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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 31 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 193472
Prefixes after maximum aggregation: 106457
Unique aggregates announced to Internet: 94537
Total ASes present in the Internet Routing Table: 22748
Origin-only ASes present in the Internet Routing Table: 19809
Origin ASes announcing only one prefix: 9482
Transit ASes present in the Internet Routing Table: 2939
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (24076) 20
Prefixes from unregistered ASNs in the Routing Table: 23
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1559273388
Equivalent to 92 /8s, 240 /16s and 159 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 60.9
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 95879
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 42297
Total APNIC prefixes after maximum aggregation: 17451
Prefixes being announced from the APNIC address blocks: 39996
Unique aggregates announced from the APNIC address blocks: 18690
APNIC Region origin ASes present in the Internet Routing Table: 2658
APNIC Region origin ASes announcing only one prefix: 752
APNIC Region transit ASes present in the Internet Routing Table: 390
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 243683680
Equivalent to 14 /8s, 134 /16s and 81 /24s
Percentage of available APNIC address space announced: 76.2
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: 98028
Total ARIN prefixes after maximum aggregation: 58339
Prefixes being announced from the ARIN address blocks: 71847
Unique aggregates announced from the ARIN address blocks: 27086
ARIN Region origin ASes present in the Internet Routing Table: 10843
ARIN Region origin ASes announcing only one prefix: 4090
ARIN Region transit ASes present in the Internet Routing Table: 1001
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 298257152
Equivalent to 17 /8s, 199 /16s and 11 /24s
Percentage of available ARIN address space announced: 77.3
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: 38849
Total RIPE prefixes after maximum aggregation: 26021
Prefixes being announced from the RIPE address blocks: 35901
Unique aggregates announced from the RIPE address blocks: 24118
RIPE Region origin ASes present in the Internet Routing Table: 8309
RIPE Region origin ASes announcing only one prefix: 4357
RIPE Region transit ASes present in the Internet Routing Table: 1363
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 260901444
Equivalent to 15 /8s, 141 /16s and 10 /24s
Percentage of available RIPE address space announced: 81.8
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: 11998
Total LACNIC prefixes after maximum aggregation: 3743
Prefixes being announced from the LACNIC address blocks: 10076
Unique aggregates announced from the LACNIC address blocks: 5746
LACNIC Region origin ASes present in the Internet Routing Table: 715
LACNIC Region origin ASes announcing only one prefix: 239
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 31387136
Equivalent to 1 /8s, 222 /16s and 238 /24s
Percentage of available LACNIC address space announced: 46.8
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: 2277
Total AfriNIC prefixes after maximum aggregation: 903
Prefixes being announced from the AfriNIC address blocks: 1543
Unique aggregates announced from the AfriNIC address blocks: 982
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4201472
Equivalent to 0 /8s, 64 /16s and 28 /24s
Percentage of available AfriNIC address space announced: 12.5
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 1290 7855 239 CHINANET-BACKBONE
4755 982 257 73 Videsh Sanchar Nigam Ltd. Aut
9583 925 109 15 Sify Limited
9498 776 211 70 BHARTI BT INTERNET LTD.
4766 693 4435 302 Korea Telecom (KIX)
1221 609 1779 466 Telstra Pty Ltd
7545 551 124 73 TPG Internet Pty Ltd
17488 520 32 18 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 449 111 83 Primus Telecommunications
18101 429 85 22 Reliance Infocom Ltd Internet
4812 412 740 61 China Telecom (Shanghai)
17849 401 30 122 Telecommunications Technology
17974 386 129 14 PT TELEKOMUNIKASI INDONESIA
17557 380 30 176 Pakistan Telecom
4802 378 81 167 Wantree Development
2907 336 1733 311 SINET Japan
4837 302 3444 139 chinanet IDC center beijing n
7474 294 211 228 SingTel Optus Pty Ltd
10139 285 23 6 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1483 6252 952 AT&T WorldNet Services
721 1025 21942 314 DLA Systems Automation Center
6197 1014 635 477 BellSouth Network Solutions,
701 965 6771 790 UUNET Technologies, Inc.
