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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 Wed 17 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114082
Prefixes after maximum aggregation: 73646
Unique aggregates announced to Internet: 53937
Total ASes present in the Internet Routing Table: 13356
Origin-only ASes present in the Internet Routing Table: 11557
Origin ASes announcing only one prefix: 5117
Transit ASes present in the Internet Routing Table: 1799
Transit-only ASes present in the Internet Routing Table: 50
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: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1181441592
Equivalent to 70 /8s, 107 /16s and 94 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46239
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18792
Total APNIC prefixes after maximum aggregation: 11134
Prefixes being announced from the APNIC address blocks: 17298
Unique aggregates announced from the APNIC address blocks: 10531
APNIC Region origin ASes present in the Internet Routing Table: 1563
APNIC Region origin ASes announcing only one prefix: 507
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89086368
Equivalent to 5 /8s, 79 /16s and 89 /24s
Percentage of available APNIC address space announced: 58.6
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75575
Total ARIN prefixes after maximum aggregation: 47970
Prefixes being announced from the ARIN address blocks: 53696
Unique aggregates announced from the ARIN address blocks: 18025
ARIN Region origin ASes present in the Internet Routing Table: 7860
ARIN Region origin ASes announcing only one prefix: 2518
ARIN Region transit ASes present in the Internet Routing Table: 781
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189547600
Equivalent to 11 /8s, 76 /16s and 68 /24s
Percentage of available ARIN address space announced: 70.6
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: 19707
Total RIPE prefixes after maximum aggregation: 14542
Prefixes being announced from the RIPE address blocks: 16275
Unique aggregates announced from the RIPE address blocks: 9832
RIPE Region origin ASes present in the Internet Routing Table: 3885
RIPE Region origin ASes announcing only one prefix: 2092
RIPE Region transit ASes present in the Internet Routing Table: 722
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 116916512
Equivalent to 6 /8s, 248 /16s and 1 /24s
Percentage of available RIPE address space announced: 77.4
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 1254 1207 898 Telstra Pty Ltd
4538 558 1290 19 China Education and Research
703 409 359 325 UUNET Technologies, Inc.
2907 364 1849 341 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 316 292 211 Optus Communications Pty Ltd
17557 295 20 106 Pakistan Telecom
4134 292 2118 106 Data Communications Bureau
4755 282 113 76 Videsh Sanchar Nigam Ltd. Aut
9443 253 45 67 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 217 79 14 China Telecom (Group) - Beiji
9583 176 32 5 Satyam Infoway Ltd.,
17676 160 2482 27 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 128 22 87 The Internet Group Limited
7539 126 186 125 TANet2, sponsored by NSC, TAI
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 915 2442 773 UUNET Technologies, Inc.
5515 649 785 189 Sonera Finland Autonomous Sys
3301 397 924 347 TeliaNet Sweden
3352 277 535 29 Ibernet, Internet Access Netw
3215 272 630 171 France Telecom / &Equant
3320 260 1960 199 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5400 207 85 96 Concert European Core Network
1257 206 430 203 SWIPnet Swedish IP Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 139 23 137 Romania Data Systems S.A.
3303 138 547 137 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 109 192 87 France Telecom
3233 106 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1832 9176 1377 UUNET Technologies, Inc.
7018 1294 7398 942 AT&T
3908 920 1643 503 Supernet, Inc.
1239 816 3251 640 Sprint
852 749 1175 448 Telus Advanced Communications
1 698 8075 447 GENUITY
7843 647 360 238 Adelphia Corp.
4323 626 438 257 Time Warner Communications, I
7132 582 659 133 Southwestern Bell Internet Se
7046 547 888 345 UUNET Technologies, Inc.
209 537 2010 350 Qwest
690 515 74 327 Merit Network
7066 482 203 252 Virginia Polytechnic Institut
7029 464 165 56 Alltel Information Services,
3549 435 839 313 Global Crossing
2914 407 2100 384 Verio, Inc.
2149 392 177 292 Performance Systems, Inc.
15290 379 297 194 AT&T Canada IES
6197 370 547 36 BellSouth Network Solutions,
6347 343 370 77 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 558 539 China Education and Research
5515 649 460 Sonera Finland Autonomous Sys
7132 582 449 Southwestern Bell Internet Se
3908 920 417 Supernet, Inc.
7843 647 409 Adelphia Corp.
7029 464 408 Alltel Information Services,
4323 626 369 Time Warner Communications, I
1221 1254 356 Telstra Pty Ltd
7018 1294 352 AT&T
6197 370 334 BellSouth Network Solutions,
852 749 301 Telus Advanced Communications
4151 288 272 USDA
6347 343 266 SAVVIS Communications Corpora
1 698 251 GENUITY
3352 277 248 Ibernet, Internet Access Netw
4355 298 246 EarthLink, Inc.
7066 482 230 Virginia Polytechnic Institut
18566 229 225 Covad Communications
7303 278 215 Telecom Argentina Stet-France
4755 282 206 Videsh Sanchar Nigam Ltd. Aut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
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
192.5.154.0/24 16588 Spider Web Hosting Solutions
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
192.83.69.0/24 5515 Sonera Finland Autonomous Sys
192.83.72.0/21 5515 Sonera Finland Autonomous Sys
192.83.80.0/20 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
192.136.79.0/24 719 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
192.153.136.0/21 568 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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:87 /14:235 /15:415 /16:7264 /17:1453 /18:2654
/19:7681 /20:7414 /21:5216 /22:7932 /23:9689 /24:63272
/25:205 /26:185 /27:84 /28:68 /29:47 /30:74
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 559 915 UUNET Technologies, Inc.
701 509 1832 UUNET Technologies, Inc.
3908 507 920 Supernet, Inc.
690 457 515 Merit Network
7843 453 647 Adelphia Corp.
5515 407 649 Sonera Finland Autonomous Sys
7066 386 482 Virginia Polytechnic Institut
7029 367 464 Alltel Information Services,
7018 348 1294 AT&T
6197 256 370 BellSouth Network Solutions,
6198 238 310 BellSouth Network Solutions,
3301 234 397 TeliaNet Sweden
18566 225 229 Covad Communications
209 211 537 Qwest
1239 211 816 Sprint
7046 206 547 UUNET Technologies, Inc.
3215 205 272 France Telecom / &Equant
3352 201 277 Ibernet, Internet Access Netw
3320 193 260 Deutsche Telekom AG
1 191 698 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:498 13:10 15:2 17:6 20:3
24:754 25:1 32:41 38:9 40:6 44:1
57:13 61:286 62:225 63:1876 64:1193 65:1381
66:989 67:92 68:64 80:248 81:34 128:65
129:132 130:22 131:95 132:11 133:2 134:124
135:8 136:244 137:95 138:152 139:70 140:164
141:124 142:79 143:44 144:142 145:14 146:187
147:106 148:242 149:84 150:41 151:67 152:265
153:35 154:14 155:114 156:70 157:128 158:70
159:136 160:18 161:71 162:214 163:96 164:266
165:133 166:220 167:174 168:292 169:60 170:243
171:3 192:5507 193:2431 194:2178 195:921 196:408
198:3626 199:3191 200:2607 202:3298 203:4722 204:3257
205:2172 206:2684 207:2507 208:2629 209:2666 210:603
211:231 212:914 213:670 214:9 215:19 216:2857
217:466 218:28
End of report
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