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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 26 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114301
Prefixes after maximum aggregation: 74045
Unique aggregates announced to Internet: 54685
Total ASes present in the Internet Routing Table: 13448
Origin-only ASes present in the Internet Routing Table: 11641
Origin ASes announcing only one prefix: 5154
Transit ASes present in the Internet Routing Table: 1807
Transit-only ASes present in the Internet Routing Table: 48
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: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1161595844
Equivalent to 69 /8s, 60 /16s and 139 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46284
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18971
Total APNIC prefixes after maximum aggregation: 11212
Prefixes being announced from the APNIC address blocks: 17475
Unique aggregates announced from the APNIC address blocks: 10633
APNIC Region origin ASes present in the Internet Routing Table: 1578
APNIC Region origin ASes announcing only one prefix: 515
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89876320
Equivalent to 5 /8s, 91 /16s and 103 /24s
Percentage of available APNIC address space announced: 59.1
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: 75906
Total ARIN prefixes after maximum aggregation: 48221
Prefixes being announced from the ARIN address blocks: 53985
Unique aggregates announced from the ARIN address blocks: 18013
ARIN Region origin ASes present in the Internet Routing Table: 7906
ARIN Region origin ASes announcing only one prefix: 2528
ARIN Region transit ASes present in the Internet Routing Table: 780
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190252864
Equivalent to 11 /8s, 87 /16s and 7 /24s
Percentage of available ARIN address space announced: 70.9
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: 19417
Total RIPE prefixes after maximum aggregation: 14612
Prefixes being announced from the RIPE address blocks: 16114
Unique aggregates announced from the RIPE address blocks: 10485
RIPE Region origin ASes present in the Internet Routing Table: 3917
RIPE Region origin ASes announcing only one prefix: 2111
RIPE Region transit ASes present in the Internet Routing Table: 736
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112921632
Equivalent to 6 /8s, 187 /16s and 12 /24s
Percentage of available RIPE address space announced: 74.8
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 1249 1191 897 Telstra Pty Ltd
4538 541 1278 26 China Education and Research
703 413 360 326 UUNET
2907 362 1832 340 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 317 296 213 Optus Communications Pty Ltd
17557 296 20 103 Pakistan Telecom
4134 293 2142 103 Data Communications Bureau
4755 292 112 76 Videsh Sanchar Nigam Ltd. Aut
9443 253 45 68 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group)
9583 180 32 5 Satyam Infoway Ltd.,
17676 169 2626 32 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
7539 119 184 118 TANet2, sponsored by NSC, TAI
4621 115 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 898 2441 756 UUNET - Commercial IP service
3301 395 923 345 TeliaNet Sweden
5515 319 783 180 Sonera Solution Autonomous Sy
3215 277 640 175 France Telecom Transpac
3352 275 531 31 Ibernet, Internet Access Netw
3320 266 1964 205 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
719 182 306 127 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 141 548 140 Swisscom Ltd
8708 140 23 136 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 107 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 1822 9181 1375 UUNET Technologies, Inc.
7018 1316 7402 943 AT&T
3908 951 1653 492 Supernet, Inc.
1239 814 3245 642 Sprint
852 756 1175 452 Telus Advanced Communications
1 691 8067 442 GENUITY
4323 629 439 258 Time Warner Communications, I
7843 596 358 241 Adelphia Corp.
7132 583 659 133 Southwestern Bell Internet Se
209 536 2026 349 Qwest
7046 534 889 333 UUNET Technologies, Inc.
690 521 75 330 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 428 812 308 Global Crossing
2149 388 176 288 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 377 611 37 BellSouth Network Solutions,
2914 367 2083 367 Verio, Inc.
6347 343 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 541 515 China Education and Research
3908 951 459 Supernet, Inc.
7132 583 450 Southwestern Bell Internet Se
7029 463 407 Alltel Information Services,
7018 1316 373 AT&T
4323 629 371 Time Warner Communications, I
7843 596 355 Adelphia Corp.
1221 1249 352 Telstra Pty Ltd
6197 377 340 BellSouth Network Solutions,
852 756 304 Telus Advanced Communications
4151 289 273 USDA
6347 343 267 SAVVIS Communications Corpora
4355 324 255 EarthLink, Inc.
1 691 249 GENUITY
3352 275 244 Ibernet, Internet Access Netw
18566 236 232 Covad Communications
7066 485 231 Virginia Polytechnic Institut
7303 278 219 Telecom Argentina Stet-France
4755 292 216 Videsh Sanchar Nigam Ltd. Aut
1580 216 202 ANOSCEUR
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
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
192.72.0.0/18 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
192.172.0.0/19 568 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 /8:17 /9:6 /10:7 /11:12 /12:35
/13:86 /14:235 /15:415 /16:7276 /17:1458 /18:2663
/19:7703 /20:7470 /21:5253 /22:7976 /23:9740 /24:63292
/25:199 /26:158 /27:85 /28:74 /29:48 /30:72
/31:0 /32:21
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 542 898 UUNET - Commercial IP service
3908 529 951 Supernet, Inc.
701 502 1822 UUNET Technologies, Inc.
690 463 521 Merit Network
7843 401 596 Adelphia Corp.
7066 388 485 Virginia Polytechnic Institut
7018 370 1316 AT&T
7029 366 463 Alltel Information Services,
6197 262 377 BellSouth Network Solutions,
6198 237 310 BellSouth Network Solutions,
3301 233 395 TeliaNet Sweden
18566 232 236 Covad Communications
209 213 536 Qwest
3215 210 277 France Telecom Transpac
1239 203 814 Sprint
1580 203 216 ANOSCEUR
3352 200 275 Ibernet, Internet Access Netw
7046 199 534 UUNET Technologies, Inc.
3320 198 266 Deutsche Telekom AG
1 189 691 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:515 13:10 15:2 17:6 20:3
24:690 25:1 32:41 38:9 40:6 44:1
57:13 61:321 62:237 63:1894 64:1219 65:1409
66:997 67:91 68:67 80:251 81:40 128:65
129:131 130:22 131:53 132:11 133:2 134:124
135:8 136:244 137:95 138:151 139:72 140:169
141:121 142:79 143:45 144:143 145:17 146:189
147:139 148:242 149:80 150:39 151:66 152:269
153:34 154:14 155:115 156:70 157:124 158:70
159:134 160:19 161:74 162:214 163:91 164:263
165:132 166:219 167:178 168:295 169:59 170:242
171:3 192:5463 193:2376 194:2101 195:925 196:415
198:3624 199:3179 200:2610 202:3313 203:4783 204:3250
205:2209 206:2679 207:2525 208:2612 209:2721 210:595
211:238 212:902 213:662 214:9 215:20 216:2833
217:469 218:27
End of report
-----
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