4323 963 746 272 Time Warner Telecom
18566 950 272 8 Covad Communications
174 938 5769 887 Cogent Communications
2386 913 559 704 AT&T Data Communications Serv
1239 857 2783 604 Sprint
19262 728 2228 187 Verizon Global Networks
11492 718 89 15 Cable One
20115 717 623 383 Charter Communications
209 692 3662 545 Qwest
22773 680 1741 40 Cox Communications, Inc.
7011 650 218 414 Citizens Utilities
6198 597 556 236 BellSouth Network Solutions,
852 581 1068 381 Telus Advanced Communications
855 564 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 544 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 561 1932 441 UUNET - Commercial IP service
3301 316 1187 301 TeliaNet Sweden
3320 288 5012 235 Deutsche Telekom AG
8220 280 471 266 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 242 90 220 Dynamic Network Technologies,
24863 236 42 11 LINKdotNET AS number
3352 235 1639 32 Ibernet, Internet Access Netw
3246 230 462 220 Song Networks
8708 211 276 201 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
30890 207 19 79 SC Kappa Invexim SRL
3215 204 1760 97 France Telecom Transpac
3269 203 2246 73 TELECOM ITALIA
1257 195 742 167 SWIPnet Swedish IP Network
8866 188 37 15 Bulgarian Telecommunication C
5416 179 12 11 BATELCO-BH
6830 177 813 37 UPC Distribution Services
3300 171 171 98 AUCS Communications Services
786 169 1778 169 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 750 1803 224 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 360 113 86 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 273 134 22 Telefonica Del Peru
6471 253 74 28 ENTEL CHILE S.A.
14117 217 13 7 Telefonica del Sur S.A.
6503 183 151 83 AVANTEL, S.A.
7303 181 84 29 Telecom Argentina Stet-France
10481 181 72 8 Prima S.A.
21826 133 17 22 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 131 84 45 E.T.B.
19169 128 8 25 Telconet
14522 123 18 9 SatNet S.A.
7910 114 7 16 ANDINET ON LINE
14259 113 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
7738 111 410 20 Telecomunicacoes da Bahia S.A
6505 109 88 79 Global One Communicaoes Ltda
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 284 803 231 The Internet Solution
8452 170 60 7 TEDATA
6713 146 135 11 Itissalat Al-MAGHRIB
2018 135 314 105 Tertiary Education Network
15475 131 84 4 Nile Online
5536 121 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 106 6 2 EEPAD TISP TELECOM & INTERNET
2905 78 159 69 The Internetworking Company o
20928 59 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 30 7 21 AS Number for Telecom Algeria
16637 25 18 23 Johnnic e-Ventures
23889 24 8 11 MAURITIUS TELECOM
10798 23 1 14 Standard Bank of South Africa
8524 22 1 5 AUCEGYPT Autonomous System
33766 21 2 1 Nyala Communications Pty Ltd
21491 20 17 2 UTL On-line is RF broadband I
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1290 1051 CHINANET-BACKBONE
18566 950 942 Covad Communications
9583 925 910 Sify Limited
4755 982 909 Videsh Sanchar Nigam Ltd. Aut
721 1025 711 DLA Systems Automation Center
9498 776 706 BHARTI BT INTERNET LTD.
11492 718 703 Cable One
4323 963 691 Time Warner Telecom
22773 680 640 Cox Communications, Inc.
19262 728 541 Verizon Global Networks
6197 1014 537 BellSouth Network Solutions,
8151 750 526 UniNet S.A. de C.V.
5668 544 521 CenturyTel Internet Holdings,
19916 563 509 OLM LLC
17488 520 502 Hathway IP Over Cable Interne
855 564 490 Canadian Research Network
7545 551 478 TPG Internet Pty Ltd
22047 432 421 VTR PUNTO NET S.A.
