Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Sep 16 18:06:49 UTC 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 17 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170386
Prefixes after maximum aggregation: 97174
Unique aggregates announced to Internet: 81546
Total ASes present in the Internet Routing Table: 20513
Origin-only ASes present in the Internet Routing Table: 17842
Origin ASes announcing only one prefix: 8441
Transit ASes present in the Internet Routing Table: 2671
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: 26
Prefixes from unregistered ASNs in the Routing Table: 26
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1424234304
Equivalent to 84 /8s, 228 /16s and 23 /24s
Percentage of available address space announced: 38.4
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81067
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35251
Total APNIC prefixes after maximum aggregation: 15514
Prefixes being announced from the APNIC address blocks: 33121
Unique aggregates announced from the APNIC address blocks: 15669
APNIC Region origin ASes present in the Internet Routing Table: 2360
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 360
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 199764992
Equivalent to 11 /8s, 232 /16s and 44 /24s
Percentage of available APNIC address space announced: 74.1
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, 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: 90936
Total ARIN prefixes after maximum aggregation: 55234
Prefixes being announced from the ARIN address blocks: 71100
Unique aggregates announced from the ARIN address blocks: 26179
ARIN Region origin ASes present in the Internet Routing Table: 10223
ARIN Region origin ASes announcing only one prefix: 3772
ARIN Region transit ASes present in the Internet Routing Table: 955
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 268101888
Equivalent to 15 /8s, 250 /16s and 233 /24s
Percentage of available ARIN address space announced: 66.6
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: 32911
Total RIPE prefixes after maximum aggregation: 22417
Prefixes being announced from the RIPE address blocks: 29968
Unique aggregates announced from the RIPE address blocks: 20184
RIPE Region origin ASes present in the Internet Routing Table: 7092
RIPE Region origin ASes announcing only one prefix: 3732
RIPE Region transit ASes present in the Internet Routing Table: 1184
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217836160
Equivalent to 12 /8s, 251 /16s and 234 /24s
Percentage of available RIPE address space announced: 64.9
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: 9520
Total LACNIC prefixes after maximum aggregation: 3197
Prefixes being announced from the LACNIC address blocks: 7876
Unique aggregates announced from the LACNIC address blocks: 4588
LACNIC Region origin ASes present in the Internet Routing Table: 636
LACNIC Region origin ASes announcing only one prefix: 199
LACNIC Region transit ASes present in the Internet Routing Table: 121
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22039808
Equivalent to 1 /8s, 80 /16s and 77 /24s
Percentage of available LACNIC address space announced: 32.8
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: 1738
Total AfriNIC prefixes after maximum aggregation: 812
Prefixes being announced from the AfriNIC address blocks: 1056
Unique aggregates announced from the AfriNIC address blocks: 799
AfriNIC Region origin ASes present in the Internet Routing Table: 139
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2660608
Equivalent to 0 /8s, 40 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 7.9
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 965 5948 201 CHINANET-BACKBONE
9583 788 77 14 Sify Limited
1221 745 1328 514 Telstra Pty Ltd
4755 713 259 63 Videsh Sanchar Nigam Ltd. Aut
4766 608 3927 287 Korea Telecom (KIX)
7545 516 108 73 TPG Internet Pty Ltd
17676 468 6787 101 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
9498 337 147 59 BHARTI BT INTERNET LTD.
9929 335 224 46 China Netcom Corp.
2907 332 1756 309 SINET Japan
17557 328 23 156 Pakistan Telecom
17488 320 19 8 Hathway IP Over Cable Interne
7474 314 257 217 SingTel Optus Pty Ltd
4802 301 60 152 Wantree Development
18302 294 109 154 SK Global co., Ltd
9837 278 80 179 Powertel Ltd
17974 272 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 263 206 UUNET - Commercial IP service
9800 251 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6374 981 AT&T WorldNet Services
4323 1173 706 229 Time Warner Telecom
721 1083 21922 310 DLA Systems Automation Center
174 1082 5851 1014 Cogent Communications
701 999 8120 841 UUNET Technologies, Inc.
