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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 11 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115053
Prefixes after maximum aggregation: 74092
Unique aggregates announced to Internet: 54134
Total ASes present in the Internet Routing Table: 13520
Origin-only ASes present in the Internet Routing Table: 11691
Origin ASes announcing only one prefix: 5200
Transit ASes present in the Internet Routing Table: 1829
Transit-only ASes present in the Internet Routing Table: 55
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 20
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: 33
Number of addresses announced to Internet: 1184363060
Equivalent to 70 /8s, 151 /16s and 242 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46785
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18941
Total APNIC prefixes after maximum aggregation: 11213
Prefixes being announced from the APNIC address blocks: 17453
Unique aggregates announced from the APNIC address blocks: 10628
APNIC Region origin ASes present in the Internet Routing Table: 1582
APNIC Region origin ASes announcing only one prefix: 511
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: 12
Number of APNIC addresses announced to Internet: 91000288
Equivalent to 5 /8s, 108 /16s and 141 /24s
Percentage of available APNIC address space announced: 59.9
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: 76834
Total ARIN prefixes after maximum aggregation: 48298
Prefixes being announced from the ARIN address blocks: 54434
Unique aggregates announced from the ARIN address blocks: 18147
ARIN Region origin ASes present in the Internet Routing Table: 7950
ARIN Region origin ASes announcing only one prefix: 2562
ARIN Region transit ASes present in the Internet Routing Table: 801
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190417744
Equivalent to 11 /8s, 89 /16s and 139 /24s
Percentage of available ARIN address space announced: 66.8
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, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19276
Total RIPE prefixes after maximum aggregation: 14581
Prefixes being announced from the RIPE address blocks: 16003
Unique aggregates announced from the RIPE address blocks: 9848
RIPE Region origin ASes present in the Internet Routing Table: 3935
RIPE Region origin ASes announcing only one prefix: 2127
RIPE Region transit ASes present in the Internet Routing Table: 738
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 117360128
Equivalent to 6 /8s, 254 /16s and 198 /24s
Percentage of available RIPE address space announced: 77.7
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 1256 1193 895 Telstra Pty Ltd
4538 561 1279 27 China Education and Research
703 416 377 325 UUNET
2907 366 1848 344 SINET Japan
2764 360 358 331 connect.com.au pty ltd
7474 317 296 213 Optus Communications Pty Ltd
17557 297 20 95 Pakistan Telecom
4134 295 2182 104 Data Communications Bureau
4755 282 111 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 181 32 5 Satyam Infoway Ltd.,
17676 180 2802 32 XTAGE CORPORATION
9443 169 45 68 Primus Telecommunications
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 124 191 18 CHINA UNICOM
4713 115 1009 106 NTT Communications Corporatio
4621 113 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 896 2417 751 UUNET - Commercial IP service
3301 394 923 344 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 251 1961 212 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 211 85 100 BT Ignite European Backbone
1257 207 446 202 SWIPnet Swedish IP Network
719 182 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 142 548 141 Swisscom Ltd
8708 142 24 139 Romania Data Systems S.A.
2856 126 786 116 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3269 106 658 63 TELECOM ITALIA
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 101 85 38 Global One Services AB
8297 95 4126 49 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1790 9145 1358 UUNET Technologies, Inc.
7018 1309 7415 932 AT&T
3908 1011 1659 498 Supernet, Inc.
1239 809 3249 644 Sprint
852 753 1175 450 Telus Advanced Communications
1 682 8052 448 GENUITY
4323 639 442 263 Time Warner Communications, I
7843 628 366 225 Adelphia Corp.
7132 593 663 137 Southwestern Bell Internet Se
2548 545 1167 347 Business Internet, Inc.
690 521 75 328 Merit Network
7046 512 886 314 UUNET Technologies, Inc.
209 503 2057 343 Qwest
7066 486 203 254 Virginia Polytechnic Institut
7029 451 164 54 Alltel Information Services,
3549 438 824 313 Global Crossing
6197 379 611 37 BellSouth Network Solutions,
15290 378 297 194 AT&T Canada IES
2914 364 2077 364 Verio, Inc.
6347 347 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 561 534 China Education and Research
3908 1011 513 Supernet, Inc.
7132 593 456 Southwestern Bell Internet Se
7843 628 403 Adelphia Corp.
7029 451 397 Alltel Information Services,
7018 1309 377 AT&T
4323 639 376 Time Warner Communications, I
1221 1256 361 Telstra Pty Ltd
6197 379 342 BellSouth Network Solutions,
852 753 303 Telus Advanced Communications
4151 294 278 USDA
6347 347 272 SAVVIS Communications Corpora
4355 335 264 EarthLink, Inc.
18566 242 238 Covad Communications
1 682 234 GENUITY
7066 486 232 Virginia Polytechnic Institut
376 320 219 Reseau Interordinateurs Scien
4755 282 208 Videsh Sanchar Nigam Ltd. Aut
7303 267 207 Telecom Argentina Stet-France
4814 220 206 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26705 UNALLOCATED 12.111.19.0/24 701 UUNET Technologies,
64511 RESERVED 147.73.0.0/16 5050 Pittsburgh Supercomp
1877 UNALLOCATED 192.36.147.0/24 1878 Peter & Paul's test
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
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 Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
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
192.156.164.0/24 19548 Adelphia Business Solutions
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 /12:37
/13:84 /14:231 /15:418 /16:7295 /17:1469 /18:2694
/19:7790 /20:7578 /21:5288 /22:7998 /23:9743 /24:63685
/25:203 /26:179 /27:99 /28:81 /29:41 /30:73
/31:0 /32:23
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 596 1011 Supernet, Inc.
702 546 896 UUNET - Commercial IP service
701 485 1790 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 427 628 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 373 1309 AT&T
7029 356 451 Alltel Information Services,
6197 264 379 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 238 242 Covad Communications
3301 234 394 TeliaNet Sweden
3215 221 289 France Telecom Transpac
1239 214 809 Sprint
1580 200 213 ANOSCEUR
4355 193 335 EarthLink, Inc.
7046 188 512 UUNET Technologies, Inc.
209 185 503 Qwest
4323 185 639 Time Warner Communications, I
5400 185 211 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:535 13:10 15:2 17:6
20:3 24:708 25:1 32:41 38:9 40:6
44:1 57:15 61:322 62:245 63:1857 64:1222
65:1425 66:1075 67:95 68:82 80:258 81:45
128:67 129:140 130:20 131:56 132:11 133:2
134:124 135:10 136:503 137:96 138:151 139:72
140:186 141:51 142:69 143:50 144:140 145:18
146:242 147:143 148:244 149:79 150:40 151:70
152:267 153:36 154:11 155:115 156:70 157:116
158:67 159:133 160:18 161:77 162:215 163:87
164:262 165:125 166:215 167:251 168:284 169:60
170:206 171:3 192:5453 193:2359 194:2066 195:786
196:415 198:3674 199:3166 200:2720 202:3334 203:4738
204:3297 205:2195 206:2551 207:2615 208:2606 209:2720
210:602 211:237 212:886 213:709 214:8 215:19
216:2857 217:472 218:31 219:1
End of report
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