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Weekly Routing Table Report
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
For a graphical representation, please see http://www.apnic.net/stats/bgp.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 02 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114554
Prefixes after maximum aggregation: 74000
Unique aggregates announced to Internet: 54612
Total ASes present in the Internet Routing Table: 13482
Origin-only ASes present in the Internet Routing Table: 11667
Origin ASes announcing only one prefix: 5179
Transit ASes present in the Internet Routing Table: 1815
Transit-only ASes present in the Internet Routing Table: 51
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1190731541
Equivalent to 70 /8s, 249 /16s and 31 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46631
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18897
Total APNIC prefixes after maximum aggregation: 11224
Prefixes being announced from the APNIC address blocks: 17403
Unique aggregates announced from the APNIC address blocks: 10608
APNIC Region origin ASes present in the Internet Routing Table: 1581
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90250720
Equivalent to 5 /8s, 97 /16s and 29 /24s
Percentage of available APNIC address space announced: 59.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76161
Total ARIN prefixes after maximum aggregation: 48172
Prefixes being announced from the ARIN address blocks: 53959
Unique aggregates announced from the ARIN address blocks: 17941
ARIN Region origin ASes present in the Internet Routing Table: 7934
ARIN Region origin ASes announcing only one prefix: 2550
ARIN Region transit ASes present in the Internet Routing Table: 783
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193938192
Equivalent to 11 /8s, 143 /16s and 67 /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 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19496
Total RIPE prefixes after maximum aggregation: 14604
Prefixes being announced from the RIPE address blocks: 16178
Unique aggregates announced from the RIPE address blocks: 10532
RIPE Region origin ASes present in the Internet Routing Table: 3916
RIPE Region origin ASes announcing only one prefix: 2112
RIPE Region transit ASes present in the Internet Routing Table: 740
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112763936
Equivalent to 6 /8s, 184 /16s and 164 /24s
Percentage of available RIPE address space announced: 74.7
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
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1252 1191 896 Telstra Pty Ltd
4538 562 1279 27 China Education and Research
703 414 376 326 UUNET
2907 364 1848 342 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 297 20 95 Pakistan Telecom
4134 293 2158 103 Data Communications Bureau
4755 291 112 77 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 182 32 5 Satyam Infoway Ltd.,
17676 172 2674 32 XTAGE CORPORATION
9443 170 45 68 Primus Telecommunications
7539 147 189 142 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 133 22 91 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 116 11 63 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 896 2423 755 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3352 275 531 31 Ibernet, Internet Access Netw
3320 269 1965 208 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 209 85 97 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 143 23 139 Romania Data Systems S.A.
3303 141 548 140 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1812 9242 1369 UUNET Technologies, Inc.
7018 1317 7402 941 AT&T
3908 1030 1656 490 Supernet, Inc.
1239 830 3249 650 Sprint
852 754 1175 451 Telus Advanced Communications
1 695 8050 445 GENUITY
4323 638 442 262 Time Warner Communications, I
7843 613 364 246 Adelphia Corp.
7132 588 663 135 Southwestern Bell Internet Se
209 542 2025 343 Qwest
7046 524 887 325 UUNET Technologies, Inc.
690 520 75 331 Merit Network
7066 486 203 254 Virginia Polytechnic Institut
7029 452 164 54 Alltel Information Services,
3549 448 821 316 Global Crossing
6197 378 599 48 BellSouth Network Solutions,
15290 376 297 192 AT&T Canada IES
2149 368 174 271 Performance Systems, Inc.
2914 363 2081 363 Verio, Inc.
6347 344 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1030 540 Supernet, Inc.
4538 562 535 China Education and Research
7132 588 453 Southwestern Bell Internet Se
7029 452 398 Alltel Information Services,
7018 1317 376 AT&T
4323 638 376 Time Warner Communications, I
7843 613 367 Adelphia Corp.
1221 1252 356 Telstra Pty Ltd
6197 378 330 BellSouth Network Solutions,
852 754 303 Telus Advanced Communications
1657 279 277 University of Louisville
4151 289 273 USDA
6347 344 269 SAVVIS Communications Corpora
4355 326 256 EarthLink, Inc.
1 695 250 GENUITY
3352 275 244 Ibernet, Internet Access Netw
18566 237 233 Covad Communications
7066 486 232 Virginia Polytechnic Institut
4755 291 214 Videsh Sanchar Nigam Ltd. Aut
7303 271 211 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.108.46.0/23 680 DFN-IP service G-WiN
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:7 /10:7 /11:12 /12:36
/13:86 /14:232 /15:415 /16:7285 /17:1472 /18:2665
/19:7710 /20:7498 /21:5282 /22:8005 /23:9672 /24:63338
/25:198 /26:177 /27:98 /28:88 /29:67 /30:113
/31:0 /32:72
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 606 1030 Supernet, Inc.
702 540 896 UUNET - Commercial IP service
701 494 1812 UUNET Technologies, Inc.
690 466 520 Merit Network
7843 414 613 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 374 1317 AT&T
7029 357 452 Alltel Information Services,
1657 278 279 University of Louisville
6197 264 378 BellSouth Network Solutions,
6198 243 316 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 233 237 Covad Communications
3215 221 289 France Telecom Transpac
209 220 542 Qwest
1239 213 830 Sprint
1580 201 214 ANOSCEUR
3320 201 269 Deutsche Telekom AG
3352 201 275 Ibernet, Internet Access Netw
1 195 695 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:525 13:10 15:2 17:6 20:3
24:699 25:1 32:41 38:9 40:6 44:1
57:13 61:326 62:236 63:1866 64:1227 65:1418
66:971 67:95 68:74 80:255 81:37 128:64
129:132 130:22 131:55 132:11 133:2 134:122
135:9 136:344 137:95 138:151 139:72 140:175
141:43 142:70 143:50 144:144 145:17 146:189
147:142 148:243 149:79 150:40 151:66 152:271
153:36 154:12 155:115 156:70 157:128 158:70
159:134 160:19 161:75 162:214 163:86 164:264
165:132 166:218 167:259 168:293 169:60 170:232
171:3 192:5467 193:2370 194:2114 195:909 196:414
198:3628 199:3155 200:2647 202:3308 203:4747 204:3256
205:2180 206:2652 207:2511 208:2611 209:2685 210:591
211:240 212:893 213:726 214:9 215:20 216:2847
217:475 218:31
End of report
-----
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