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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 18 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/18/0400
Analysis Summary
----------------
BGP routing table entries examined: 225917
Prefixes after maximum aggregation: 118674
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109672
Total ASes present in the Internet Routing Table: 25689
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22396
Origin ASes announcing only one prefix: 10898
Transit ASes present in the Internet Routing Table: 3293
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 11
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: 11
Number of addresses announced to Internet: 1738256160
Equivalent to 103 /8s, 155 /16s and 175 /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: 118938
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52904
Total APNIC prefixes after maximum aggregation: 20584
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 49786
Unique aggregates announced from the APNIC address blocks: 21850
APNIC Region origin ASes present in the Internet Routing Table: 3008
APNIC Prefixes per ASN: 16.55
APNIC Region origin ASes announcing only one prefix: 797
APNIC Region transit ASes present in the Internet Routing Table: 451
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 25
Number of APNIC addresses announced to Internet: 304918688
Equivalent to 18 /8s, 44 /16s and 176 /24s
Percentage of available APNIC address space announced: 75.5
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: 107444
Total ARIN prefixes after maximum aggregation: 62291
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79071
Unique aggregates announced from the ARIN address blocks: 31319
ARIN Region origin ASes present in the Internet Routing Table: 11679
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4506
ARIN Region transit ASes present in the Internet Routing Table: 1065
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 339141696
Equivalent to 20 /8s, 54 /16s and 228 /24s
Percentage of available ARIN address space announced: 74.9
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 47428
Total RIPE prefixes after maximum aggregation: 30480
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43782
Unique aggregates announced from the RIPE address blocks: 28913
RIPE Region origin ASes present in the Internet Routing Table: 9909
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5266
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: 322688256
Equivalent to 19 /8s, 59 /16s and 213 /24s
Percentage of available RIPE address space announced: 80.1
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
40960-44031
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: 15548
Total LACNIC prefixes after maximum aggregation: 4280
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13588
Unique aggregates announced from the LACNIC address blocks: 7654
LACNIC Region origin ASes present in the Internet Routing Table: 826
LACNIC Prefixes per ASN: 16.45
LACNIC Region origin ASes announcing only one prefix: 268
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40647680
Equivalent to 2 /8s, 108 /16s and 60 /24s
Percentage of available LACNIC address space announced: 60.6
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: 2583
Total AfriNIC prefixes after maximum aggregation: 1029
AfriNIC Deaggregation factor: 2.51
Prefixes being announced from the AfriNIC address blocks: 2106
Unique aggregates announced from the AfriNIC address blocks: 1283
AfriNIC Region origin ASes present in the Internet Routing Table: 196
AfriNIC Prefixes per ASN: 10.74
AfriNIC Region origin ASes announcing only one prefix: 61
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6317056
Equivalent to 0 /8s, 96 /16s and 100 /24s
Percentage of available AfriNIC address space announced: 18.8
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 1362 10843 286 CHINANET-BACKBONE
4755 1278 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1114 80 376 Sify Limited
9498 971 533 70 BHARTI BT INTERNET LTD.
23577 793 34 688 Korea Telecom (ATM-MPLS)
4766 786 4929 314 Korea Telecom (KIX)
17488 721 63 54 Hathway IP Over Cable Interne
7545 689 149 111 TPG Internet Pty Ltd
18101 572 117 41 Reliance Infocom Ltd Internet
1221 545 1951 423 Telstra Pty Ltd
4812 522 913 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 472 122 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 411 218 270 SingTel Optus Pty Ltd
17974 370 130 13 PT TELEKOMUNIKASI INDONESIA
2907 363 1709 303 SINET Japan
4808 360 669 120 CNCGROUP IP network: China169
9829 359 258 12 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1459 6058 984 AT&T WorldNet Services
4323 1321 1021 374 Time Warner Telecom
2386 1213 632 756 AT&T Data Communications Serv
6478 1132 372 151 AT&T Worldnet Services
11492 1100 107 27 Cable One
6197 1026 717 508 BellSouth Network Solutions,
18566 1014 288 9 Covad Communications
174 963 6776 853 Cogent Communications
701 946 6563 722 UUNET Technologies, Inc.
7011 875 254 538 Citizens Utilities
1239 811 2741 582 Sprint
20115 801 735 429 Charter Communications
209 763 3875 597 Qwest
19262 759 2755 185 Verizon Global Networks
22773 740 1893 50 Cox Communications, Inc.
5668 617 169 21 CenturyTel Internet Holdings,
7029 613 488 79 Alltel Information Services,
855 575 254 73 Canadian Research Network
852 572 1093 363 Telus Advanced Communications
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 513 1075 136 Telenor Internet Access
702 500 1921 401 UUNET - Commercial IP service
24863 359 56 41 LINKdotNET AS number
9116 314 168 25 Goldenlines main autonomous s
3301 311 1456 291 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 281 129 257 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2045 256 DFN-IP service G-WiN
3215 255 2376 96 France Telecom Transpac
8708 250 420 239 Romania Data Systems S.A.
