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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 30 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/30/0400
Analysis Summary
----------------
BGP routing table entries examined: 235997
Prefixes after maximum aggregation: 121946
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 114188
Total ASes present in the Internet Routing Table: 26575
Prefixes per ASN: 8.88
Origin-only ASes present in the Internet Routing Table: 23150
Origin ASes announcing only one prefix: 11280
Transit ASes present in the Internet Routing Table: 3425
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 27
Unregistered ASNs in the Routing Table: 6
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1783172736
Equivalent to 106 /8s, 73 /16s and 14 /24s
Percentage of available address space announced: 48.1
Percentage of allocated address space announced: 61.5
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 109503
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55108
Total APNIC prefixes after maximum aggregation: 20726
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 52029
Unique aggregates announced from the APNIC address blocks: 21993
APNIC Region origin ASes present in the Internet Routing Table: 3081
APNIC Prefixes per ASN: 16.89
APNIC Region origin ASes announcing only one prefix: 806
APNIC Region transit ASes present in the Internet Routing Table: 472
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 322950592
Equivalent to 19 /8s, 63 /16s and 213 /24s
Percentage of available APNIC address space announced: 73.9
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, 114/7, 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: 110918
Total ARIN prefixes after maximum aggregation: 63822
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81997
Unique aggregates announced from the ARIN address blocks: 32498
ARIN Region origin ASes present in the Internet Routing Table: 11917
ARIN Prefixes per ASN: 6.88
ARIN Region origin ASes announcing only one prefix: 4597
ARIN Region transit ASes present in the Internet Routing Table: 1095
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 349547904
Equivalent to 20 /8s, 213 /16s and 173 /24s
Percentage of available ARIN address space announced: 77.2
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: 49249
Total RIPE prefixes after maximum aggregation: 31744
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46231
Unique aggregates announced from the RIPE address blocks: 30478
RIPE Region origin ASes present in the Internet Routing Table: 10417
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5532
RIPE Region transit ASes present in the Internet Routing Table: 1635
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 334820992
Equivalent to 19 /8s, 244 /16s and 246 /24s
Percentage of available RIPE address space announced: 76.8
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 17441
Total LACNIC prefixes after maximum aggregation: 4564
LACNIC Deaggregation factor: 3.82
Prefixes being announced from the LACNIC address blocks: 15496
Unique aggregates announced from the LACNIC address blocks: 8780
LACNIC Region origin ASes present in the Internet Routing Table: 866
LACNIC Prefixes per ASN: 17.89
LACNIC Region origin ASes announcing only one prefix: 276
LACNIC Region transit ASes present in the Internet Routing Table: 148
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 44814848
Equivalent to 2 /8s, 171 /16s and 210 /24s
Percentage of available LACNIC address space announced: 44.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3245
Total AfriNIC prefixes after maximum aggregation: 1074
AfriNIC Deaggregation factor: 3.02
Prefixes being announced from the AfriNIC address blocks: 2331
Unique aggregates announced from the AfriNIC address blocks: 1399
AfriNIC Region origin ASes present in the Internet Routing Table: 213
AfriNIC Prefixes per ASN: 10.94
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 40
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7633152
Equivalent to 0 /8s, 116 /16s and 121 /24s
Percentage of available AfriNIC address space announced: 22.7
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
4755 1471 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1119 108 15 Sify Limited
4134 1098 11539 299 CHINANET-BACKBONE
9498 1005 550 66 BHARTI BT INTERNET LTD.
17488 872 56 70 Hathway IP Over Cable Interne
4766 815 5473 327 Korea Telecom (KIX)
23577 780 34 681 Korea Telecom (ATM-MPLS)
7545 718 159 120 TPG Internet Pty Ltd
18101 608 119 52 Reliance Infocom Ltd Internet
1221 545 1951 424 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 523 858 76 China Telecom (Shanghai)
4668 518 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 498 793 119 CNCGROUP IP network: China169
4802 487 133 141 Wantree Development
9443 441 121 72 Primus Telecommunications
7474 380 202 266 SingTel Optus Pty Ltd
17974 364 142 16 PT TELEKOMUNIKASI INDONESIA
4837 358 5065 169 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6146 1006 AT&T WorldNet Services
4323 1346 1009 357 Time Warner Telecom
2386 1243 629 754 AT&T Data Communications Serv
11492 1156 117 39 Cable One
6478 1115 328 197 AT&T Worldnet Services
6197 1030 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 993 6803 847 Cogent Communications
7011 967 289 558 Citizens Utilities
701 886 6557 693 UUNET Technologies, Inc.
20115 848 774 465 Charter Communications
22773 800 2133 54 Cox Communications, Inc.
1239 799 2729 557 Sprint
19262 792 2853 183 Verizon Global Networks
3356 764 10891 398 Level 3 Communications, LLC
209 730 3784 574 Qwest
5668 663 176 17 CenturyTel Internet Holdings,
3561 591 2325 377 Savvis
6517 589 163 34 Yipes Communications, Inc.
1785 585 395 247 AppliedTheory Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 471 1919 384 UUNET - Commercial IP service
9116 334 168 28 Goldenlines main autonomous s
3301 317 1441 294 TeliaNet Sweden
3320 316 6035 263 Deutsche Telekom AG
8551 310 298 41 Bezeq International
6746 274 129 251 Dynamic Network Technologies,
8708 271 421 243 Romania Data Systems S.A.
