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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 25 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/25/0400
Analysis Summary
----------------
BGP routing table entries examined: 224029
Prefixes after maximum aggregation: 117814
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 107854
Total ASes present in the Internet Routing Table: 25508
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22203
Origin ASes announcing only one prefix: 10776
Transit ASes present in the Internet Routing Table: 3305
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1725539936
Equivalent to 102 /8s, 217 /16s and 166 /24s
Percentage of available address space announced: 46.6
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 117674
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52379
Total APNIC prefixes after maximum aggregation: 20119
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 49307
Unique aggregates announced from the APNIC address blocks: 20596
APNIC Region origin ASes present in the Internet Routing Table: 2985
APNIC Prefixes per ASN: 16.52
APNIC Region origin ASes announcing only one prefix: 801
APNIC Region transit ASes present in the Internet Routing Table: 456
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 300686752
Equivalent to 17 /8s, 236 /16s and 29 /24s
Percentage of available APNIC address space announced: 74.5
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, 116/6, 120/6, 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: 106986
Total ARIN prefixes after maximum aggregation: 62172
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78654
Unique aggregates announced from the ARIN address blocks: 31138
ARIN Region origin ASes present in the Internet Routing Table: 11644
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4478
ARIN Region transit ASes present in the Internet Routing Table: 1068
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 337046912
Equivalent to 20 /8s, 22 /16s and 237 /24s
Percentage of available ARIN address space announced: 74.4
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 47075
Total RIPE prefixes after maximum aggregation: 30246
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43497
Unique aggregates announced from the RIPE address blocks: 28757
RIPE Region origin ASes present in the Internet Routing Table: 9804
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5186
RIPE Region transit ASes present in the Internet Routing Table: 1567
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 317667840
Equivalent to 18 /8s, 239 /16s and 58 /24s
Percentage of available RIPE address space announced: 78.9
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15067
Total LACNIC prefixes after maximum aggregation: 4265
LACNIC Deaggregation factor: 3.53
Prefixes being announced from the LACNIC address blocks: 13105
Unique aggregates announced from the LACNIC address blocks: 7434
LACNIC Region origin ASes present in the Internet Routing Table: 807
LACNIC Prefixes per ASN: 16.24
LACNIC Region origin ASes announcing only one prefix: 255
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 39369728
Equivalent to 2 /8s, 88 /16s and 188 /24s
Percentage of available LACNIC address space announced: 58.7
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: 2516
Total AfriNIC prefixes after maximum aggregation: 1004
AfriNIC Deaggregation factor: 2.51
Prefixes being announced from the AfriNIC address blocks: 1993
Unique aggregates announced from the AfriNIC address blocks: 1215
AfriNIC Region origin ASes present in the Internet Routing Table: 190
AfriNIC Prefixes per ASN: 10.49
AfriNIC Region origin ASes announcing only one prefix: 56
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6180352
Equivalent to 0 /8s, 94 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 18.4
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 1295 10021 281 CHINANET-BACKBONE
4755 1237 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1111 108 17 Sify Limited
9498 999 469 66 BHARTI BT INTERNET LTD.
4766 789 4943 312 Korea Telecom (KIX)
23577 780 35 706 Korea Telecom (ATM-MPLS)
17488 704 46 41 Hathway IP Over Cable Interne
7545 614 148 93 TPG Internet Pty Ltd
18101 558 117 35 Reliance Infocom Ltd Internet
1221 535 1954 417 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 469 882 87 China Telecom (Shanghai)
9443 467 121 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 409 88 149 Wantree Development
17974 371 129 12 PT TELEKOMUNIKASI INDONESIA
4808 365 667 113 CNCGROUP IP network: China169
2907 362 1700 301 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 6102 982 AT&T WorldNet Services
4323 1308 1042 367 Time Warner Telecom
2386 1200 615 749 AT&T Data Communications Serv
6478 1118 366 148 AT&T Worldnet Services
11492 1091 107 23 Cable One
6197 1024 716 509 BellSouth Network Solutions,
18566 1011 288 9 Covad Communications
174 958 6778 870 Cogent Communications
701 953 6597 724 UUNET Technologies, Inc.
7011 845 250 535 Citizens Utilities
1239 802 2734 574 Sprint
20115 799 730 425 Charter Communications
19262 777 2721 201 Verizon Global Networks
209 753 3855 581 Qwest
22773 726 1892 44 Cox Communications, Inc.
5668 614 169 20 CenturyTel Internet Holdings,
7029 598 488 80 Alltel Information Services,
852 579 1088 363 Telus Advanced Communications
855 575 254 73 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 514 1075 136 Telenor Internet Access
702 510 1938 402 UUNET - Commercial IP service
24863 351 56 35 LINKdotNET AS number
3307 322 180 43 BaneTele AS (formerly Enitel)
3301 310 1455 290 TeliaNet Sweden
3320 306 6034 257 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
680 264 2044 255 DFN-IP service G-WiN
3215 250 2320 93 France Telecom Transpac
8220 249 444 241 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
5089 221 1658 53 NTL Group Limited
3269 218 2679 75 TELECOM ITALIA
3352 216 1848 43 Ibernet, Internet Access Netw
9121 209 1441 24 TTnet Autonomous System
9116 199 136 25 Goldenlines main autonomous s
1257 197 1196 175 SWIPnet Swedish IP Network
3246 194 329 184 Song Networks
12479 188 578 6 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 850 1918 211 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 368 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 313 238 12 VTR PUNTO NET S.A.
