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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 07 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113547
Prefixes after maximum aggregation: 73217
Unique aggregates announced to Internet: 52497
Total ASes present in the Internet Routing Table: 13200
Origin-only ASes present in the Internet Routing Table: 11438
Origin ASes announcing only one prefix: 5038
Transit ASes present in the Internet Routing Table: 1762
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1196851020
Equivalent to 71 /8s, 86 /16s and 127 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 46204
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18312
Total APNIC prefixes after maximum aggregation: 10989
Prefixes being announced from the APNIC address blocks: 16771
Unique aggregates announced from the APNIC address blocks: 9812
APNIC Region origin ASes present in the Internet Routing Table: 1528
APNIC Region origin ASes announcing only one prefix: 503
APNIC Region transit ASes present in the Internet Routing Table: 269
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 90167136
Equivalent to 5 /8s, 95 /16s and 215 /24s
Percentage of available APNIC address space announced: 66.7
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76027
Total ARIN prefixes after maximum aggregation: 47739
Prefixes being announced from the ARIN address blocks: 54204
Unique aggregates announced from the ARIN address blocks: 16626
ARIN Region origin ASes present in the Internet Routing Table: 7785
ARIN Region origin ASes announcing only one prefix: 2482
ARIN Region transit ASes present in the Internet Routing Table: 768
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 193158852
Equivalent to 11 /8s, 131 /16s and 94 /24s
Percentage of available ARIN address space announced: 72.0
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: 19208
Total RIPE prefixes after maximum aggregation: 14489
Prefixes being announced from the RIPE address blocks: 15904
Unique aggregates announced from the RIPE address blocks: 10511
RIPE Region origin ASes present in the Internet Routing Table: 3831
RIPE Region origin ASes announcing only one prefix: 2053
RIPE Region transit ASes present in the Internet Routing Table: 709
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 110206496
Equivalent to 6 /8s, 145 /16s and 158 /24s
Percentage of available RIPE address space announced: 73.0
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 1261 1206 904 Telstra Pty Ltd
4538 490 1258 18 China Education and Research
703 403 349 323 UUNET Technologies, Inc.
2907 387 1876 360 SINET Japan
2764 378 359 344 connect.com.au pty ltd
7474 310 291 203 Optus Communications Pty Ltd
17557 296 20 107 Pakistan Telecom
4134 289 2132 102 Data Communications Bureau
4755 270 114 77 Videsh Sanchar Nigam Ltd. Aut
9443 269 45 65 Primus Telecommunications
4766 225 1516 156 Korea Internet Exchange for "
4814 184 71 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 171 32 5 Satyam Infoway Ltd.,
7539 151 202 146 TANet2, sponsored by NSC, TAI
9768 147 387 76 Korea Telecom
17676 146 2258 23 XTAGE CORPORATION
7657 136 22 86 The Internet Group Limited
4780 116 186 39 Digital United Inc.
9800 115 187 23 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1021 2621 845 UUNET Technologies, Inc.
3301 397 908 348 TeliaNet Sweden
5515 286 783 176 Sonera Finland Autonomous Sys
3352 278 537 27 Ibernet, Internet Access Netw
3215 263 598 162 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 233 1948 186 Deutsche Telekom AG
1257 206 430 203 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 190 290 128 LANLINK autonomous system
786 179 1873 178 The JANET IP Service
8708 139 23 132 Romania Data Systems S.A.
12302 128 10 40 MobiFon S.A.
2856 125 789 115 BTnet UK Regional network
3303 117 546 116 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 107 300 101 Song Networks / Clinet
3233 103 7 56 RNC - Romanian Natioanal R&D
2830 98 251 73 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2017 9086 1423 UUNET Technologies, Inc.
7018 1290 7548 937 AT&T
3908 900 1642 490 Supernet, Inc.
1239 818 3430 652 Sprint
852 803 1192 451 Telus Advanced Communications
1 801 8148 449 GENUITY
705 797 180 274 UUNET Technologies, Inc.
7046 631 901 424 UUNET Technologies, Inc.
4323 628 436 258 Time Warner Communications, I
209 602 1973 336 Qwest
690 584 80 372 Merit Network
7132 572 609 136 Southwestern Bell Internet Se
7843 510 361 78 Adelphia Corp.
3549 498 857 323 Global Crossing
7066 476 202 249 Virginia Polytechnic Institut
2914 394 2108 387 Verio, Inc.
15290 387 299 201 AT&T Canada IES
3741 344 731 236 The Internet Solution
6197 344 246 169 BellSouth Network Solutions,
6347 341 370 79 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
705 797 523 UUNET Technologies, Inc.
4538 490 472 China Education and Research
7132 572 436 Southwestern Bell Internet Se
7843 510 432 Adelphia Corp.
3908 900 410 Supernet, Inc.
4323 628 370 Time Warner Communications, I
1221 1261 357 Telstra Pty Ltd
7018 1290 353 AT&T
852 803 352 Telus Advanced Communications
1 801 352 GENUITY
11371 292 286 Rhythms NetConnections
4151 286 270 USDA
209 602 266 Qwest
6347 341 262 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
7029 263 248 Alltel Information Services,
4355 284 242 EarthLink, Inc.
7066 476 227 Virginia Polytechnic Institut
18566 223 219 Covad Communications
4454 239 216 OIR Telecommunications, State
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 1103 SURFnet BV
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
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
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
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
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 /8:21 /9:6 /10:7 /11:12 /12:34
/13:86 /14:233 /15:415 /16:7236 /17:1447 /18:2604
/19:7604 /20:7216 /21:5094 /22:7825 /23:9512 /24:63462
/25:213 /26:189 /27:79 /28:88 /29:47 /30:83
/31:1 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 624 1021 UUNET Technologies, Inc.
705 593 797 UUNET Technologies, Inc.
701 566 2017 UUNET Technologies, Inc.
3908 489 900 Supernet, Inc.
690 462 584 Merit Network
7066 381 476 Virginia Polytechnic Institut
7018 338 1290 AT&T
7843 309 510 Adelphia Corp.
7046 271 631 UUNET Technologies, Inc.
209 270 602 Qwest
1 259 801 GENUITY
7029 248 263 Alltel Information Services,
6197 247 344 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 397 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
18566 219 223 Covad Communications
6517 218 240 Yipes Communications, Inc.
1239 209 818 Sprint
1580 203 233 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:510 13:10 15:2 17:6
20:2 24:777 25:1 32:41 38:8 40:6
44:1 57:13 61:251 62:191 63:1942 64:1246
65:1618 66:939 67:85 68:163 80:237 81:28
128:61 129:136 130:23 131:51 132:11 133:3
134:118 135:8 136:245 137:91 138:150 139:58
140:174 141:120 142:82 143:37 144:151 145:13
146:174 147:138 148:201 149:91 150:40 151:97
152:270 153:34 154:14 155:99 156:76 157:125
158:69 159:127 160:18 161:69 162:154 163:99
164:275 165:130 166:229 167:172 168:123 169:57
170:360 171:2 192:5492 193:2372 194:2107 195:949
196:434 198:3705 199:3222 200:2526 202:3144 203:4570
204:3251 205:2176 206:2570 207:2725 208:2667 209:2749
210:587 211:224 212:918 213:638 214:9 215:19
216:3013 217:458 218:40 219:41
End of report
-----
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