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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 20 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 238096
Prefixes after maximum aggregation: 122747
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 116478
Total ASes present in the Internet Routing Table: 26688
Prefixes per ASN: 8.92
Origin-only ASes present in the Internet Routing Table: 23236
Origin ASes announcing only one prefix: 11299
Transit ASes present in the Internet Routing Table: 3452
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 28
Max AS path prepend of ASN (35389) 25
Prefixes from unregistered ASNs in the Routing Table: 12
Unregistered ASNs in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1793106560
Equivalent to 106 /8s, 224 /16s and 162 /24s
Percentage of available address space announced: 48.4
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110867
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55578
Total APNIC prefixes after maximum aggregation: 21213
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52469
Unique aggregates announced from the APNIC address blocks: 23253
APNIC Region origin ASes present in the Internet Routing Table: 3089
APNIC Prefixes per ASN: 16.99
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 473
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 325413568
Equivalent to 19 /8s, 101 /16s and 106 /24s
Percentage of available APNIC address space announced: 74.4
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: 111730
Total ARIN prefixes after maximum aggregation: 63842
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82524
Unique aggregates announced from the ARIN address blocks: 32796
ARIN Region origin ASes present in the Internet Routing Table: 11940
ARIN Prefixes per ASN: 6.91
ARIN Region origin ASes announcing only one prefix: 4585
ARIN Region transit ASes present in the Internet Routing Table: 1121
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 352437376
Equivalent to 21 /8s, 1 /16s and 196 /24s
Percentage of available ARIN address space announced: 77.8
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, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 49748
Total RIPE prefixes after maximum aggregation: 32025
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46597
Unique aggregates announced from the RIPE address blocks: 31113
RIPE Region origin ASes present in the Internet Routing Table: 10489
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5557
RIPE Region transit ASes present in the Internet Routing Table: 1638
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 336972416
Equivalent to 20 /8s, 21 /16s and 202 /24s
Percentage of available RIPE address space announced: 77.3
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
40960-45055
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: 17772
Total LACNIC prefixes after maximum aggregation: 4569
LACNIC Deaggregation factor: 3.89
Prefixes being announced from the LACNIC address blocks: 15806
Unique aggregates announced from the LACNIC address blocks: 8807
LACNIC Region origin ASes present in the Internet Routing Table: 877
LACNIC Prefixes per ASN: 18.02
LACNIC Region origin ASes announcing only one prefix: 282
LACNIC Region transit ASes present in the Internet Routing Table: 153
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 46045696
Equivalent to 2 /8s, 190 /16s and 154 /24s
Percentage of available LACNIC address space announced: 45.7
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: 3248
Total AfriNIC prefixes after maximum aggregation: 1084
AfriNIC Deaggregation factor: 3.00
Prefixes being announced from the AfriNIC address blocks: 2402
Unique aggregates announced from the AfriNIC address blocks: 1410
AfriNIC Region origin ASes present in the Internet Routing Table: 214
AfriNIC Prefixes per ASN: 11.22
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8181760
Equivalent to 0 /8s, 124 /16s and 216 /24s
Percentage of available AfriNIC address space announced: 24.4
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
4755 1467 383 69 Videsh Sanchar Nigam Ltd. Aut
4134 1099 11556 303 CHINANET-BACKBONE
9583 1091 81 421 Sify Limited
9498 1052 549 64 BHARTI BT INTERNET LTD.
17488 879 57 70 Hathway IP Over Cable Interne
4766 816 5474 329 Korea Telecom (KIX)
23577 796 33 681 Korea Telecom (ATM-MPLS)
7545 722 159 123 TPG Internet Pty Ltd
18101 611 120 56 Reliance Infocom Ltd Internet
1221 544 1951 424 Telstra Pty Ltd
9829 531 1312 9 BSNL National Internet Backbo
4812 525 874 78 China Telecom (Shanghai)
4668 520 68 10 LG-EDS Systems Inc.
