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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 Tue 08 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 106848
Prefixes after maximum aggregation: 71388
Unique aggregates announced to Internet: 52067
Total ASes present in the Internet Routing Table: 12286
Origin-only ASes present in the Internet Routing Table: 10678
Origin ASes announcing only one prefix: 4627
Transit ASes present in the Internet Routing Table: 1608
Transit-only ASes present in the Internet Routing Table: 49
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 13
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1160294400
Equivalent to 69 /8s, 40 /16s and 176 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71380
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16818
Total APNIC prefixes after maximum aggregation: 10381
Prefixes being announced from the APNIC address blocks: 15499
Unique aggregates announced from the APNIC address blocks: 9754
APNIC Region origin ASes present in the Internet Routing Table: 1417
APNIC Region origin ASes announcing only one prefix: 460
APNIC Region transit ASes present in the Internet Routing Table: 245
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78353088
Equivalent to 4 /8s, 171 /16s and 146 /24s
Percentage of available APNIC address space announced: 57.9
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: 72177
Total ARIN prefixes after maximum aggregation: 47104
Prefixes being announced from the ARIN address blocks: 51874
Unique aggregates announced from the ARIN address blocks: 17027
ARIN Region origin ASes present in the Internet Routing Table: 7279
ARIN Region origin ASes announcing only one prefix: 2257
ARIN Region transit ASes present in the Internet Routing Table: 719
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182424000
Equivalent to 10 /8s, 223 /16s and 145 /24s
Percentage of available ARIN address space announced: 68.0
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
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: 17842
Total RIPE prefixes after maximum aggregation: 13903
Prefixes being announced from the RIPE address blocks: 14563
Unique aggregates announced from the RIPE address blocks: 9716
RIPE Region origin ASes present in the Internet Routing Table: 3542
RIPE Region origin ASes announcing only one prefix: 1910
RIPE Region transit ASes present in the Internet Routing Table: 636
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105469184
Equivalent to 6 /8s, 73 /16s and 85 /24s
Percentage of available RIPE address space announced: 69.8
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
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 1345 1259 987 Telstra Pty Ltd
4538 423 1082 14 China Education and Research
2764 402 378 376 connect.com.au pty ltd
703 399 337 306 UUNET Technologies, Inc.
2907 393 1908 363 SINET Japan
7474 310 285 202 Optus Communications Pty Ltd
4755 301 116 81 Videsh Sanchar Nigam Ltd. Aut
4134 268 1874 98 Data Communications Bureau
4766 193 1396 143 Korea Internet Exchange for "
17557 177 14 86 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
9583 155 32 5 Satyam Infoway Ltd.,
4740 147 34 121 OzEmail ISP
9768 145 381 88 Korea Telecom
4812 143 288 36 China Telecom (Group) - Shang
7657 124 21 84 The Internet Group Limited
17676 121 1920 7 XTAGE CORPORATION
4780 116 186 40 Digital United Inc.
4713 115 894 102 NTT Communications Corporatio
9800 111 194 20 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1092 2668 858 UUNET Technologies, Inc.
3301 400 925 352 TeliaNet Sweden
1257 250 489 247 SWIPnet Swedish IP Network
680 232 2148 230 DFN-IP service G-WiN
3215 232 562 151 France Telecom / &Equant
5515 216 705 176 Sonera Finland Autonomous Sys
3320 201 1961 169 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
5400 148 60 85 Concert European Core Network
8708 147 20 138 Romania Data Systems S.A.
5549 141 78 63 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 126 575 124 Swisscom Ltd
3269 115 663 70 TELECOM ITALIA
12302 111 7 35 MobiFon S.A.
517 108 230 106 KPNQwest Germany GmbH
8297 108 31 62 Teleglobe Autonomous System i
1290 97 412 72 PSINet UK Ltd.
5511 95 192 79 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2134 8803 1521 UUNET Technologies, Inc.
7018 1140 7461 888 AT&T
1 878 8409 648 BBN Planet
3967 807 358 367 Exodus Communication
1239 777 3208 603 Sprint
3908 773 1638 475 Supernet, Inc.
8010 714 62 11 PublicNet Communications, Inc
7046 686 822 440 UUNET Technologies, Inc.
4323 586 380 202 Time Warner Communications, I
852 552 961 373 Telus Advanced Communications
690 535 92 312 Merit Network
209 512 1861 295 Qwest
705 475 349 296 UUNET Technologies, Inc.
