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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 15 Dec, 2001
Analysis Summary
----------------
BGP routing table entries examined: 107700
Total ASes present in the Internet Routing Table: 12281
Origin-only ASes present in the Internet Routing Table: 10661
Origin ASes announcing only one prefix: 4614
Transit ASes present in the Internet Routing Table: 1620
Transit-only ASes present in the Internet Routing Table: 57
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: 12
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1262463175
Equivalent to 75 /8s, 63 /16s and 168 /24s
Percentage of available address space announced: 34.1
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72490
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16996
Prefixes being announced from the APNIC address blocks: 15414
APNIC Region origin ASes present in the Internet Routing Table: 1421
APNIC Region origin ASes announcing only one prefix: 465
APNIC Region transit ASes present in the Internet Routing Table: 239
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 90679202
Equivalent to 5 /8s, 103 /16s and 167 /24s
Percentage of available APNIC address space announced: 67.0
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: 72849
Prefixes being announced from the ARIN address blocks: 52275
ARIN Region origin ASes present in the Internet Routing Table: 7281
ARIN Region origin ASes announcing only one prefix: 2243
ARIN Region transit ASes present in the Internet Routing Table: 741
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 224017838
Equivalent to 13 /8s, 90 /16s and 61 /24s
Percentage of available ARIN address space announced: 83.5
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: 17849
Prefixes being announced from the RIPE address blocks: 14561
RIPE Region origin ASes present in the Internet Routing Table: 3523
RIPE Region origin ASes announcing only one prefix: 1906
RIPE Region transit ASes present in the Internet Routing Table: 626
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 112098460
Equivalent to 6 /8s, 174 /16s and 124 /24s
Percentage of available RIPE address space announced: 74.2
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 Description
1221 1507 1327 Telstra Pty Ltd
2764 401 376 connect.com.au pty ltd
703 392 337 UUNET Technologies, Inc.
2907 370 1831 SINET Japan
7474 308 287 Optus Communications Pty Ltd
4755 305 160 Videsh Sanchar Nigam Ltd. Aut
4134 263 1941 Data Communications Bureau
4766 187 1421 Korea Internet Exchange for "
1659 175 1161 Taiwan Academic Network (TANe
9443 171 61 Primus Telecommunications
4740 169 40 OzEmail ISP
17557 169 13 Pakistan Telecom
2521 156 171 PSINet Japan
9583 150 64 Satyam Infoway Ltd.,
7539 149 135 TANet2, sponsored by NSC, TAI
4812 137 305 China Telecom (Group) - Shang
9768 129 363 Korea Telecom
17676 125 1952 XTAGE CORPORATION
4713 120 942 NTT Communications Corporatio
7657 118 23 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1086 2752 UUNET Technologies, Inc.
3301 430 934 TeliaNet Sweden
1257 267 499 SWIPnet Swedish IP Network
3215 237 543 France Telecom / &Equant
680 233 2149 DFN-IP service G-WiN
5515 215 705 Sonera Finland Autonomous Sys
3320 186 1960 Deutsche Telekom AG
786 182 1874 The JANET IP Service
719 164 292 LANLINK autonomous system
8708 149 20 Romania Data Systems S.A.
5400 145 64 Concert European Core Network
2856 136 778 BTnet UK Regional network
3303 134 577 Swisscom Ltd
5549 120 82 Nextra Deutschland GmbH + Co.
8895 116 110 Saudi Arabia AS
3269 113 827 TELECOM ITALIA
12302 112 7 MobiFon S.A.
517 109 231 KPNQwest Germany GmbH
8297 107 31 Teleglobe Autonomous System i
1290 96 396 PSINet UK Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2177 9040 UUNET Technologies, Inc.
7018 1081 7356 AT&T
3967 975 466 Exodus Communication
1 856 8522 BBN Planet
1239 775 3436 Sprint
8010 719 106 PublicNet Communications, Inc
7046 718 876 UUNET Technologies, Inc.
3908 716 1668 Supernet, Inc.
209 616 2249 Qwest
4323 584 477 Time Warner Communications, I
852 574 995 Telus Advanced Communications
690 527 76 Merit Network
705 472 348 UUNET Technologies, Inc.
