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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 Wed 31 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114575
Prefixes after maximum aggregation: 74011
Unique aggregates announced to Internet: 54436
Total ASes present in the Internet Routing Table: 13458
Origin-only ASes present in the Internet Routing Table: 11648
Origin ASes announcing only one prefix: 5164
Transit ASes present in the Internet Routing Table: 1810
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: 6
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: 1165073349
Equivalent to 69 /8s, 113 /16s and 155 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46618
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18969
Total APNIC prefixes after maximum aggregation: 11235
Prefixes being announced from the APNIC address blocks: 17451
Unique aggregates announced from the APNIC address blocks: 10573
APNIC Region origin ASes present in the Internet Routing Table: 1572
APNIC Region origin ASes announcing only one prefix: 510
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89775968
Equivalent to 5 /8s, 89 /16s and 223 /24s
Percentage of available APNIC address space announced: 59.0
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: 76148
Total ARIN prefixes after maximum aggregation: 48183
Prefixes being announced from the ARIN address blocks: 53978
Unique aggregates announced from the ARIN address blocks: 17847
ARIN Region origin ASes present in the Internet Routing Table: 7918
ARIN Region origin ASes announcing only one prefix: 2537
ARIN Region transit ASes present in the Internet Routing Table: 782
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193903936
Equivalent to 11 /8s, 142 /16s and 189 /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: 19458
Total RIPE prefixes after maximum aggregation: 14593
Prefixes being announced from the RIPE address blocks: 16141
Unique aggregates announced from the RIPE address blocks: 10483
RIPE Region origin ASes present in the Internet Routing Table: 3917
RIPE Region origin ASes announcing only one prefix: 2117
RIPE Region transit ASes present in the Internet Routing Table: 737
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112847648
Equivalent to 6 /8s, 185 /16s and 235 /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 560 1278 26 China Education and Research
703 414 376 327 UUNET
2907 362 1832 340 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 298 20 97 Pakistan Telecom
4134 292 2142 103 Data Communications Bureau
4755 280 112 76 Videsh Sanchar Nigam Ltd. Aut
9443 254 45 69 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group)
9583 181 32 5 Satyam Infoway Ltd.,
17676 168 2610 33 XTAGE CORPORATION
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 129 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 120 186 39 Digital United Inc.
4621 115 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 898 2425 757 UUNET - Commercial IP service
3301 393 923 344 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 287 641 177 France Telecom Transpac
3352 275 531 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
786 176 1857 176 The JANET IP Service
8708 142 23 138 Romania Data Systems S.A.
3303 141 548 140 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 122 17 29 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 1808 9195 1368 UUNET Technologies, Inc.
7018 1316 7387 940 AT&T
3908 1020 1656 489 Supernet, Inc.
1239 831 3249 651 Sprint
852 755 1175 450 Telus Advanced Communications
1 692 8048 444 GENUITY
4323 640 442 264 Time Warner Communications, I
7843 618 361 242 Adelphia Corp.
7132 584 659 133 Southwestern Bell Internet Se
209 540 2025 348 Qwest
7046 529 887 327 UUNET Technologies, Inc.
690 518 75 328 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 451 164 54 Alltel Information Services,
3549 426 827 308 Global Crossing
2149 383 175 283 Performance Systems, Inc.
6197 377 611 37 BellSouth Network Solutions,
15290 377 297 193 AT&T Canada IES
2914 366 2082 366 Verio, Inc.
6347 343 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 560 534 China Education and Research
3908 1020 531 Supernet, Inc.
7132 584 451 Southwestern Bell Internet Se
7029 451 397 Alltel Information Services,
7018 1316 376 AT&T
4323 640 376 Time Warner Communications, I
7843 618 376 Adelphia Corp.
1221 1252 356 Telstra Pty Ltd
6197 377 340 BellSouth Network Solutions,
852 755 305 Telus Advanced Communications
4151 289 273 USDA
1657 274 272 University of Louisville
6347 343 268 SAVVIS Communications Corpora
4355 324 255 EarthLink, Inc.
1 692 248 GENUITY
3352 275 244 Ibernet, Internet Access Netw
18566 236 232 Covad Communications
7066 485 231 Virginia Polytechnic Institut
7303 270 210 Telecom Argentina Stet-France
4755 280 204 Videsh Sanchar Nigam Ltd. Aut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23323 UNALLOCATED 192.235.0.0/23 2914 Verio, Inc.
23323 UNALLOCATED 192.235.0.0/20 2914 Verio, Inc.
23323 UNALLOCATED 192.235.2.0/23 2150 California State Uni
23323 UNALLOCATED 192.235.4.0/22 2150 California State Uni
23323 UNALLOCATED 192.235.8.0/21 2150 California State Uni
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 /8:18 /9:6 /10:7 /11:12 /12:36
/13:86 /14:235 /15:415 /16:7272 /17:1462 /18:2659
/19:7711 /20:7487 /21:5286 /22:8004 /23:9747 /24:63311
/25:204 /26:174 /27:99 /28:86 /29:74 /30:114
/31:0 /32:70
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 597 1020 Supernet, Inc.
702 542 898 UUNET - Commercial IP service
701 493 1808 UUNET Technologies, Inc.
690 463 518 Merit Network
7843 421 618 Adelphia Corp.
7066 388 485 Virginia Polytechnic Institut
7018 372 1316 AT&T
7029 356 451 Alltel Information Services,
1657 273 274 University of Louisville
6197 262 377 BellSouth Network Solutions,
6198 240 313 BellSouth Network Solutions,
3301 233 393 TeliaNet Sweden
18566 232 236 Covad Communications
3215 220 287 France Telecom Transpac
209 216 540 Qwest
1239 213 831 Sprint
3352 201 275 Ibernet, Internet Access Netw
3320 200 268 Deutsche Telekom AG
1 195 692 GENUITY
7046 195 529 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:523 13:10 15:2 17:6 20:3
24:701 25:1 32:41 38:9 40:6 44:1
57:13 61:323 62:236 63:1862 64:1220 65:1414
66:995 67:93 68:75 80:253 81:36 128:65
129:133 130:22 131:53 132:11 133:2 134:119
135:9 136:345 137:95 138:131 139:72 140:175
141:41 142:70 143:55 144:143 145:17 146:189
147:141 148:244 149:79 150:40 151:65 152:269
153:36 154:12 155:115 156:70 157:128 158:70
159:134 160:19 161:75 162:213 163:92 164:265
165:132 166:219 167:258 168:295 169:60 170:243
171:3 192:5455 193:2373 194:2101 195:928 196:414
198:3612 199:3186 200:2623 202:3295 203:4747 204:3271
205:2184 206:2658 207:2526 208:2606 209:2690 210:601
211:238 212:913 213:673 214:9 215:20 216:2839
217:468 218:30 219:1
End of report
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