15270 450 417 PaeTec.net -a division of Pae
3602 521 416 Sprint Canada, Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 193.109.15.0/24 12690 MKS Autonomous Syste
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65350 PRIVATE 219.148.0.0/22 17672 asn for Hebei Provin
65350 PRIVATE 219.148.4.0/23 17672 asn for Hebei Provin
65350 PRIVATE 219.148.8.0/21 17672 asn for Hebei Provin
65350 PRIVATE 219.148.24.0/21 17672 asn for Hebei Provin
65350 PRIVATE 219.148.32.0/19 17672 asn for Hebei Provin
65350 PRIVATE 219.148.40.0/24 17672 asn for Hebei Provin
65350 PRIVATE 222.222.0.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.222.8.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.222.16.0/20 17672 asn for Hebei Provin
65350 PRIVATE 222.222.32.0/20 17672 asn for Hebei Provin
65350 PRIVATE 222.222.48.0/20 17672 asn for Hebei Provin
65350 PRIVATE 222.222.208.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.222.216.0/21 17672 asn for Hebei Provin
65350 PRIVATE 222.223.187.0/24 17672 asn for Hebei Provin
65350 PRIVATE 222.223.188.0/22 17672 asn for Hebei Provin
65350 PRIVATE 222.223.192.0/22 17672 asn for Hebei Provin
65350 PRIVATE 222.223.196.0/23 17672 asn for Hebei Provin
65350 PRIVATE 222.223.200.0/22 17672 asn for Hebei Provin
65350 PRIVATE 222.223.206.0/23 17672 asn for Hebei Provin
65350 PRIVATE 222.223.224.0/19 17672 asn for Hebei Provin
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.0/24 3301 TeliaNet Sweden
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 /8:17 /9:9 /10:11 /11:28 /12:97
/13:206 /14:372 /15:733 /16:8918 /17:3372 /18:5504
/19:11960 /20:13563 /21:11820 /22:14995 /23:16190 /24:104592
/25:381 /26:293 /27:186 /28:62 /29:38 /30:78
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 933 950 Covad Communications
6197 794 1014 BellSouth Network Solutions,
7018 783 1483 AT&T WorldNet Services
9583 756 925 Sify Limited
11492 706 718 Cable One
2386 631 913 AT&T Data Communications Serv
7011 558 650 Citizens Utilities
19916 557 563 OLM LLC
4766 504 693 Korea Telecom (KIX)
9498 445 776 BHARTI BT INTERNET LTD.
6198 440 597 BellSouth Network Solutions,
855 438 564 Canadian Research Network
5668 426 544 CenturyTel Internet Holdings,
15270 419 450 PaeTec.net -a division of Pae
1239 401 857 Sprint
4755 395 982 Videsh Sanchar Nigam Ltd. Aut
17849 395 401 Telecommunications Technology
6517 377 410 Yipes Communications, Inc.
18101 365 429 Reliance Infocom Ltd Internet
22773 359 680 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:48 12:1595 13:1 15:15 16:3
17:3 18:4 20:41 24:796 25:1 32:59
38:239 40:53 41:8 44:3 47:6 52:4
55:1 56:3 57:26 58:205 59:246 60:178
61:922 62:804 63:1887 64:3088 65:2244 66:2957
67:629 68:673 69:1566 70:392 71:87 72:832
74:61 75:1 80:787 81:674 82:642 83:383
84:395 85:565 86:409 87:462 88:140 89:380
91:1 121:10 122:3 123:1 124:340 125:571
128:149 129:188 130:118 131:317 132:34 133:8
134:159 135:49 136:173 137:85 138:210 139:46
140:491 141:136 142:373 143:187 144:238 145:40
146:317 147:140 148:350 149:186 150:114 151:98
152:71 153:116 154:5 155:212 156:177 157:137
158:167 159:173 160:93 161:77 162:244 163:164
164:238 165:223 166:182 167:243 168:484 169:125
170:354 171:14 183:1 190:96 192:5731 193:3381
194:2670 195:2000 196:862 198:3900 199:3295 200:4618
201:1026 202:6787 203:7067 204:3890 205:2036 206:2427
207:2919 208:2201 209:3424 210:2150 211:809 212:1247
213:1396 214:363 215:41 216:4016 217:1201 218:315
219:244 220:744 221:360 222:217
End of report
