Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Oct 21 18:06:29 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 22 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 172518
Prefixes after maximum aggregation: 98093
Unique aggregates announced to Internet: 83749
Total ASes present in the Internet Routing Table: 20734
Origin-only ASes present in the Internet Routing Table: 18027
Origin ASes announcing only one prefix: 8543
Transit ASes present in the Internet Routing Table: 2707
Transit-only ASes present in the Internet Routing Table: 75
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: 26
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1435243072
Equivalent to 85 /8s, 140 /16s and 18 /24s
Percentage of available address space announced: 38.7
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 82326
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35851
Total APNIC prefixes after maximum aggregation: 15747
Prefixes being announced from the APNIC address blocks: 33663
Unique aggregates announced from the APNIC address blocks: 16681
APNIC Region origin ASes present in the Internet Routing Table: 2388
APNIC Region origin ASes announcing only one prefix: 693
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 203929728
Equivalent to 12 /8s, 39 /16s and 184 /24s
Percentage of available APNIC address space announced: 75.7
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: 91650
Total ARIN prefixes after maximum aggregation: 55548
Prefixes being announced from the ARIN address blocks: 71720
Unique aggregates announced from the ARIN address blocks: 26944
ARIN Region origin ASes present in the Internet Routing Table: 10276
ARIN Region origin ASes announcing only one prefix: 3792
ARIN Region transit ASes present in the Internet Routing Table: 965
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 272820480
Equivalent to 16 /8s, 66 /16s and 233 /24s
Percentage of available ARIN address space announced: 67.8
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: 33529
Total RIPE prefixes after maximum aggregation: 22748
Prefixes being announced from the RIPE address blocks: 30530
Unique aggregates announced from the RIPE address blocks: 20448
RIPE Region origin ASes present in the Internet Routing Table: 7220
RIPE Region origin ASes announcing only one prefix: 3807
RIPE Region transit ASes present in the Internet Routing Table: 1194
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 221048320
Equivalent to 13 /8s, 44 /16s and 238 /24s
Percentage of available RIPE address space announced: 65.9
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: 9695
Total LACNIC prefixes after maximum aggregation: 3231
Prefixes being announced from the LACNIC address blocks: 8001
Unique aggregates announced from the LACNIC address blocks: 4690
LACNIC Region origin ASes present in the Internet Routing Table: 646
LACNIC Region origin ASes announcing only one prefix: 207
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22292992
Equivalent to 1 /8s, 84 /16s and 42 /24s
Percentage of available LACNIC address space announced: 33.2
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: 1763
Total AfriNIC prefixes after maximum aggregation: 819
Prefixes being announced from the AfriNIC address blocks: 1082
Unique aggregates announced from the AfriNIC address blocks: 800
AfriNIC Region origin ASes present in the Internet Routing Table: 140
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2841088
Equivalent to 0 /8s, 43 /16s and 90 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1006 6230 211 CHINANET-BACKBONE
9583 812 77 13 Sify Limited
1221 752 1327 513 Telstra Pty Ltd
4755 724 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 619 3927 290 Korea Telecom (KIX)
7545 518 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 382 211 58 BHARTI BT INTERNET LTD.
2907 338 1763 315 SINET Japan
17488 334 20 9 Hathway IP Over Cable Interne
7474 330 258 227 SingTel Optus Pty Ltd
9929 330 224 46 China Netcom Corp.
17557 329 24 161 Pakistan Telecom
4802 325 72 154 Wantree Development
18302 291 109 170 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 265 68 18 Reliance Infocom Ltd Internet
703 254 259 210 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1519 6358 991 AT&T WorldNet Services
4323 1189 705 228 Time Warner Telecom
721 1080 21938 313 DLA Systems Automation Center
174 1052 5847 991 Cogent Communications
701 1004 8138 841 UUNET Technologies, Inc.
6197 944 399 488 BellSouth Network Solutions,
2386 923 513 685 AT&T Data Communications Serv
18566 864 240 7 Covad Communications
1239 858 2852 605 Sprint
209 641 3572 507 Qwest
20115 633 515 336 Charter Communications
3602 559 131 109 Sprint Canada, Inc.
22773 544 1348 27 Cox Communications, Inc.
19916 541 48 71 OLM LLC
3356 535 10639 411 Level 3 Communications, LLC
19262 492 1460 128 Verizon Global Networks
6198 489 577 212 BellSouth Network Solutions,
5668 484 147 23 CenturyTel Internet Holdings,
3561 475 2409 402 Savvis
7132 470 5061 401 SBC Internet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 603 1976 476 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 286 3231 241 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 239 274 224 Romania Data Systems S.A.
