18121
APNIC Region origin ASes present in the Internet Routing Table: 2539
APNIC Region origin ASes announcing only one prefix: 721
APNIC Region transit ASes present in the Internet Routing Table: 388
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 221865952
Equivalent to 13 /8s, 57 /16s and 103 /24s
Percentage of available APNIC address space announced: 69.4
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: 97218
Total ARIN prefixes after maximum aggregation: 57434
Prefixes being announced from the ARIN address blocks: 76326
Unique aggregates announced from the ARIN address blocks: 29402
ARIN Region origin ASes present in the Internet Routing Table: 10637
ARIN Region origin ASes announcing only one prefix: 3988
ARIN Region transit ASes present in the Internet Routing Table: 986
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 294309632
Equivalent to 17 /8s, 138 /16s and 207 /24s
Percentage of available ARIN address space announced: 73.1
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: 37181
Total RIPE prefixes after maximum aggregation: 24774
Prefixes being announced from the RIPE address blocks: 34151
Unique aggregates announced from the RIPE address blocks: 23113
RIPE Region origin ASes present in the Internet Routing Table: 7876
RIPE Region origin ASes announcing only one prefix: 4121
RIPE Region transit ASes present in the Internet Routing Table: 1303
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 246193024
Equivalent to 14 /8s, 172 /16s and 155 /24s
Percentage of available RIPE address space announced: 73.4
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: 10934
Total LACNIC prefixes after maximum aggregation: 3587
Prefixes being announced from the LACNIC address blocks: 9091
Unique aggregates announced from the LACNIC address blocks: 5377
LACNIC Region origin ASes present in the Internet Routing Table: 675
LACNIC Region origin ASes announcing only one prefix: 219
LACNIC Region transit ASes present in the Internet Routing Table: 128
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 26366464
Equivalent to 1 /8s, 146 /16s and 82 /24s
Percentage of available LACNIC address space announced: 39.3
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: 2051
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1447
Unique aggregates announced from the AfriNIC address blocks: 944
AfriNIC Region origin ASes present in the Internet Routing Table: 150
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4034304
Equivalent to 0 /8s, 61 /16s and 143 /24s
Percentage of available AfriNIC address space announced: 12.0
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 1001 6931 210 CHINANET-BACKBONE
4755 898 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 869 109 16 Sify Limited
4766 682 3924 303 Korea Telecom (KIX)
1221 621 1557 475 Telstra Pty Ltd
9498 570 212 72 BHARTI BT INTERNET LTD.
7545 528 108 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 451 111 82 Primus Telecommunications
4802 382 81 176 Wantree Development
18101 337 69 25 Reliance Infocom Ltd Internet
2907 333 1732 309 SINET Japan
17849 331 21 111 Telecommunications Technology
9929 322 220 56 China Netcom Corp.
17557 315 27 157 Pakistan Telecom
17974 304 118 25 PT TELEKOMUNIKASI INDONESIA
7474 297 210 228 SingTel Optus Pty Ltd
9800 270 410 67 CHINA UNICOM
4837 267 2890 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1508 6256 972 AT&T WorldNet Services
4323 1259 732 252 Time Warner Telecom
721 1013 21961 306 DLA Systems Automation Center
6197 1009 619 471 BellSouth Network Solutions,
174 958 5783 906 Cogent Communications
701 937 8047 778 UUNET Technologies, Inc.
18566 931 272 8 Covad Communications
2386 875 537 667 AT&T Data Communications Serv
19029 868 151 111 New Edge Networks
1239 851 2804 604 Sprint
209 712 3614 557 Qwest
20115 675 592 363 Charter Communications
19262 672 1984 158 Verizon Global Networks
22773 645 1488 42 Cox Communications, Inc.
7011 630 217 411 Citizens Utilities
11492 627 86 20 Cable One
6198 591 534 236 BellSouth Network Solutions,
852 586 1089 388 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 560 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 453 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 293 474 271 COLT Telecommunications
3320 284 3988 235 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 231 504 221 Song Networks
6746 227 89 201 Dynamic Network Technologies,
8708 217 275 200 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
1257 198 711 173 SWIPnet Swedish IP Network
3269 195 2070 74 TELECOM ITALIA
3215 192 1614 90 France Telecom Transpac
8866 175 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 171 363 140 BT Ignite European Backbone
6830 167 765 35 UPC Distribution Services
30890 162 15 61 SC Kappa Invexim SRL
3300 160 172 90 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 699 1067 228 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 321 110 84 Servicios Alestra S.A de C.V
16814 308 20 8 NSS, S.A.
