[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Sat Mar 19 04:09:09 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 19 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 157975
Prefixes after maximum aggregation: 92333
Unique aggregates announced to Internet: 76032
Total ASes present in the Internet Routing Table: 19179
Origin-only ASes present in the Internet Routing Table: 16690
Origin ASes announcing only one prefix: 7773
Transit ASes present in the Internet Routing Table: 2489
Transit-only ASes present in the Internet Routing Table: 77
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: 30
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1386736677
Equivalent to 82 /8s, 167 /16s and 236 /24s
Percentage of available address space announced: 37.4
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73656
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31730
Total APNIC prefixes after maximum aggregation: 15189
Prefixes being announced from the APNIC address blocks: 29767
Unique aggregates announced from the APNIC address blocks: 15218
APNIC Region origin ASes present in the Internet Routing Table: 2223
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 178488768
Equivalent to 10 /8s, 163 /16s and 133 /24s
Percentage of available APNIC address space announced: 66.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
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: 87847
Total ARIN prefixes after maximum aggregation: 53334
Prefixes being announced from the ARIN address blocks: 67238
Unique aggregates announced from the ARIN address blocks: 24648
ARIN Region origin ASes present in the Internet Routing Table: 9948
ARIN Region origin ASes announcing only one prefix: 3596
ARIN Region transit ASes present in the Internet Routing Table: 953
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 242177536
Equivalent to 14 /8s, 111 /16s and 86 /24s
Percentage of available ARIN address space announced: 72.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 30075
Total RIPE prefixes after maximum aggregation: 20703
Prefixes being announced from the RIPE address blocks: 27030
Unique aggregates announced from the RIPE address blocks: 17906
RIPE Region origin ASes present in the Internet Routing Table: 6417
RIPE Region origin ASes announcing only one prefix: 3382
RIPE Region transit ASes present in the Internet Routing Table: 1081
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 195233488
Equivalent to 11 /8s, 163 /16s and 6 /24s
Percentage of available RIPE address space announced: 68.5
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
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: 6923
Total LACNIC prefixes after maximum aggregation: 2410
Prefixes being announced from the LACNIC address blocks: 6886
Unique aggregates announced from the LACNIC address blocks: 4027
LACNIC Region origin ASes present in the Internet Routing Table: 425
LACNIC Region origin ASes announcing only one prefix: 125
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 17796096
Equivalent to 1 /8s, 15 /16s and 140 /24s
Percentage of available LACNIC address space announced: 53.0
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1373
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 894
Unique aggregates announced from the AfriNIC address blocks: 717
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2187264
Equivalent to 0 /8s, 33 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 13.0
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 893 4729 176 Data Communications Bureau
1221 785 1187 558 Telstra Pty Ltd
9583 622 50 29 Satyam Infoway Ltd.,
4766 582 3415 276 Korea Internet Exchange for "
4755 501 242 106 Videsh Sanchar Nigam Ltd. Aut
7545 477 86 70 TPG Internet Pty Ltd
17676 417 6300 76 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
17557 358 25 158 Pakistan Telecom
2907 347 1823 321 SINET Japan
10036 300 27 273 C&M Communication Co. Ltd.
4808 299 245 160 CHINANET core WAN North
7474 290 283 211 Optus Communications Pty Ltd
4802 282 47 166 Wantree Development
9498 259 82 53 BHARTI BT INTERNET LTD.
703 257 280 214 UUNET
2764 256 238 204 connect.com.au pty ltd
9800 236 387 70 CHINA UNICOM
9942 215 69 113 COMindico Australia
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6561 960 AT&T WorldNet Services
721 1119 21755 313 DLA Systems Automation Center
4323 1070 668 221 Time Warner Telecom
701 1030 8272 876 UUNET Technologies, Inc.
174 925 5569 784 PSINet Inc.
1239 914 2872 659 Sprint
6197 878 383 411 BellSouth Network Solutions,
2386 833 501 614 AT&T Data Communications Serv
18566 778 208 6 Covad Communications
209 638 3474 502 Qwest
20115 586 486 306 Charter Communications
3356 578 10863 429 Level 3 Communications, LLC
3561 555 2370 414 Cable & Wireless USA
852 540 1095 400 Telus Advanced Communications
3602 506 121 93 Sprint Canada, Inc.
6478 499 832 108 AT&T Worldnet Services
22773 481 1218 25 Cox Communications, Inc. Atla
6198 468 554 196 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 460 115 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 605 2005 495 UUNET - Commercial IP service
3320 295 2992 230 Deutsche Telekom AG
3301 289 1112 279 TeliaNet Sweden
8220 277 466 271 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 230 475 224 Song Networks
8708 226 251 204 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
9121 197 237 39 TTnet Autonomous System
1257 196 710 173 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 173 19 20 Bulgarian Telecommunication C
3269 166 1456 72 TELECOM ITALIA
6746 160 47 141 Dynamic Network Technologies,
719 157 322 99 LANLINK autonomous system
3300 152 184 85 AUCS Communications Services
6830 143 529 28 UPC Distribution Services
25186 143 138 101 France Telecom Transpac's Tra
5400 141 281 125 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 381 140 72 ImpSat
8151 334 488 139 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 215 99 53 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 148 19 23 Keytech SA
7303 147 67 31 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 118 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
6503 103 145 73 AVANTEL, S.A.
