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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 13 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 152524
Prefixes after maximum aggregation: 89570
Unique aggregates announced to Internet: 73013
Total ASes present in the Internet Routing Table: 18615
Origin-only ASes present in the Internet Routing Table: 16142
Origin ASes announcing only one prefix: 7582
Transit ASes present in the Internet Routing Table: 2473
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1357891688
Equivalent to 80 /8s, 239 /16s and 200 /24s
Percentage of available address space announced: 36.6
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70630
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29662
Total APNIC prefixes after maximum aggregation: 14613
Prefixes being announced from the APNIC address blocks: 27724
Unique aggregates announced from the APNIC address blocks: 14426
APNIC Region origin ASes present in the Internet Routing Table: 2172
APNIC Region origin ASes announcing only one prefix: 650
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: 168490496
Equivalent to 10 /8s, 10 /16s and 246 /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: 86264
Total ARIN prefixes after maximum aggregation: 52081
Prefixes being announced from the ARIN address blocks: 66042
Unique aggregates announced from the ARIN address blocks: 23749
ARIN Region origin ASes present in the Internet Routing Table: 9766
ARIN Region origin ASes announcing only one prefix: 3524
ARIN Region transit ASes present in the Internet Routing Table: 973
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 236573440
Equivalent to 14 /8s, 25 /16s and 211 /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: 28596
Total RIPE prefixes after maximum aggregation: 19788
Prefixes being announced from the RIPE address blocks: 25492
Unique aggregates announced from the RIPE address blocks: 16705
RIPE Region origin ASes present in the Internet Routing Table: 6106
RIPE Region origin ASes announcing only one prefix: 3267
RIPE Region transit ASes present in the Internet Routing Table: 1045
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 181917696
Equivalent to 10 /8s, 215 /16s and 216 /24s
Percentage of available RIPE address space announced: 63.8
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: 6745
Total LACNIC prefixes after maximum aggregation: 2392
Prefixes being announced from the LACNIC address blocks: 6579
Unique aggregates announced from the LACNIC address blocks: 4036
LACNIC Region origin ASes present in the Internet Routing Table: 407
LACNIC Region origin ASes announcing only one prefix: 120
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: 16880384
Equivalent to 1 /8s, 1 /16s and 147 /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: 1249
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 846
Unique aggregates announced from the AfriNIC address blocks: 674
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: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2083584
Equivalent to 0 /8s, 31 /16s and 203 /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 790 1184 568 Telstra Pty Ltd
9583 569 47 37 Satyam Infoway Ltd.,
4766 548 3409 270 Korea Internet Exchange for "
4755 421 143 85 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 356 69 80 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 354 164 40 China Netcom Corp.
703 322 350 247 UUNET
17557 322 23 158 Pakistan Telecom
2764 287 272 232 connect.com.au pty ltd
7474 271 268 201 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
4780 216 225 26 Digital United Inc.
10036 216 20 198 C&M Communication Co. Ltd.
17974 215 62 11 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1430 6618 988 AT&T WorldNet Services
701 1061 8350 875 UUNET Technologies, Inc.
721 1052 21808 297 DLA Systems Automation Center
1239 930 2882 619 Sprint
2386 862 529 613 AT&T Data Communications Serv
6197 821 376 353 BellSouth Network Solutions,
4323 810 670 220 Time Warner Telecom
18566 755 208 6 Covad Communications
209 653 3422 508 Qwest
3356 644 10930 459 Level 3 Communications, LLC
20115 592 462 317 Charter Communications
3561 546 2369 415 Cable & Wireless USA
852 522 1142 404 Telus Advanced Communications
7843 482 726 93 Adelphia Corp.
6478 465 814 97 AT&T Worldnet Services
7132 452 8292 384 SBC Internet Services
6198 447 382 203 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 422 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
702 628 2022 519 UUNET - Commercial IP service
3320 305 2997 242 Deutsche Telekom AG
3301 282 1112 273 TeliaNet Sweden
8220 279 464 264 COLT Internet - International
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 207 708 172 SWIPnet Swedish IP Network
8708 202 116 186 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 172 990 75 France Telecom Transpac
6746 167 46 135 Dynamic Network Technologies,
8866 164 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 154 1329 68 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 136 138 101 France Telecom Transpac's Tra
3303 131 609 127 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 352 139 72 ImpSat
8151 311 471 137 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 92 21 Telefonica Del Peru
11664 170 14 24 Keytech SA
7303 147 66 24 Telecom Argentina Stet-France
6505 142 91 96 Global One Communicaoes Ltda
6503 127 148 84 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 85 6 41 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis 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 269 636 226 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 55 16 2 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 24 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
21280 17 2 3 Swift Global Kenya Ltd.Is an
8452 16 20 5 TEDATA
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
721 1052 755 DLA Systems Automation Center
18566 755 749 Covad Communications
4134 863 698 Data Communications Bureau
4323 810 590 Time Warner Telecom
9583 569 532 Satyam Infoway Ltd.,
6197 821 468 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 422 404 Century Telephone
22773 413 391 Cox Communications, Inc. Atla
7843 482 389 Adelphia Corp.
6478 465 368 AT&T Worldnet Services
22909 416 356 Comcast Cable Corporation
6467 377 346 E.Spire Communications, Inc.
4755 421 336 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 930 311 Sprint
13609 328 294 Choice One Communications Inc
4355 392 293 EarthLink, Inc.
376 399 285 Reseau Interordinateurs Scien
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.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
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
192.200.100.0/24 7018 AT&T WorldNet Services
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 /12:59
/13:138 /14:313 /15:558 /16:8185 /17:2301 /18:4006
/19:9988 /20:10563 /21:8106 /22:11241 /23:12867 /24:83249
/25:267 /26:239 /27:124 /28:57 /29:40 /30:132
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 740 755 Covad Communications
6197 667 821 BellSouth Network Solutions,
2386 629 862 AT&T Data Communications Serv
7018 583 1430 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 399 569 Satyam Infoway Ltd.,
702 383 628 UUNET - Commercial IP service
1239 370 930 Sprint
4766 368 548 Korea Internet Exchange for "
5668 365 422 Century Telephone
6198 326 447 BellSouth Network Solutions,
6467 287 377 E.Spire Communications, Inc.
13609 286 328 Choice One Communications Inc
6517 283 306 Yipes Communications, Inc.
9929 283 354 China Netcom Corp.
20115 271 592 Charter Communications
21502 269 272 NUMERICABLE is a cabled netwo
4323 260 810 Time Warner Telecom
11456 256 301 Carolina Online, Inc.
701 250 1061 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1456 13:1 15:5 16:2
17:3 18:3 20:5 24:739 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:1
56:3 57:23 60:10 61:669 62:513 63:1849
64:2514 65:2081 66:2518 67:475 68:524 69:838
70:44 72:17 80:527 81:580 82:365 83:213
84:69 85:4 128:116 129:163 130:88 131:193
132:36 134:189 135:30 136:187 137:70 138:189
139:36 140:227 141:109 142:136 143:110 144:165
145:40 146:283 147:95 148:262 149:123 150:92
151:63 152:121 153:69 154:2 155:132 156:62
157:71 158:137 159:162 160:61 161:60 162:379
163:83 164:218 165:168 166:125 167:220 168:366
169:126 170:313 171:8 192:5655 193:3003 194:2213
195:1559 196:587 198:3892 199:3309 200:3923 201:30
202:4965 203:5820 204:3566 205:2108 206:2324 207:2556
208:2103 209:3066 210:1544 211:680 212:1180 213:1242
214:227 215:31 216:3738 217:1072 218:180 219:99
220:297 221:78 222:32
End of report
