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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 09 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152212
Prefixes after maximum aggregation: 89510
Unique aggregates announced to Internet: 72866
Total ASes present in the Internet Routing Table: 18595
Origin-only ASes present in the Internet Routing Table: 16139
Origin ASes announcing only one prefix: 7572
Transit ASes present in the Internet Routing Table: 2456
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 17
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1358848612
Equivalent to 80 /8s, 254 /16s and 98 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70436
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29623
Total APNIC prefixes after maximum aggregation: 14600
Prefixes being announced from the APNIC address blocks: 27683
Unique aggregates announced from the APNIC address blocks: 14454
APNIC Region origin ASes present in the Internet Routing Table: 2173
APNIC Region origin ASes announcing only one prefix: 653
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 168603392
Equivalent to 10 /8s, 12 /16s and 175 /24s
Percentage of available APNIC address space announced: 76.9
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: 86040
Total ARIN prefixes after maximum aggregation: 52063
Prefixes being announced from the ARIN address blocks: 65877
Unique aggregates announced from the ARIN address blocks: 23684
ARIN Region origin ASes present in the Internet Routing Table: 9756
ARIN Region origin ASes announcing only one prefix: 3517
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 236466432
Equivalent to 14 /8s, 24 /16s and 49 /24s
Percentage of available ARIN address space announced: 70.5
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: 28573
Total RIPE prefixes after maximum aggregation: 19758
Prefixes being announced from the RIPE address blocks: 25449
Unique aggregates announced from the RIPE address blocks: 16598
RIPE Region origin ASes present in the Internet Routing Table: 6094
RIPE Region origin ASes announcing only one prefix: 3262
RIPE Region transit ASes present in the Internet Routing Table: 1036
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 181782784
Equivalent to 10 /8s, 213 /16s and 201 /24s
Percentage of available RIPE address space announced: 63.7
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, 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: 6726
Total LACNIC prefixes after maximum aggregation: 2395
Prefixes being announced from the LACNIC address blocks: 6563
Unique aggregates announced from the LACNIC address blocks: 4028
LACNIC Region origin ASes present in the Internet Routing Table: 406
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16882176
Equivalent to 1 /8s, 1 /16s and 154 /24s
Percentage of available LACNIC address space announced: 50.3
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1243
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 838
Unique aggregates announced from the AfriNIC address blocks: 670
AfriNIC Region origin ASes present in the Internet Routing Table: 94
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: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2082560
Equivalent to 0 /8s, 31 /16s and 199 /24s
Percentage of available AfriNIC address space announced: 12.4
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 863 4413 165 Data Communications Bureau
1221 793 1184 568 Telstra Pty Ltd
9583 566 47 40 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 409 142 79 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 352 163 38 China Netcom Corp.
703 323 350 248 UUNET
17557 323 23 157 Pakistan Telecom
2764 285 272 232 connect.com.au pty ltd
7474 273 268 203 Optus Communications Pty Ltd
9800 232 381 71 CHINA UNICOM
4802 230 28 139 Wantree Development
9498 228 81 53 BHARTI BT INTERNET LTD.
7563 226 48 164 Korea Internet Infrastructure
10036 217 20 198 C&M Communication Co. Ltd.
17974 216 62 11 PT TELEKOMUNIKASI INDONESIA
4780 214 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1425 6616 983 AT&T WorldNet Services
701 1066 8383 880 UUNET Technologies, Inc.
721 1040 21084 305 DLA Systems Automation Center
1239 929 2881 618 Sprint
2386 851 529 616 AT&T Data Communications Serv
6197 820 384 354 BellSouth Network Solutions,
4323 811 670 220 Time Warner Telecom
18566 754 208 6 Covad Communications
209 650 3422 507 Qwest
3356 643 10946 459 Level 3 Communications, LLC
20115 592 462 317 Charter Communications
3561 545 2368 414 Cable & Wireless USA
852 522 1142 404 Telus Advanced Communications
7843 481 726 91 Adelphia Corp.
