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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 02 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 145692
Prefixes after maximum aggregation: 86849
Unique aggregates announced to Internet: 69613
Total ASes present in the Internet Routing Table: 17966
Origin-only ASes present in the Internet Routing Table: 15605
Origin ASes announcing only one prefix: 7279
Transit ASes present in the Internet Routing Table: 2361
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 33
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1332098228
Equivalent to 79 /8s, 102 /16s and 52 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.1
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 66600
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27745
Total APNIC prefixes after maximum aggregation: 13952
Prefixes being announced from the APNIC address blocks: 25968
Unique aggregates announced from the APNIC address blocks: 14018
APNIC Region origin ASes present in the Internet Routing Table: 2127
APNIC Region origin ASes announcing only one prefix: 630
APNIC Region transit ASes present in the Internet Routing Table: 330
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 158392960
Equivalent to 9 /8s, 112 /16s and 226 /24s
Percentage of available APNIC address space announced: 72.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 83583
Total ARIN prefixes after maximum aggregation: 51055
Prefixes being announced from the ARIN address blocks: 63847
Unique aggregates announced from the ARIN address blocks: 22570
ARIN Region origin ASes present in the Internet Routing Table: 9510
ARIN Region origin ASes announcing only one prefix: 3403
ARIN Region transit ASes present in the Internet Routing Table: 917
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 231108896
Equivalent to 13 /8s, 198 /16s and 113 /24s
Percentage of available ARIN address space announced: 68.9
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, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26763
Total RIPE prefixes after maximum aggregation: 18892
Prefixes being announced from the RIPE address blocks: 23580
Unique aggregates announced from the RIPE address blocks: 15717
RIPE Region origin ASes present in the Internet Routing Table: 5782
RIPE Region origin ASes announcing only one prefix: 3109
RIPE Region transit ASes present in the Internet Routing Table: 992
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 170104384
Equivalent to 10 /8s, 35 /16s and 150 /24s
Percentage of available RIPE address space announced: 59.6
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, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6326
Total LACNIC prefixes after maximum aggregation: 2263
Prefixes being announced from the LACNIC address blocks: 6118
Unique aggregates announced from the LACNIC address blocks: 3525
LACNIC Region origin ASes present in the Internet Routing Table: 388
LACNIC Region origin ASes announcing only one prefix: 116
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15789312
Equivalent to 0 /8s, 240 /16s and 237 /24s
Percentage of available LACNIC address space announced: 47.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1242
Total AfriNIC prefixes after maximum aggregation: 687
Prefixes being announced from the AfriNIC address blocks: 831
Unique aggregates announced from the AfriNIC address blocks: 662
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2060032
Equivalent to 0 /8s, 31 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 833 4193 156 Data Communications Bureau
1221 811 1184 585 Telstra Pty Ltd
4766 564 2897 265 Korea Internet Exchange for "
9583 529 41 106 Satyam Infoway Ltd.,
4755 366 133 50 Videsh Sanchar Nigam Ltd. Aut
9929 363 162 34 China Netcom Corp.
9443 355 70 81 Primus Telecommunications
2907 354 1856 328 SINET Japan
17676 347 5164 39 XTAGE CORPORATION
703 315 342 243 UUNET
17557 314 22 153 Pakistan Telecom
2764 286 274 233 connect.com.au pty ltd
7474 263 268 200 Optus Communications Pty Ltd
4802 233 28 143 Wantree Development
9942 232 73 128 COMindico Australia
9800 227 371 65 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 201 2256 105 chinanet IDC center beijing n
17974 201 61 10 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1409 6759 967 AT&T WorldNet Services
701 1299 8409 932 UUNET Technologies, Inc.
1239 937 2843 626 Sprint
2386 826 560 591 AT&T Data Communications Serv
4323 779 633 216 Time Warner Telecom
18566 741 208 6 Covad Communications
6197 719 362 340 BellSouth Network Solutions,
721 715 21018 296 DLA Systems Automation Center
209 618 3430 494 Qwest
20115 580 407 292 Charter Communications
3356 565 10933 435 Level 3 Communications, LLC
6347 547 296 119 SAVVIS Communications Corpora
852 510 1141 398 Telus Advanced Communications
7843 490 675 104 Adelphia Corp.
3561 467 2390 349 Cable & Wireless USA
6198 457 401 207 BellSouth Network Solutions,
7132 435 8030 377 SBC Internet Services
705 429 163 271 UUNET Technologies, Inc.
6467 392 150 31 E.Spire Communications, Inc.
