Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Sep 23 18:07:23 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 24 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170925
Prefixes after maximum aggregation: 97293
Unique aggregates announced to Internet: 82277
Total ASes present in the Internet Routing Table: 20556
Origin-only ASes present in the Internet Routing Table: 17862
Origin ASes announcing only one prefix: 8466
Transit ASes present in the Internet Routing Table: 2694
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: 28
Prefixes from unregistered ASNs in the Routing Table: 18
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1425779840
Equivalent to 84 /8s, 251 /16s and 172 /24s
Percentage of available address space announced: 38.5
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81476
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35531
Total APNIC prefixes after maximum aggregation: 15562
Prefixes being announced from the APNIC address blocks: 33382
Unique aggregates announced from the APNIC address blocks: 16415
APNIC Region origin ASes present in the Internet Routing Table: 2364
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: 20
Number of APNIC addresses announced to Internet: 200282112
Equivalent to 11 /8s, 240 /16s and 16 /24s
Percentage of available APNIC address space announced: 74.3
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: 91099
Total ARIN prefixes after maximum aggregation: 55256
Prefixes being announced from the ARIN address blocks: 71256
Unique aggregates announced from the ARIN address blocks: 26188
ARIN Region origin ASes present in the Internet Routing Table: 10237
ARIN Region origin ASes announcing only one prefix: 3786
ARIN Region transit ASes present in the Internet Routing Table: 959
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 270284800
Equivalent to 16 /8s, 28 /16s and 56 /24s
Percentage of available ARIN address space announced: 67.1
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: 33022
Total RIPE prefixes after maximum aggregation: 22456
Prefixes being announced from the RIPE address blocks: 30053
Unique aggregates announced from the RIPE address blocks: 20165
RIPE Region origin ASes present in the Internet Routing Table: 7110
RIPE Region origin ASes announcing only one prefix: 3748
RIPE Region transit ASes present in the Internet Routing Table: 1195
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 218480064
Equivalent to 13 /8s, 5 /16s and 189 /24s
Percentage of available RIPE address space announced: 65.1
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: 9532
Total LACNIC prefixes after maximum aggregation: 3208
Prefixes being announced from the LACNIC address blocks: 7900
Unique aggregates announced from the LACNIC address blocks: 4609
LACNIC Region origin ASes present in the Internet Routing Table: 638
LACNIC Region origin ASes announcing only one prefix: 197
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22086144
Equivalent to 1 /8s, 81 /16s and 2 /24s
Percentage of available LACNIC address space announced: 32.9
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: 1719
Total AfriNIC prefixes after maximum aggregation: 811
Prefixes being announced from the AfriNIC address blocks: 1060
Unique aggregates announced from the AfriNIC address blocks: 804
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: 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: 2734336
Equivalent to 0 /8s, 41 /16s and 185 /24s
Percentage of available AfriNIC address space announced: 8.1
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 984 6080 203 CHINANET-BACKBONE
9583 798 77 12 Sify Limited
1221 748 1328 515 Telstra Pty Ltd
4755 719 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 611 3927 289 Korea Telecom (KIX)
7545 514 108 72 TPG Internet Pty Ltd
17676 468 6787 101 Softbank BB Corp.
9443 386 84 77 Primus Telecommunications
9498 337 147 58 BHARTI BT INTERNET LTD.
2907 336 1757 313 SINET Japan
9929 335 224 46 China Netcom Corp.
17557 328 23 158 Pakistan Telecom
17488 320 19 8 Hathway IP Over Cable Interne
7474 313 257 216 SingTel Optus Pty Ltd
4802 311 67 151 Wantree Development
17974 302 66 13 PT TELEKOMUNIKASI INDONESIA
18302 293 109 155 SK Global co., Ltd
9837 273 79 174 Powertel Ltd
703 253 263 206 UUNET - Commercial IP service
9800 249 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1512 6360 985 AT&T WorldNet Services
4323 1175 705 229 Time Warner Telecom
721 1090 21922 312 DLA Systems Automation Center
174 1070 5850 1002 Cogent Communications
701 992 8120 837 UUNET Technologies, Inc.
6197 928 398 474 BellSouth Network Solutions,
2386 921 513 683 AT&T Data Communications Serv
1239 863 2851 608 Sprint
18566 854 240 7 Covad Communications
20115 649 507 329 Charter Communications
209 629 3585 495 Qwest
3356 577 10661 444 Level 3 Communications, LLC
27364 558 44 18 Armstrong Cable Services
3602 557 131 110 Sprint Canada, Inc.
3561 540 2409 420 Savvis
22773 538 1352 28 Cox Communications, Inc.
