[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Aug 26 21:06:30 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 27 Aug, 2005
Analysis Summary
----------------
BGP routing table entries examined: 168976
Prefixes after maximum aggregation: 96929
Unique aggregates announced to Internet: 81611
Total ASes present in the Internet Routing Table: 20370
Origin-only ASes present in the Internet Routing Table: 17728
Origin ASes announcing only one prefix: 8403
Transit ASes present in the Internet Routing Table: 2642
Transit-only ASes present in the Internet Routing Table: 76
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: 15
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1411870976
Equivalent to 84 /8s, 39 /16s and 113 /24s
Percentage of available address space announced: 38.1
Percentage of allocated address space announced: 57.4
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80191
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35039
Total APNIC prefixes after maximum aggregation: 15773
Prefixes being announced from the APNIC address blocks: 32900
Unique aggregates announced from the APNIC address blocks: 16471
APNIC Region origin ASes present in the Internet Routing Table: 2342
APNIC Region origin ASes announcing only one prefix: 697
APNIC Region transit ASes present in the Internet Routing Table: 352
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 195514112
Equivalent to 11 /8s, 167 /16s and 79 /24s
Percentage of available APNIC address space announced: 72.6
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: 90319
Total ARIN prefixes after maximum aggregation: 54941
Prefixes being announced from the ARIN address blocks: 70576
Unique aggregates announced from the ARIN address blocks: 25937
ARIN Region origin ASes present in the Internet Routing Table: 10165
ARIN Region origin ASes announcing only one prefix: 3755
ARIN Region transit ASes present in the Internet Routing Table: 952
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 262450432
Equivalent to 15 /8s, 164 /16s and 173 /24s
Percentage of available ARIN address space announced: 65.2
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: 32577
Total RIPE prefixes after maximum aggregation: 22250
Prefixes being announced from the RIPE address blocks: 29615
Unique aggregates announced from the RIPE address blocks: 19933
RIPE Region origin ASes present in the Internet Routing Table: 7027
RIPE Region origin ASes announcing only one prefix: 3716
RIPE Region transit ASes present in the Internet Routing Table: 1167
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 215275776
Equivalent to 12 /8s, 212 /16s and 217 /24s
Percentage of available RIPE address space announced: 64.2
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, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9341
Total LACNIC prefixes after maximum aggregation: 3176
Prefixes being announced from the LACNIC address blocks: 7698
Unique aggregates announced from the LACNIC address blocks: 4437
LACNIC Region origin ASes present in the Internet Routing Table: 633
LACNIC Region origin ASes announcing only one prefix: 196
LACNIC Region transit ASes present in the Internet Routing Table: 118
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 21781760
Equivalent to 1 /8s, 76 /16s and 93 /24s
Percentage of available LACNIC address space announced: 32.5
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: 1680
Total AfriNIC prefixes after maximum aggregation: 789
Prefixes being announced from the AfriNIC address blocks: 1014
Unique aggregates announced from the AfriNIC address blocks: 785
AfriNIC Region origin ASes present in the Internet Routing Table: 133
AfriNIC Region origin ASes announcing only one prefix: 39
AfriNIC Region transit ASes present in the Internet Routing Table: 17
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2636288
Equivalent to 0 /8s, 40 /16s and 58 /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 957 5524 194 CHINANET-BACKBONE
9583 756 77 14 Sify Limited
1221 751 1326 521 Telstra Pty Ltd
4755 697 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 602 3927 285 Korea Telecom (KIX)
7545 516 108 72 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
9498 338 99 59 BHARTI BT INTERNET LTD.
2907 336 1788 313 SINET Japan
9929 334 224 46 China Netcom Corp.
17557 326 23 154 Pakistan Telecom
7474 317 257 220 SingTel Optus Pty Ltd
17488 314 18 7 Hathway IP Over Cable Interne
18302 302 110 158 SK Global co., Ltd
4802 295 53 156 Wantree Development
9837 277 80 179 Powertel Ltd
17974 264 65 14 PT TELEKOMUNIKASI INDONESIA
703 258 262 208 UUNET - Commercial IP service
9800 250 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1518 6377 981 AT&T WorldNet Services
4323 1155 704 221 Time Warner Telecom
174 1123 5837 1026 Cogent Communications
721 1091 21906 313 DLA Systems Automation Center
701 1006 8154 857 UUNET Technologies, Inc.
6197 946 503 445 BellSouth Network Solutions,
2386 903 528 663 AT&T Data Communications Serv
1239 861 2847 623 Sprint
18566 836 225 8 Covad Communications
20115 641 503 324 Charter Communications
209 626 3470 488 Qwest
3356 575 10661 445 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 549 125 106 Sprint Canada, Inc.
3561 533 2416 421 Savvis
22773 523 1352 27 Cox Communications, Inc.
5668 501 115 23 CenturyTel Internet Holdings,
7132 455 4948 389 SBC Internet Services
19262 450 1370 120 Verizon Global Networks
6198 449 416 222 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 591 1999 482 UUNET - Commercial IP service
3301 299 1081 285 TeliaNet Sweden
3320 290 3232 239 Deutsche Telekom AG
8220 262 474 258 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 233 262 214 Romania Data Systems S.A.
