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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 Sun 30 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113294
Prefixes after maximum aggregation: 73576
Unique aggregates announced to Internet: 54206
Total ASes present in the Internet Routing Table: 13296
Origin-only ASes present in the Internet Routing Table: 11505
Origin ASes announcing only one prefix: 5101
Transit ASes present in the Internet Routing Table: 1791
Transit-only ASes present in the Internet Routing Table: 47
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: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1194739420
Equivalent to 71 /8s, 54 /16s and 70 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45785
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18578
Total APNIC prefixes after maximum aggregation: 11069
Prefixes being announced from the APNIC address blocks: 17074
Unique aggregates announced from the APNIC address blocks: 10452
APNIC Region origin ASes present in the Internet Routing Table: 1545
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87569248
Equivalent to 5 /8s, 56 /16s and 51 /24s
Percentage of available APNIC address space announced: 64.7
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: 75520
Total ARIN prefixes after maximum aggregation: 47907
Prefixes being announced from the ARIN address blocks: 53729
Unique aggregates announced from the ARIN address blocks: 17625
ARIN Region origin ASes present in the Internet Routing Table: 7824
ARIN Region origin ASes announcing only one prefix: 2507
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192482132
Equivalent to 11 /8s, 121 /16s and 11 /24s
Percentage of available ARIN address space announced: 71.7
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
25600 - 26623
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: 19194
Total RIPE prefixes after maximum aggregation: 14600
Prefixes being announced from the RIPE address blocks: 15899
Unique aggregates announced from the RIPE address blocks: 10606
RIPE Region origin ASes present in the Internet Routing Table: 3881
RIPE Region origin ASes announcing only one prefix: 2090
RIPE Region transit ASes present in the Internet Routing Table: 727
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111833120
Equivalent to 6 /8s, 170 /16s and 112 /24s
Percentage of available RIPE address space announced: 74.1
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 1265 1223 905 Telstra Pty Ltd
4538 425 1226 18 China Education and Research
703 400 357 318 UUNET Technologies, Inc.
2764 368 358 337 connect.com.au pty ltd
2907 366 1864 340 SINET Japan
7474 313 292 208 Optus Communications Pty Ltd
17557 292 19 112 Pakistan Telecom
4134 289 2114 105 Data Communications Bureau
4755 274 116 81 Videsh Sanchar Nigam Ltd. Aut
9443 262 45 66 Primus Telecommunications
4713 226 1009 106 NTT Communications Corporatio
4766 215 1504 154 Korea Internet Exchange for "
4814 201 79 14 China Telecom (Group) - Beiji
9583 178 32 5 Satyam Infoway Ltd.,
17676 152 2354 23 XTAGE CORPORATION
7539 151 202 146 TANet2, sponsored by NSC, TAI
9768 145 386 74 Korea Telecom
7657 139 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 111 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1015 2583 838 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 280 535 29 Ibernet, Internet Access Netw
3215 267 614 166 France Telecom / &Equant
3320 241 1947 193 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
5400 205 83 94 Concert European Core Network
1257 203 430 200 SWIPnet Swedish IP Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
3303 136 546 135 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 124 18 36 MobiFon S.A.
3269 111 690 68 TELECOM ITALIA
3246 110 301 105 Song Networks / Clinet
5511 109 192 88 France Telecom
8297 103 49 56 Teleglobe Autonomous System i
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1859 9257 1384 UUNET Technologies, Inc.
7018 1300 7470 934 AT&T
3908 920 1643 499 Supernet, Inc.
1239 824 3345 650 Sprint
1 694 8099 448 GENUITY
852 681 1173 447 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 614 2011 351 Qwest
7843 609 355 242 Adelphia Corp.
7046 585 875 373 UUNET Technologies, Inc.
7132 579 659 133 Southwestern Bell Internet Se
690 511 75 317 Merit Network
7029 478 167 58 Alltel Information Services,
7066 478 202 251 Virginia Polytechnic Institut
2149 455 197 347 Performance Systems, Inc.
3549 438 836 314 Global Crossing
2914 405 2100 382 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 341 370 80 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
3908 920 421 Supernet, Inc.
7029 478 420 Alltel Information Services,
4538 425 407 China Education and Research
4323 632 373 Time Warner Communications, I
7843 609 367 Adelphia Corp.
7018 1300 366 AT&T
1221 1265 360 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 281 266 USDA
209 614 263 Qwest
6347 341 261 SAVVIS Communications Corpora
4355 304 252 EarthLink, Inc.
3352 280 251 Ibernet, Internet Access Netw
1 694 246 GENUITY
852 681 234 Telus Advanced Communications
7066 478 227 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
18566 228 224 Covad Communications
6198 323 218 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65111 PRIVATE 64.200.152.0/23 7911 Williams Communicati
65111 PRIVATE 64.200.154.0/23 7911 Williams Communicati
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
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 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:6 /10:7 /11:12 /12:36
/13:86 /14:232 /15:415 /16:7227 /17:1437 /18:2626
/19:7674 /20:7298 /21:5136 /22:7887 /23:9628 /24:62954
/25:178 /26:161 /27:71 /28:65 /29:42 /30:72
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 626 1015 UUNET Technologies, Inc.
701 511 1859 UUNET Technologies, Inc.
3908 507 920 Supernet, Inc.
690 452 511 Merit Network
7843 419 609 Adelphia Corp.
7066 383 478 Virginia Polytechnic Institut
7029 376 478 Alltel Information Services,
7018 353 1300 AT&T
209 271 614 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 402 TeliaNet Sweden
6198 236 323 BellSouth Network Solutions,
7046 227 585 UUNET Technologies, Inc.
18566 224 228 Covad Communications
1239 204 824 Sprint
3352 204 280 Ibernet, Internet Access Netw
1580 203 233 HQ, 5th Signal Command
3215 200 267 France Telecom / &Equant
4454 195 249 OIR Telecommunications, State
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 9:1 12:501 13:10 15:2 17:6
20:2 24:798 25:1 32:41 38:9 40:6
44:1 57:13 61:269 62:216 63:1902 64:1249
65:1403 66:996 67:89 68:46 80:256 81:30
128:60 129:134 130:22 131:48 132:11 133:3
134:120 135:8 136:245 137:91 138:119 139:69
140:175 141:122 142:80 143:42 144:153 145:14
146:180 147:138 148:223 149:89 150:40 151:67
152:261 153:33 154:14 155:97 156:77 157:127
158:70 159:128 160:18 161:69 162:214 163:97
164:269 165:133 166:223 167:172 168:131 169:61
170:359 171:3 192:5472 193:2357 194:2072 195:929
196:394 198:3656 199:3180 200:2562 202:3253 203:4660
204:3255 205:2190 206:2682 207:2549 208:2651 209:2643
210:584 211:227 212:892 213:641 214:9 215:19
216:2825 217:466 218:45 219:81
End of report
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