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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 04 Jun, 2006
Analysis Summary
----------------
BGP routing table entries examined: 189564
Prefixes after maximum aggregation: 104458
Unique aggregates announced to Internet: 92761
Total ASes present in the Internet Routing Table: 22342
Origin-only ASes present in the Internet Routing Table: 19431
Origin ASes announcing only one prefix: 9303
Transit ASes present in the Internet Routing Table: 2911
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1541720296
Equivalent to 91 /8s, 228 /16s and 200 /24s
Percentage of available address space announced: 41.6
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 93920
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 40320
Total APNIC prefixes after maximum aggregation: 16788
Prefixes being announced from the APNIC address blocks: 38058
Unique aggregates announced from the APNIC address blocks: 18386
APNIC Region origin ASes present in the Internet Routing Table: 2585
APNIC Region origin ASes announcing only one prefix: 739
APNIC Region transit ASes present in the Internet Routing Table: 400
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 227058784
Equivalent to 13 /8s, 136 /16s and 164 /24s
Percentage of available APNIC address space announced: 71.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97647
Total ARIN prefixes after maximum aggregation: 57731
Prefixes being announced from the ARIN address blocks: 71599
Unique aggregates announced from the ARIN address blocks: 26553
ARIN Region origin ASes present in the Internet Routing Table: 10738
ARIN Region origin ASes announcing only one prefix: 4040
ARIN Region transit ASes present in the Internet Routing Table: 983
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292989184
Equivalent to 17 /8s, 118 /16s and 169 /24s
Percentage of available ARIN address space announced: 75.9
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37945
Total RIPE prefixes after maximum aggregation: 25354
Prefixes being announced from the RIPE address blocks: 34939
Unique aggregates announced from the RIPE address blocks: 23590
RIPE Region origin ASes present in the Internet Routing Table: 8109
RIPE Region origin ASes announcing only one prefix: 4246
RIPE Region transit ASes present in the Internet Routing Table: 1341
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 252153988
Equivalent to 15 /8s, 7 /16s and 144 /24s
Percentage of available RIPE address space announced: 79.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11470
Total LACNIC prefixes after maximum aggregation: 3690
Prefixes being announced from the LACNIC address blocks: 9564
Unique aggregates announced from the LACNIC address blocks: 5535
LACNIC Region origin ASes present in the Internet Routing Table: 695
LACNIC Region origin ASes announcing only one prefix: 231
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 27223040
Equivalent to 1 /8s, 159 /16s and 100 /24s
Percentage of available LACNIC address space announced: 40.6
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2178
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1503
Unique aggregates announced from the AfriNIC address blocks: 961
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 47
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4124672
Equivalent to 0 /8s, 62 /16s and 240 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 1205 7140 222 CHINANET-BACKBONE
9583 900 109 16 Sify Limited
4755 868 257 67 Videsh Sanchar Nigam Ltd. Aut
4766 690 4435 304 Korea Telecom (KIX)
1221 613 1668 471 Telstra Pty Ltd
9498 574 211 67 BHARTI BT INTERNET LTD.
7545 534 124 70 TPG Internet Pty Ltd
17488 520 32 9 Hathway IP Over Cable Interne
17676 486 7029 110 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
18101 410 85 24 Reliance Infocom Ltd Internet
17557 393 30 178 Pakistan Telecom
4802 377 80 172 Wantree Development
17849 359 22 114 Telecommunications Technology
17974 344 117 14 PT TELEKOMUNIKASI INDONESIA
2907 334 1733 311 SINET Japan
9929 325 221 57 China Netcom Corp.
7474 298 211 228 SingTel Optus Pty Ltd
9800 274 410 67 CHINA UNICOM
9837 267 78 160 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1480 6182 945 AT&T WorldNet Services
4323 1303 739 260 Time Warner Telecom
721 1014 21993 311 DLA Systems Automation Center
6197 1008 625 479 BellSouth Network Solutions,
174 968 5787 904 Cogent Communications
19029 947 151 109 New Edge Networks
701 945 6766 779 UUNET Technologies, Inc.
18566 897 272 8 Covad Communications
2386 893 557 688 AT&T Data Communications Serv
1239 845 2789 599 Sprint
19262 709 2106 173 Verizon Global Networks
20115 709 613 379 Charter Communications
209 707 3687 551 Qwest
22773 661 1741 40 Cox Communications, Inc.
7011 637 218 415 Citizens Utilities
11492 631 87 21 Cable One
852 580 1084 381 Telus Advanced Communications
6478 572 1543 339 AT&T Worldnet Services
19916 563 49 54 OLM LLC
855 553 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 574 1936 453 UUNET - Commercial IP service
3352 309 1644 30 Ibernet, Internet Access Netw
3301 305 1327 292 TeliaNet Sweden
3320 287 3989 240 Deutsche Telekom AG
8220 277 471 265 COLT Telecommunications
680 245 2025 242 DFN-IP service G-WiN
6746 240 90 214 Dynamic Network Technologies,
3246 235 504 225 Song Networks
8708 216 275 201 Romania Data Systems S.A.