3246 229 469 222 Song Networks
1257 201 712 175 SWIPnet Swedish IP Network
5515 181 778 127 Sonera Solution Autonomous Sy
6746 181 49 157 Dynamic Network Technologies,
9121 175 282 44 TTnet Autonomous System
786 174 1794 174 The JANET IP Service
3269 171 1528 68 TELECOM ITALIA
5400 167 289 141 BT Ignite European Backbone
8866 166 20 7 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 156 184 90 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
8551 139 120 20 Bezeq International
1273 137 174 96 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 650 169 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 242 87 58 Servicios Alestra S.A de C.V
11664 191 20 23 Keytech SA
6147 189 110 21 Telefonica Del Peru
22047 172 128 7 VTR PUNTO NET S.A.
14117 152 9 5 Telefonica del Sur S.A.
7303 143 68 15 Telecom Argentina Stet-France
19632 143 14 5 Metropolis Intercom S.A.
11556 131 64 3 Cable-Wireless Panama
6505 130 90 87 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 120 8 26 Telconet
6503 114 148 75 AVANTEL, S.A.
18822 110 7 14 TELEFONICA MANQUEHUE
13999 108 52 9 Mega Cable S.A. de C.V.
21826 103 13 15 INTERCABLE
5639 102 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 96 24 20 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 262 685 220 The Internet Solution
5536 121 8 14 Internet Egypt Network
8452 101 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
2905 77 210 69 The Internetworking Company o
15475 77 84 4 Nile Online
24835 58 34 7 RAYA Telecom - Egypt
20928 57 16 2 Noor Advanced Technologies AS
6713 51 54 8 Itissalat Al-MAGHRIB
5713 43 149 33 Telkom SA Ltd
9129 42 3 3 UUNET Kenya
15706 31 8 3 Sudatel Internet Exchange Aut
12455 30 5 6 Jambonet Autonomous system
8524 23 1 3 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 21 1 12 Standard Bank of South Africa
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1155 934 Time Warner Telecom
18566 836 828 Covad Communications
721 1091 778 DLA Systems Automation Center
4134 957 763 CHINANET-BACKBONE
9583 756 742 Sify Limited
4755 697 633 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
6197 946 501 BellSouth Network Solutions,
22773 523 496 Cox Communications, Inc.
5668 501 478 CenturyTel Internet Holdings,
7545 516 444 TPG Internet Pty Ltd
3602 549 443 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 423 350 E.Spire Communications, Inc.
19262 450 330 Verizon Global Networks
20115 641 317 Charter Communications
4766 602 317 Korea Telecom (KIX)
11492 322 315 Cable One
9443 386 307 Primus Telecommunications
17488 314 307 Hathway IP Over Cable Interne
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
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
64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt
64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
63946 RESERVED 204.222.174.0/23 268 Uniformed Services U
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 /8:17 /9:3 /10:8 /11:17 /12:76
/13:171 /14:319 /15:614 /16:8505 /17:2697 /18:4603
/19:10666 /20:11694 /21:9728 /22:13134 /23:14020 /24:91690
/25:328 /26:318 /27:176 /28:49 /29:27 /30:80
/31:1 /32:35
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 820 836 Covad Communications
6197 769 946 BellSouth Network Solutions,
7018 724 1518 AT&T WorldNet Services
2386 611 903 AT&T Data Communications Serv
9583 578 756 Sify Limited
4323 553 1155 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 419 602 Korea Telecom (KIX)
5668 405 501 CenturyTel Internet Holdings,
702 365 591 UUNET - Commercial IP service
19916 363 369 OLM LLC
1239 360 861 Sprint
7011 345 401 Citizens Utilities
6198 323 449 BellSouth Network Solutions,
11492 314 322 Cable One
6517 302 325 Yipes Communications, Inc.
15270 302 332 PaeTec.net -a division of Pae
18302 287 302 SK Global co., Ltd
701 282 1006 UUNET Technologies, Inc.
11456 280 317 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:7 8:22 11:1 12:1572 13:1 15:9
16:2 17:3 18:3 20:22 24:1065 30:3
32:61 33:1 38:143 40:56 44:4 47:2
52:4 55:2 56:3 57:23 58:154 59:64
60:114 61:717 62:722 63:1876 64:2832 65:2066
66:2900 67:600 68:579 69:1150 70:171 71:12
72:349 80:593 81:541 82:461 83:301 84:225
85:286 86:90 87:28 128:153 129:167 130:94
131:299 132:37 133:1 134:144 135:42 136:150
137:64 138:163 139:61 140:401 141:106 142:144
143:135 144:193 145:34 146:289 147:111 148:297
149:180 150:107 151:61 152:108 153:89 154:5
155:143 156:80 157:99 158:167 159:167 160:87
161:72 162:220 163:112 164:188 165:194 166:154
167:247 168:439 169:141 170:317 171:8 190:1
192:5739 193:3266 194:2401 195:1598 196:651 198:3882
199:3288 200:4117 201:279 202:6068 203:6352 204:3801
205:2047 206:2455 207:2831 208:2032 209:3325 210:1653
211:786 212:1240 213:1335 214:295 215:35 216:3626
217:1116 218:217 219:136 220:437 221:248 222:123
End of report
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