[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Sep 9 21:06:50 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 10 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 169983
Prefixes after maximum aggregation: 97203
Unique aggregates announced to Internet: 82000
Total ASes present in the Internet Routing Table: 20445
Origin-only ASes present in the Internet Routing Table: 17787
Origin ASes announcing only one prefix: 8431
Transit ASes present in the Internet Routing Table: 2658
Transit-only ASes present in the Internet Routing Table: 73
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: 21
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1419431168
Equivalent to 84 /8s, 154 /16s and 205 /24s
Percentage of available address space announced: 38.3
Percentage of allocated address space announced: 57.7
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80774
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35338
Total APNIC prefixes after maximum aggregation: 15719
Prefixes being announced from the APNIC address blocks: 33197
Unique aggregates announced from the APNIC address blocks: 16372
APNIC Region origin ASes present in the Internet Routing Table: 2356
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 362
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 197369344
Equivalent to 11 /8s, 195 /16s and 158 /24s
Percentage of available APNIC address space announced: 73.2
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: 90654
Total ARIN prefixes after maximum aggregation: 55107
Prefixes being announced from the ARIN address blocks: 70887
Unique aggregates announced from the ARIN address blocks: 26032
ARIN Region origin ASes present in the Internet Routing Table: 10182
ARIN Region origin ASes announcing only one prefix: 3765
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 266366720
Equivalent to 15 /8s, 224 /16s and 111 /24s
Percentage of available ARIN address space announced: 66.2
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: 32763
Total RIPE prefixes after maximum aggregation: 22377
Prefixes being announced from the RIPE address blocks: 29810
Unique aggregates announced from the RIPE address blocks: 20148
RIPE Region origin ASes present in the Internet Routing Table: 7070
RIPE Region origin ASes announcing only one prefix: 3728
RIPE Region transit ASes present in the Internet Routing Table: 1170
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217250688
Equivalent to 12 /8s, 242 /16s and 251 /24s
Percentage of available RIPE address space announced: 64.7
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: 9508
Total LACNIC prefixes after maximum aggregation: 3190
Prefixes being announced from the LACNIC address blocks: 7859
Unique aggregates announced from the LACNIC address blocks: 4571
LACNIC Region origin ASes present in the Internet Routing Table: 634
LACNIC Region origin ASes announcing only one prefix: 196
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: 26
Number of LACNIC addresses announced to Internet: 21992960
Equivalent to 1 /8s, 79 /16s and 150 /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: 1695
Total AfriNIC prefixes after maximum aggregation: 810
Prefixes being announced from the AfriNIC address blocks: 1024
Unique aggregates announced from the AfriNIC address blocks: 775
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: 17
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2650112
Equivalent to 0 /8s, 40 /16s and 112 /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 5884 200 CHINANET-BACKBONE
9583 779 77 12 Sify Limited
1221 749 1327 517 Telstra Pty Ltd
4755 708 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 604 3927 287 Korea Telecom (KIX)
7545 520 108 73 TPG Internet Pty Ltd
17676 465 6739 99 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
2907 337 1789 314 SINET Japan
17557 337 24 161 Pakistan Telecom
9498 336 147 60 BHARTI BT INTERNET LTD.
9929 335 224 46 China Netcom Corp.
17488 319 19 8 Hathway IP Over Cable Interne
7474 315 257 218 SingTel Optus Pty Ltd
4802 299 60 152 Wantree Development
18302 295 109 160 SK Global co., Ltd
9837 277 79 178 Powertel Ltd
17974 274 65 14 PT TELEKOMUNIKASI INDONESIA
703 255 262 209 UUNET - Commercial IP service
9800 246 386 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1504 6374 983 AT&T WorldNet Services
4323 1164 706 227 Time Warner Telecom
174 1117 5852 1021 Cogent Communications
721 1081 21922 311 DLA Systems Automation Center
701 998 8120 843 UUNET Technologies, Inc.
6197 943 389 478 BellSouth Network Solutions,
2386 902 514 674 AT&T Data Communications Serv
1239 865 2851 610 Sprint
18566 843 224 21 Covad Communications
20115 644 506 324 Charter Communications
209 625 3457 493 Qwest
3356 577 10661 447 Level 3 Communications, LLC
27364 554 44 18 Armstrong Cable Services
3602 553 125 107 Sprint Canada, Inc.
3561 537 2401 419 Savvis
22773 523 1352 27 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 473 417 228 BellSouth Network Solutions,
7132 461 4949 395 SBC Internet Services
19262 452 1372 120 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 591 1978 478 UUNET - Commercial IP service
3301 301 1081 287 TeliaNet Sweden
3320 292 3232 240 Deutsche Telekom AG
8220 263 474 259 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 234 262 215 Romania Data Systems S.A.
