[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Sat Apr 9 04:18:54 EAT 2005
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 09 Apr, 2005
Analysis Summary
----------------
BGP routing table entries examined: 139674
Prefixes after maximum aggregation: 83474
Unique aggregates announced to Internet: 67116
Total ASes present in the Internet Routing Table: 17729
Origin-only ASes present in the Internet Routing Table: 15381
Origin ASes announcing only one prefix: 7282
Transit ASes present in the Internet Routing Table: 2348
Transit-only ASes present in the Internet Routing Table: 194
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: 38
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1212269440
Equivalent to 72 /8s, 65 /16s and 195 /24s
Percentage of available address space announced: 32.7
Percentage of allocated address space announced: 51.3
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 61623
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27665
Total APNIC prefixes after maximum aggregation: 13807
Prefixes being announced from the APNIC address blocks: 25625
Unique aggregates announced from the APNIC address blocks: 13601
APNIC Region origin ASes present in the Internet Routing Table: 2170
APNIC Region origin ASes announcing only one prefix: 672
APNIC Region transit ASes present in the Internet Routing Table: 331
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 100659328
Equivalent to 5 /8s, 255 /16s and 240 /24s
Percentage of available APNIC address space announced: 37.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575
APNIC Address Blocks 58/7, 60/7, 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: 79734
Total ARIN prefixes after maximum aggregation: 49337
Prefixes being announced from the ARIN address blocks: 61099
Unique aggregates announced from the ARIN address blocks: 21894
ARIN Region origin ASes present in the Internet Routing Table: 9396
ARIN Region origin ASes announcing only one prefix: 3492
ARIN Region transit ASes present in the Internet Routing Table: 886
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 229050368
Equivalent to 13 /8s, 167 /16s and 8 /24s
Percentage of available ARIN address space announced: 65.0
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 22768
Total RIPE prefixes after maximum aggregation: 16764
Prefixes being announced from the RIPE address blocks: 19187
Unique aggregates announced from the RIPE address blocks: 13327
RIPE Region origin ASes present in the Internet Routing Table: 5289
RIPE Region origin ASes announcing only one prefix: 2902
RIPE Region transit ASes present in the Internet Routing Table: 966
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 154207424
Equivalent to 9 /8s, 49 /16s and 4 /24s
Percentage of available RIPE address space announced: 54.1
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
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8378
Total LACNIC prefixes after maximum aggregation: 2926
Prefixes being announced from the LACNIC address blocks: 6986
Unique aggregates announced from the LACNIC address blocks: 4018
LACNIC Region origin ASes present in the Internet Routing Table: 609
LACNIC Region origin ASes announcing only one prefix: 187
LACNIC Region transit ASes present in the Internet Routing Table: 111
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 18041856
Equivalent to 1 /8s, 19 /16s and 76 /24s
Percentage of available LACNIC address space announced: 53.8
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1087
Total AfriNIC prefixes after maximum aggregation: 640
Prefixes being announced from the AfriNIC address blocks: 916
Unique aggregates announced from the AfriNIC address blocks: 732
AfriNIC Region origin ASes present in the Internet Routing Table: 84
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2198272
Equivalent to 0 /8s, 33 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 13.1
AfriNIC AS Blocks ERX transfers
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 781 1193 555 Telstra Pty Ltd
9583 584 44 11 Sify Limited
4755 488 211 112 Videsh Sanchar Nigam Ltd. Aut
4134 430 1943 104 CHINANET-BACKBONE
9443 370 77 76 Primus Telecommunications
4766 366 1699 151 Korea Telecom (KIX)
7545 365 54 66 TPG Internet Pty Ltd
2907 348 1839 322 SINET Japan
17557 334 24 151 Pakistan Telecom
10036 308 28 281 C&M Communication Co. Ltd.
7474 296 268 214 SingTel Optus Pty Ltd
4802 282 47 166 Wantree Development
9498 261 82 53 BHARTI BT INTERNET LTD.
2764 251 238 200 AAPT Limited
703 250 273 205 UUNET - Commercial IP service
9929 246 94 19 China Netcom Corp.
4808 231 168 129 CNCGROUP IP network: China169
18302 218 34 128 SK Global co., Ltd
17488 213 15 11 Hathway IP Over Cable Interne
17974 193 47 11 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1408 6477 922 AT&T WorldNet Services
174 1065 5544 905 Cogent Communications
721 1019 15619 312 DLA Systems Automation Center
701 966 8209 821 UUNET Technologies, Inc.