3246 226 474 219 Song Networks
6746 196 51 168 Dynamic Network Technologies,
1257 193 712 171 SWIPnet Swedish IP Network
5515 183 841 129 Sonera Solution Autonomous Sy
3269 182 1734 70 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 173 317 143 BT Ignite European Backbone
6830 160 669 33 UPC Distribution Services
8866 160 37 9 Bulgarian Telecommunication C
3300 157 169 91 AUCS Communications Services
25186 151 227 106 France Telecom Transpac's Tra
3215 142 1229 81 France Telecom Transpac
24863 141 37 6 LINKdotNET AS number
1273 136 176 95 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 386 641 166 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 280 86 65 Servicios Alestra S.A de C.V
11664 198 22 13 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
6147 189 118 21 Telefonica Del Peru
14117 169 10 5 Telefonica del Sur S.A.
22047 168 128 7 VTR PUNTO NET S.A.
7303 149 69 15 Telecom Argentina Stet-France
11556 133 64 3 Cable-Wireless Panama
19169 122 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 117 52 9 Mega Cable S.A. de C.V.
18822 112 7 13 TELEFONICA MANQUEHUE
6503 109 148 76 AVANTEL, S.A.
21826 108 14 17 INTERCABLE
5639 105 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
4270 88 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 227 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 117 44 7 TEDATA
2018 95 295 86 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 7 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 35 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 3 20 AS Number for Telecom Algeria
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 20 4 4 Swift Global Kenya Ltd.Is an
23889 19 5 9 MAURITIUS TELECOM
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 1189 961 Time Warner Telecom
18566 864 857 Covad Communications
9583 812 799 Sify Limited
4134 1006 795 CHINANET-BACKBONE
721 1080 767 DLA Systems Automation Center
4755 724 658 Videsh Sanchar Nigam Ltd. Aut
22773 544 517 Cox Communications, Inc.
19916 541 470 OLM LLC
5668 484 461 CenturyTel Internet Holdings,
6197 944 456 BellSouth Network Solutions,
3602 559 450 Sprint Canada, Inc.
7545 518 447 TPG Internet Pty Ltd
17676 470 370 Softbank BB Corp.
19262 492 364 Verizon Global Networks
6467 408 360 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
11492 346 335 Cable One
4766 619 329 Korea Telecom (KIX)
17488 334 325 Hathway IP Over Cable Interne
9498 382 324 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
64900 PRIVATE 64.116.137.0/24 17399 Comsat Venezuela, CO
65002 PRIVATE 64.119.148.0/22 19406 Towerstream
65500 PRIVATE 64.146.64.0/24 19029 New Edge Networks
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
64643 PRIVATE 140.253.192.0/20 24434 James Cook Universit
65205 PRIVATE 152.163.5.0/24 2056 America Online
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
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
65004 PRIVATE 200.4.7.0/24 28477 Universidad Autonoma
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
65500 PRIVATE 216.217.188.0/24 19029 New Edge Networks
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
192.172.0.0/19 721 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 /9:5 /10:8 /11:18 /12:80
/13:182 /14:335 /15:654 /16:8595 /17:2852 /18:4785
/19:10884 /20:11940 /21:10001 /22:13217 /23:14222 /24:93807
/25:333 /26:280 /27:183 /28:36 /29:12 /30:39
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 848 864 Covad Communications
6197 771 944 BellSouth Network Solutions,
7018 741 1519 AT&T WorldNet Services
2386 637 923 AT&T Data Communications Serv
9583 635 812 Sify Limited
4323 570 1189 Time Warner Telecom
19916 532 541 OLM LLC
4766 427 619 Korea Telecom (KIX)
5668 389 484 CenturyTel Internet Holdings,
702 383 603 UUNET - Commercial IP service
7011 383 443 Citizens Utilities
1239 367 858 Sprint
6198 352 489 BellSouth Network Solutions,
11492 338 346 Cable One
6517 322 348 Yipes Communications, Inc.
15270 316 343 PaeTec.net -a division of Pae
13609 286 327 Choice One Communications Inc
701 285 1004 UUNET Technologies, Inc.
22773 277 544 Cox Communications, Inc.
18302 276 291 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:25 12:1611 13:1 15:11 16:3
17:3 18:3 20:31 24:566 30:2 32:68
38:163 40:54 44:3 47:2 52:4 55:1
56:3 57:35 58:96 59:79 60:146 61:789
62:787 63:1886 64:2954 65:2111 66:2989 67:643
68:661 69:1292 70:219 71:32 72:409 80:651
81:570 82:504 83:307 84:291 85:362 86:140
87:64 125:15 128:152 129:168 130:97 131:296
132:36 133:1 134:148 135:40 136:158 137:68
138:166 139:68 140:465 141:141 142:148 143:141
144:218 145:34 146:300 147:131 148:272 149:187
150:107 151:68 152:112 153:93 154:6 155:141
156:78 157:114 158:162 159:174 160:87 161:76
162:237 163:146 164:183 165:189 166:153 167:254
168:447 169:144 170:313 171:11 190:1 192:5717
193:3321 194:2426 195:1562 196:664 198:3900 199:3247
200:4231 201:381 202:6199 203:6490 204:3823 205:2068
206:2451 207:2841 208:2027 209:3440 210:1698 211:826
212:1200 213:1359 214:315 215:39 216:3840 217:1133
218:222 219:134 220:509 221:293 222:131
End of report
More information about the NANOG
mailing list