13999 100 52 9 Mega Cable S.A. de C.V.
11556 98 49 4 Cable-Wireless Panama
6535 87 7 23 Chilesat Servicios Empresari
11311 86 8 22 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
10481 80 32 7 Prima S.A.
4270 77 18 9 Red de Interconexion Universi
15311 77 24 36 Telefonica Empresas
7738 75 298 16 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 114 15 18 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 88 16 2 Noor Advanced Technologies AS
2905 74 266 68 The Internetworking Company o
8452 55 20 5 TEDATA
24835 55 34 6 RAYA Telecom - Egypt
12455 41 7 4 Jambonet Autonomous system
9129 39 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
5713 27 141 24 Telkom SA Ltd
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 18 2 3 Swift Global Kenya Ltd.Is an
8346 17 10 11 SONATEL-AS Autonomous System
15808 16 1 1 Communication Solutions Ltd i
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1070 849 Time Warner Telecom
721 1119 806 DLA Systems Automation Center
18566 778 772 Covad Communications
4134 893 717 Data Communications Bureau
9583 622 593 Satyam Infoway Ltd.,
6197 878 467 BellSouth Network Solutions,
22773 481 456 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 460 443 Century Telephone
3602 506 413 Sprint Canada, Inc.
7545 477 407 TPG Internet Pty Ltd
4755 501 395 Videsh Sanchar Nigam Ltd. Aut
6478 499 391 AT&T Worldnet Services
6467 408 375 E.Spire Communications, Inc.
17676 417 341 XTAGE CORPORATION
9929 358 313 China Netcom Corp.
6140 381 309 ImpSat
4766 582 306 Korea Internet Exchange for "
9443 374 295 Primus Telecommunications
20115 586 280 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25695 UNALLOCATED 64.57.112.0/20 5713 Telkom SA Ltd
65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.169.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.170.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.171.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.172.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.173.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.174.0/24 33205 KMC Telecom Solution
65535 PRIVATE 64.111.175.0/24 33205 KMC Telecom Solution
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
30998 UNALLOCATED 65.120.56.0/21 209 Qwest
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd.
24261 UNALLOCATED 133.67.0.0/16 9351 Tsu Cable Television
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
30998 UNALLOCATED 196.207.0.0/20 209 Qwest
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
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
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
191.250.0.1/32 668 Defense Research and Engineer
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 /8:19 /9:3 /10:8 /11:14 /12:62
/13:152 /14:305 /15:573 /16:8321 /17:2477 /18:4186
/19:10131 /20:10825 /21:8727 /22:12051 /23:13167 /24:86110
/25:264 /26:257 /27:110 /28:53 /29:26 /30:90
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 763 778 Covad Communications
6197 719 878 BellSouth Network Solutions,
7018 638 1464 AT&T WorldNet Services
2386 586 833 AT&T Data Communications Serv
4323 492 1070 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 443 622 Satyam Infoway Ltd.,
4766 399 582 Korea Internet Exchange for "
5668 383 460 Century Telephone
1239 378 914 Sprint
702 368 605 UUNET - Commercial IP service
6198 336 468 BellSouth Network Solutions,
6467 305 408 E.Spire Communications, Inc.
10036 300 300 C&M Communication Co. Ltd.
6517 289 311 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 263 310 Carolina Online, Inc.
701 250 1030 UUNET Technologies, Inc.
15270 247 266 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1503 13:1 15:9 16:2
17:3 18:4 20:5 24:740 32:64 33:5
38:101 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:4 59:10 60:24 61:739
62:526 63:1879 64:2633 65:2069 66:2730 67:509
68:506 69:926 70:73 71:5 72:124 80:530
81:512 82:345 83:249 84:129 85:174 128:148
129:158 130:89 131:280 132:34 133:1 134:144
135:34 136:190 137:66 138:158 139:50 140:196
141:104 142:139 143:129 144:172 145:45 146:281
147:98 148:294 149:166 150:97 151:63 152:110
153:85 154:3 155:142 156:69 157:87 158:167
159:167 160:71 161:60 162:198 163:86 164:215
165:153 166:127 167:229 168:409 169:133 170:312
171:8 172:1 192:5657 193:3116 194:2300 195:1600
196:623 198:3922 199:3264 200:4029 201:57 202:5337
203:6083 204:3725 205:2023 206:2369 207:2699 208:2068
209:3199 210:1630 211:821 212:1182 213:1273 214:242
215:31 216:3681 217:1120 218:193 219:113 220:370
221:111 222:65
End of report
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