6197 940 389 480 BellSouth Network Solutions,
2386 915 515 677 AT&T Data Communications Serv
1239 867 2852 611 Sprint
18566 848 225 23 Covad Communications
20115 647 509 327 Charter Communications
209 628 3441 494 Qwest
3356 576 10661 445 Level 3 Communications, LLC
3602 557 131 110 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 541 2409 421 Savvis
22773 529 1352 28 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 462 4949 395 SBC Internet Services
19262 453 1374 121 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 1994 480 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 291 3230 241 Deutsche Telekom AG
8220 266 474 261 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 236 262 216 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 200 292 40 TTnet Autonomous System
1257 195 712 173 SWIPnet Swedish IP Network
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 168 289 141 BT Ignite European Backbone
8866 167 37 9 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 143 145 100 France Telecom Transpac's Tra
24863 138 37 6 LINKdotNET AS number
3215 136 1165 80 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 650 168 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 248 83 60 Servicios Alestra S.A de C.V
6147 191 118 21 Telefonica Del Peru
11664 191 20 24 Keytech SA
19632 183 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 153 10 5 Telefonica del Sur S.A.
7303 148 70 13 Telecom Argentina Stet-France
11556 129 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 120 8 28 Telconet
13999 116 52 9 Mega Cable S.A. de C.V.
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 104 13 15 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 96 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 708 223 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 106 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 92 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
20928 59 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 4 20 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
23889 23 5 9 MAURITIUS TELECOM
16637 22 10 19 Johnnic e-Ventures
21280 22 4 5 Swift Global Kenya Ltd.Is an
10798 21 1 12 Standard Bank of South Africa
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1173 944 Time Warner Telecom
18566 848 825 Covad Communications
9583 788 774 Sify Limited
721 1083 773 DLA Systems Automation Center
4134 965 764 CHINANET-BACKBONE
4755 713 650 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 529 501 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 940 460 BellSouth Network Solutions,
3602 557 447 Sprint Canada, Inc.
7545 516 443 TPG Internet Pty Ltd
17676 468 367 Softbank BB Corp.
6467 399 349 E.Spire Communications, Inc.
19262 453 332 Verizon Global Networks
11492 335 327 Cable One
4766 608 321 Korea Telecom (KIX)
20115 647 320 Charter Communications
17488 320 312 Hathway IP Over Cable Interne
15270 337 310 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
65205 PRIVATE 152.163.5.0/24 2056 America Online
65111 PRIVATE 194.165.131.0/24 8697 Jordan Telecommunica
65430 PRIVATE 196.44.128.0/19 20459 Telecom Namibia
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
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
65500 PRIVATE 202.93.233.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.234.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.235.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.236.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.237.0/24 4795 INDOSATNET-ASN
65500 PRIVATE 202.93.238.0/24 4795 INDOSATNET-ASN
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65500 PRIVATE 211.158.36.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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 /8:18 /9:5 /10:8 /11:17 /12:80
/13:175 /14:323 /15:627 /16:8522 /17:2742 /18:4675
/19:10744 /20:11804 /21:9854 /22:13211 /23:14085 /24:92579
/25:325 /26:271 /27:169 /28:45 /29:14 /30:60
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 833 848 Covad Communications
6197 769 940 BellSouth Network Solutions,
7018 710 1500 AT&T WorldNet Services
2386 626 915 AT&T Data Communications Serv
9583 611 788 Sify Limited
4323 561 1173 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 425 608 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 369 593 UUNET - Commercial IP service
1239 369 867 Sprint
7011 368 423 Citizens Utilities
19916 363 369 OLM LLC
6198 345 472 BellSouth Network Solutions,
11492 327 335 Cable One
6517 310 336 Yipes Communications, Inc.
15270 307 337 PaeTec.net -a division of Pae
701 285 999 UUNET Technologies, Inc.
18302 279 294 SK Global co., Ltd
20115 270 647 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:23 12:1589 13:1 15:10 16:2
17:3 18:3 20:21 24:1070 30:3 32:61
38:149 40:55 44:4 47:2 52:4 55:1
56:3 57:23 58:156 59:68 60:122 61:726
62:759 63:1890 64:2875 65:2076 66:2910 67:614
68:612 69:1225 70:185 71:17 72:382 80:602
81:552 82:469 83:307 84:245 85:306 86:110
87:16 125:1 128:158 129:167 130:94 131:293
132:36 133:1 134:145 135:43 136:151 137:66
138:164 139:62 140:429 141:105 142:145 143:141
144:217 145:34 146:295 147:118 148:302 149:182
150:107 151:71 152:112 153:93 154:5 155:147
156:80 157:112 158:164 159:170 160:85 161:73
162:231 163:135 164:183 165:183 166:155 167:243
168:438 169:142 170:320 171:8 190:1 192:5709
193:3295 194:2402 195:1552 196:677 198:3881 199:3296
200:4179 201:327 202:6102 203:6384 204:3797 205:2069
206:2451 207:2821 208:2040 209:3355 210:1655 211:794
212:1214 213:1357 214:296 215:36 216:3669 217:1120
218:220 219:138 220:479 221:276 222:126
End of report
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