24863 213 42 11 LINKdotNET AS number
3215 200 1680 93 France Telecom Transpac
8551 200 198 24 Bezeq International
3269 198 2134 72 TELECOM ITALIA
1257 190 740 166 SWIPnet Swedish IP Network
30890 189 17 70 SC Kappa Invexim SRL
8866 180 37 15 Bulgarian Telecommunication C
5400 172 348 141 BT Ignite European Backbone
6830 172 781 36 UPC Distribution Services
786 171 1778 171 The JANET IP Service
9121 170 931 28 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1066 225 UniNet S.A. de C.V.
22047 418 158 11 VTR PUNTO NET S.A.
11172 351 110 83 Servicios Alestra S.A de C.V
16814 330 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 201 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 173 81 25 Telecom Argentina Stet-France
6503 133 150 81 AVANTEL, S.A.
21826 133 17 23 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19169 129 8 21 Telconet
14259 119 10 15 GTD Internet S.A.
23216 114 21 9 RAMtelecom Telecomunicaciones
14522 113 16 5 SatNet S.A.
19429 110 60 44 E.T.B.
6505 109 88 79 Global One Communicaoes Ltda
7910 105 7 10 ANDINET ON LINE
5639 103 12 9 Telecommunications Services o
18822 98 7 9 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 285 803 233 The Internet Solution
8452 167 60 7 TEDATA
6713 147 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 104 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
15475 53 84 4 Nile Online
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 7 21 AS Number for Telecom Algeria
12455 26 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
16637 25 18 23 Johnnic e-Ventures
8524 22 1 5 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
33766 21 2 1 Nyala Communications Pty Ltd
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1303 1043 Time Warner Telecom
4134 1205 983 CHINANET-BACKBONE
18566 897 889 Covad Communications
9583 900 884 Sify Limited
19029 947 838 New Edge Networks
4755 868 801 Videsh Sanchar Nigam Ltd. Aut
721 1014 703 DLA Systems Automation Center
22773 661 621 Cox Communications, Inc.
11492 631 610 Cable One
19262 709 536 Verizon Global Networks
6197 1008 529 BellSouth Network Solutions,
17488 520 511 Hathway IP Over Cable Interne
19916 563 509 OLM LLC
9498 574 507 BHARTI BT INTERNET LTD.
5668 530 507 CenturyTel Internet Holdings,
855 553 489 Canadian Research Network
8151 705 480 UniNet S.A. de C.V.
7545 534 464 TPG Internet Pty Ltd
3602 524 419 Sprint Canada, Inc.
22047 418 407 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
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
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 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 /8:18 /9:9 /10:9 /11:28 /12:92
/13:200 /14:360 /15:705 /16:8829 /17:3240 /18:5370
/19:11705 /20:13223 /21:11497 /22:14685 /23:15799 /24:102724
/25:369 /26:293 /27:184 /28:66 /29:71 /30:49
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 880 897 Covad Communications
19029 878 947 New Edge Networks
6197 793 1008 BellSouth Network Solutions,
7018 784 1480 AT&T WorldNet Services
9583 729 900 Sify Limited
4323 636 1303 Time Warner Telecom
11492 622 631 Cable One
2386 612 893 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 546 637 Citizens Utilities
4766 500 690 Korea Telecom (KIX)
855 427 553 Canadian Research Network
5668 413 530 CenturyTel Internet Holdings,
15270 402 433 PaeTec.net -a division of Pae
1239 391 845 Sprint
6517 364 395 Yipes Communications, Inc.
17849 359 359 Telecommunications Technology
702 358 574 UUNET - Commercial IP service
6198 355 507 BellSouth Network Solutions,
8151 349 705 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:42 11:1 12:1619 13:1 15:14
16:3 17:3 18:4 20:43 24:739 25:1
30:2 32:89 38:229 40:54 41:3 44:3
47:6 52:4 55:1 56:3 57:25 58:180
59:207 60:180 61:869 62:760 63:1914 64:3179
65:2253 66:3054 67:612 68:668 69:1524 70:371
71:80 72:747 74:39 80:780 81:655 82:589
83:393 84:387 85:537 86:383 87:355 88:90
89:234 124:292 125:456 128:159 129:190 130:116
131:316 132:33 133:8 134:159 135:48 136:177
137:78 138:205 139:61 140:470 141:128 142:382
143:165 144:224 145:39 146:327 147:134 148:316
149:188 150:113 151:94 152:69 153:107 154:5
155:202 156:99 157:151 158:167 159:172 160:89
161:76 162:245 163:147 164:178 165:197 166:166
167:245 168:488 169:128 170:339 171:14 183:1
190:75 192:5750 193:3373 194:2631 195:1884 196:851
198:3907 199:3218 200:4465 201:981 202:6647 203:6942
204:3817 205:2043 206:2417 207:2899 208:2131 209:3782
210:1952 211:676 212:1260 213:1459 214:364 215:40
216:4159 217:1157 218:286 219:226 220:716 221:357
222:158
End of report
