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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 Sat 27 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114466
Prefixes after maximum aggregation: 74045
Unique aggregates announced to Internet: 54710
Total ASes present in the Internet Routing Table: 13441
Origin-only ASes present in the Internet Routing Table: 11631
Origin ASes announcing only one prefix: 5149
Transit ASes present in the Internet Routing Table: 1810
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: 23
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: 34
Number of addresses announced to Internet: 1161895364
Equivalent to 69 /8s, 65 /16s and 29 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46409
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18991
Total APNIC prefixes after maximum aggregation: 11221
Prefixes being announced from the APNIC address blocks: 17492
Unique aggregates announced from the APNIC address blocks: 10625
APNIC Region origin ASes present in the Internet Routing Table: 1574
APNIC Region origin ASes announcing only one prefix: 511
APNIC Region transit ASes present in the Internet Routing Table: 275
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89854048
Equivalent to 5 /8s, 91 /16s and 16 /24s
Percentage of available APNIC address space announced: 59.1
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76040
Total ARIN prefixes after maximum aggregation: 48207
Prefixes being announced from the ARIN address blocks: 54027
Unique aggregates announced from the ARIN address blocks: 18044
ARIN Region origin ASes present in the Internet Routing Table: 7903
ARIN Region origin ASes announcing only one prefix: 2524
ARIN Region transit ASes present in the Internet Routing Table: 782
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190300480
Equivalent to 11 /8s, 87 /16s and 193 /24s
Percentage of available ARIN address space announced: 70.9
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: 19428
Total RIPE prefixes after maximum aggregation: 14617
Prefixes being announced from the RIPE address blocks: 16124
Unique aggregates announced from the RIPE address blocks: 10488
RIPE Region origin ASes present in the Internet Routing Table: 3918
RIPE Region origin ASes announcing only one prefix: 2114
RIPE Region transit ASes present in the Internet Routing Table: 740
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112865568
Equivalent to 6 /8s, 186 /16s and 49 /24s
Percentage of available RIPE address space announced: 74.7
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 1255 1191 899 Telstra Pty Ltd
4538 560 1278 26 China Education and Research
703 414 376 327 UUNET
2907 362 1832 340 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 317 296 213 Optus Communications Pty Ltd
17557 296 20 103 Pakistan Telecom
4134 292 2140 105 Data Communications Bureau
4755 291 112 77 Videsh Sanchar Nigam Ltd. Aut
9443 253 45 68 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group)
9583 182 32 5 Satyam Infoway Ltd.,
17676 169 2626 32 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
7539 118 183 117 TANet2, sponsored by NSC, TAI
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 897 2441 755 UUNET - Commercial IP service
3301 395 923 345 TeliaNet Sweden
5515 319 783 180 Sonera Solution Autonomous Sy
3215 279 640 177 France Telecom Transpac
3352 274 531 31 Ibernet, Internet Access Netw
3320 268 1964 207 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 209 85 97 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 182 306 127 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 141 548 140 Swisscom Ltd
8708 141 23 137 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 122 17 29 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 105 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 1816 9181 1375 UUNET Technologies, Inc.
7018 1313 7401 940 AT&T
3908 1031 1658 498 Supernet, Inc.
1239 812 3244 643 Sprint
852 755 1175 452 Telus Advanced Communications
1 691 8067 442 GENUITY
4323 630 439 258 Time Warner Communications, I
7843 607 360 240 Adelphia Corp.
7132 583 659 133 Southwestern Bell Internet Se
209 540 2026 351 Qwest
7046 534 889 333 UUNET Technologies, Inc.
690 521 75 330 Merit Network
7066 484 203 254 Virginia Polytechnic Institut
7029 463 165 56 Alltel Information Services,
3549 428 828 309 Global Crossing
2149 387 176 287 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 377 611 37 BellSouth Network Solutions,
2914 368 2083 368 Verio, Inc.
6347 344 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 560 534 China Education and Research
3908 1031 533 Supernet, Inc.
7132 583 450 Southwestern Bell Internet Se
7029 463 407 Alltel Information Services,
7018 1313 373 AT&T
4323 630 372 Time Warner Communications, I
7843 607 367 Adelphia Corp.
1221 1255 356 Telstra Pty Ltd
6197 377 340 BellSouth Network Solutions,
852 755 303 Telus Advanced Communications
4151 289 273 USDA
6347 344 268 SAVVIS Communications Corpora
4355 324 255 EarthLink, Inc.
1 691 249 GENUITY
3352 274 243 Ibernet, Internet Access Netw
18566 236 232 Covad Communications
7066 484 230 Virginia Polytechnic Institut
4755 291 214 Videsh Sanchar Nigam Ltd. Aut
7303 267 208 Telecom Argentina Stet-France
1580 216 202 ANOSCEUR
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
23323 UNALLOCATED 192.235.0.0/23 2914 Verio, Inc.
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 - Commercial IP service
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
192.92.167.0/24 297 NASA Science Network
192.108.46.0/23 680 DFN-IP service G-WiN
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 /8:17 /9:6 /10:7 /11:12 /12:35
/13:86 /14:235 /15:415 /16:7280 /17:1459 /18:2663
/19:7706 /20:7490 /21:5274 /22:7982 /23:9752 /24:63397
/25:199 /26:157 /27:83 /28:71 /29:46 /30:74
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 609 1031 Supernet, Inc.
702 541 897 UUNET - Commercial IP service
701 495 1816 UUNET Technologies, Inc.
690 463 521 Merit Network
7843 412 607 Adelphia Corp.
7066 387 484 Virginia Polytechnic Institut
7018 369 1313 AT&T
7029 366 463 Alltel Information Services,
6197 262 377 BellSouth Network Solutions,
6198 237 310 BellSouth Network Solutions,
3301 233 395 TeliaNet Sweden
18566 232 236 Covad Communications
209 213 540 Qwest
3215 212 279 France Telecom Transpac
1239 203 812 Sprint
1580 203 216 ANOSCEUR
3320 200 268 Deutsche Telekom AG
3352 200 274 Ibernet, Internet Access Netw
7046 199 534 UUNET Technologies, Inc.
1 189 691 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:513 13:10 15:2 17:6 20:3
24:699 25:1 32:41 38:9 40:6 44:1
57:13 61:321 62:239 63:1899 64:1220 65:1406
66:997 67:91 68:67 80:249 81:41 128:65
129:131 130:21 131:52 132:11 133:2 134:124
135:7 136:244 137:95 138:151 139:72 140:168
141:120 142:79 143:47 144:143 145:17 146:189
147:139 148:241 149:80 150:39 151:66 152:269
153:34 154:14 155:115 156:70 157:127 158:70
159:134 160:19 161:74 162:214 163:91 164:264
165:132 166:219 167:257 168:295 169:60 170:241
171:3 192:5457 193:2376 194:2104 195:932 196:415
198:3624 199:3178 200:2618 202:3316 203:4776 204:3257
205:2204 206:2683 207:2531 208:2610 209:2719 210:592
211:238 212:900 213:664 214:9 215:19 216:2837
217:467 218:29
End of report
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