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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 18 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/18/0400
Analysis Summary
----------------
BGP routing table entries examined: 223277
Prefixes after maximum aggregation: 117858
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 108574
Total ASes present in the Internet Routing Table: 25460
Prefixes per ASN: 8.77
Origin-only ASes present in the Internet Routing Table: 22156
Origin ASes announcing only one prefix: 10758
Transit ASes present in the Internet Routing Table: 3304
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1738409312
Equivalent to 103 /8s, 158 /16s and 5 /24s
Percentage of available address space announced: 46.9
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 117020
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52246
Total APNIC prefixes after maximum aggregation: 20462
APNIC Deaggregation factor: 2.55
Prefixes being announced from the APNIC address blocks: 49184
Unique aggregates announced from the APNIC address blocks: 21577
APNIC Region origin ASes present in the Internet Routing Table: 2975
APNIC Prefixes per ASN: 16.53
APNIC Region origin ASes announcing only one prefix: 798
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: 299926176
Equivalent to 17 /8s, 224 /16s and 130 /24s
Percentage of available APNIC address space announced: 74.3
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: 106661
Total ARIN prefixes after maximum aggregation: 62062
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78412
Unique aggregates announced from the ARIN address blocks: 31031
ARIN Region origin ASes present in the Internet Routing Table: 11634
ARIN Prefixes per ASN: 6.74
ARIN Region origin ASes announcing only one prefix: 4471
ARIN Region transit ASes present in the Internet Routing Table: 1071
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 336133504
Equivalent to 20 /8s, 8 /16s and 253 /24s
Percentage of available ARIN address space announced: 74.2
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: 46672
Total RIPE prefixes after maximum aggregation: 30113
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43166
Unique aggregates announced from the RIPE address blocks: 28612
RIPE Region origin ASes present in the Internet Routing Table: 9780
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5179
RIPE Region transit ASes present in the Internet Routing Table: 1565
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 315285504
Equivalent to 18 /8s, 202 /16s and 224 /24s
Percentage of available RIPE address space announced: 78.3
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: 15118
Total LACNIC prefixes after maximum aggregation: 4207
LACNIC Deaggregation factor: 3.59
Prefixes being announced from the LACNIC address blocks: 13156
Unique aggregates announced from the LACNIC address blocks: 7433
LACNIC Region origin ASes present in the Internet Routing Table: 804
LACNIC Prefixes per ASN: 16.36
LACNIC Region origin ASes announcing only one prefix: 253
LACNIC Region transit ASes present in the Internet Routing Table: 139
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 39580416
Equivalent to 2 /8s, 91 /16s and 243 /24s
Percentage of available LACNIC address space announced: 59.0
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: 2571
Total AfriNIC prefixes after maximum aggregation: 1004
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1981
Unique aggregates announced from the AfriNIC address blocks: 1208
AfriNIC Region origin ASes present in the Internet Routing Table: 190
AfriNIC Prefixes per ASN: 10.43
AfriNIC Region origin ASes announcing only one prefix: 57
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6243584
Equivalent to 0 /8s, 95 /16s and 69 /24s
Percentage of available AfriNIC address space announced: 18.6
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 1289 9973 279 CHINANET-BACKBONE
4755 1232 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1102 79 392 Sify Limited
9498 1002 469 67 BHARTI BT INTERNET LTD.
4766 787 4943 312 Korea Telecom (KIX)
23577 777 35 705 Korea Telecom (ATM-MPLS)
17488 701 46 40 Hathway IP Over Cable Interne
7545 632 143 82 TPG Internet Pty Ltd
18101 559 117 35 Reliance Infocom Ltd Internet
1221 550 1954 425 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 843 80 China Telecom (Shanghai)
9443 465 121 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 408 86 147 Wantree Development
17974 371 129 12 PT TELEKOMUNIKASI INDONESIA
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 301 SINET Japan
4808 353 668 115 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1473 6112 974 AT&T WorldNet Services
4323 1274 1034 366 Time Warner Telecom
2386 1142 612 754 AT&T Data Communications Serv
6478 1112 364 144 AT&T Worldnet Services
11492 1087 106 22 Cable One
6197 1024 707 508 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
174 955 6780 867 Cogent Communications
701 952 6580 726 UUNET Technologies, Inc.
7011 840 234 531 Citizens Utilities
1239 811 2736 579 Sprint
20115 800 730 426 Charter Communications
19262 776 2703 202 Verizon Global Networks
209 746 3838 581 Qwest
22773 722 1892 44 Cox Communications, Inc.