8220 249 444 241 COLT Telecommunications
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
3352 218 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
1257 194 1195 172 SWIPnet Swedish IP Network
3292 194 1379 174 TDC Tele Danmark
12479 190 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 856 1910 207 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 373 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 246 13 VTR PUNTO NET S.A.
7303 305 148 34 Telecom Argentina Stet-France
6471 303 74 33 ENTEL CHILE S.A.
14117 279 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 174 26 Telefonica Del Peru
10620 214 60 18 TVCABLE BOGOTA
6503 208 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 177 28 7 SatNet S.A.
8163 176 11 9 METROTEL REDES S.A.
7738 158 506 23 Telecomunicacoes da Bahia S.A
20299 156 23 12 NEWCOM AMERICAS
21826 156 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 867 221 The Internet Solution
8452 229 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 124 8 12 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 76 174 73 The Internetworking Company o
15475 76 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 51 16 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
33774 45 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 35 2 6 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 31 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1278 1207 Videsh Sanchar Nigam Ltd. Aut
4134 1362 1076 CHINANET-BACKBONE
11492 1100 1073 Cable One
18566 1014 1005 Covad Communications
6478 1132 981 AT&T Worldnet Services
4323 1321 947 Time Warner Telecom
9498 971 901 BHARTI BT INTERNET LTD.
9583 1114 738 Sify Limited
22773 740 690 Cox Communications, Inc.
17488 721 667 Hathway IP Over Cable Interne
8151 856 649 UniNet S.A. de C.V.
5668 617 596 CenturyTel Internet Holdings,
7545 689 578 TPG Internet Pty Ltd
19262 759 574 Verizon Global Networks
7029 613 534 Alltel Information Services,
18101 572 531 Reliance Infocom Ltd Internet
6517 561 524 Yipes Communications, Inc.
15270 557 519 PaeTec.net -a division of Pae
6197 1026 518 BellSouth Network Solutions,
19916 568 517 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65200 PRIVATE 205.157.80.0/24 1803 SPRINT
65200 PRIVATE 205.157.86.0/24 1803 SPRINT
65100 PRIVATE 205.157.87.0/24 1803 SPRINT
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
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 /11:36 /12:129
/13:254 /14:468 /15:901 /16:9552 /17:4015 /18:6500
/19:13740 /20:15996 /21:14469 /22:18839 /23:19776 /24:118832
/25:775 /26:1000 /27:484 /28:74 /29:8 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1122 1132 AT&T Worldnet Services
11492 1091 1100 Cable One
18566 996 1014 Covad Communications
9583 955 1114 Sify Limited
2386 904 1213 AT&T Data Communications Serv
7018 795 1459 AT&T WorldNet Services
23577 784 793 Korea Telecom (ATM-MPLS)
6197 780 1026 BellSouth Network Solutions,
7011 774 875 Citizens Utilities
4755 674 1278 Videsh Sanchar Nigam Ltd. Aut
9498 645 971 BHARTI BT INTERNET LTD.
4766 590 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 554 1321 Time Warner Telecom
17488 543 721 Hathway IP Over Cable Interne
6517 526 561 Yipes Communications, Inc.
15270 521 557 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 484 572 Reliance Infocom Ltd Internet
5668 483 617 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1808 15:19
16:3 17:3 18:11 20:37 24:938 25:1
32:50 33:3 38:333 40:60 41:210 44:2
47:4 52:4 55:3 56:3 57:25 58:475
59:381 60:331 61:982 62:876 63:1985 64:3132
65:2353 66:3309 67:744 68:629 69:1894 70:435
71:106 72:1352 73:2 74:569 75:269 76:74
77:284 78:20 80:827 81:814 82:669 83:380
84:499 85:862 86:340 87:457 88:289 89:921
90:7 91:417 97:6 98:4 116:237 117:61
121:234 122:576 123:131 124:875 125:943 128:289
129:223 130:140 131:362 132:54 133:9 134:195
135:38 136:186 137:80 138:156 139:72 140:496
141:173 142:373 143:235 144:296 145:45 146:324
147:119 148:401 149:144 150:113 151:160 152:90
153:126 154:2 155:256 156:153 157:213 158:158
159:162 160:104 161:93 162:219 163:180 164:461
165:403 166:294 167:290 168:509 169:120 170:413
171:23 172:1 189:64 190:749 192:5738 193:3916
194:3158 195:2235 196:965 198:3798 199:3277 200:4929
201:1098 202:7365 203:7568 204:3967 205:2016 206:2411
207:2837 208:2731 209:3506 210:2427 211:934 212:1306
213:1476 214:412 215:41 216:4014 217:1157 218:361
219:388 220:999 221:409 222:266
End of report