14117 189 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 132 80 4 Cable-Wireless Panama
21826 130 16 21 INTERCABLE
5639 129 12 9 Telecommunications Services o
19169 124 8 30 Telconet
6503 121 149 74 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
18822 114 8 10 TELEFONICA MANQUEHUE
6505 106 88 78 Global One Communicaoes Ltda
7910 106 7 10 ANDINET ON LINE
23216 100 21 8 RAMtelecom Telecomunicaciones
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 803 232 The Internet Solution
8452 169 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
15475 88 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
5713 39 294 35 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 7 20 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 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 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1259 1007 Time Warner Telecom
18566 931 923 Covad Communications
9583 869 853 Sify Limited
4755 898 827 Videsh Sanchar Nigam Ltd. Aut
4134 1001 791 CHINANET-BACKBONE
19029 868 757 New Edge Networks
721 1013 707 DLA Systems Automation Center
11492 627 607 Cable One
22773 645 603 Cox Communications, Inc.
6197 1009 538 BellSouth Network Solutions,
19262 672 514 Verizon Global Networks
19916 563 509 OLM LLC
5668 535 505 CenturyTel Internet Holdings,
9498 570 498 BHARTI BT INTERNET LTD.
855 560 496 Canadian Research Network
17488 501 494 Hathway IP Over Cable Interne
8151 699 471 UniNet S.A. de C.V.
7545 528 458 TPG Internet Pty Ltd
7757 477 458 AT&T Broadband
3602 539 430 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
43144 UNALLOCATED 12.149.157.0/24 7018 AT&T WorldNet Servic
64545 PRIVATE 38.99.133.0/24 174 Cogent Communication
64501 RESERVED 68.142.125.0/24 22822 Limelight Networks,
38964 UNALLOCATED 85.192.62.0/23 12695 JSC "Digital Network
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24408 UNALLOCATED 203.119.26.0/24 9800 CHINA UNICOM
24408 UNALLOCATED 203.119.27.0/24 9800 CHINA UNICOM
24408 UNALLOCATED 203.119.28.0/24 9800 CHINA UNICOM
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
38964 UNALLOCATED 213.219.225.0/24 12695 JSC "Digital Network
38964 UNALLOCATED 213.248.22.0/24 12695 JSC "Digital Network
65412 PRIVATE 221.123.128.0/20 24405 Beijing CJWX Communi
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
192.84.205.0/24 719 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 /8:17 /9:9 /10:9 /11:26 /12:88
/13:200 /14:357 /15:695 /16:8768 /17:3171 /18:5226
/19:11530 /20:12966 /21:11215 /22:14383 /23:15498 /24:101352
/25:367 /26:252 /27:217 /28:60 /29:69 /30:33
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 914 931 Covad Communications
19029 800 868 New Edge Networks
6197 797 1009 BellSouth Network Solutions,
7018 797 1508 AT&T WorldNet Services
9583 698 869 Sify Limited
11492 618 627 Cable One
4323 606 1259 Time Warner Telecom
2386 595 875 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 540 630 Citizens Utilities
4766 491 682 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 442 591 BellSouth Network Solutions,
855 434 560 Canadian Research Network
5668 415 535 CenturyTel Internet Holdings,
1239 379 851 Sprint
15270 371 402 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 352 380 Yipes Communications, Inc.
8151 343 699 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1619 13:1 15:12 16:3
17:3 18:4 20:43 24:883 25:1 30:2
32:66 38:212 40:54 44:3 47:6 52:4
55:1 56:3 57:33 58:147 59:195 60:181
61:838 62:785 63:1911 64:3116 65:2236 66:3074
67:628 68:685 69:1478 70:329 71:76 72:684
73:23 74:29 80:774 81:612 82:575 83:379
84:377 85:518 86:344 87:309 88:66 89:135
124:218 125:367 128:158 129:176 130:106 131:317
132:31 133:8 134:150 135:46 136:177 137:70
138:199 139:66 140:467 141:134 142:394 143:161
144:227 145:42 146:325 147:133 148:326 149:189
150:114 151:80 152:64 153:107 154:6 155:197
156:96 157:130 158:165 159:169 160:87 161:72
162:253 163:146 164:179 165:180 166:166 167:243
168:478 169:134 170:327 171:12 172:1 183:1
190:95 192:5765 193:3388 194:2577 195:1821 196:843
198:3889 199:3257 200:4324 201:827 202:6555 203:6850
204:3897 205:2109 206:2419 207:2927 208:2037 209:3798
210:1915 211:701 212:1250 213:1459 214:340 215:41
216:4119 217:1169 218:251 219:179 220:653 221:355
222:144
End of report
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