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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 Fri 02 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114323
Prefixes after maximum aggregation: 73909
Unique aggregates announced to Internet: 54509
Total ASes present in the Internet Routing Table: 13476
Origin-only ASes present in the Internet Routing Table: 11654
Origin ASes announcing only one prefix: 5183
Transit ASes present in the Internet Routing Table: 1822
Transit-only ASes present in the Internet Routing Table: 52
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: 2
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: 1173813061
Equivalent to 69 /8s, 246 /16s and 247 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46499
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18823
Total APNIC prefixes after maximum aggregation: 11180
Prefixes being announced from the APNIC address blocks: 17330
Unique aggregates announced from the APNIC address blocks: 10599
APNIC Region origin ASes present in the Internet Routing Table: 1575
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 280
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 90127840
Equivalent to 5 /8s, 95 /16s and 61 /24s
Percentage of available APNIC address space announced: 59.3
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: 76027
Total ARIN prefixes after maximum aggregation: 48113
Prefixes being announced from the ARIN address blocks: 53896
Unique aggregates announced from the ARIN address blocks: 17879
ARIN Region origin ASes present in the Internet Routing Table: 7932
ARIN Region origin ASes announcing only one prefix: 2552
ARIN Region transit ASes present in the Internet Routing Table: 788
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193953088
Equivalent to 11 /8s, 143 /16s and 125 /24s
Percentage of available ARIN address space announced: 72.3
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: 19473
Total RIPE prefixes after maximum aggregation: 14616
Prefixes being announced from the RIPE address blocks: 16154
Unique aggregates announced from the RIPE address blocks: 10508
RIPE Region origin ASes present in the Internet Routing Table: 3917
RIPE Region origin ASes announcing only one prefix: 2112
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: 112874784
Equivalent to 6 /8s, 186 /16s and 85 /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 1251 1191 896 Telstra Pty Ltd
4538 561 1278 26 China Education and Research
703 414 376 326 UUNET
2907 363 1832 341 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 297 20 96 Pakistan Telecom
4134 293 2158 103 Data Communications Bureau
4755 280 112 76 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 211 79 16 China Telecom (Group)
9583 182 32 5 Satyam Infoway Ltd.,
9443 171 45 69 Primus Telecommunications
17676 171 2658 32 XTAGE CORPORATION
7539 149 191 144 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 115 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
702 900 2425 759 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 288 641 178 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 125 18 32 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 106 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 1316 7403 940 AT&T
3908 1030 1656 491 Supernet, Inc.
1239 829 3249 649 Sprint
852 756 1175 451 Telus Advanced Communications
1 693 8050 445 GENUITY
4323 640 442 264 Time Warner Communications, I
7843 611 364 248 Adelphia Corp.
7132 585 663 134 Southwestern Bell Internet Se
209 540 2009 346 Qwest
7046 524 887 325 UUNET Technologies, Inc.
690 520 75 331 Merit Network
7066 486 203 254 Virginia Polytechnic Institut
7029 454 164 54 Alltel Information Services,
3549 428 856 302 Global Crossing
6197 377 599 48 BellSouth Network Solutions,
15290 377 297 193 AT&T Canada IES
2914 364 2081 364 Verio, Inc.
2149 356 174 261 Performance Systems, Inc.
6347 344 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1030 539 Supernet, Inc.
4538 561 535 China Education and Research
7132 585 451 Southwestern Bell Internet Se
7029 454 400 Alltel Information Services,
7018 1316 376 AT&T
4323 640 376 Time Warner Communications, I
7843 611 363 Adelphia Corp.
1221 1251 355 Telstra Pty Ltd
6197 377 329 BellSouth Network Solutions,
852 756 305 Telus Advanced Communications
1657 279 277 University of Louisville
4151 289 273 USDA
6347 344 269 SAVVIS Communications Corpora
4355 324 255 EarthLink, Inc.
1 693 248 GENUITY
3352 275 244 Ibernet, Internet Access Netw
18566 237 233 Covad Communications
7066 486 232 Virginia Polytechnic Institut
7303 271 211 Telecom Argentina Stet-France
4755 280 204 Videsh Sanchar Nigam Ltd. Aut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26224 UNALLOCATED 66.0.125.0/24 701 UUNET Technologies,
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 /9:7 /10:7 /11:12 /12:36
/13:86 /14:235 /15:415 /16:7279 /17:1467 /18:2663
/19:7712 /20:7490 /21:5265 /22:7978 /23:9675 /24:63167
/25:198 /26:176 /27:98 /28:87 /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.
702 543 900 UUNET - Commercial IP service
701 494 1812 UUNET Technologies, Inc.
690 466 520 Merit Network
7843 412 611 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 373 1316 AT&T
7029 359 454 Alltel Information Services,
1657 278 279 University of Louisville
6197 263 377 BellSouth Network Solutions,
6198 241 314 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 233 237 Covad Communications
3215 220 288 France Telecom Transpac
209 219 540 Qwest
1239 212 829 Sprint
3320 201 269 Deutsche Telekom AG
3352 201 275 Ibernet, Internet Access Netw
1 195 693 GENUITY
7046 195 524 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:523 13:10 15:2 17:6 20:3
24:698 25:1 32:41 38:9 40:6 44:1
57:13 61:321 62:236 63:1865 64:1226 65:1418
66:970 67:94 68:73 80:254 81:37 128:64
129:132 130:22 131:54 132:11 133:2 134:122
135:9 136:344 137:95 138:84 139:73 140:175
141:43 142:70 143:50 144:143 145:17 146:189
147:142 148:243 149:79 150:40 151:66 152:271
153:36 154:12 155:115 156:70 157:128 158:70
159:134 160:19 161:75 162:214 163:87 164:264
165:131 166:219 167:259 168:295 169:60 170:231
171:3 192:5471 193:2370 194:2111 195:930 196:413
198:3621 199:3168 200:2642 202:3291 203:4739 204:3242
205:2166 206:2642 207:2510 208:2614 209:2688 210:588
211:237 212:907 213:674 214:9 215:20 216:2841
217:472 218:29
End of report
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