2914 470 2235 Verio, Inc.
2149 409 231 Performance Systems, Inc.
3549 404 888 Global Crossing
3561 396 2314 Cable & Wireless USA
7132 387 535 Southwestern Bell Internet Se
3741 350 766 The Internet Solution
577 346 592 Bell Advanced Communications
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2177 9040 UUNET Technologies, Inc.
1221 1507 1327 Telstra Pty Ltd
702 1086 2752 UUNET Technologies, Inc.
7018 1081 7356 AT&T
3967 975 466 Exodus Communication
1 856 8522 BBN Planet
1239 775 3436 Sprint
8010 719 106 PublicNet Communications, Inc
7046 718 876 UUNET Technologies, Inc.
3908 716 1668 Supernet, Inc.
209 616 2249 Qwest
4323 584 477 Time Warner Communications, I
852 574 995 Telus Advanced Communications
690 527 76 Merit Network
705 472 348 UUNET Technologies, Inc.
2914 470 2235 Verio, Inc.
3301 430 934 TeliaNet Sweden
2149 409 231 Performance Systems, Inc.
3549 404 888 Global Crossing
2764 401 376 connect.com.au pty ltd
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
22795 UNALLOCATED 63.108.192.0/20 3385 Long Island Informat
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
65025 PRIVATE 168.95.70.0/24 3462 Data Communication B
65025 PRIVATE 168.95.71.0/24 3462 Data Communication B
65025 PRIVATE 168.95.86.32/27 3462 Data Communication B
65026 PRIVATE 168.95.86.128/27 3462 Data Communication B
65026 PRIVATE 168.95.160.0/24 3462 Data Communication B
65026 PRIVATE 168.95.161.0/24 3462 Data Communication B
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
21337 UNALLOCATED 195.34.112.0/24 8866 Bulgarian Telecommun
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
21337 UNALLOCATED 212.39.67.0/24 8866 Bulgarian Telecommun
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.168.77.0/24 7539 TANet2, sponsored by NSC, TAI
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 /9:5 /10:7 /11:11 /12:37
/13:89 /14:227 /15:390 /16:7078 /17:1362 /18:2461
/19:7157 /20:6238 /21:4683 /22:7131 /23:8878 /24:60597
/25:308 /26:302 /27:229 /28:184 /29:115 /30:154
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1395 2177 UUNET Technologies, Inc.
1221 1361 1507 Telstra Pty Ltd
3967 793 975 Exodus Communication
702 705 1086 UUNET Technologies, Inc.
8010 703 719 PublicNet Communications, Inc
7046 557 718 UUNET Technologies, Inc.
7018 545 1081 AT&T
690 524 527 Merit Network
4323 494 584 Time Warner Communications, I
3908 489 716 Supernet, Inc.
209 445 616 Qwest
1239 441 775 Sprint
1 424 856 BBN Planet
852 367 574 Telus Advanced Communications
705 358 472 UUNET Technologies, Inc.
2764 356 401 connect.com.au pty ltd
703 320 392 UUNET Technologies, Inc.
2149 311 409 Performance Systems, Inc.
4151 298 344 USDA
3549 275 404 Global Crossing
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:432 13:10 15:1 17:5
20:1 24:824 25:1 32:73 38:13 40:4
43:1 44:2 52:1 53:2 57:12 61:166
62:159 63:1915 64:1486 65:1005 66:754 67:13
68:1 80:119 128:61 129:116 130:23 131:43
132:15 133:2 134:134 135:10 136:120 137:109
138:62 139:30 140:102 141:57 142:69 143:44
144:55 145:12 146:216 147:94 148:136 149:87
150:41 151:38 152:394 153:37 154:6 155:85
156:84 157:124 158:69 159:75 160:45 161:53
162:85 163:130 164:120 165:98 166:205 167:162
168:123 169:48 170:300 171:2 191:1 192:5346
193:2071 194:2075 195:824 196:435 198:3769 199:3307
200:2400 201:1 202:2855 203:4558 204:3329 205:2187
206:2609 207:2702 208:2679 209:2903 210:578 211:146
212:962 213:538 214:9 215:15 216:2959 217:403
218:11
End of report
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