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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 18 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 192537
Prefixes after maximum aggregation: 105896
Unique aggregates announced to Internet: 94035
Total ASes present in the Internet Routing Table: 22657
Origin-only ASes present in the Internet Routing Table: 19707
Origin ASes announcing only one prefix: 9455
Transit ASes present in the Internet Routing Table: 2950
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 27
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1535482024
Equivalent to 91 /8s, 133 /16s and 152 /24s
Percentage of available address space announced: 41.4
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 95177
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41576
Total APNIC prefixes after maximum aggregation: 17119
Prefixes being announced from the APNIC address blocks: 39259
Unique aggregates announced from the APNIC address blocks: 18443
APNIC Region origin ASes present in the Internet Routing Table: 2629
APNIC Region origin ASes announcing only one prefix: 746
APNIC Region transit ASes present in the Internet Routing Table: 394
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 239282272
Equivalent to 14 /8s, 67 /16s and 40 /24s
Percentage of available APNIC address space announced: 74.8
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: 97749
Total ARIN prefixes after maximum aggregation: 58215
Prefixes being announced from the ARIN address blocks: 71547
Unique aggregates announced from the ARIN address blocks: 27034
ARIN Region origin ASes present in the Internet Routing Table: 10823
ARIN Region origin ASes announcing only one prefix: 4075
ARIN Region transit ASes present in the Internet Routing Table: 1006
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 296300544
Equivalent to 17 /8s, 169 /16s and 48 /24s
Percentage of available ARIN address space announced: 76.8
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: 38937
Total RIPE prefixes after maximum aggregation: 25901
Prefixes being announced from the RIPE address blocks: 35821
Unique aggregates announced from the RIPE address blocks: 24052
RIPE Region origin ASes present in the Internet Routing Table: 8274
RIPE Region origin ASes announcing only one prefix: 4353
RIPE Region transit ASes present in the Internet Routing Table: 1358
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 260150596
Equivalent to 15 /8s, 129 /16s and 149 /24s
Percentage of available RIPE address space announced: 81.6
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: 11982
Total LACNIC prefixes after maximum aggregation: 3765
Prefixes being announced from the LACNIC address blocks: 10023
Unique aggregates announced from the LACNIC address blocks: 5683
LACNIC Region origin ASes present in the Internet Routing Table: 707
LACNIC Region origin ASes announcing only one prefix: 237
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 31136000
Equivalent to 1 /8s, 219 /16s and 25 /24s
Percentage of available LACNIC address space announced: 46.4
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: 2291
Total AfriNIC prefixes after maximum aggregation: 896
Prefixes being announced from the AfriNIC address blocks: 1537
Unique aggregates announced from the AfriNIC address blocks: 941
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: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4188928
Equivalent to 0 /8s, 63 /16s and 235 /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 1241 7503 236 CHINANET-BACKBONE
4755 968 257 73 Videsh Sanchar Nigam Ltd. Aut
9583 913 109 15 Sify Limited
9498 768 211 71 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 610 1779 468 Telstra Pty Ltd
7545 550 124 73 TPG Internet Pty Ltd
17488 519 32 17 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 449 111 83 Primus Telecommunications
18101 427 85 23 Reliance Infocom Ltd Internet
17974 404 129 14 PT TELEKOMUNIKASI INDONESIA
17849 396 28 123 Telecommunications Technology
17557 382 30 172 Pakistan Telecom
4802 378 81 167 Wantree Development
2907 336 1733 311 SINET Japan
9929 303 231 60 China Netcom Corp.
7474 295 211 229 SingTel Optus Pty Ltd
4837 292 3206 129 chinanet IDC center beijing n
10139 281 19 5 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6246 945 AT&T WorldNet Services
721 1024 21934 310 DLA Systems Automation Center
6197 1014 635 476 BellSouth Network Solutions,
4323 965 746 271 Time Warner Telecom
18566 947 272 8 Covad Communications
174 943 5769 891 Cogent Communications
701 942 6753 777 UUNET Technologies, Inc.
2386 919 558 709 AT&T Data Communications Serv
1239 851 2785 601 Sprint
19262 724 2206 188 Verizon Global Networks
20115 716 622 382 Charter Communications
209 695 3663 548 Qwest
22773 674 1741 40 Cox Communications, Inc.