8866 269 62 25 Bulgarian Telecommunication C
680 268 2045 254 DFN-IP service G-WiN
3215 264 2504 99 France Telecom Transpac
8220 257 445 238 COLT Telecommunications
3352 233 1916 40 Ibernet, Internet Access Netw
3269 228 2935 75 TELECOM ITALIA
8452 219 188 7 TEDATA
9121 212 1442 25 TTnet Autonomous System
3300 199 172 95 AUCS Communications Services
12479 194 578 6 Uni2 Autonomous System
1257 193 1194 176 SWIPnet Swedish IP Network
3246 193 257 183 Song Networks
3292 193 1380 177 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1054 2196 215 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 380 32 7 SatNet S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 361 176 52 Telecom Argentina Stet-France
6471 348 75 37 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 265 73 27 TVCABLE BOGOTA
10481 261 104 9 Prima S.A.
6147 241 182 20 Telefonica Del Peru
11556 237 128 4 Cable-Wireless Panama
6503 214 187 84 AVANTEL, S.A.
23216 213 17 47 RAMtelecom Telecomunicaciones
7738 204 538 24 Telecomunicacoes da Bahia S.A
28573 200 314 27 NET Servicos de Comunicao S.A
8163 183 11 8 METROTEL REDES S.A.
21826 181 32 50 INTERCABLE
20299 180 25 30 NEWCOM AMERICAS
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 376 58 38 LINKdotNET AS number
3741 287 869 225 The Internet Solution
20858 195 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 127 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 77 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
20484 63 5 5 Yalla Online Autonomous Syste
15706 55 12 4 Sudatel Internet Exchange Aut
29571 53 11 7 Ci Telecom Autonomous system
33774 48 33 26 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
25543 37 3 4 ONATEL/FasoNet's Autonomous S
12455 36 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1471 1404 Videsh Sanchar Nigam Ltd. Aut
11492 1156 1117 Cable One
9583 1119 1104 Sify Limited
18566 1028 1019 Covad Communications
4323 1346 989 Time Warner Telecom
9498 1005 939 BHARTI BT INTERNET LTD.
6478 1115 918 AT&T Worldnet Services
8151 1054 839 UniNet S.A. de C.V.
17488 872 802 Hathway IP Over Cable Interne
4134 1098 799 CHINANET-BACKBONE
22773 800 746 Cox Communications, Inc.
5668 663 646 CenturyTel Internet Holdings,
19262 792 609 Verizon Global Networks
7545 718 598 TPG Internet Pty Ltd
18101 608 556 Reliance Infocom Ltd Internet
6517 589 555 Yipes Communications, Inc.
6197 1030 522 BellSouth Network Solutions,
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
4668 518 508 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
65000 PRIVATE 216.136.11.0/24 27182 Peregrine Capital Ma
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
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 /10:16 /11:38 /12:136
/13:269 /14:480 /15:947 /16:9700 /17:4158 /18:6679
/19:14432 /20:16660 /21:15477 /22:19804 /23:20770 /24:123952
/25:776 /26:1020 /27:544 /28:99 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1148 1156 Cable One
6478 1114 1115 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 954 1119 Sify Limited
2386 933 1243 AT&T Data Communications Serv
7011 854 967 Citizens Utilities
4755 843 1471 Videsh Sanchar Nigam Ltd. Aut
7018 826 1501 AT&T WorldNet Services
6197 774 1030 BellSouth Network Solutions,
23577 771 780 Korea Telecom (ATM-MPLS)
9498 692 1005 BHARTI BT INTERNET LTD.
17488 687 872 Hathway IP Over Cable Interne
4766 606 815 Korea Telecom (KIX)
4323 568 1346 Time Warner Telecom
19916 564 569 OLM LLC
6517 544 589 Yipes Communications, Inc.
5668 521 663 CenturyTel Internet Holdings,
18101 509 608 Reliance Infocom Ltd Internet
4668 508 518 LG-EDS Systems Inc.
855 443 543 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:87 12:1797 15:19 16:3 17:5
18:13 20:36 24:987 25:1 32:57 33:3
38:359 40:64 41:347 44:2 47:8 52:3
55:3 56:3 57:21 58:473 59:415 60:380
61:983 62:920 63:1980 64:3285 65:2371 66:3572
67:848 68:674 69:2002 70:467 71:108 72:1410
73:6 74:734 75:263 76:154 77:415 78:252
79:1 80:854 81:789 82:577 83:354 84:631
85:828 86:349 87:579 88:286 89:1045 90:39
91:689 92:4 96:1 97:6 98:9 116:414
117:204 118:40 121:325 122:631 123:206 124:703
125:1034 128:277 129:195 130:138 131:366 132:55
133:9 134:193 135:34 136:188 137:82 138:156
139:76 140:507 141:145 142:371 143:254 144:316
145:46 146:327 147:130 148:486 149:187 150:112
151:137 152:92 153:121 154:11 155:266 156:162
157:224 158:159 159:195 160:142 161:99 162:189
163:183 164:500 165:399 166:290 167:308 168:496
169:126 170:407 171:22 172:3 189:102 190:1215
192:5709 193:3996 194:3209 195:2459 196:946 198:3795
199:3226 200:5230 201:1224 202:7428 203:7816 204:3977
205:2017 206:2418 207:2790 208:2916 209:3588 210:2482
211:1077 212:1344 213:1517 214:417 215:44 216:4100
217:1192 218:319 219:394 220:1015 221:409 222:264
End of report