5668 490 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 466 4950 398 SBC Internet Services
19262 461 1395 119 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 608 1994 480 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 288 3230 239 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 237 262 217 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 223 336 25 TTnet Autonomous System
1257 195 712 173 SWIPnet Swedish IP Network
5515 185 778 127 Sonera Solution Autonomous Sy
6746 185 50 161 Dynamic Network Technologies,
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 165 37 9 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 155 169 90 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
24863 138 37 6 LINKdotNET AS number
3215 137 1181 79 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 650 169 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 248 83 60 Servicios Alestra S.A de C.V
11664 204 22 24 Keytech SA
6147 191 118 21 Telefonica Del Peru
19632 183 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
14117 156 10 5 Telefonica del Sur S.A.
7303 148 70 13 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
6505 122 89 86 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
19169 120 8 28 Telconet
13999 118 52 9 Mega Cable S.A. de C.V.
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 105 13 16 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
2018 95 295 86 Tertiary Education Network
15475 83 84 4 Nile Online
2905 79 211 71 The Internetworking Company o
8452 79 32 6 TEDATA
20928 61 16 2 Noor Advanced Technologies AS
24835 59 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
16637 23 10 20 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 22 4 5 Swift Global Kenya Ltd.Is an
21491 18 17 2 UTL On-line is RF broadband I
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1175 946 Time Warner Telecom
18566 854 847 Covad Communications
9583 798 786 Sify Limited
4134 984 781 CHINANET-BACKBONE
721 1090 778 DLA Systems Automation Center
4755 719 653 Videsh Sanchar Nigam Ltd. Aut
27364 558 540 Armstrong Cable Services
22773 538 510 Cox Communications, Inc.
5668 490 467 CenturyTel Internet Holdings,
6197 928 454 BellSouth Network Solutions,
3602 557 447 Sprint Canada, Inc.
7545 514 442 TPG Internet Pty Ltd
17676 468 367 Softbank BB Corp.
6467 396 347 E.Spire Communications, Inc.
19262 461 342 Verizon Global Networks
11492 337 329 Cable One
4766 611 322 Korea Telecom (KIX)
20115 649 320 Charter Communications
15270 340 312 PaeTec.net -a division of Pae
17488 320 312 Hathway IP Over Cable Interne
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65533 PRIVATE 22.22.22.0/24 17841 KRNIC
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 8376 GO-JOR Autonomous Sy
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.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
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 /9:5 /10:8 /11:17 /12:81
/13:177 /14:323 /15:631 /16:8511 /17:2786 /18:4711
/19:10801 /20:11852 /21:9882 /22:13262 /23:14141 /24:92819
/25:334 /26:273 /27:189 /28:26 /29:10 /30:54
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 838 854 Covad Communications
6197 763 928 BellSouth Network Solutions,
7018 724 1512 AT&T WorldNet Services
2386 632 921 AT&T Data Communications Serv
9583 624 798 Sify Limited
4323 562 1175 Time Warner Telecom
27364 549 558 Armstrong Cable Services
4766 427 611 Korea Telecom (KIX)
5668 398 490 CenturyTel Internet Holdings,
702 384 608 UUNET - Commercial IP service
1239 365 863 Sprint
19916 363 369 OLM LLC
7011 362 420 Citizens Utilities
6198 345 472 BellSouth Network Solutions,
11492 329 337 Cable One
6517 311 337 Yipes Communications, Inc.
15270 310 340 PaeTec.net -a division of Pae
701 286 992 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
20115 274 649 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1595 13:1 15:10 16:2
17:3 18:3 20:27 22:1 24:1085 32:65
38:157 40:54 44:4 47:2 52:4 55:1
56:3 57:23 58:157 59:69 60:124 61:761
62:762 63:1896 64:2872 65:2080 66:2928 67:616
68:611 69:1222 70:190 71:18 72:386 80:628
81:522 82:470 83:304 84:248 85:333 86:119
87:16 125:8 128:156 129:167 130:96 131:296
132:36 133:1 134:145 135:43 136:149 137:66
138:165 139:61 140:429 141:105 142:148 143:141
144:218 145:34 146:300 147:119 148:301 149:183
150:108 151:72 152:113 153:89 154:5 155:140
156:80 157:112 158:164 159:171 160:85 161:74
162:232 163:132 164:191 165:186 166:154 167:250
168:438 169:142 170:314 171:8 190:1 192:5672
193:3309 194:2400 195:1554 196:681 198:3869 199:3242
200:4194 201:330 202:6091 203:6418 204:3801 205:2053
206:2446 207:2817 208:2040 209:3391 210:1663 211:812
212:1183 213:1371 214:302 215:36 216:3719 217:1140
218:220 219:137 220:487 221:282 222:130
End of report
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