2914 459 2210 430 Verio, Inc.
3549 402 835 199 Global Crossing
7132 402 470 168 Southwestern Bell Internet Se
2149 398 230 334 Performance Systems, Inc.
3561 375 2252 326 Cable & Wireless USA
4151 363 704 16 USDA
577 352 588 220 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
8010 714 703 PublicNet Communications, Inc
3967 807 440 Exodus Communication
4538 423 409 China Education and Research
4323 586 384 Time Warner Communications, I
1221 1345 358 Telstra Pty Ltd
4151 363 347 USDA
3908 773 298 Supernet, Inc.
11371 278 271 Rhythms NetConnections
7018 1140 252 AT&T
7046 686 246 UUNET Technologies, Inc.
6347 318 238 SAVVIS Communications Corpora
702 1092 234 UUNET Technologies, Inc.
7132 402 234 Southwestern Bell Internet Se
1 878 230 BBN Planet
690 535 223 Merit Network
4755 301 220 Videsh Sanchar Nigam Ltd. Aut
209 512 217 Qwest
3549 402 203 Global Crossing
4355 229 199 EarthLink, Inc.
7843 233 190 Adelphia Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
65021 PRIVATE 203.75.135.0/27 3462 Data Communication B
65022 PRIVATE 203.75.135.32/27 3462 Data Communication B
65021 PRIVATE 203.75.210.129/32 3462 Data Communication B
65021 PRIVATE 203.75.210.130/32 3462 Data Communication B
65021 PRIVATE 203.75.210.131/32 3462 Data Communication B
65021 PRIVATE 203.75.210.132/32 3462 Data Communication B
65022 PRIVATE 203.75.210.137/32 3462 Data Communication B
65022 PRIVATE 203.75.210.138/32 3462 Data Communication B
65021 PRIVATE 203.75.232.0/27 3462 Data Communication B
65022 PRIVATE 203.75.232.32/27 3462 Data Communication B
65021 PRIVATE 203.75.232.160/27 3462 Data Communication B
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
134.137.0.0/16 400 Headquarters Standard Systems
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.34.0.0/15 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
191.9.200.0/24 1290 PSINet UK Ltd.
201.115.100.0/24 7018 AT&T
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 /12:38
/13:92 /14:231 /15:393 /16:7111 /17:1382 /18:2487
/19:7207 /20:6473 /21:4807 /22:7169 /23:8813 /24:59788
/25:217 /26:219 /27:131 /28:82 /29:72 /30:65
/31:0 /32:28
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1364 2134 UUNET Technologies, Inc.
1221 1199 1345 Telstra Pty Ltd
702 709 1092 UUNET Technologies, Inc.
8010 698 714 PublicNet Communications, Inc
3967 624 807 Exodus Communication
7018 598 1140 AT&T
690 531 535 Merit Network
3908 531 773 Supernet, Inc.
7046 520 686 UUNET Technologies, Inc.
4323 496 586 Time Warner Communications, I
1 452 878 BBN Planet
1239 452 777 Sprint
705 358 475 UUNET Technologies, Inc.
2764 356 402 connect.com.au pty ltd
852 348 552 Telus Advanced Communications
209 338 512 Qwest
703 326 399 UUNET Technologies, Inc.
4151 316 363 USDA
2149 300 398 Performance Systems, Inc.
7474 275 310 Optus Communications Pty Ltd
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:443 13:10 15:2 17:5
20:1 24:776 25:1 32:73 38:13 40:4
43:1 44:2 52:1 57:13 61:212 62:176
63:1902 64:1484 65:967 66:757 67:21 68:13
80:123 128:64 129:117 130:24 131:41 132:14
133:2 134:107 135:10 136:46 137:102 138:62
139:30 140:101 141:57 142:53 143:43 144:57
145:12 146:200 147:93 148:158 149:88 150:39
151:37 152:379 153:34 154:4 155:82 156:83
157:121 158:71 159:77 160:26 161:54 162:86
163:111 164:119 165:103 166:204 167:160 168:113
169:47 170:279 171:2 191:1 192:5316 193:2052
194:2058 195:850 196:429 198:3691 199:3308 200:2380
201:1 202:2837 203:4459 204:3256 205:2176 206:2580
207:2643 208:2603 209:2975 210:507 211:152 212:877
213:528 214:9 215:17 216:2947 217:408 218:12
End of report
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