[afnog] Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Sat Mar 5 04:10:21 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 05 Mar, 2005
Analysis Summary
----------------
BGP routing table entries examined: 156980
Prefixes after maximum aggregation: 91812
Unique aggregates announced to Internet: 75951
Total ASes present in the Internet Routing Table: 19079
Origin-only ASes present in the Internet Routing Table: 16598
Origin ASes announcing only one prefix: 7747
Transit ASes present in the Internet Routing Table: 2481
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
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: 1381365024
Equivalent to 82 /8s, 85 /16s and 245 /24s
Percentage of available address space announced: 37.3
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 73122
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31360
Total APNIC prefixes after maximum aggregation: 15191
Prefixes being announced from the APNIC address blocks: 29402
Unique aggregates announced from the APNIC address blocks: 15308
APNIC Region origin ASes present in the Internet Routing Table: 2215
APNIC Region origin ASes announcing only one prefix: 651
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: 176401600
Equivalent to 10 /8s, 131 /16s and 172 /24s
Percentage of available APNIC address space announced: 65.5
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: 87515
Total ARIN prefixes after maximum aggregation: 52984
Prefixes being announced from the ARIN address blocks: 66773
Unique aggregates announced from the ARIN address blocks: 24478
ARIN Region origin ASes present in the Internet Routing Table: 9907
ARIN Region origin ASes announcing only one prefix: 3583
ARIN Region transit ASes present in the Internet Routing Table: 947
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 240188416
Equivalent to 14 /8s, 80 /16s and 252 /24s
Percentage of available ARIN address space announced: 71.6
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: 29849
Total RIPE prefixes after maximum aggregation: 20530
Prefixes being announced from the RIPE address blocks: 26772
Unique aggregates announced from the RIPE address blocks: 17751
RIPE Region origin ASes present in the Internet Routing Table: 6363
RIPE Region origin ASes announcing only one prefix: 3361
RIPE Region transit ASes present in the Internet Routing Table: 1073
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 193577808
Equivalent to 11 /8s, 137 /16s and 195 /24s
Percentage of available RIPE address space announced: 67.9
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, 33792-34815
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: 6876
Total LACNIC prefixes after maximum aggregation: 2402
Prefixes being announced from the LACNIC address blocks: 6817
Unique aggregates announced from the LACNIC address blocks: 4024
LACNIC Region origin ASes present in the Internet Routing Table: 423
LACNIC Region origin ASes announcing only one prefix: 128
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 17675264
Equivalent to 1 /8s, 13 /16s and 180 /24s
Percentage of available LACNIC address space announced: 52.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1365
Total AfriNIC prefixes after maximum aggregation: 705
Prefixes being announced from the AfriNIC address blocks: 895
Unique aggregates announced from the AfriNIC address blocks: 714
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
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: 2176768
Equivalent to 0 /8s, 33 /16s and 55 /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 887 4720 175 Data Communications Bureau
1221 792 1189 564 Telstra Pty Ltd
9583 608 49 21 Satyam Infoway Ltd.,
4766 589 3416 279 Korea Internet Exchange for "
4755 480 241 101 Videsh Sanchar Nigam Ltd. Aut
7545 465 75 159 TPG Internet Pty Ltd
17676 404 6092 70 XTAGE CORPORATION
9443 374 77 79 Primus Telecommunications
9929 359 167 39 China Netcom Corp.
2907 348 1839 322 SINET Japan
17557 330 25 152 Pakistan Telecom
10036 299 27 272 C&M Communication Co. Ltd.
7474 286 283 208 Optus Communications Pty Ltd
703 272 355 214 UUNET
2764 255 237 204 connect.com.au pty ltd
4802 250 45 157 Wantree Development
9498 246 81 54 BHARTI BT INTERNET LTD.
9800 240 395 71 CHINA UNICOM
4808 239 234 130 CHINANET core WAN North
17974 232 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6592 968 AT&T WorldNet Services
721 1125 21755 313 DLA Systems Automation Center
4323 1052 668 219 Time Warner Telecom
701 1031 8290 875 UUNET Technologies, Inc.
1239 926 2872 659 Sprint
6197 872 380 408 BellSouth Network Solutions,
2386 820 498 609 AT&T Data Communications Serv
18566 773 208 6 Covad Communications
174 766 5529 669 PSINet Inc.
209 638 3466 501 Qwest
3356 583 10864 433 Level 3 Communications, LLC
20115 579 478 300 Charter Communications
3561 561 2374 416 Cable & Wireless USA
852 534 1111 403 Telus Advanced Communications
3602 501 120 93 Sprint Canada, Inc.
6478 499 831 101 AT&T Worldnet Services
22773 478 1090 24 Cox Communications, Inc. Atla
6198 467 540 196 BellSouth Network Solutions,
27364 465 43 18 Armstrong Cable Services
5668 456 93 22 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 607 2006 498 UUNET - Commercial IP service
3320 295 2992 229 Deutsche Telekom AG
3301 291 1112 279 TeliaNet Sweden
8220 275 466 269 COLT Internet - International
680 254 2041 239 DFN-IP service G-WiN
3246 226 472 221 Song Networks
8708 224 123 201 Romania Data Systems S.A.
