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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 Thu 10 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107067
Prefixes after maximum aggregation: 71366
Unique aggregates announced to Internet: 52057
Total ASes present in the Internet Routing Table: 12279
Origin-only ASes present in the Internet Routing Table: 10669
Origin ASes announcing only one prefix: 4619
Transit ASes present in the Internet Routing Table: 1610
Transit-only ASes present in the Internet Routing Table: 47
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: 1160044000
Equivalent to 69 /8s, 36 /16s and 221 /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: 71574
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16984
Total APNIC prefixes after maximum aggregation: 10402
Prefixes being announced from the APNIC address blocks: 15587
Unique aggregates announced from the APNIC address blocks: 9741
APNIC Region origin ASes present in the Internet Routing Table: 1417
APNIC Region origin ASes announcing only one prefix: 461
APNIC Region transit ASes present in the Internet Routing Table: 244
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 78408512
Equivalent to 4 /8s, 172 /16s and 107 /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: 72233
Total ARIN prefixes after maximum aggregation: 47062
Prefixes being announced from the ARIN address blocks: 51901
Unique aggregates announced from the ARIN address blocks: 17032
ARIN Region origin ASes present in the Internet Routing Table: 7278
ARIN Region origin ASes announcing only one prefix: 2255
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: 182514976
Equivalent to 10 /8s, 224 /16s and 245 /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: 17850
Total RIPE prefixes after maximum aggregation: 13902
Prefixes being announced from the RIPE address blocks: 14586
Unique aggregates announced from the RIPE address blocks: 9705
RIPE Region origin ASes present in the Internet Routing Table: 3536
RIPE Region origin ASes announcing only one prefix: 1903
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: 105516288
Equivalent to 6 /8s, 74 /16s and 13 /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 1350 1259 993 Telstra Pty Ltd
4538 424 1082 14 China Education and Research
2764 401 378 375 connect.com.au pty ltd
703 397 337 304 UUNET Technologies, Inc.
2907 392 1907 362 SINET Japan
4755 335 114 93 Videsh Sanchar Nigam Ltd. Aut
7474 312 285 203 Optus Communications Pty Ltd
4134 268 1858 100 Data Communications Bureau
4766 195 1396 142 Korea Internet Exchange for "
17557 175 13 86 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
1659 165 924 34 Taiwan Academic Network (TANe
9583 157 32 5 Satyam Infoway Ltd.,
9768 145 381 88 Korea Telecom
4740 144 34 118 OzEmail ISP
7657 123 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 110 194 20 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1084 2637 859 UUNET Technologies, Inc.
3301 399 924 352 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 154 20 142 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 113 7 37 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 94 191 78 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2135 8792 1519 UUNET Technologies, Inc.
7018 1143 7433 891 AT&T
1 873 8393 646 BBN Planet
3967 802 359 366 Exodus Communication
3908 798 1638 473 Supernet, Inc.
1239 780 3171 605 Sprint
8010 715 62 11 PublicNet Communications, Inc
7046 683 822 439 UUNET Technologies, Inc.
4323 587 380 202 Time Warner Communications, I
852 580 978 384 Telus Advanced Communications
690 534 77 314 Merit Network
209 508 1860 295 Qwest
705 489 437 304 UUNET Technologies, Inc.
2914 458 2211 429 Verio, Inc.
3549 402 831 201 Global Crossing
7132 402 470 168 Southwestern Bell Internet Se
2149 393 214 329 Performance Systems, Inc.
3561 373 2204 323 Cable & Wireless USA
4151 364 704 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 802 436 Exodus Communication
4538 424 410 China Education and Research
4323 587 385 Time Warner Communications, I
1221 1350 357 Telstra Pty Ltd
4151 364 348 USDA
3908 798 325 Supernet, Inc.
11371 278 271 Rhythms NetConnections
7018 1143 252 AT&T
7046 683 244 UUNET Technologies, Inc.
4755 335 242 Videsh Sanchar Nigam Ltd. Aut
6347 322 239 SAVVIS Communications Corpora
7132 402 234 Southwestern Bell Internet Se
1 873 227 BBN Planet
702 1084 225 UUNET Technologies, Inc.
7029 245 223 Alltel Information Services,
690 534 220 Merit Network
209 508 213 Qwest
3549 402 201 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 /17:1392 /18:2462
/19:7217 /20:6510 /21:4794 /22:7174 /23:8901 /24:59903
/25:212 /26:219 /27:124 /28:79 /29:72 /30:65
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1369 2135 UUNET Technologies, Inc.
1221 1202 1350 Telstra Pty Ltd
702 702 1084 UUNET Technologies, Inc.
8010 699 715 PublicNet Communications, Inc
3967 617 802 Exodus Communication
7018 600 1143 AT&T
3908 556 798 Supernet, Inc.
690 531 534 Merit Network
7046 518 683 UUNET Technologies, Inc.
4323 497 587 Time Warner Communications, I
1239 453 780 Sprint
1 447 873 BBN Planet
852 368 580 Telus Advanced Communications
705 358 489 UUNET Technologies, Inc.
2764 355 401 connect.com.au pty ltd
209 335 508 Qwest
703 324 397 UUNET Technologies, Inc.
4151 317 364 USDA
2149 296 393 Performance Systems, Inc.
4755 291 335 Videsh Sanchar Nigam Ltd. Aut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:446 13:10 15:2 17:5
20:1 24:773 25:1 32:74 38:13 40:4
43:1 44:2 52:1 57:14 61:222 62:160
63:1897 64:1485 65:977 66:742 67:22 68:15
80:128 128:64 129:118 130:23 131:41 132:14
133:2 134:106 135:10 136:46 137:102 138:62
139:30 140:71 141:57 142:50 143:41 144:57
145:12 146:201 147:94 148:158 149:88 150:38
151:43 152:377 153:34 154:5 155:83 156:81
157:120 158:72 159:77 160:26 161:54 162:119
163:120 164:124 165:102 166:218 167:162 168:113
169:47 170:281 171:2 191:1 192:5321 193:2054
194:2050 195:858 196:429 198:3677 199:3290 200:2394
201:1 202:2849 203:4495 204:3254 205:2161 206:2579
207:2678 208:2607 209:2974 210:540 211:152 212:876
213:537 214:9 215:17 216:2931 217:413 218:12
End of report
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