6478 461 806 96 AT&T Worldnet Services
7132 453 8292 385 SBC Internet Services
6198 447 382 203 BellSouth Network Solutions,
27364 442 36 19 Armstrong Cable Services
5668 418 87 18 Century Telephone
22909 416 897 60 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 626 2023 518 UUNET - Commercial IP service
3320 305 2997 239 Deutsche Telekom AG
8220 280 464 265 COLT Internet - International
3301 279 1098 270 TeliaNet Sweden
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 482 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 210 722 175 SWIPnet Swedish IP Network
8708 204 116 188 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 173 982 80 France Telecom Transpac
8866 163 20 7 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
6746 159 46 128 Dynamic Network Technologies,
3269 155 1329 69 TELECOM ITALIA
3300 154 165 78 AUCS Communications Services
25186 144 154 101 France Telecom Transpac's Tra
3303 132 611 128 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 352 140 73 ImpSat
8151 310 455 136 UniNet S.A. de C.V.
16814 218 14 6 NSS, S.A.
11172 215 99 55 Servicios Alestra S.A de C.V
6147 190 94 20 Telefonica Del Peru
11664 169 14 20 Keytech SA
7303 146 66 26 Telecom Argentina Stet-France
6505 141 90 97 Global One Communicaoes Ltda
6503 129 164 85 AVANTEL, S.A.
11992 101 9 30 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
11311 86 8 23 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
14420 84 6 41 ANDINATEL S.A.
13999 83 52 9 Mega Cable S.A. de C.V.
10481 82 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 112 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 54 16 1 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
9129 32 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
12455 23 4 3 Jambonet Autonomous system
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8452 17 20 5 TEDATA
21280 17 2 3 Swift Global Kenya Ltd.Is an
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 754 748 Covad Communications
721 1040 735 DLA Systems Automation Center
4134 863 698 Data Communications Bureau
4323 811 591 Time Warner Telecom
9583 566 526 Satyam Infoway Ltd.,
6197 820 466 BellSouth Network Solutions,
27364 442 423 Armstrong Cable Services
5668 418 400 Century Telephone
7843 481 390 Adelphia Corp.
22773 409 388 Cox Communications, Inc. Atla
6478 461 365 AT&T Worldnet Services
22909 416 356 Comcast Cable Corporation
6467 377 346 E.Spire Communications, Inc.
4755 409 330 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 352 314 China Netcom Corp.
1239 929 311 Sprint
13609 328 294 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
6140 352 279 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
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
192.44.0.0/19 702 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 /10:7 /11:15 /12:60
/13:139 /14:314 /15:559 /16:8179 /17:2300 /18:4004
/19:9969 /20:10538 /21:8095 /22:11215 /23:12825 /24:83065
/25:265 /26:240 /27:125 /28:59 /29:40 /30:132
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 739 754 Covad Communications
6197 666 820 BellSouth Network Solutions,
2386 617 851 AT&T Data Communications Serv
7018 582 1425 AT&T WorldNet Services
27364 428 442 Armstrong Cable Services
9583 397 566 Satyam Infoway Ltd.,
702 382 626 UUNET - Commercial IP service
1239 371 929 Sprint
4766 368 548 Korea Internet Exchange for "
5668 361 418 Century Telephone
6198 326 447 BellSouth Network Solutions,
6467 287 377 E.Spire Communications, Inc.
13609 286 328 Choice One Communications Inc
9929 282 352 China Netcom Corp.
6517 281 304 Yipes Communications, Inc.
20115 271 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 262 811 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
3320 249 305 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1436 13:1 15:5 16:2
17:3 18:4 20:5 24:735 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:8 61:660 62:517 63:1854
64:2506 65:2081 66:2504 67:472 68:522 69:826
70:44 72:14 80:525 81:592 82:362 83:212
84:68 85:4 128:121 129:164 130:89 131:192
132:28 134:188 135:30 136:187 137:70 138:188
139:35 140:225 141:108 142:134 143:119 144:164
145:40 146:283 147:96 148:262 149:112 150:92
151:63 152:121 153:69 154:2 155:132 156:62
157:71 158:130 159:162 160:63 161:60 162:379
163:83 164:218 165:168 166:123 167:222 168:359
169:125 170:315 171:9 192:5665 193:2986 194:2196
195:1555 196:580 198:3867 199:3303 200:3913 201:30
202:4934 203:5822 204:3573 205:2079 206:2284 207:2587
208:2101 209:3066 210:1536 211:677 212:1172 213:1277
214:229 215:31 216:3768 217:1065 218:181 219:94
220:298 221:78 222:32
End of report