13083 218 51 8 Mannesmann Datenverarbeitung
1257 208 708 173 SWIPnet Swedish IP Network
3215 206 1058 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
8866 176 20 16 Bulgarian Telecommunication C
3269 165 1456 72 TELECOM ITALIA
3300 164 185 84 AUCS Communications Services
9121 164 230 31 TTnet Autonomous System
6746 163 47 144 Dynamic Network Technologies,
719 158 322 100 LANLINK autonomous system
6830 142 529 28 UPC Distribution Services
25186 140 138 100 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 140 67 ImpSat
8151 337 505 142 UniNet S.A. de C.V.
16814 233 14 6 NSS, S.A.
11172 220 99 54 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
11664 151 19 24 Keytech SA
7303 146 66 30 Telecom Argentina Stet-France
6505 135 90 91 Global One Communicaoes Ltda
14117 119 7 5 Telefonica del Sur S.A.
6503 114 145 75 AVANTEL, S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 92 52 9 Mega Cable S.A. de C.V.
11311 88 8 23 Sinectis S.A.
6535 87 7 23 Chilesat Servicios Empresari
14420 87 6 42 ANDINATEL S.A.
5639 83 12 9 Telecommunications Services o
10292 79 6 18 TELECOMMUNICATIONS OF JAMAICA
10481 79 32 7 Prima S.A.
15311 77 24 36 Telefonica Empresas
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 87 16 2 Noor Advanced Technologies AS
2905 84 267 76 The Internetworking Company o
8452 55 20 5 TEDATA
24835 53 34 6 RAYA Telecom - Egypt
9129 37 3 2 UUNET Kenya
6713 35 54 9 Itissalat Al-MAGHRIB
12455 30 7 4 Jambonet Autonomous system
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
15475 16 84 4 Nile Online
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 1052 833 Time Warner Telecom
721 1125 812 DLA Systems Automation Center
18566 773 767 Covad Communications
4134 887 712 Data Communications Bureau
9583 608 587 Satyam Infoway Ltd.,
6197 872 464 BellSouth Network Solutions,
22773 478 454 Cox Communications, Inc. Atla
27364 465 447 Armstrong Cable Services
5668 456 434 Century Telephone
3602 501 408 Sprint Canada, Inc.
6478 499 398 AT&T Worldnet Services
4755 480 379 Videsh Sanchar Nigam Ltd. Aut
17676 404 334 XTAGE CORPORATION
6467 360 327 E.Spire Communications, Inc.
9929 359 320 China Netcom Corp.
4766 589 310 Korea Internet Exchange for "
7545 465 306 TPG Internet Pty Ltd
9443 374 295 Primus Telecommunications
6140 350 283 ImpSat
20115 579 279 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
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
40439 UNALLOCATED 66.194.101.0/24 30439 Memphis Daily News
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
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
65535 PRIVATE 204.10.155.0/24 33205 KMC Telecom Solution
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
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
/13:148 /14:306 /15:570 /16:8298 /17:2433 /18:4160
/19:10091 /20:10755 /21:8633 /22:11925 /23:13095 /24:85642
/25:267 /26:247 /27:106 /28:51 /29:26 /30:83
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 758 773 Covad Communications
6197 715 872 BellSouth Network Solutions,
7018 636 1470 AT&T WorldNet Services
2386 584 820 AT&T Data Communications Serv
4323 484 1052 Time Warner Telecom
27364 450 465 Armstrong Cable Services
9583 432 608 Satyam Infoway Ltd.,
4766 405 589 Korea Internet Exchange for "
5668 383 456 Century Telephone
1239 373 926 Sprint
702 369 607 UUNET - Commercial IP service
6198 336 467 BellSouth Network Solutions,
10036 299 299 C&M Communication Co. Ltd.
6517 288 310 Yipes Communications, Inc.
9929 285 359 China Netcom Corp.
6467 271 360 E.Spire Communications, Inc.
11456 263 310 Carolina Online, Inc.
13609 257 306 Choice One Communications Inc
701 248 1031 UUNET Technologies, Inc.
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1487 13:1 15:9 16:2
17:3 18:4 20:5 24:737 32:64 33:4
38:98 40:55 44:3 47:2 52:3 55:2
56:3 57:24 58:1 59:5 60:21 61:709
62:518 63:1865 64:2576 65:2059 66:2710 67:522
68:504 69:899 70:68 71:11 72:83 80:544
81:526 82:331 83:261 84:136 85:152 128:140
129:162 130:94 131:279 132:35 133:1 134:142
135:30 136:189 137:66 138:156 139:53 140:197
141:102 142:139 143:127 144:175 145:45 146:278
147:101 148:279 149:163 150:96 151:63 152:110
153:85 154:3 155:142 156:68 157:83 158:155
159:168 160:71 161:60 162:428 163:85 164:209
165:164 166:130 167:226 168:401 169:133 170:307
171:9 192:5661 193:3114 194:2285 195:1589 196:625
198:3892 199:3309 200:3994 201:53 202:5199 203:6046
204:3712 205:2020 206:2345 207:2722 208:2072 209:3156
210:1609 211:800 212:1165 213:1256 214:243 215:31
216:3651 217:1093 218:189 219:108 220:369 221:92
222:72
End of report
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