4355 388 323 99 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 644 2031 534 UUNET - Commercial IP service
3320 302 2470 239 Deutsche Telekom AG
3301 284 1098 274 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 245 2025 239 DFN-IP service G-WiN
3246 217 475 214 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 213 747 182 SWIPnet Swedish IP Network
8708 203 113 181 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 182 876 76 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
5400 154 209 125 BT Ignite European Backbone
6746 154 29 131 Dynamic Network Technologies,
25186 152 154 108 France Telecom Transpac's Tra
3303 146 609 129 Swisscom Ltd
3269 145 1195 66 TELECOM ITALIA
8866 136 16 17 Bulgarian Telecommunication C
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 357 100 54 Servicios Alestra S.A de C.V
6140 340 137 63 ImpSat
8151 286 407 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 186 86 19 Telefonica Del Peru
11664 158 11 21 Keytech SA
6505 135 90 93 Global One Communicaoes Ltda
6503 129 187 88 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 89 9 30 Integrated Systems
14420 86 6 34 ANDINATEL S.A.
6535 84 5 18 Chilesat Servicios Empresari
10481 80 32 7 Prima S.A.
11556 80 40 2 Cable-Wireless Panama
5639 78 8 8 Telecommunications Services o
11311 78 7 19 Sinectis S.A.
15311 76 21 36 Telefonica Empresas
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
14259 67 4 5 GTD Internet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 59 16 1 Noor Advanced Technologies AS
14988 45 16 1 Botswana Telecommunications C
24835 36 34 7 RAYA Telecom - Egypt
9129 33 3 4 UUNET Kenya
6713 27 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 741 735 Covad Communications
4134 833 677 Data Communications Bureau
4323 779 563 Time Warner Telecom
6347 547 428 SAVVIS Communications Corpora
9583 529 423 Satyam Infoway Ltd.,
721 715 419 DLA Systems Automation Center
7843 490 386 Adelphia Corp.
6197 719 379 BellSouth Network Solutions,
5668 388 370 Century Telephone
701 1299 367 UUNET Technologies, Inc.
22773 383 364 Cox Communications, Inc. Atla
6467 392 361 E.Spire Communications, Inc.
27364 351 332 Armstrong Cable Services
9929 363 329 China Netcom Corp.
22909 362 327 Comcast Cable Corporation
4755 366 316 Videsh Sanchar Nigam Ltd. Aut
1239 937 311 Sprint
17676 347 308 XTAGE CORPORATION
11172 357 303 Servicios Alestra S.A de C.V
4766 564 299 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro
64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro
64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro
64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro
64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro
64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro
64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro
64580 PRIVATE 219.146.208.0/21 17633 ASN for Shandong Pro
64581 PRIVATE 219.146.216.0/21 17633 ASN for Shandong Pro
64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro
64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro
64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro
64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro
64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro
64582 PRIVATE 222.173.240.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro
64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro
64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro
64580 PRIVATE 222.174.224.0/19 17633 ASN for Shandong Pro
64581 PRIVATE 222.175.0.0/19 17633 ASN for Shandong Pro
64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:14 /12:63
/13:134 /14:304 /15:540 /16:8028 /17:2198 /18:3806
/19:9732 /20:10240 /21:7695 /22:10603 /23:12234 /24:79340
/25:240 /26:191 /27:98 /28:52 /29:26 /30:85
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 741 Covad Communications
2386 590 826 AT&T Data Communications Serv
6197 570 719 BellSouth Network Solutions,
7018 551 1409 AT&T WorldNet Services
702 398 644 UUNET - Commercial IP service
6347 396 547 SAVVIS Communications Corpora
701 382 1299 UUNET Technologies, Inc.
9583 369 529 Satyam Infoway Ltd.,
4766 368 564 Korea Internet Exchange for "
1239 365 937 Sprint
5668 339 388 Century Telephone
27364 337 351 Armstrong Cable Services
6198 336 457 BellSouth Network Solutions,
20115 302 580 Charter Communications
6467 291 392 E.Spire Communications, Inc.
9929 290 363 China Netcom Corp.
6517 265 292 Yipes Communications, Inc.
13609 261 304 Choice One Communications Inc
3320 248 302 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:1411 13:1 15:5 16:2
17:3 20:9 24:695 32:78 33:3 38:79
40:54 44:4 52:3 55:1 56:3 57:17
60:6 61:466 62:506 63:1842 64:2284 65:2065
66:2452 67:360 68:544 69:719 70:34 80:516
81:368 82:213 83:136 84:35 128:107 129:171
130:87 131:190 132:26 134:187 135:17 136:186
137:50 138:167 139:37 140:162 141:107 142:120
143:67 144:153 145:41 146:292 147:96 148:423
149:107 150:87 151:70 152:168 153:68 154:2
155:129 156:58 157:76 158:144 159:160 160:56
161:71 162:389 163:79 164:205 165:159 166:115
167:222 168:286 169:114 170:271 171:9 192:5603
193:2873 194:2114 195:1467 196:586 198:3672 199:3259
200:3703 201:15 202:4719 203:5654 204:3214 205:2074
206:2317 207:2543 208:2145 209:3027 210:1459 211:587
212:1001 213:1195 214:130 215:31 216:3712 217:993
218:186 219:84 220:245 221:37 222:44
End of report
