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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04:00 +10GMT Mon 29 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114874
Prefixes after maximum aggregation: 74040
Unique aggregates announced to Internet: 54671
Total ASes present in the Internet Routing Table: 13450
Origin-only ASes present in the Internet Routing Table: 11635
Origin ASes announcing only one prefix: 5161
Transit ASes present in the Internet Routing Table: 1815
Transit-only ASes present in the Internet Routing Table: 47
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: 10
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: 1161724869
Equivalent to 69 /8s, 62 /16s and 131 /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: 46866
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18967
Total APNIC prefixes after maximum aggregation: 11211
Prefixes being announced from the APNIC address blocks: 17477
Unique aggregates announced from the APNIC address blocks: 10603
APNIC Region origin ASes present in the Internet Routing Table: 1576
APNIC Region origin ASes announcing only one prefix: 511
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: 14
Number of APNIC addresses announced to Internet: 89879648
Equivalent to 5 /8s, 91 /16s and 116 /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: 76509
Total ARIN prefixes after maximum aggregation: 48231
Prefixes being announced from the ARIN address blocks: 54110
Unique aggregates announced from the ARIN address blocks: 18048
ARIN Region origin ASes present in the Internet Routing Table: 7909
ARIN Region origin ASes announcing only one prefix: 2531
ARIN Region transit ASes present in the Internet Routing Table: 787
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190309696
Equivalent to 11 /8s, 87 /16s and 229 /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: 19391
Total RIPE prefixes after maximum aggregation: 14598
Prefixes being announced from the RIPE address blocks: 16086
Unique aggregates announced from the RIPE address blocks: 10474
RIPE Region origin ASes present in the Internet Routing Table: 3919
RIPE Region origin ASes announcing only one prefix: 2119
RIPE Region transit ASes present in the Internet Routing Table: 738
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112862496
Equivalent to 6 /8s, 186 /16s and 37 /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 1245 1190 889 Telstra Pty Ltd
4538 560 1278 26 China Education and Research
703 414 376 327 UUNET
2907 361 1832 339 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 297 20 97 Pakistan Telecom
4134 293 2142 103 Data Communications Bureau
4755 293 112 77 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 184 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
702 897 2441 756 UUNET - Commercial IP service
3301 395 923 345 TeliaNet Sweden
5515 319 783 180 Sonera Solution Autonomous Sy
3215 278 640 177 France Telecom Transpac
3352 274 531 31 Ibernet, Internet Access Netw
3320 268 1964 207 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 141 23 137 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 121 17 28 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 1814 9180 1373 UUNET Technologies, Inc.
7018 1316 7370 941 AT&T
3908 1030 1658 498 Supernet, Inc.
1239 814 3244 641 Sprint
852 757 1175 452 Telus Advanced Communications
1 693 8064 444 GENUITY
4323 638 441 263 Time Warner Communications, I
7843 607 360 240 Adelphia Corp.
7132 583 659 133 Southwestern Bell Internet Se
209 543 2026 353 Qwest
7046 527 889 330 UUNET Technologies, Inc.
690 521 75 330 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 427 827 308 Global Crossing
1657 389 16 2 University of Louisville
2149 387 176 287 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 377 611 37 BellSouth Network Solutions,
577 368 488 216 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 560 534 China Education and Research
3908 1030 532 Supernet, Inc.
7132 583 450 Southwestern Bell Internet Se
7029 463 407 Alltel Information Services,
1657 389 387 University of Louisville
7018 1316 375 AT&T
4323 638 375 Time Warner Communications, I
7843 607 367 Adelphia Corp.
1221 1245 356 Telstra Pty Ltd
6197 377 340 BellSouth Network Solutions,
852 757 305 Telus Advanced Communications
4151 289 273 USDA
6347 344 268 SAVVIS Communications Corpora
4355 324 255 EarthLink, Inc.
1 693 249 GENUITY
3352 274 243 Ibernet, Internet Access Netw
18566 236 232 Covad Communications
7066 485 231 Virginia Polytechnic Institut
4755 293 216 Videsh Sanchar Nigam Ltd. Aut
7303 268 209 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
23323 UNALLOCATED 192.235.0.0/23 2914 Verio, Inc.
23323 UNALLOCATED 192.235.0.0/20 2914 Verio, Inc.
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 /16:7274 /17:1460 /18:2657
/19:7713 /20:7485 /21:5274 /22:8056 /23:9744 /24:63466
/25:202 /26:174 /27:100 /28:86 /29:74 /30:113
/31:0 /32:183
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 608 1030 Supernet, Inc.
702 542 897 UUNET - Commercial IP service
701 494 1814 UUNET Technologies, Inc.
690 463 521 Merit Network
7843 412 607 Adelphia Corp.
1657 388 389 University of Louisville
7066 388 485 Virginia Polytechnic Institut
7018 372 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
209 214 543 Qwest
3215 211 278 France Telecom Transpac
1239 205 814 Sprint
1580 203 216 ANOSCEUR
3320 200 268 Deutsche Telekom AG
3352 200 274 Ibernet, Internet Access Netw
7046 199 527 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:516 13:10 15:2 17:6 20:3
24:699 25:1 32:41 38:9 40:6 44:1
57:13 61:321 62:235 63:1898 64:1219 65:1409
66:997 67:91 68:67 80:245 81:41 128:65
129:131 130:22 131:53 132:10 133:2 134:121
135:5 136:345 137:95 138:151 139:72 140:165
141:121 142:79 143:47 144:143 145:17 146:189
147:139 148:242 149:80 150:38 151:66 152:269
153:34 154:14 155:115 156:70 157:128 158:70
159:134 160:19 161:74 162:214 163:90 164:266
165:132 166:219 167:257 168:295 169:60 170:242
171:3 192:5462 193:2365 194:2102 195:925 196:415
198:3622 199:3181 200:2595 202:3312 203:4761 204:3257
205:2206 206:2682 207:2536 208:2618 209:2730 210:598
211:237 212:904 213:662 214:9 215:20 216:2837
217:465 218:29
End of report
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