Weekly Routing Table Report
Routing Table Analysis
cscora at apnic.net
Fri Jun 18 18:06:14 UTC 2004
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 Jun, 2004
Analysis Summary
----------------
BGP routing table entries examined: 141523
Prefixes after maximum aggregation: 85033
Unique aggregates announced to Internet: 68045
Total ASes present in the Internet Routing Table: 17443
Origin-only ASes present in the Internet Routing Table: 15141
Origin ASes announcing only one prefix: 7052
Transit ASes present in the Internet Routing Table: 2302
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1312570364
Equivalent to 78 /8s, 60 /16s and 59 /24s
Percentage of available address space announced: 35.4
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 60.9
Total number of prefixes smaller than registry allocations: 65038
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 26892
Total APNIC prefixes after maximum aggregation: 13922
Prefixes being announced from the APNIC address blocks: 25127
Unique aggregates announced from the APNIC address blocks: 13853
APNIC Region origin ASes present in the Internet Routing Table: 2066
APNIC Region origin ASes announcing only one prefix: 617
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 150189824
Equivalent to 8 /8s, 243 /16s and 183 /24s
Percentage of available APNIC address space announced: 68.5
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 81412
Total ARIN prefixes after maximum aggregation: 49817
Prefixes being announced from the ARIN address blocks: 62628
Unique aggregates announced from the ARIN address blocks: 21990
ARIN Region origin ASes present in the Internet Routing Table: 9261
ARIN Region origin ASes announcing only one prefix: 3299
ARIN Region transit ASes present in the Internet Routing Table: 900
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 225323296
Equivalent to 13 /8s, 110 /16s and 41 /24s
Percentage of available ARIN address space announced: 74.6
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, 29695 - 30719
31744 - 33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 25927
Total RIPE prefixes after maximum aggregation: 18382
Prefixes being announced from the RIPE address blocks: 22697
Unique aggregates announced from the RIPE address blocks: 15087
RIPE Region origin ASes present in the Internet Routing Table: 5575
RIPE Region origin ASes announcing only one prefix: 3003
RIPE Region transit ASes present in the Internet Routing Table: 958
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 164653824
Equivalent to 9 /8s, 208 /16s and 107 /24s
Percentage of available RIPE address space announced: 57.7
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
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: 6144
Total LACNIC prefixes after maximum aggregation: 2237
Prefixes being announced from the LACNIC address blocks: 5780
Unique aggregates announced from the LACNIC address blocks: 3536
LACNIC Region origin ASes present in the Internet Routing Table: 379
LACNIC Region origin ASes announcing only one prefix: 110
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15081472
Equivalent to 0 /8s, 230 /16s and 32 /24s
Percentage of available LACNIC address space announced: 44.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1145
Total AfriNIC prefixes after maximum aggregation: 675
Prefixes being announced from the AfriNIC address blocks: 778
Unique aggregates announced from the AfriNIC address blocks: 582
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1870080
Equivalent to 0 /8s, 28 /16s and 137 /24s
Percentage of available AfriNIC address space announced: 11.1
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 845 1075 613 Telstra Pty Ltd
4134 793 3664 146 Data Communications Bureau
4766 494 2896 264 Korea Internet Exchange for "
9583 459 38 99 Satyam Infoway Ltd.,
4755 371 134 55 Videsh Sanchar Nigam Ltd. Aut
9443 353 69 78 Primus Telecommunications
2907 350 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
17557 335 23 163 Pakistan Telecom
703 328 375 255 UUNET
9929 320 155 38 China Netcom Corp.
2764 295 275 242 connect.com.au pty ltd
7474 262 267 205 Optus Communications Pty Ltd
9942 229 71 126 COMindico Australia
9800 223 367 61 CHINA UNICOM
9498 218 48 48 BHARTI BT INTERNET LTD.
4837 186 2019 105 chinanet IDC center beijing n
17974 183 51 99 PT TELEKOMUNIKASI INDONESIA
10036 181 17 169 C&M Communication Co. Ltd.
9304 179 161 25 Hutchison Telecom (HK)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1446 6892 1008 AT&T
701 1309 8486 934 UUNET Technologies, Inc.
1239 947 2998 640 Sprint
6347 933 400 99 SAVVIS Communications Corpora
3356 892 10916 676 Level 3 Communications, LLC
557 775 63 15 University of Maine System Co
4323 739 549 205 Time Warner Communications, I
18566 716 192 8 Covad Communications
6197 707 525 276 BellSouth Network Solutions,
209 616 3453 505 Qwest
6198 573 439 219 BellSouth Network Solutions,
20115 559 372 287 Charter Communications
852 512 1142 403 Telus Advanced Communications
7843 509 657 130 Adelphia Corp.
7132 453 7868 339 Southwestern Bell Internet Se
2386 425 564 227 AT&T Data Communications Serv
721 405 13177 297 DLA Systems Automation Center
705 396 144 270 UUNET Technologies, Inc.
4355 393 323 103 EarthLink, Inc.
22773 387 781 55 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 648 2039 540 UUNET - Commercial IP service
3320 298 2468 236 Deutsche Telekom AG
3301 291 1097 267 TeliaNet Sweden
8220 272 429 261 COLT Internet - International
1257 251 498 195 SWIPnet Swedish IP Network
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 211 492 208 Song Networks
5515 199 843 144 Sonera Solution Autonomous Sy
8708 184 112 172 Romania Data Systems S.A.