4323 961 635 212 Time Warner Telecom
1239 874 2864 627 Sprint
6197 838 365 384 BellSouth Network Solutions,
2386 817 528 616 AT&T Data Communications Serv
18566 788 224 7 Covad Communications
209 624 3372 479 Qwest
20115 599 495 310 Charter Communications
852 534 1069 393 Telus Advanced Communications
3356 524 10745 394 Level 3 Communications, LLC
3602 507 119 92 Sprint Canada, Inc.
3561 506 2199 384 Savvis
27364 504 43 18 Armstrong Cable Services
5668 482 115 25 CenturyTel Internet Holdings,
22773 471 1180 20 Cox Communications, Inc.
7132 427 8385 370 SBC Internet Services
6198 419 372 193 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 524 1674 447 UUNET - Commercial IP service
3320 293 2057 229 Deutsche Telekom AG
3301 286 902 276 TeliaNet Sweden
680 252 2025 237 DFN-IP service G-WiN
8220 239 309 235 COLT Telecommunications
3246 206 388 201 Song Networks
8708 194 243 177 Romania Data Systems S.A.
786 174 1776 174 The JANET IP Service
5515 174 743 124 Sonera Solution Autonomous Sy
1257 172 587 163 SWIPnet Swedish IP Network
719 153 288 96 LANLINK autonomous system
3300 148 168 84 AUCS Communications Services
6746 139 44 121 Dynamic Network Technologies,
3269 138 1273 58 TELECOM ITALIA
25186 136 137 94 France Telecom Transpac's Tra
5400 126 236 112 BT Ignite European Backbone
2856 115 1948 104 BTnet UK Regional network
3215 114 963 68 France Telecom Transpac
3303 106 471 101 Swisscom Ltd
5511 106 157 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 349 527 145 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 216 99 52 Servicios Alestra S.A de C.V
6147 204 100 22 Telefonica Del Peru
19632 190 14 7 Metropolis Intercom S.A.
7303 156 68 25 Telecom Argentina Stet-France
11664 155 19 23 Keytech SA
22047 122 96 6 VTR PUNTO NET S.A.
6503 106 146 75 AVANTEL, S.A.
6505 105 84 68 Global One Communicaoes Ltda
13999 103 52 9 Mega Cable S.A. de C.V.
18822 103 6 15 TELEFONICA MANQUEHUE
11556 99 49 5 Cable-Wireless Panama
19169 95 6 16 Telconet
14117 86 6 3 Telefonica del Sur S.A.
5639 84 12 9 Telecommunications Services o
10481 82 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
22927 79 65 20 TELEFONICA DE ARGENTINA
23216 78 23 15 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
2018 90 295 87 Tertiary Education Network
5536 85 13 16 Internet Egypt Network
2905 67 264 61 The Internetworking Company o
8452 54 16 3 TEDATA
24835 53 28 4 RAYA Telecom - Egypt
5713 35 141 28 Telkom SA Ltd
6713 29 46 8 Itissalat Al-MAGHRIB
9129 27 2 2 UUNET Kenya
12455 24 5 4 Jambonet Autonomous system
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
7460 17 3 4 LIA Internet Access
12258 17 3 11 Vodacom Internet Company
15808 16 1 1 Communication Solutions Ltd i
21491 14 1 1 UTL On-line is RF broadband I
17148 13 1 7 First National Bank
11845 12 9 11 Data Pro Business Online
17400 12 1 1 Pacomm-LDA
21280 12 1 2 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65531 *
18566 788 781 Covad Communications
4323 961 749 Time Warner Telecom
721 1019 707 DLA Systems Automation Center
9583 584 573 Sify Limited
27364 504 486 Armstrong Cable Services
5668 482 457 CenturyTel Internet Holdings,
6197 838 454 BellSouth Network Solutions,
22773 471 451 Cox Communications, Inc.
3602 507 415 Sprint Canada, Inc.
4755 488 376 Videsh Sanchar Nigam Ltd. Aut
4134 430 326 CHINANET-BACKBONE
6140 395 324 ImpSat
6467 345 313 E.Spire Communications, Inc.
