[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Jun 10 21:06:39 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 11 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 164762
Prefixes after maximum aggregation: 95367
Unique aggregates announced to Internet: 79285
Total ASes present in the Internet Routing Table: 19838
Origin-only ASes present in the Internet Routing Table: 17272
Origin ASes announcing only one prefix: 8102
Transit ASes present in the Internet Routing Table: 2566
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: 23
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1414830208
Equivalent to 84 /8s, 84 /16s and 152 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 77669
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34090
Total APNIC prefixes after maximum aggregation: 15849
Prefixes being announced from the APNIC address blocks: 31999
Unique aggregates announced from the APNIC address blocks: 15942
APNIC Region origin ASes present in the Internet Routing Table: 2293
APNIC Region origin ASes announcing only one prefix: 673
APNIC Region transit ASes present in the Internet Routing Table: 345
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 186651264
Equivalent to 11 /8s, 32 /16s and 18 /24s
Percentage of available APNIC address space announced: 69.3
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: 88735
Total ARIN prefixes after maximum aggregation: 54041
Prefixes being announced from the ARIN address blocks: 69253
Unique aggregates announced from the ARIN address blocks: 25366
ARIN Region origin ASes present in the Internet Routing Table: 9992
ARIN Region origin ASes announcing only one prefix: 3658
ARIN Region transit ASes present in the Internet Routing Table: 940
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 249387008
Equivalent to 14 /8s, 221 /16s and 88 /24s
Percentage of available ARIN address space announced: 70.8
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, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 31316
Total RIPE prefixes after maximum aggregation: 21599
Prefixes being announced from the RIPE address blocks: 28381
Unique aggregates announced from the RIPE address blocks: 19084
RIPE Region origin ASes present in the Internet Routing Table: 6737
RIPE Region origin ASes announcing only one prefix: 3543
RIPE Region transit ASes present in the Internet Routing Table: 1115
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 208011456
Equivalent to 12 /8s, 102 /16s and 0 /24s
Percentage of available RIPE address space announced: 72.9
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
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8935
Total LACNIC prefixes after maximum aggregation: 3106
Prefixes being announced from the LACNIC address blocks: 7326
Unique aggregates announced from the LACNIC address blocks: 4255
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 192
LACNIC Region transit ASes present in the Internet Routing Table: 115
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 19134496
Equivalent to 1 /8s, 35 /16s and 248 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1661
Total AfriNIC prefixes after maximum aggregation: 772
Prefixes being announced from the AfriNIC address blocks: 1013
Unique aggregates announced from the AfriNIC address blocks: 779
AfriNIC Region origin ASes present in the Internet Routing Table: 128
AfriNIC Region origin ASes announcing only one prefix: 36
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: 2289664
Equivalent to 0 /8s, 34 /16s and 240 /24s
Percentage of available AfriNIC address space announced: 6.8
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 913 5150 192 CHINANET-BACKBONE
9583 755 55 63 Sify Limited
1221 754 1453 540 Telstra Pty Ltd
4755 604 246 122 Videsh Sanchar Nigam Ltd. Aut
4766 595 3412 278 Korea Telecom (KIX)
7545 501 104 71 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 374 77 76 Primus Telecommunications
9929 364 221 48 China Netcom Corp.
10036 340 56 306 C&M Communication Co. Ltd.
2907 338 1805 315 SINET Japan
9498 321 83 62 BHARTI BT INTERNET LTD.
17557 317 22 152 Pakistan Telecom
7474 312 271 216 SingTel Optus Pty Ltd
4808 310 250 172 CNCGROUP IP network: China169
4802 279 47 159 Wantree Development
18302 269 108 146 SK Global co., Ltd
17974 264 65 14 PT TELEKOMUNIKASI INDONESIA
703 253 276 207 UUNET - Commercial IP service
2764 253 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6460 973 AT&T WorldNet Services
174 1249 5615 1071 Cogent Communications
4323 1118 647 217 Time Warner Telecom
721 1111 21787 313 DLA Systems Automation Center
701 1018 8171 855 UUNET Technologies, Inc.
6197 920 498 438 BellSouth Network Solutions,
1239 896 2873 648 Sprint
2386 858 533 639 AT&T Data Communications Serv
18566 817 224 7 Covad Communications
209 630 3505 496 Qwest
20115 616 492 311 Charter Communications
3356 567 10824 434 Level 3 Communications, LLC
27364 565 43 18 Armstrong Cable Services
3602 543 123 100 Sprint Canada, Inc.
3561 533 2384 421 Savvis
852 526 1094 389 Telus Advanced Communications
22773 490 1188 23 Cox Communications, Inc.
5668 488 115 25 CenturyTel Internet Holdings,
7725 484 60 15 MediaOne
6198 466 386 221 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 1999 487 UUNET - Commercial IP service
3320 305 3232 241 Deutsche Telekom AG
3301 296 1081 284 TeliaNet Sweden
8220 269 469 265 COLT Telecommunications
680 252 2041 238 DFN-IP service G-WiN
8708 232 254 215 Romania Data Systems S.A.