5668 612 169 20 CenturyTel Internet Holdings,
7029 599 488 80 Alltel Information Services,
852 589 1090 372 Telus Advanced Communications
855 573 253 71 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 515 1938 406 UUNET - Commercial IP service
2119 513 1075 135 Telenor Internet Access
24863 351 56 35 LINKdotNET AS number
3301 310 1471 290 TeliaNet Sweden
3320 308 6034 257 Deutsche Telekom AG
6746 279 129 255 Dynamic Network Technologies,
680 265 2044 256 DFN-IP service G-WiN
3215 249 2296 95 France Telecom Transpac
8220 247 443 239 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
5089 221 1658 53 NTL Group Limited
3269 218 2679 75 TELECOM ITALIA
3352 216 1864 37 Ibernet, Internet Access Netw
9121 208 1441 23 TTnet Autonomous System
8551 207 197 27 Bezeq International
9116 199 136 25 Goldenlines main autonomous s
1257 198 1196 176 SWIPnet Swedish IP Network
3246 196 331 186 Song Networks
12479 189 578 6 Uni2 Autonomous System
3292 181 1303 161 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 849 1920 208 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 372 116 64 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 316 238 12 VTR PUNTO NET S.A.
7303 294 144 30 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 223 168 25 Telefonica Del Peru
6503 211 188 84 AVANTEL, S.A.
10620 207 59 14 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
23216 163 19 42 RAMtelecom Telecomunicaciones
7910 156 11 31 ANDINET ON LINE
21826 154 27 63 INTERCABLE
19429 152 79 41 E.T.B.
20299 147 23 12 NEWCOM AMERICAS
7738 146 474 22 Telecomunicacoes da Bahia 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 214 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 136 84 4 Nile Online
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
2561 61 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
12455 34 6 3 Jambonet Autonomous system
8524 32 2 8 AUCEGYPT 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 1232 1161 Videsh Sanchar Nigam Ltd. Aut
11492 1087 1065 Cable One
4134 1289 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1112 968 AT&T Worldnet Services
9498 1002 935 BHARTI BT INTERNET LTD.
4323 1274 908 Time Warner Telecom
9583 1102 710 Sify Limited
22773 722 678 Cox Communications, Inc.
17488 701 661 Hathway IP Over Cable Interne
8151 849 641 UniNet S.A. de C.V.
5668 612 592 CenturyTel Internet Holdings,
19262 776 574 Verizon Global Networks
7545 632 550 TPG Internet Pty Ltd
18101 559 524 Reliance Infocom Ltd Internet
7029 599 519 Alltel Information Services,
19916 568 517 OLM LLC
6197 1024 516 BellSouth Network Solutions,
15270 546 511 PaeTec.net -a division of Pae
855 573 502 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65019 PRIVATE 63.138.117.0/24 19034 Norcom Networks Corp
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65001 PRIVATE 82.213.31.0/24 12975 PALTEL Autonomous Sy
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 /8:19 /9:9 /10:15 /11:35 /12:124
/13:245 /14:463 /15:888 /16:9460 /17:4016 /18:6454
/19:13640 /20:15739 /21:14189 /22:18460 /23:19523 /24:117643
/25:802 /26:978 /27:474 /28:66 /29:10 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1102 1112 AT&T Worldnet Services
11492 1078 1087 Cable One
18566 992 1010 Covad Communications
9583 944 1102 Sify Limited
2386 840 1142 AT&T Data Communications Serv
7018 789 1473 AT&T WorldNet Services
6197 777 1024 BellSouth Network Solutions,
23577 763 777 Korea Telecom (ATM-MPLS)
7011 742 840 Citizens Utilities
9498 672 1002 BHARTI BT INTERNET LTD.
4755 632 1232 Videsh Sanchar Nigam Ltd. Aut
4766 593 787 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 523 1274 Time Warner Telecom
17488 523 701 Hathway IP Over Cable Interne
15270 513 546 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
5668 477 612 CenturyTel Internet Holdings,
18101 475 559 Reliance Infocom Ltd Internet
855 471 573 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:81 9:1 12:1814 15:18
16:3 17:3 18:8 20:36 24:919 25:1
32:51 33:2 38:322 40:61 41:164 44:2
47:5 52:4 55:3 56:3 57:25 58:416
59:406 60:304 61:984 62:933 63:1972 64:3118
65:2357 66:3249 67:747 68:636 69:1874 70:429
71:112 72:1322 73:1 74:526 75:259 76:42
77:238 78:3 80:820 81:809 82:662 83:392
84:417 85:839 86:385 87:490 88:288 89:833
90:7 91:369 94:1 97:6 98:3 116:193
117:49 121:202 122:547 123:113 124:835 125:944
128:279 129:223 130:128 131:366 132:53 133:9
134:193 135:39 136:180 137:81 138:142 139:71
140:481 141:171 142:372 143:239 144:292 145:43
146:320 147:120 148:397 149:146 150:147 151:158
152:93 153:125 154:4 155:254 156:152 157:188
158:158 159:157 160:106 161:91 162:228 163:183
164:449 165:399 166:241 167:286 168:512 169:119
170:401 171:16 172:1 189:52 190:632 192:5766
193:3872 194:3148 195:2239 196:904 198:3841 199:3290
200:4880 201:1041 202:7386 203:7528 204:3964 205:2036
206:2412 207:2808 208:2656 209:3511 210:2461 211:955
212:1311 213:1477 214:411 215:40 216:4009 217:1142
218:359 219:384 220:976 221:410 222:261
End of report
