[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Sat Feb 26 04:07:37 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 26 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156548
Prefixes after maximum aggregation: 91690
Unique aggregates announced to Internet: 75829
Total ASes present in the Internet Routing Table: 19031
Origin-only ASes present in the Internet Routing Table: 16549
Origin ASes announcing only one prefix: 7725
Transit ASes present in the Internet Routing Table: 2482
Transit-only ASes present in the Internet Routing Table: 79
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: 11
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1379580644
Equivalent to 82 /8s, 58 /16s and 186 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72821
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31231
Total APNIC prefixes after maximum aggregation: 15140
Prefixes being announced from the APNIC address blocks: 29261
Unique aggregates announced from the APNIC address blocks: 15379
APNIC Region origin ASes present in the Internet Routing Table: 2215
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 325
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 175092096
Equivalent to 10 /8s, 111 /16s and 177 /24s
Percentage of available APNIC address space announced: 65.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
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: 87346
Total ARIN prefixes after maximum aggregation: 52946
Prefixes being announced from the ARIN address blocks: 66670
Unique aggregates announced from the ARIN address blocks: 24362
ARIN Region origin ASes present in the Internet Routing Table: 9886
ARIN Region origin ASes announcing only one prefix: 3580
ARIN Region transit ASes present in the Internet Routing Table: 947
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 239662592
Equivalent to 14 /8s, 72 /16s and 246 /24s
Percentage of available ARIN address space announced: 71.4
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
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, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 29717
Total RIPE prefixes after maximum aggregation: 20476
Prefixes being announced from the RIPE address blocks: 26601
Unique aggregates announced from the RIPE address blocks: 17648
RIPE Region origin ASes present in the Internet Routing Table: 6338
RIPE Region origin ASes announcing only one prefix: 3347
RIPE Region transit ASes present in the Internet Routing Table: 1080
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 193123920
Equivalent to 11 /8s, 130 /16s and 214 /24s
Percentage of available RIPE address space announced: 67.7
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
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: 6885
Total LACNIC prefixes after maximum aggregation: 2417
Prefixes being announced from the LACNIC address blocks: 6798
Unique aggregates announced from the LACNIC address blocks: 4016
LACNIC Region origin ASes present in the Internet Routing Table: 421
LACNIC Region origin ASes announcing only one prefix: 126
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17608192
Equivalent to 1 /8s, 12 /16s and 174 /24s
Percentage of available LACNIC address space announced: 52.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1358
Total AfriNIC prefixes after maximum aggregation: 711
Prefixes being announced from the AfriNIC address blocks: 908
Unique aggregates announced from the AfriNIC address blocks: 716
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2177280
Equivalent to 0 /8s, 33 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 13.0
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 886 4712 174 Data Communications Bureau
1221 790 1187 562 Telstra Pty Ltd
9583 601 49 18 Satyam Infoway Ltd.,
4766 593 3416 284 Korea Internet Exchange for "
4755 469 241 100 Videsh Sanchar Nigam Ltd. Aut
7545 462 74 158 TPG Internet Pty Ltd
17676 403 6060 70 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 353 165 37 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 324 24 149 Pakistan Telecom
10036 296 27 269 C&M Communication Co. Ltd.
7474 285 283 207 Optus Communications Pty Ltd
703 273 355 214 UUNET
2764 258 238 206 connect.com.au pty ltd
9498 244 81 53 BHARTI BT INTERNET LTD.
9800 240 395 71 CHINA UNICOM
4808 237 170 129 CHINANET core WAN North
4802 231 28 140 Wantree Development
17974 229 63 24 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1461 6609 971 AT&T WorldNet Services
721 1170 21835 318 DLA Systems Automation Center
701 1033 8309 878 UUNET Technologies, Inc.
4323 1031 668 221 Time Warner Telecom
1239 923 2871 654 Sprint
6197 867 379 405 BellSouth Network Solutions,
2386 823 496 611 AT&T Data Communications Serv
18566 767 208 6 Covad Communications
174 711 5521 615 PSINet Inc.
209 648 3466 499 Qwest
3356 591 10867 442 Level 3 Communications, LLC
20115 579 478 300 Charter Communications
3561 560 2374 416 Cable & Wireless USA
852 527 1126 399 Telus Advanced Communications
3602 501 120 93 Sprint Canada, Inc.
6478 494 822 104 AT&T Worldnet Services
22773 474 1090 24 Cox Communications, Inc. Atla
6198 468 567 189 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 451 91 20 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 2006 500 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 289 1112 277 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 229 476 223 Song Networks
8708 219 120 197 Romania Data Systems S.A.
