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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 Sat 12 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108459
Prefixes after maximum aggregation: 71985
Unique aggregates announced to Internet: 52200
Total ASes present in the Internet Routing Table: 12338
Origin-only ASes present in the Internet Routing Table: 10696
Origin ASes announcing only one prefix: 4620
Transit ASes present in the Internet Routing Table: 1642
Transit-only ASes present in the Internet Routing Table: 54
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
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: 1160742124
Equivalent to 69 /8s, 47 /16s and 132 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72734
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17238
Total APNIC prefixes after maximum aggregation: 10580
Prefixes being announced from the APNIC address blocks: 15776
Unique aggregates announced from the APNIC address blocks: 9805
APNIC Region origin ASes present in the Internet Routing Table: 1428
APNIC Region origin ASes announcing only one prefix: 461
APNIC Region transit ASes present in the Internet Routing Table: 247
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78552128
Equivalent to 4 /8s, 174 /16s and 156 /24s
Percentage of available APNIC address space announced: 58.1
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: 73311
Total ARIN prefixes after maximum aggregation: 47469
Prefixes being announced from the ARIN address blocks: 52612
Unique aggregates announced from the ARIN address blocks: 17062
ARIN Region origin ASes present in the Internet Routing Table: 7312
ARIN Region origin ASes announcing only one prefix: 2251
ARIN Region transit ASes present in the Internet Routing Table: 742
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182852900
Equivalent to 10 /8s, 230 /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: 17908
Total RIPE prefixes after maximum aggregation: 13936
Prefixes being announced from the RIPE address blocks: 14627
Unique aggregates announced from the RIPE address blocks: 9737
RIPE Region origin ASes present in the Internet Routing Table: 3545
RIPE Region origin ASes announcing only one prefix: 1908
RIPE Region transit ASes present in the Internet Routing Table: 643
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105546752
Equivalent to 6 /8s, 74 /16s and 132 /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 1333 1241 985 Telstra Pty Ltd
4538 448 1098 14 China Education and Research
2764 400 378 374 connect.com.au pty ltd
703 397 337 304 UUNET Technologies, Inc.
2907 395 1940 363 SINET Japan
4755 323 116 98 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 176 14 87 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
9583 159 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 123 21 83 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 1083 2635 858 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 255 489 249 SWIPnet Swedish IP Network
680 233 2149 231 DFN-IP service G-WiN
3215 233 562 152 France Telecom / &Equant
5515 218 705 176 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 147 60 86 Concert European Core Network
5549 143 78 65 Nextra Deutschland GmbH + Co.
2856 136 777 125 BTnet UK Regional network
3303 127 576 125 Swisscom Ltd
3269 115 663 70 TELECOM ITALIA
12302 112 7 36 MobiFon S.A.
8297 110 37 62 Teleglobe Autonomous System i
517 107 230 105 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 2149 8810 1538 UUNET Technologies, Inc.
7018 1152 7483 898 AT&T
1 874 8393 647 BBN Planet
3908 800 1638 475 Supernet, Inc.
1239 780 3157 603 Sprint
3967 770 361 332 Exodus Communication
8010 715 62 11 PublicNet Communications, Inc
7046 685 838 440 UUNET Technologies, Inc.
4323 613 412 216 Time Warner Communications, I
852 582 979 384 Telus Advanced Communications
690 547 77 323 Merit Network
209 510 1876 297 Qwest
705 488 437 302 UUNET Technologies, Inc.
2914 459 2210 428 Verio, Inc.
4293 426 92 316 Cable & Wireless USA
7132 416 481 161 Southwestern Bell Internet Se
3549 408 831 205 Global Crossing
2149 392 214 328 Performance Systems, Inc.
3561 376 2220 323 Cable & Wireless USA
4151 362 704 16 USDA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
8010 715 704 PublicNet Communications, Inc
3967 770 438 Exodus Communication
4538 448 434 China Education and Research
4323 613 397 Time Warner Communications, I
1221 1333 348 Telstra Pty Ltd
4151 362 346 USDA
3908 800 325 Supernet, Inc.
11371 278 271 Rhythms NetConnections
7132 416 255 Southwestern Bell Internet Se
7018 1152 254 AT&T
7046 685 245 UUNET Technologies, Inc.
6347 325 242 SAVVIS Communications Corpora
1 874 227 BBN Planet
702 1083 225 UUNET Technologies, Inc.
4755 323 225 Videsh Sanchar Nigam Ltd. Aut
690 547 224 Merit Network
209 510 213 Qwest
3549 408 203 Global Crossing
4355 229 199 EarthLink, Inc.
852 582 198 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 64.80.126.0/23 15270 PaeTec.net -a divisi
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
24583 UNALLOCATED 212.104.84.0/24 702 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 /15:393 /16:7148 /17:1406 /18:2469
/19:7251 /20:6546 /21:4850 /22:7266 /23:9012 /24:60758
/25:231 /26:229 /27:133 /28:98 /29:75 /30:136
/31:0 /32:55
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1377 2149 UUNET Technologies, Inc.
1221 1186 1333 Telstra Pty Ltd
702 702 1083 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
7018 602 1152 AT&T
3967 584 770 Exodus Communication
3908 558 800 Supernet, Inc.
690 543 547 Merit Network
7046 518 685 UUNET Technologies, Inc.
4323 507 613 Time Warner Communications, I
1239 452 780 Sprint
1 448 874 BBN Planet
4293 413 426 Cable & Wireless USA
852 368 582 Telus Advanced Communications
705 358 488 UUNET Technologies, Inc.
2764 355 400 connect.com.au pty ltd
209 336 510 Qwest
703 324 397 UUNET Technologies, Inc.
4151 315 362 USDA
2149 296 392 Performance Systems, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 7:1 9:1 12:455 13:10 15:2
17:5 20:1 24:778 25:1 32:74 38:13
40:4 43:1 44:2 52:1 57:14 61:226
62:161 63:1909 64:1497 65:992 66:769 67:25
68:15 80:141 128:63 129:119 130:23 131:43
132:13 133:2 134:122 135:10 136:121 137:101
138:62 139:30 140:72 141:57 142:64 143:42
144:54 145:12 146:214 147:60 148:162 149:87
150:38 151:43 152:386 153:34 154:7 155:85
156:81 157:117 158:72 159:79 160:26 161:54
162:96 163:129 164:126 165:112 166:217 167:160
168:113 169:47 170:281 171:2 191:1 192:5397
193:2069 194:2051 195:856 196:430 198:3736 199:3261
200:2396 201:1 202:2912 203:4514 204:3307 205:2187
206:2743 207:2730 208:2818 209:2908 210:552 211:150
212:877 213:537 214:7 215:16 216:2942 217:410
218:12
End of report
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