7303 296 144 31 Telecom Argentina Stet-France
6471 274 74 33 ENTEL CHILE S.A.
14117 255 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 224 170 26 Telefonica Del Peru
6503 211 188 84 AVANTEL, S.A.
10620 208 59 14 TVCABLE BOGOTA
23216 186 19 42 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 171 27 8 SatNet S.A.
21826 157 27 59 INTERCABLE
19169 153 10 31 Telconet
20299 150 23 12 NEWCOM AMERICAS
7738 146 474 22 Telecomunicacoes da Bahia S.A
8163 143 9 7 METROTEL REDES S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 280 867 221 The Internet Solution
8452 212 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 119 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
15475 74 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 48 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 36 2 2 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
21280 27 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1237 1165 Videsh Sanchar Nigam Ltd. Aut
9583 1111 1094 Sify Limited
11492 1091 1068 Cable One
4134 1295 1014 CHINANET-BACKBONE
18566 1011 1002 Covad Communications
6478 1118 970 AT&T Worldnet Services
4323 1308 941 Time Warner Telecom
9498 999 933 BHARTI BT INTERNET LTD.
22773 726 682 Cox Communications, Inc.
17488 704 663 Hathway IP Over Cable Interne
8151 850 639 UniNet S.A. de C.V.
5668 614 594 CenturyTel Internet Holdings,
19262 777 576 Verizon Global Networks
18101 558 523 Reliance Infocom Ltd Internet
7545 614 521 TPG Internet Pty Ltd
7029 598 518 Alltel Information Services,
19916 568 517 OLM LLC
6197 1024 515 BellSouth Network Solutions,
15270 549 514 PaeTec.net -a division of Pae
6517 547 514 Yipes Communications, Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
94.110.196.0/24 21161 Bechtle Autonomous System
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
172.33.1.0/24 7018 AT&T WorldNet Services
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /10:15 /11:35 /12:125
/13:247 /14:462 /15:892 /16:9485 /17:4007 /18:6466
/19:13663 /20:15790 /21:14200 /22:18549 /23:19634 /24:118073
/25:799 /26:979 /27:477 /28:67 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1108 1118 AT&T Worldnet Services
11492 1082 1091 Cable One
18566 993 1011 Covad Communications
9583 944 1111 Sify Limited
2386 901 1200 AT&T Data Communications Serv
7018 795 1481 AT&T WorldNet Services
6197 776 1024 BellSouth Network Solutions,
23577 766 780 Korea Telecom (ATM-MPLS)
7011 746 845 Citizens Utilities
9498 670 999 BHARTI BT INTERNET LTD.
4755 637 1237 Videsh Sanchar Nigam Ltd. Aut
4766 595 789 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 545 1308 Time Warner Telecom
17488 527 704 Hathway IP Over Cable Interne
15270 516 549 PaeTec.net -a division of Pae
6517 515 547 Yipes Communications, Inc.
4668 498 508 LG-EDS Systems Inc.
5668 478 614 CenturyTel Internet Holdings,
18101 474 558 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:81 9:1 12:1809 15:18
16:3 17:3 18:11 20:38 24:934 25:1
32:51 33:2 38:324 40:61 41:169 44:2
47:4 52:4 55:3 56:3 57:24 58:418
59:401 60:308 61:988 62:875 63:1978 64:3122
65:2357 66:3277 67:747 68:637 69:1890 70:429
71:112 72:1326 73:1 74:532 75:261 76:65
77:246 78:2 80:816 81:811 82:694 83:390
84:416 85:941 86:339 87:481 88:286 89:856
90:7 91:377 94:1 97:6 98:3 116:194
117:58 121:208 122:555 123:117 124:856 125:945
128:287 129:224 130:128 131:366 132:53 133:9
134:193 135:39 136:184 137:81 138:142 139:74
140:479 141:172 142:373 143:250 144:296 145:43
146:320 147:119 148:398 149:146 150:113 151:158
152:93 153:126 154:4 155:247 156:152 157:196
158:157 159:161 160:106 161:88 162:225 163:182
164:446 165:409 166:294 167:287 168:511 169:119
170:404 171:17 172:1 189:60 190:612 192:5768
193:3887 194:3184 195:2309 196:913 198:3828 199:3293
200:4832 201:1070 202:7416 203:7511 204:3964 205:2029
206:2414 207:2811 208:2696 209:3506 210:2484 211:961
212:1309 213:1496 214:415 215:40 216:3980 217:1150
218:350 219:383 220:974 221:411 222:261
End of report