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 709 174 SWIPnet Swedish IP Network
3215 204 1034 78 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
6746 178 47 142 Dynamic Network Technologies,
786 176 1794 176 The JANET IP Service
8866 176 20 16 Bulgarian Telecommunication C
3300 164 185 84 AUCS Communications Services
3269 163 1424 72 TELECOM ITALIA
719 161 322 103 LANLINK autonomous system
25186 141 138 99 France Telecom Transpac's Tra
5400 139 234 123 BT Ignite European Backbone
9121 137 227 19 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 361 140 70 ImpSat
8151 335 501 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 220 99 54 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 150 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 118 146 80 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 90 52 9 Mega Cable S.A. de C.V.
11311 88 8 23 Sinectis S.A.
6535 87 7 23 Chilesat Servicios Empresari
14420 87 6 42 ANDINATEL S.A.
5639 82 8 8 Telecommunications Services o
10481 81 32 7 Prima S.A.
4270 77 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 85 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
24835 53 34 6 RAYA Telecom - Egypt
8452 42 20 5 TEDATA
6713 35 54 9 Itissalat Al-MAGHRIB
11845 35 9 11 Data Pro Business Online
9129 30 3 2 UUNET Kenya
12455 30 6 7 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 17 10 11 SONATEL-AS Autonomous System
21280 17 2 3 Swift Global Kenya Ltd.Is an
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1170 852 DLA Systems Automation Center
4323 1031 810 Time Warner Telecom
18566 767 761 Covad Communications
4134 886 712 Data Communications Bureau
9583 601 583 Satyam Infoway Ltd.,
6197 867 462 BellSouth Network Solutions,
22773 474 450 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 451 431 Century Telephone
3602 501 408 Sprint Canada, Inc.
6478 494 390 AT&T Worldnet Services
4755 469 369 Videsh Sanchar Nigam Ltd. Aut
17676 403 333 XTAGE CORPORATION
6467 361 328 E.Spire Communications, Inc.
9929 353 316 China Netcom Corp.
4766 593 309 Korea Internet Exchange for "
7545 462 304 TPG Internet Pty Ltd
9443 374 295 Primus Telecommunications
6140 361 291 ImpSat
20115 579 279 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.148.0/24 15296 Netera Alliance Inc.
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
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
192.84.205.0/24 719 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 /8:19 /9:3 /10:8 /11:14 /12:62
/13:148 /14:305 /15:564 /16:8291 /17:2422 /18:4127
/19:10093 /20:10735 /21:8570 /22:11847 /23:13076 /24:85468
/25:265 /26:237 /27:98 /28:49 /29:23 /30:83
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 752 767 Covad Communications
6197 710 867 BellSouth Network Solutions,
7018 634 1461 AT&T WorldNet Services
2386 587 823 AT&T Data Communications Serv
4323 479 1031 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 424 601 Satyam Infoway Ltd.,
4766 404 593 Korea Internet Exchange for "
5668 381 451 Century Telephone
702 371 609 UUNET - Commercial IP service
1239 371 923 Sprint
6198 335 468 BellSouth Network Solutions,
10036 296 296 C&M Communication Co. Ltd.
6517 288 310 Yipes Communications, Inc.
9929 278 353 China Netcom Corp.
6467 273 361 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
701 246 1033 UUNET Technologies, Inc.
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1488 13:1 15:9 16:2
17:3 18:4 20:5 24:736 32:65 33:4
38:99 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:3 60:21 61:705 62:527
63:1864 64:2582 65:2053 66:2716 67:519 68:505
69:912 70:65 71:9 72:71 80:545 81:519
82:331 83:275 84:131 85:122 128:142 129:162
130:94 131:279 132:36 133:1 134:142 135:30
136:191 137:65 138:160 139:53 140:198 141:101
142:140 143:129 144:172 145:44 146:278 147:100
148:266 149:164 150:95 151:63 152:110 153:81
154:3 155:143 156:71 157:81 158:152 159:164
160:67 161:59 162:420 163:84 164:216 165:159
166:130 167:223 168:402 169:133 170:312 171:9
192:5671 193:3089 194:2267 195:1598 196:636 198:3886
199:3257 200:3984 201:52 202:5201 203:6043 204:3687
205:2022 206:2343 207:2741 208:2078 209:3196 210:1571
211:790 212:1157 213:1264 214:242 215:31 216:3641
217:1070 218:189 219:113 220:366 221:88 222:76
End of report
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