4808 504 799 122 CNCGROUP IP network: China169
17676 503 10919 64 Softbank BB Corp.
4802 482 130 142 Wantree Development
9443 440 121 70 Primus Telecommunications
7474 383 202 269 SingTel Optus Pty Ltd
17974 371 146 14 PT TELEKOMUNIKASI INDONESIA
4837 356 5050 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6140 1014 AT&T WorldNet Services
4323 1378 1016 364 Time Warner Telecom
2386 1273 633 783 AT&T Data Communications Serv
11492 1173 122 42 Cable One
6478 1124 329 179 AT&T Worldnet Services
18566 1032 288 9 Covad Communications
6197 1030 719 509 BellSouth Network Solutions,
7011 982 291 570 Citizens Utilities
174 976 6857 837 Cogent Communications
701 901 6565 704 UUNET Technologies, Inc.
20115 846 775 453 Charter Communications
3356 833 10887 415 Level 3 Communications, LLC
22773 819 2133 54 Cox Communications, Inc.
19262 811 2926 183 Verizon Global Networks
1239 799 2711 556 Sprint
209 736 3786 579 Qwest
5668 664 176 17 CenturyTel Internet Holdings,
15270 603 161 41 PaeTec.net -a division of Pae
3561 591 2324 372 Savvis
6517 585 163 33 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 469 1917 382 UUNET - Commercial IP service
9116 348 184 28 Goldenlines main autonomous s
8551 326 314 40 Bezeq International
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8866 281 78 26 Bulgarian Telecommunication C
8708 275 421 245 Romania Data Systems S.A.
6746 273 129 251 Dynamic Network Technologies,
680 268 2045 254 DFN-IP service G-WiN
3215 264 2519 91 France Telecom Transpac
8220 257 445 235 COLT Telecommunications
3352 235 1932 41 Ibernet, Internet Access Netw
8452 233 188 7 TEDATA
3269 230 2967 72 TELECOM ITALIA
3292 222 1386 203 TDC Tele Danmark
3300 211 220 101 AUCS Communications Services
9121 210 1442 25 TTnet Autonomous System
12479 195 578 6 Uni2 Autonomous System
1257 193 1194 176 SWIPnet Swedish IP Network
2856 187 2302 156 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1161 2419 216 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 381 33 8 SatNet S.A.
7303 380 185 59 Telecom Argentina Stet-France
11172 375 114 60 Servicios Alestra S.A de C.V
6471 357 85 38 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 261 72 42 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 236 128 4 Cable-Wireless Panama
23216 220 17 47 RAMtelecom Telecomunicaciones
6503 217 187 86 AVANTEL, S.A.
28573 213 314 27 NET Servicos de Comunicao S.A
7738 206 538 24 Telecomunicacoes da Bahia S.A
20299 199 33 30 NEWCOM AMERICAS
21826 186 33 47 INTERCABLE
19169 183 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 389 60 37 LINKdotNET AS number
3741 281 869 226 The Internet Solution
20858 199 34 4 EgyNet
2018 143 300 117 Tertiary Education Network
6713 143 135 11 Itissalat Al-MAGHRIB
5536 124 8 10 Internet Egypt Network
33783 117 8 20 EEPAD TISP TELECOM & INTERNET
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 81 84 4 Nile Online
23889 77 24 15 MAURITIUS TELECOM
2905 76 176 73 The Internetworking Company o
20484 64 5 6 Yalla Online Autonomous Syste
15706 58 12 4 Sudatel Internet Exchange Aut
29571 55 11 7 Ci Telecom Autonomous system
33774 49 35 27 AS Number for Telecom Algeria
5713 46 422 36 Telkom SA Ltd
16637 41 21 29 Johnnic e-Ventures
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1467 1398 Videsh Sanchar Nigam Ltd. Aut
11492 1173 1131 Cable One
18566 1032 1023 Covad Communications
4323 1378 1014 Time Warner Telecom
9498 1052 988 BHARTI BT INTERNET LTD.