7545 365 299 TPG Internet Pty Ltd
9443 370 294 Primus Telecommunications
20115 599 289 Charter Communications
6478 378 288 AT&T Worldnet Services
376 391 276 Reseau Interordinateurs Scien
16814 266 259 NSS, S.A.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication
35884 UNALLOCATED 38.118.171.0/24 10912 InterNAP Network Ser
35894 UNALLOCATED 63.118.207.0/24 6128 Cablevision Systems
35884 UNALLOCATED 64.74.164.0/24 10912 InterNAP Network Ser
35884 UNALLOCATED 64.74.165.0/24 10912 InterNAP Network Ser
35884 UNALLOCATED 64.74.166.0/24 10912 InterNAP Network Ser
35892 UNALLOCATED 64.124.52.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 64.125.105.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 64.125.106.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 64.125.110.0/24 6461 AboveNet Communicati
35890 UNALLOCATED 64.193.55.0/24 209 Qwest
35868 UNALLOCATED 65.88.163.192/26 6395 Broadwing Communicat
35871 UNALLOCATED 66.7.178.0/23 6517 Yipes Communications
35868 UNALLOCATED 68.143.179.64/26 6395 Broadwing Communicat
33507 UNALLOCATED 70.183.41.0/24 15218 COX Communications
35895 UNALLOCATED 72.5.143.0/24 10910 InterNAP Network Ser
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
35857 UNALLOCATED 199.107.188.0/24 4323 Time Warner Telecom
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
35875 UNALLOCATED 204.117.76.0/24 1239 Sprint
35892 UNALLOCATED 208.184.1.0/24 6461 AboveNet Communicati
35850 UNALLOCATED 209.139.6.0/24 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.22.0/23 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.56.0/22 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.108.0/23 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.110.0/24 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.180.0/24 3356 Level 3 Communicatio
35892 UNALLOCATED 209.249.93.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 209.249.94.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 209.249.95.0/24 6461 AboveNet Communicati
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
172.32.0.0/24 7011 Citizens Utilities
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:2 /10:8 /11:13 /12:60
/13:127 /14:260 /15:472 /16:7497 /17:2028 /18:3414
/19:7717 /20:8814 /21:7649 /22:10537 /23:11751 /24:78503
/25:252 /26:228 /27:130 /28:68 /29:37 /30:61
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 772 788 Covad Communications
6197 683 838 BellSouth Network Solutions,
7018 610 1408 AT&T WorldNet Services
2386 572 817 AT&T Data Communications Serv
27364 491 504 Armstrong Cable Services
9583 406 584 Sify Limited
4323 402 961 Time Warner Telecom
5668 402 482 CenturyTel Internet Holdings,
1239 348 874 Sprint
702 327 524 UUNET - Commercial IP service
10036 308 308 C&M Communication Co. Ltd.
6198 300 419 BellSouth Network Solutions,
6517 288 311 Yipes Communications, Inc.
7011 270 318 Citizens Utilities
15270 251 269 PaeTec.net -a division of Pae
3320 245 293 Deutsche Telekom AG
20115 244 599 Charter Communications
23126 239 250 KMC Telecom, Inc
22773 236 471 Cox Communications, Inc.
11456 228 268 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 10:6 12:1516 13:1 15:9
16:2 17:3 18:4 20:4 24:794 28:2
31:1 32:64 33:4 38:104 40:53 44:7
47:2 50:1 52:11 54:1 55:3 56:3
57:23 58:37 59:22 60:17 61:738 62:574
63:1879 64:2648 65:2079 66:2734 67:519 68:508
69:961 70:83 71:6 72:128 80:535 81:528
82:369 83:225 84:137 85:160 128:141 129:160
130:89 131:281 132:33 133:1 134:145 135:41
136:191 137:67 138:164 139:56 140:193 141:103
142:137 143:130 144:172 145:32 146:272 147:102
148:293 149:169 150:97 151:63 152:107 153:87
154:4 155:144 156:69 157:89 158:167 159:172
160:73 161:60 162:199 163:83 164:203 165:159
166:154 167:228 168:416 169:137 170:311 171:8
172:1 192:5674 193:3146 194:2326 195:1536 196:638
198:3934 199:3268 200:4010 201:113 202:5443 203:6136
204:3818 205:2006 206:2439 207:2731 208:2075 209:3278
210:1675 211:759
End of report
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