Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Dec 17 18:06:51 UTC 2004
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 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152880
Prefixes after maximum aggregation: 89665
Unique aggregates announced to Internet: 72514
Total ASes present in the Internet Routing Table: 18664
Origin-only ASes present in the Internet Routing Table: 16199
Origin ASes announcing only one prefix: 7612
Transit ASes present in the Internet Routing Table: 2465
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 17
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361000796
Equivalent to 81 /8s, 31 /16s and 57 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70903
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29890
Total APNIC prefixes after maximum aggregation: 14684
Prefixes being announced from the APNIC address blocks: 27944
Unique aggregates announced from the APNIC address blocks: 14492
APNIC Region origin ASes present in the Internet Routing Table: 2176
APNIC Region origin ASes announcing only one prefix: 651
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169579520
Equivalent to 10 /8s, 27 /16s and 148 /24s
Percentage of available APNIC address space announced: 77.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86347
Total ARIN prefixes after maximum aggregation: 52074
Prefixes being announced from the ARIN address blocks: 66077
Unique aggregates announced from the ARIN address blocks: 23778
ARIN Region origin ASes present in the Internet Routing Table: 9785
ARIN Region origin ASes announcing only one prefix: 3537
ARIN Region transit ASes present in the Internet Routing Table: 960
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237025792
Equivalent to 14 /8s, 32 /16s and 186 /24s
Percentage of available ARIN address space announced: 70.6
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,
26624-27647,29695-30719, 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: 28653
Total RIPE prefixes after maximum aggregation: 19851
Prefixes being announced from the RIPE address blocks: 25545
Unique aggregates announced from the RIPE address blocks: 16134
RIPE Region origin ASes present in the Internet Routing Table: 6128
RIPE Region origin ASes announcing only one prefix: 3283
RIPE Region transit ASes present in the Internet Routing Table: 1054
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 183405312
Equivalent to 10 /8s, 238 /16s and 139 /24s
Percentage of available RIPE address space announced: 64.3
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: 6732
Total LACNIC prefixes after maximum aggregation: 2363
Prefixes being announced from the LACNIC address blocks: 6594
Unique aggregates announced from the LACNIC address blocks: 4053
LACNIC Region origin ASes present in the Internet Routing Table: 408
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16897024
Equivalent to 1 /8s, 1 /16s and 212 /24s
Percentage of available LACNIC address space announced: 50.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1250
Total AfriNIC prefixes after maximum aggregation: 693
Prefixes being announced from the AfriNIC address blocks: 823
Unique aggregates announced from the AfriNIC address blocks: 650
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2073344
Equivalent to 0 /8s, 31 /16s and 163 /24s
Percentage of available AfriNIC address space announced: 12.4
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 866 4401 166 Data Communications Bureau
1221 794 1184 568 Telstra Pty Ltd
9583 577 47 37 Satyam Infoway Ltd.,
4766 551 3409 271 Korea Internet Exchange for "
4755 436 176 95 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1873 329 SINET Japan
9929 354 164 40 China Netcom Corp.
17557 323 23 158 Pakistan Telecom
703 313 344 244 UUNET
10036 288 26 264 C&M Communication Co. Ltd.
2764 285 272 230 connect.com.au pty ltd
7474 270 267 199 Optus Communications Pty Ltd
4802 233 28 141 Wantree Development
9800 232 381 71 CHINA UNICOM
9498 229 81 53 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
4780 221 225 27 Digital United Inc.
17974 220 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6587 984 AT&T WorldNet Services
701 1076 8352 891 UUNET Technologies, Inc.
721 1063 21824 298 DLA Systems Automation Center
1239 935 2882 624 Sprint
2386 862 529 614 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 815 670 220 Time Warner Telecom
18566 755 208 6 Covad Communications
209 652 3405 505 Qwest
3356 626 10908 456 Level 3 Communications, LLC
20115 572 464 299 Charter Communications
3561 543 2368 412 Cable & Wireless USA
852 531 1142 405 Telus Advanced Communications
7843 483 733 95 Adelphia Corp.
6478 466 814 97 AT&T Worldnet Services
7132 452 8292 385 SBC Internet Services
6198 447 382 202 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 423 87 18 Century Telephone
22909 422 906 64 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 629 2024 520 UUNET - Commercial IP service
3320 300 2995 236 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 275 463 263 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 223 482 219 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 205 116 189 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 175 990 77 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 155 1329 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 144 138 100 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 348 139 78 ImpSat
8151 319 473 140 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 215 99 55 Servicios Alestra S.A de C.V
6147 192 94 20 Telefonica Del Peru
11664 169 14 24 Keytech SA
7303 149 66 24 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 90 6 32 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 80 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 26 5 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1063 765 DLA Systems Automation Center
18566 755 749 Covad Communications
4134 866 700 Data Communications Bureau
4323 815 595 Time Warner Telecom
9583 577 540 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 423 405 Century Telephone
22773 415 392 Cox Communications, Inc. Atla
7843 483 388 Adelphia Corp.
6478 466 369 AT&T Worldnet Services
22909 422 358 Comcast Cable Corporation
6467 375 344 E.Spire Communications, Inc.
4755 436 341 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 935 311 Sprint
13609 328 294 Choice One Communications Inc
4355 394 293 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
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
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 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 /8:20 /9:3 /10:7 /11:15 /12:59
/13:138 /14:314 /15:562 /16:8219 /17:2325 /18:4006
/19:10010 /20:10586 /21:8133 /22:11327 /23:12875 /24:83369
/25:268 /26:238 /27:124 /28:57 /29:39 /30:137
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 740 755 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 629 862 AT&T Data Communications Serv
7018 583 1426 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 407 577 Satyam Infoway Ltd.,
702 384 629 UUNET - Commercial IP service
1239 373 935 Sprint
4766 371 551 Korea Internet Exchange for "
5668 366 423 Century Telephone
6198 326 447 BellSouth Network Solutions,
10036 288 288 C&M Communication Co. Ltd.
6517 286 309 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
6467 285 375 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
21502 269 272 NUMERICABLE is a cabled netwo
4323 264 815 Time Warner Telecom
701 261 1076 UUNET Technologies, Inc.
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1458 13:1 15:5 16:2
17:3 18:3 20:4 24:713 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 60:11 61:697 62:520 63:1846
64:2522 65:2084 66:2521 67:478 68:520 69:841
70:46 71:1 72:19 80:523 81:586 82:370
83:212 84:81 85:34 128:117 129:164 130:89
131:192 132:37 134:190 135:30 136:189 137:70
138:189 139:34 140:230 141:110 142:135 143:123
144:165 145:40 146:283 147:95 148:264 149:129
150:92 151:63 152:118 153:70 154:2 155:132
156:62 157:68 158:137 159:162 160:61 161:61
162:381 163:83 164:222 165:157 166:125 167:222
168:366 169:130 170:312 171:8 192:5650 193:3005
194:2212 195:1550 196:564 198:3902 199:3310 200:3936
201:37 202:4974 203:5810 204:3580 205:2113 206:2293
207:2541 208:2107 209:3065 210:1575 211:702 212:1152
213:1260 214:229 215:31 216:3747 217:1067 218:181
219:86 220:300 221:86 222:32
End of report
More information about the NANOG
mailing list