8151 1161 945 UniNet S.A. de C.V.
6478 1124 945 AT&T Worldnet Services
17488 879 809 Hathway IP Over Cable Interne
4134 1099 796 CHINANET-BACKBONE
22773 819 765 Cox Communications, Inc.
9583 1091 670 Sify Limited
5668 664 647 CenturyTel Internet Holdings,
19262 811 628 Verizon Global Networks
7545 722 599 TPG Internet Pty Ltd
15270 603 562 PaeTec.net -a division of Pae
18101 611 555 Reliance Infocom Ltd Internet
6517 585 552 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
9829 531 522 BSNL National Internet Backbo
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 41.204.180.0/24 36866 Jamii Telecommunicat
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
65068 PRIVATE 79.171.184.0/21 43895 *
64512 PRIVATE 125.162.178.0/23 17974 PT TELEKOMUNIKASI IN
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.31.31.0/24 9730 The Best ISP to go Multimedia
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
173.173.173.0/24 9730 The Best ISP to go Multimedia
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 /11:39 /12:134
/13:270 /14:483 /15:947 /16:9735 /17:4200 /18:6776
/19:14707 /20:16850 /21:15756 /22:19937 /23:20914 /24:124802
/25:815 /26:1024 /27:552 /28:99 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1164 1173 Cable One
6478 1123 1124 AT&T Worldnet Services
18566 1014 1032 Covad Communications
2386 964 1273 AT&T Data Communications Serv
9583 935 1091 Sify Limited
7011 869 982 Citizens Utilities
4755 839 1467 Videsh Sanchar Nigam Ltd. Aut
7018 825 1501 AT&T WorldNet Services
23577 787 796 Korea Telecom (ATM-MPLS)
6197 773 1030 BellSouth Network Solutions,
9498 736 1052 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
4766 606 816 Korea Telecom (KIX)
4323 582 1378 Time Warner Telecom
15270 565 603 PaeTec.net -a division of Pae
19916 564 569 OLM LLC
6517 541 585 Yipes Communications, Inc.
5668 522 664 CenturyTel Internet Holdings,
4668 510 520 LG-EDS Systems Inc.
18101 507 611 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1843 13:1 15:20 16:3
17:6 18:13 20:35 24:1007 25:1 31:1
32:63 33:3 38:362 40:64 41:394 44:2
47:8 52:3 55:3 56:3 57:21 58:476
59:415 60:384 61:992 62:937 63:1981 64:3297
65:2368 66:3584 67:895 68:648 69:2030 70:465
71:105 72:1439 73:7 74:736 75:263 76:140
77:432 78:300 79:17 80:875 81:773 82:570
83:351 84:617 85:875 86:359 87:595 88:284
89:1032 90:39 91:748 92:5 96:2 97:6
98:13 114:1 115:1 116:428 117:224 118:46
121:335 122:649 123:203 124:723 125:1048 128:308
129:195 130:137 131:371 132:60 133:9 134:193
135:34 136:191 137:82 138:153 139:75 140:519
141:146 142:373 143:259 144:327 145:48 146:330
147:125 148:485 149:185 150:113 151:137 152:95
153:122 154:11 155:263 156:164 157:225 158:160
159:197 160:178 161:102 162:190 163:184 164:499
165:404 166:290 167:309 168:516 169:130 170:418
171:29 172:3 173:1 189:114 190:1232 192:5727
193:4038 194:3194 195:2329 196:932 198:3802 199:3227
200:5257 201:1275 202:7449 203:7853 204:3986 205:2019
206:2405 207:2780 208:2964 209:3585 210:2495 211:1106
212:1301 213:1539 214:418 215:44 216:4103 217:1186
218:336 219:400 220:1017 221:409 222:268
End of report