3246 228 476 221 Song Networks
1257 198 713 176 SWIPnet Swedish IP Network
9121 195 290 41 TTnet Autonomous System
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
3269 174 1574 69 TELECOM ITALIA
786 173 1779 173 The JANET IP Service
5400 167 289 141 BT Ignite European Backbone
6830 157 669 33 UPC Distribution Services
3300 155 184 90 AUCS Communications Services
8866 154 36 8 Bulgarian Telecommunication C
25186 142 145 99 France Telecom Transpac's Tra
1273 138 174 96 Cable & Wireless Deutschland
8551 138 122 21 Bezeq International
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 297 18 7 NSS, S.A.
11172 247 83 58 Servicios Alestra S.A de C.V
6147 196 118 21 Telefonica Del Peru
11664 190 20 23 Keytech SA
19632 183 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 154 10 5 Telefonica del Sur S.A.
7303 145 69 16 Telecom Argentina Stet-France
11556 129 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
19169 121 8 25 Telconet
10481 120 48 8 Prima S.A.
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 265 708 222 The Internet Solution
5536 124 8 11 Internet Egypt Network
8452 108 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 93 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
9129 38 3 4 UUNET Kenya
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 27 4 18 AS Number for Telecom Algeria
15804 26 2 1 AS of The Way Out Internet So
16637 22 10 19 Johnnic e-Ventures
21280 22 4 5 Swift Global Kenya Ltd.Is an
8524 21 1 6 AUCEGYPT Autonomous System
10798 21 1 12 Standard Bank of South Africa
23889 20 5 9 MAURITIUS TELECOM
15808 19 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1164 937 Time Warner Telecom
18566 843 822 Covad Communications
721 1081 770 DLA Systems Automation Center
9583 779 767 Sify Limited
4134 965 765 CHINANET-BACKBONE
4755 708 644 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 523 496 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 943 465 BellSouth Network Solutions,
7545 520 447 TPG Internet Pty Ltd
3602 553 446 Sprint Canada, Inc.
17676 465 366 Softbank BB Corp.
6467 428 355 E.Spire Communications, Inc.
19262 452 332 Verizon Global Networks
11492 330 323 Cable One
20115 644 320 Charter Communications
4766 604 317 Korea Telecom (KIX)
17488 319 311 Hathway IP Over Cable Interne
15270 335 308 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
65000 PRIVATE 195.177.123.0/24 25408 West Call Ltd carrie
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
28605 UNALLOCATED 201.20.144.0/20 4230 Embratel
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
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 /8:17 /9:3 /10:8 /11:17 /12:78
/13:173 /14:320 /15:626 /16:8508 /17:2727 /18:4662
/19:10730 /20:11818 /21:9816 /22:13204 /23:14086 /24:92219
/25:336 /26:296 /27:176 /28:48 /29:22 /30:61
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 828 843 Covad Communications
6197 772 943 BellSouth Network Solutions,
7018 712 1504 AT&T WorldNet Services
2386 613 902 AT&T Data Communications Serv
9583 605 779 Sify Limited
4323 552 1164 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 421 604 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 368 591 UUNET - Commercial IP service
1239 364 865 Sprint
19916 363 369 OLM LLC
7011 349 404 Citizens Utilities
6198 346 473 BellSouth Network Solutions,
11492 322 330 Cable One
6517 306 332 Yipes Communications, Inc.
15270 305 335 PaeTec.net -a division of Pae
701 284 998 UUNET Technologies, Inc.
6467 280 428 E.Spire Communications, Inc.
18302 280 295 SK Global co., Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:23 11:1 12:1572 13:1 15:9
16:2 17:3 18:3 20:21 24:1070 30:3
32:61 38:148 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:156 59:67 60:121
61:723 62:789 63:1891 64:2856 65:2065 66:2889
67:608 68:609 69:1210 70:178 71:15 72:370
80:608 81:561 82:465 83:297 84:234 85:306
86:106 87:10 128:153 129:169 130:94 131:294
132:36 133:1 134:145 135:43 136:146 137:65
138:164 139:61 140:420 141:105 142:145 143:138
144:218 145:34 146:293 147:117 148:300 149:181
150:107 151:69 152:112 153:92 154:5 155:149
156:80 157:112 158:164 159:171 160:85 161:73
162:222 163:116 164:188 165:194 166:155 167:245
168:438 169:142 170:315 171:8 190:1 192:5715
193:3274 194:2403 195:1563 196:645 198:3860 199:3301
200:4181 201:321 202:6070 203:6351 204:3782 205:2082
206:2466 207:2829 208:2032 209:3355 210:1665 211:806
212:1210 213:1331 214:294 215:39 216:3645 217:1084
218:217 219:138 220:455 221:267 222:125
End of report
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