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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 11 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107232
Prefixes after maximum aggregation: 71370
Unique aggregates announced to Internet: 52095
Total ASes present in the Internet Routing Table: 12279
Origin-only ASes present in the Internet Routing Table: 10671
Origin ASes announcing only one prefix: 4614
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: 1
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: 1160328160
Equivalent to 69 /8s, 41 /16s and 51 /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: 71690
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17007
Total APNIC prefixes after maximum aggregation: 10409
Prefixes being announced from the APNIC address blocks: 15624
Unique aggregates announced from the APNIC address blocks: 9751
APNIC Region origin ASes present in the Internet Routing Table: 1420
APNIC Region origin ASes announcing only one prefix: 459
APNIC Region transit ASes present in the Internet Routing Table: 246
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78420544
Equivalent to 4 /8s, 172 /16s and 154 /24s
Percentage of available APNIC address space announced: 58.0
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72362
Total ARIN prefixes after maximum aggregation: 47060
Prefixes being announced from the ARIN address blocks: 51977
Unique aggregates announced from the ARIN address blocks: 17055
ARIN Region origin ASes present in the Internet Routing Table: 7277
ARIN Region origin ASes announcing only one prefix: 2255
ARIN Region transit ASes present in the Internet Routing Table: 720
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182787360
Equivalent to 10 /8s, 229 /16s and 29 /24s
Percentage of available ARIN address space announced: 68.1
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: 17863
Total RIPE prefixes after maximum aggregation: 13901
Prefixes being announced from the RIPE address blocks: 14594
Unique aggregates announced from the RIPE address blocks: 9712
RIPE Region origin ASes present in the Internet Routing Table: 3532
RIPE Region origin ASes announcing only one prefix: 1900
RIPE Region transit ASes present in the Internet Routing Table: 633
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105485824
Equivalent to 6 /8s, 73 /16s and 150 /24s
Percentage of available RIPE address space announced: 69.9
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 1241 993 Telstra Pty Ltd
4538 424 1082 14 China Education and Research
2764 400 378 374 connect.com.au pty ltd
703 396 337 303 UUNET Technologies, Inc.
2907 393 1923 362 SINET Japan
4755 335 114 93 Videsh Sanchar Nigam Ltd. Aut
7474 313 285 204 Optus Communications Pty Ltd
4134 268 1858 100 Data Communications Bureau
4766 198 1380 145 Korea Internet Exchange for "
17557 174 13 85 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
9583 158 32 5 Satyam Infoway Ltd.,
4740 145 34 119 OzEmail ISP
9768 145 381 88 Korea Telecom
1659 144 924 34 Taiwan Academic Network (TANe
7657 124 21 84 The Internet Group Limited
17676 121 1920 7 XTAGE CORPORATION
4780 117 186 40 Digital United Inc.
4713 115 894 102 NTT Communications Corporatio
9800 113 193 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1084 2635 859 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 253 489 247 SWIPnet Swedish IP Network
680 233 2149 231 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
8708 152 20 139 Romania Data Systems S.A.
5400 148 60 85 Concert European Core Network
5549 143 78 65 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 112 7 36 MobiFon S.A.
8297 111 37 63 Teleglobe Autonomous System i
517 108 230 106 KPNQwest Germany GmbH
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 2138 8777 1527 UUNET Technologies, Inc.
7018 1153 7487 896 AT&T
1 874 8393 647 BBN Planet
3908 799 1638 474 Supernet, Inc.
3967 785 361 339 Exodus Communication
1239 782 3172 605 Sprint
8010 715 62 11 PublicNet Communications, Inc
7046 681 820 437 UUNET Technologies, Inc.
4323 586 380 202 Time Warner Communications, I
852 582 979 384 Telus Advanced Communications
690 547 77 323 Merit Network
209 507 1860 295 Qwest
705 487 437 303 UUNET Technologies, Inc.
2914 460 2211 431 Verio, Inc.
7132 416 481 161 Southwestern Bell Internet Se
3549 400 830 200 Global Crossing
2149 392 214 328 Performance Systems, Inc.
3561 371 2220 318 Cable & Wireless USA
4151 363 704 16 USDA
577 353 588 221 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
8010 715 704 PublicNet Communications, Inc
3967 785 446 Exodus Communication
4538 424 410 China Education and Research
4323 586 384 Time Warner Communications, I
1221 1345 352 Telstra Pty Ltd
4151 363 347 USDA
3908 799 325 Supernet, Inc.
11371 278 271 Rhythms NetConnections
7018 1153 257 AT&T
7132 416 255 Southwestern Bell Internet Se
7046 681 244 UUNET Technologies, Inc.
4755 335 242 Videsh Sanchar Nigam Ltd. Aut
6347 323 240 SAVVIS Communications Corpora
1 874 227 BBN Planet
702 1084 225 UUNET Technologies, Inc.
690 547 224 Merit Network
7029 244 222 Alltel Information Services,
209 507 212 Qwest
3549 400 200 Global Crossing
4355 229 199 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 /14:230 /15:392 /16:7125 /17:1398 /18:2462
/19:7229 /20:6518 /21:4800 /22:7180 /23:8925 /24:60019
/25:209 /26:217 /27:122 /28:77 /29:69 /30:63
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1373 2138 UUNET Technologies, Inc.
1221 1198 1345 Telstra Pty Ltd
702 702 1084 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
7018 604 1153 AT&T
3967 599 785 Exodus Communication
3908 557 799 Supernet, Inc.
690 543 547 Merit Network
7046 518 681 UUNET Technologies, Inc.
4323 496 586 Time Warner Communications, I
1239 453 782 Sprint
1 448 874 BBN Planet
852 368 582 Telus Advanced Communications
705 357 487 UUNET Technologies, Inc.
2764 355 400 connect.com.au pty ltd
209 335 507 Qwest
703 323 396 UUNET Technologies, Inc.
4151 316 363 USDA
2149 295 392 Performance Systems, Inc.
4755 291 335 Videsh Sanchar Nigam Ltd. Aut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:450 13:10 15:2 17:5
20:1 24:776 25:1 32:74 38:13 40:4
43:1 44:2 52:1 57:14 61:226 62:161
63:1899 64:1498 65:973 66:752 67:23 68:15
80:136 128:62 129:118 130:23 131:41 132:14
133:2 134:104 135:10 136:45 137:101 138:62
139:30 140:70 141:57 142:49 143:41 144:57
145:12 146:201 147:94 148:161 149:88 150:38
151:43 152:386 153:34 154:7 155:83 156:81
157:118 158:72 159:79 160:26 161:54 162:118
163:122 164:118 165:112 166:219 167:162 168:113
169:47 170:280 171:2 191:1 192:5326 193:2053
194:2045 195:858 196:430 198:3698 199:3282 200:2396
201:1 202:2880 203:4494 204:3254 205:2155 206:2590
207:2687 208:2604 209:2964 210:534 211:152 212:878
213:533 214:9 215:17 216:2958 217:411 218:12
End of report
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