3215 182 895 69 France Telecom Transpac
719 179 288 102 LANLINK autonomous system
786 174 1794 174 The JANET IP Service
25186 174 156 115 France Telecom Transpac's Tra
6746 157 29 128 Dynamic Network Technologies,
5400 144 206 119 BT Ignite European Backbone
3269 134 1099 64 TELECOM ITALIA
3303 134 611 133 Swisscom Ltd
12302 127 18 31 MobiFon S.A.
8866 122 14 8 Bulgarian Telecommunication C
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 355 96 57 Servicios Alestra S.A de C.V
6140 346 140 67 ImpSat
8151 275 373 130 UniNet S.A. de C.V.
16814 203 13 7 NSS, S.A.
6147 161 82 21 Telefonica Del Peru
7303 144 53 32 Telecom Argentina Stet-France
6505 135 90 93 Global One Communicaoes Ltda
6503 129 202 87 AVANTEL, S.A.
11992 93 9 29 Integrated Systems
11556 87 57 24 Cable-Wireless Panama
6535 80 5 17 Chilesat Servicios Empresari
14420 78 5 28 ANDINATEL S.A.
14535 75 6 5 Techtel S.A.
15311 75 19 37 Telefonica Empresas
11311 73 7 20 Sinectis S.A.
5639 72 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
10292 66 6 25 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 The Internet Solution
5536 111 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 276 80 The Internetworking Company o
11845 38 9 11 Data Pro Business Online
24835 31 18 6 RAYA Telecom - Egypt
8524 25 2 4 AUCEGYPT Autonomous System
16637 25 9 18 Johnnic e-Ventures
5713 24 125 23 Telkom SA Ltd
6713 24 38 9 Itissalat Al-MAGHRIB
9129 24 3 2 UUNET Kenya
12455 24 4 2 Jambonet Autonomous system
14988 24 16 1 Botswana Telecommunications C
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
12258 15 3 10 Vodacom Internet Company
8346 13 6 12 SONATEL-AS Autonomous System
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
15808 12 1 4 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 933 834 SAVVIS Communications Corpora
557 775 760 University of Maine System Co
18566 716 708 Covad Communications
4134 793 647 Data Communications Bureau
4323 739 534 Time Warner Communications, I
6197 707 431 BellSouth Network Solutions,
7843 509 379 Adelphia Corp.
701 1309 375 UUNET Technologies, Inc.
5668 383 366 Century Telephone
22909 386 361 Comcast Cable Corporation
9583 459 360 Satyam Infoway Ltd.,
27364 376 357 Armstrong Cable Services
6198 573 354 BellSouth Network Solutions,
22773 387 332 Cox Communications, Inc. Atla
4755 371 316 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
1239 947 307 Sprint
11172 355 298 Servicios Alestra S.A de C.V
4355 393 290 EarthLink, Inc.
9929 320 282 China Netcom Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm
18416 UNALLOCATED 61.56.97.0/24 9919 New Century InfoComm
18416 UNALLOCATED 61.56.98.0/24 9919 New Century InfoComm
65501 PRIVATE 66.60.187.0/24 14051 Roseville Telephone
65501 PRIVATE 66.60.188.0/22 14051 Roseville Telephone
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 721 DLA Systems Automation Center
156.154.16.0/22 7786 Lockheed Martin IMS
158.0.0.0/13 721 DLA Systems Automation Center
164.234.0.0/18 721 DLA Systems Automation Center
164.234.0.0/16 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
192.172.11.0/24 721 DLA Systems Automation Center
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 /10:6 /11:15 /12:59
/13:124 /14:299 /15:517 /16:7865 /17:2063 /18:3622
/19:9450 /20:9910 /21:7300 /22:10340 /23:11829 /24:76737
/25:375 /26:396 /27:318 /28:178 /29:15 /30:69
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
557 742 775 University of Maine System Co
6347 710 933 SAVVIS Communications Corpora
18566 699 716 Covad Communications
7018 561 1446 AT&T
6197 536 707 BellSouth Network Solutions,
3356 503 892 Level 3 Communications, LLC
6198 403 573 BellSouth Network Solutions,
702 397 648 UUNET - Commercial IP service
1239 378 947 Sprint
701 376 1309 UUNET Technologies, Inc.
27364 364 376 Armstrong Cable Services
5668 335 383 Century Telephone
4766 313 494 Korea Internet Exchange for "
9583 307 459 Satyam Infoway Ltd.,
20115 296 559 Charter Communications
14824 257 281 NewSouth Communications Corp.
9929 254 320 China Netcom Corp.
3320 247 298 Deutsche Telekom AG
690 246 282 Merit Network
25844 244 244 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:823 13:1 15:5 16:2 17:3
20:8 24:751 32:65 33:1 38:70 40:53
44:4 55:1 56:3 57:16 61:433 62:501
63:1814 64:1984 65:2028 66:2606 67:330 68:500
69:579 70:64 80:500 81:319 82:177 83:80
84:3 128:150 129:186 130:76 131:175 132:21
133:1 134:182 135:17 136:182 137:54 138:153
139:36 140:164 141:122 142:119 143:55 144:90
145:41 146:303 147:78 148:417 149:118 150:95
151:71 152:165 153:64 154:1 155:117 156:60
157:60 158:145 159:147 160:52 161:62 162:379
163:77 164:180 165:158 166:93 167:216 168:224
169:162 170:285 171:8 192:5554 193:2773 194:2049
195:1361 196:552 198:3694 199:3087 200:3530 201:8
202:4657 203:5608 204:3100 205:2082 206:2289 207:2499
208:2223 209:2915 210:1415 211:555 212:984 213:1202
214:62 215:30 216:3705 217:936 218:167 219:110
220:233 221:30 222:39
End of report
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