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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 15 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107846
Prefixes after maximum aggregation: 72059
Unique aggregates announced to Internet: 52255
Total ASes present in the Internet Routing Table: 12368
Origin-only ASes present in the Internet Routing Table: 10725
Origin ASes announcing only one prefix: 4645
Transit ASes present in the Internet Routing Table: 1643
Transit-only ASes present in the Internet Routing Table: 55
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: 2
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: 1161554380
Equivalent to 69 /8s, 59 /16s and 233 /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: 72062
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17275
Total APNIC prefixes after maximum aggregation: 10638
Prefixes being announced from the APNIC address blocks: 15763
Unique aggregates announced from the APNIC address blocks: 9791
APNIC Region origin ASes present in the Internet Routing Table: 1429
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: 78598720
Equivalent to 4 /8s, 175 /16s and 82 /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: 72660
Total ARIN prefixes after maximum aggregation: 47504
Prefixes being announced from the ARIN address blocks: 51925
Unique aggregates announced from the ARIN address blocks: 17101
ARIN Region origin ASes present in the Internet Routing Table: 7329
ARIN Region origin ASes announcing only one prefix: 2264
ARIN Region transit ASes present in the Internet Routing Table: 747
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183400708
Equivalent to 10 /8s, 238 /16s and 121 /24s
Percentage of available ARIN address space announced: 68.3
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: 17910
Total RIPE prefixes after maximum aggregation: 13917
Prefixes being announced from the RIPE address blocks: 14642
Unique aggregates announced from the RIPE address blocks: 9759
RIPE Region origin ASes present in the Internet Routing Table: 3554
RIPE Region origin ASes announcing only one prefix: 1920
RIPE Region transit ASes present in the Internet Routing Table: 642
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105858560
Equivalent to 6 /8s, 79 /16s and 70 /24s
Percentage of available RIPE address space announced: 70.1
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, 24576 - 25599
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 1331 1240 983 Telstra Pty Ltd
4538 448 1098 14 China Education and Research
2764 398 378 373 connect.com.au pty ltd
703 397 337 304 UUNET Technologies, Inc.
2907 393 1908 363 SINET Japan
7474 314 286 205 Optus Communications Pty Ltd
4755 311 114 99 Videsh Sanchar Nigam Ltd. Aut
4134 268 1858 100 Data Communications Bureau
4766 198 1380 145 Korea Internet Exchange for "
17557 183 14 84 Pakistan Telecom
9443 172 45 68 Primus Telecommunications
7539 146 137 145 TANet2, sponsored by NSC, TAI
4740 145 34 119 OzEmail ISP
9583 145 32 5 Satyam Infoway Ltd.,
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
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1080 2618 856 UUNET Technologies, Inc.
3301 397 924 350 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 219 705 176 Sonera Finland Autonomous Sys
3320 191 1961 169 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 164 289 118 LANLINK autonomous system
8708 150 20 139 Romania Data Systems S.A.
5400 147 60 86 Concert European Core Network
5549 142 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 113 7 37 MobiFon S.A.
8297 110 37 62 Teleglobe Autonomous System i
517 106 229 104 KPNQwest Germany GmbH
1290 97 412 72 PSINet UK Ltd.
1267 92 1471 42 Infostrada S.p.A.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2153 8810 1538 UUNET Technologies, Inc.
7018 1169 7512 910 AT&T
1 862 8381 634 BBN Planet
3908 802 1639 474 Supernet, Inc.
1239 780 3159 602 Sprint
3967 749 360 320 Exodus Communication
7046 668 837 434 UUNET Technologies, Inc.
4323 614 412 216 Time Warner Communications, I
852 581 979 383 Telus Advanced Communications
690 546 77 322 Merit Network
209 510 1876 296 Qwest
705 492 445 306 UUNET Technologies, Inc.
2914 459 2210 428 Verio, Inc.
7132 420 484 159 Southwestern Bell Internet Se
4293 418 90 310 Cable & Wireless USA
3549 415 831 210 Global Crossing
2149 393 214 329 Performance Systems, Inc.
3561 367 2204 321 Cable & Wireless USA
3741 350 730 239 The Internet Solution
577 349 604 219 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 448 434 China Education and Research
3967 749 429 Exodus Communication
4323 614 398 Time Warner Communications, I
1221 1331 348 Telstra Pty Ltd
3908 802 328 Supernet, Inc.
4151 337 321 USDA
11371 278 271 Rhythms NetConnections
7132 420 261 Southwestern Bell Internet Se
7018 1169 259 AT&T
6347 324 241 SAVVIS Communications Corpora
7046 668 234 UUNET Technologies, Inc.
1 862 228 BBN Planet
702 1080 224 UUNET Technologies, Inc.
690 546 224 Merit Network
209 510 214 Qwest
4755 311 212 Videsh Sanchar Nigam Ltd. Aut
3549 415 205 Global Crossing
4355 229 199 EarthLink, Inc.
852 581 198 Telus Advanced Communications
6517 224 195 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64610 PRIVATE 64.198.32.0/24 10514 Splitrock Services I
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 /16:7147 /17:1408 /18:2477
/19:7250 /20:6597 /21:4867 /22:7274 /23:9024 /24:60075
/25:227 /26:225 /27:129 /28:92 /29:74 /30:133
/31:0 /32:50
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1377 2153 UUNET Technologies, Inc.
1221 1184 1331 Telstra Pty Ltd
702 701 1080 UUNET Technologies, Inc.
7018 612 1169 AT&T
3967 564 749 Exodus Communication
3908 560 802 Supernet, Inc.
690 542 546 Merit Network
4323 508 614 Time Warner Communications, I
7046 500 668 UUNET Technologies, Inc.
1239 451 780 Sprint
1 440 862 BBN Planet
4293 406 418 Cable & Wireless USA
852 367 581 Telus Advanced Communications
705 359 492 UUNET Technologies, Inc.
2764 353 398 connect.com.au pty ltd
209 337 510 Qwest
703 324 397 UUNET Technologies, Inc.
2149 297 393 Performance Systems, Inc.
4151 291 337 USDA
3549 285 415 Global Crossing
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:455 13:10 15:2 17:5
20:1 24:761 25:1 32:74 38:13 40:4
43:1 44:2 52:1 57:14 61:226 62:162
63:1902 64:1103 65:996 66:597 67:25 68:15
80:142 128:63 129:121 130:23 131:44 132:13
133:2 134:121 135:10 136:119 137:99 138:62
139:30 140:99 141:57 142:64 143:42 144:54
145:12 146:213 147:60 148:161 149:87 150:39
151:43 152:384 153:34 154:7 155:85 156:81
157:122 158:72 159:75 160:27 161:55 162:96
163:127 164:131 165:112 166:218 167:160 168:113
169:48 170:281 171:2 191:1 192:5398 193:2067
194:2057 195:862 196:430 198:3743 199:3248 200:2387
201:1 202:2899 203:4523 204:3309 205:2193 206:2752
207:2588 208:2808 209:2913 210:533 211:150 212:885
213:541 214:7 215:17 216:2956 217:411 218:12
End of report
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