11492 658 89 12 Cable One
7011 648 218 412 Citizens Utilities
6198 598 555 235 BellSouth Network Solutions,
852 582 1084 381 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 533 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 562 1932 442 UUNET - Commercial IP service
1103 366 1990 80 SURFnet, The Netherlands
3301 316 1187 301 TeliaNet Sweden
3352 305 1639 33 Ibernet, Internet Access Netw
3320 286 5012 234 Deutsche Telekom AG
8220 280 471 266 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 235 89 212 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 219 42 11 LINKdotNET AS number
8708 215 276 204 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
30890 207 19 80 SC Kappa Invexim SRL
3215 204 1760 97 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
1257 194 741 166 SWIPnet Swedish IP Network
8866 189 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 97 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 702 1787 228 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 358 113 85 Servicios Alestra S.A de C.V
16814 331 20 8 NSS, S.A.
6147 268 134 22 Telefonica Del Peru
6471 253 74 28 ENTEL CHILE S.A.
14117 211 13 7 Telefonica del Sur S.A.
6503 181 151 82 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.
14522 129 18 9 SatNet S.A.
19169 129 8 26 Telconet
14259 119 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
7738 111 410 20 Telecomunicacoes da Bahia S.A
5639 109 12 9 Telecommunications Services o
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 169 60 7 TEDATA
6713 150 135 11 Itissalat Al-MAGHRIB
2018 135 314 105 Tertiary Education Network
15475 131 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 106 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 31 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
12455 20 6 3 Jambonet Autonomous system
21491 20 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1241 1005 CHINANET-BACKBONE
18566 947 939 Covad Communications
9583 913 898 Sify Limited
4755 968 895 Videsh Sanchar Nigam Ltd. Aut
721 1024 714 DLA Systems Automation Center
9498 768 697 BHARTI BT INTERNET LTD.
4323 965 694 Time Warner Telecom
11492 658 646 Cable One
22773 674 634 Cox Communications, Inc.
6197 1014 538 BellSouth Network Solutions,
19262 724 536 Verizon Global Networks
5668 533 510 CenturyTel Internet Holdings,
19916 563 509 OLM LLC
17488 519 502 Hathway IP Over Cable Interne
855 573 499 Canadian Research Network
7545 550 477 TPG Internet Pty Ltd
8151 702 474 UniNet S.A. de C.V.
22047 432 421 VTR PUNTO NET S.A.
3602 522 418 Sprint Canada, Inc.
15270 445 412 PaeTec.net -a division of Pae
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
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 /8:16 /9:9 /10:11 /11:28 /12:95
/13:202 /14:369 /15:724 /16:8911 /17:3319 /18:5446
/19:11895 /20:13511 /21:11784 /22:14935 /23:16103 /24:104041
/25:377 /26:297 /27:192 /28:67 /29:79 /30:80
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 930 947 Covad Communications
6197 794 1014 BellSouth Network Solutions,
7018 778 1474 AT&T WorldNet Services
9583 743 913 Sify Limited
11492 646 658 Cable One
2386 633 919 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 556 648 Citizens Utilities
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 442 598 BellSouth Network Solutions,
9498 431 768 BHARTI BT INTERNET LTD.
5668 416 533 CenturyTel Internet Holdings,
15270 414 445 PaeTec.net -a division of Pae
1239 397 851 Sprint
17849 390 396 Telecommunications Technology
4755 383 968 Videsh Sanchar Nigam Ltd. Aut
6517 375 409 Yipes Communications, Inc.
18101 358 427 Reliance Infocom Ltd Internet
22773 355 674 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:43 12:1611 13:1 15:15 16:3
17:3 18:4 20:41 24:778 25:1 32:58
38:235 40:54 41:7 44:3 47:6 52:4
55:1 56:3 57:26 58:192 59:249 60:195
61:858 62:813 63:1890 64:3080 65:2238 66:2942
67:623 68:675 69:1543 70:389 71:86 72:820
74:56 75:1 80:769 81:666 82:627 83:397
84:385 85:566 86:408 87:404 88:115 89:344
91:1 121:3 122:3 123:1 124:275 125:557
128:156 129:183 130:119 131:314 132:34 133:8
134:159 135:49 136:177 137:83 138:206 139:51
140:488 141:135 142:384 143:169 144:230 145:42
146:317 147:137 148:347 149:191 150:115 151:96
152:70 153:117 154:5 155:206 156:186 157:143
158:166 159:173 160:93 161:77 162:246 163:161
164:243 165:222 166:174 167:243 168:498 169:125
170:354 171:14 183:1 190:89 192:5805 193:3355
194:2717 195:2010 196:854 198:3962 199:3294 200:4616
201:969 202:6756 203:7090 204:3897 205:2035 206:2404
207:2916 208:2192 209:3403 210:2068 211:714 212:1243
213:1482 214:363 215:41 216:4005 217:1178 218:296
219:228 220:735 221:351 222:189
End of report