3246 225 489 220 Song Networks
1257 198 712 174 SWIPnet Swedish IP Network
5515 179 778 129 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
719 168 340 101 LANLINK autonomous system
6746 168 47 146 Dynamic Network Technologies,
3269 166 1496 69 TELECOM ITALIA
5400 163 285 137 BT Ignite European Backbone
8866 158 21 11 Bulgarian Telecommunication C
3300 154 184 86 AUCS Communications Services
6830 138 529 28 UPC Distribution Services
3352 131 1240 33 Ibernet, Internet Access Netw
9051 131 8 33 INCONET Autonomous System
9121 131 269 41 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 380 600 149 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 221 98 53 Servicios Alestra S.A de C.V
6147 197 110 21 Telefonica Del Peru
11664 197 19 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 150 69 19 Telecom Argentina Stet-France
6505 134 90 90 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
11556 129 64 2 Cable-Wireless Panama
13999 113 52 9 Mega Cable S.A. de C.V.
19632 108 14 5 Metropolis Intercom S.A.
18822 107 7 13 TELEFONICA MANQUEHUE
6503 106 146 72 AVANTEL, S.A.
19169 105 7 20 Telconet
10481 101 40 7 Prima S.A.
22927 97 73 25 TELEFONICA DE ARGENTINA
21826 95 13 20 INTERCABLE
23216 95 24 23 RAMtelecom Telecomunicaciones
5639 94 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 637 223 The Internet Solution
5536 119 15 17 Internet Egypt Network
20928 94 16 2 Noor Advanced Technologies AS
2018 91 295 86 Tertiary Education Network
8452 82 28 6 TEDATA
2905 74 266 66 The Internetworking Company o
24835 64 34 6 RAYA Telecom - Egypt
6713 59 54 8 Itissalat Al-MAGHRIB
9129 45 3 3 UUNET Kenya
12455 40 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 32 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
23889 19 5 8 MAURITIUS TELECOM
21491 18 1 2 UTL On-line is RF broadband I
7460 17 3 5 LIA Internet Access
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1118 901 Time Warner Telecom
18566 817 810 Covad Communications
721 1111 798 DLA Systems Automation Center
4134 913 721 CHINANET-BACKBONE
9583 755 692 Sify Limited
27364 565 547 Armstrong Cable Services
6197 920 482 BellSouth Network Solutions,
4755 604 482 Videsh Sanchar Nigam Ltd. Aut
7725 484 469 MediaOne
22773 490 467 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 543 443 Sprint Canada, Inc.
7545 501 430 TPG Internet Pty Ltd
6467 423 389 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 402 322 ImpSat
4766 595 317 Korea Telecom (KIX)
9929 364 316 China Netcom Corp.
20115 616 305 Charter Communications
9443 374 298 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 61.17.25.0/24 4755 Videsh Sanchar Nigam
65009 PRIVATE 69.39.0.0/20 21803 1st Class Internet S
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
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
64512 PRIVATE 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.62.0/23 11664 Keytech SA
64512 PRIVATE 200.80.154.0/23 11664 Keytech SA
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
50.160.0.0/13 1221 Telstra Pty Ltd
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
172.32.0.0/24 7011 Citizens Utilities
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
192.169.0.0/23 3970 RGnet, Inc.
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 /8:19 /9:3 /10:8 /11:15 /12:71
/13:158 /14:308 /15:604 /16:8425 /17:2573 /18:4422
/19:10393 /20:11274 /21:9231 /22:12701 /23:13760 /24:89872
/25:331 /26:270 /27:147 /28:45 /29:29 /30:70
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 801 817 Covad Communications
6197 751 920 BellSouth Network Solutions,
7018 689 1497 AT&T WorldNet Services
2386 608 858 AT&T Data Communications Serv
9583 572 755 Sify Limited
27364 556 565 Armstrong Cable Services
4323 537 1118 Time Warner Telecom
7725 455 484 MediaOne
4766 413 595 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 380 896 Sprint
702 367 594 UUNET - Commercial IP service
6198 341 466 BellSouth Network Solutions,
10036 332 340 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 297 423 E.Spire Communications, Inc.
9929 283 364 China Netcom Corp.
15270 278 299 PaeTec.net -a division of Pae
6517 274 296 Yipes Communications, Inc.
11456 271 310 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:15 12:1552 13:1 15:9 16:2
17:3 18:3 20:4 24:1166 30:2 32:69
33:4 38:126 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:90 59:44 60:55
61:809 62:603 63:1891 64:2744 65:2070 66:2877
67:581 68:525 69:1032 70:114 71:9 72:223
80:586 81:554 82:415 83:268 84:200 85:250
86:20 128:191 129:172 130:88 131:296 132:37
133:1 134:151 135:40 136:134 137:69 138:167
139:61 140:194 141:102 142:148 143:137 144:188
145:33 146:287 147:108 148:300 149:172 150:105
151:65 152:106 153:86 154:5 155:142 156:78
157:99 158:160 159:171 160:76 161:67 162:323
163:91 164:210 165:178 166:160 167:235 168:426
169:142 170:309 171:8 172:1 192:5720 193:3179
194:2418 195:1552 196:662 198:3930 199:3290 200:3988
201:156 202:5791 203:6332 204:3770 205:2018 206:2509
207:2828 208:2049 209:3315 210:1712 211:856 212:1214
213:1320 214:263 215:31 216:3455 217:1148 218:207
219:108 220:387 221:228 222:107
End of report
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