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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 27 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/27/0400
Analysis Summary
----------------
BGP routing table entries examined: 226435
Prefixes after maximum aggregation: 119037
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 110057
Total ASes present in the Internet Routing Table: 25783
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22482
Origin ASes announcing only one prefix: 10971
Transit ASes present in the Internet Routing Table: 3301
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 41
Unregistered ASNs in the Routing Table: 39
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: 13
Number of addresses announced to Internet: 1741454944
Equivalent to 103 /8s, 204 /16s and 126 /24s
Percentage of available address space announced: 47.0
Percentage of allocated address space announced: 62.3
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 119211
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53104
Total APNIC prefixes after maximum aggregation: 20667
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50044
Unique aggregates announced from the APNIC address blocks: 21942
APNIC Region origin ASes present in the Internet Routing Table: 3016
APNIC Prefixes per ASN: 16.59
APNIC Region origin ASes announcing only one prefix: 812
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: 16
Number of APNIC addresses announced to Internet: 305557664
Equivalent to 18 /8s, 54 /16s and 112 /24s
Percentage of available APNIC address space announced: 75.7
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: 107500
Total ARIN prefixes after maximum aggregation: 62453
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79120
Unique aggregates announced from the ARIN address blocks: 31402
ARIN Region origin ASes present in the Internet Routing Table: 11707
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4526
ARIN Region transit ASes present in the Internet Routing Table: 1064
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 341023744
Equivalent to 20 /8s, 83 /16s and 156 /24s
Percentage of available ARIN address space announced: 75.3
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: 47605
Total RIPE prefixes after maximum aggregation: 30572
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43935
Unique aggregates announced from the RIPE address blocks: 28963
RIPE Region origin ASes present in the Internet Routing Table: 9954
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5300
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: 20
Number of RIPE addresses announced to Internet: 322871424
Equivalent to 19 /8s, 62 /16s and 160 /24s
Percentage of available RIPE address space announced: 80.2
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: 15641
Total LACNIC prefixes after maximum aggregation: 4304
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13681
Unique aggregates announced from the LACNIC address blocks: 7743
LACNIC Region origin ASes present in the Internet Routing Table: 833
LACNIC Prefixes per ASN: 16.42
LACNIC Region origin ASes announcing only one prefix: 273
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40923392
Equivalent to 2 /8s, 112 /16s and 113 /24s
Percentage of available LACNIC address space announced: 61.0
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: 2574
Total AfriNIC prefixes after maximum aggregation: 1031
AfriNIC Deaggregation factor: 2.50
Prefixes being announced from the AfriNIC address blocks: 2126
Unique aggregates announced from the AfriNIC address blocks: 1281
AfriNIC Region origin ASes present in the Internet Routing Table: 197
AfriNIC Prefixes per ASN: 10.79
AfriNIC Region origin ASes announcing only one prefix: 60
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6365696
Equivalent to 0 /8s, 97 /16s and 34 /24s
Percentage of available AfriNIC address space announced: 19.0
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 1361 10954 288 CHINANET-BACKBONE
4755 1297 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1122 80 400 Sify Limited
9498 996 533 70 BHARTI BT INTERNET LTD.
4766 793 4930 316 Korea Telecom (KIX)
23577 787 34 684 Korea Telecom (ATM-MPLS)
17488 734 48 58 Hathway IP Over Cable Interne
7545 699 150 113 TPG Internet Pty Ltd
18101 576 117 41 Reliance Infocom Ltd Internet
1221 545 1951 423 Telstra Pty Ltd
4812 528 913 95 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 471 122 77 Primus Telecommunications
7474 416 218 269 SingTel Optus Pty Ltd
4802 411 105 151 Wantree Development
9829 362 258 14 BSNL National Internet Backbo
17974 362 130 13 PT TELEKOMUNIKASI INDONESIA
4808 360 667 119 CNCGROUP IP network: China169
4837 352 4944 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6075 996 AT&T WorldNet Services
4323 1321 1021 374 Time Warner Telecom
2386 1209 633 754 AT&T Data Communications Serv
6478 1119 319 145 AT&T Worldnet Services
11492 1107 108 20 Cable One
6197 1025 717 508 BellSouth Network Solutions,
18566 1016 288 9 Covad Communications
174 966 6778 853 Cogent Communications
701 943 6562 719 UUNET Technologies, Inc.
7011 901 258 545 Citizens Utilities
1239 811 2741 583 Sprint
20115 803 737 431 Charter Communications
19262 765 2760 190 Verizon Global Networks
209 750 3878 594 Qwest
22773 745 2148 49 Cox Communications, Inc.
5668 618 169 21 CenturyTel Internet Holdings,
855 575 254 73 Canadian Research Network
852 572 1093 363 Telus Advanced Communications
6517 568 159 37 Yipes Communications, Inc.
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 361 56 41 LINKdotNET AS number
9116 321 168 25 Goldenlines main autonomous s
3301 312 1456 292 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 284 129 260 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 264 2044 255 DFN-IP service G-WiN
8220 259 445 242 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 250 419 239 Romania Data Systems S.A.
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
8551 215 212 27 Bezeq International
9121 210 1441 24 TTnet Autonomous System
3292 194 1379 174 TDC Tele Danmark
1257 193 1195 171 SWIPnet Swedish IP Network
12479 191 578 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 893 1958 209 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 374 116 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 312 149 37 Telecom Argentina Stet-France
6471 311 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 213 60 18 TVCABLE BOGOTA
6503 207 172 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 157 23 13 NEWCOM AMERICAS
21826 157 27 60 INTERCABLE
19169 156 10 22 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 281 867 222 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
33783 125 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
2905 75 174 72 The Internetworking Company o
15475 75 84 4 Nile Online
24835 66 48 6 RAYA Telecom - Egypt
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 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 32 6 3 Jambonet Autonomous system
21280 29 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 1297 1226 Videsh Sanchar Nigam Ltd. Aut
11492 1107 1087 Cable One
4134 1361 1073 CHINANET-BACKBONE
18566 1016 1007 Covad Communications
6478 1119 974 AT&T Worldnet Services
4323 1321 947 Time Warner Telecom
9498 996 926 BHARTI BT INTERNET LTD.
9583 1122 722 Sify Limited
22773 745 696 Cox Communications, Inc.
8151 893 684 UniNet S.A. de C.V.
17488 734 676 Hathway IP Over Cable Interne
5668 618 597 CenturyTel Internet Holdings,
7545 699 586 TPG Internet Pty Ltd
19262 765 575 Verizon Global Networks
18101 576 535 Reliance Infocom Ltd Internet
6517 568 531 Yipes Communications, Inc.
15270 561 524 PaeTec.net -a division of Pae
6197 1025 517 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 575 502 Canadian Research Network
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65000 PRIVATE 41.204.180.0/24 36866 Jamii Telecommunicat
43346 UNALLOCATED 77.87.168.0/21 28906 CJSC "TransTelecom-N
43087 UNALLOCATED 77.95.88.0/21 12389 JSC Rostelecom
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
42864 UNALLOCATED 77.242.144.0/20 8928 Interoute Telecommun
43082 UNALLOCATED 77.246.160.0/20 174 Cogent Communication
43345 UNALLOCATED 78.40.40.0/24 702 UUNET - Commercial I
43328 UNALLOCATED 78.40.112.0/21 21448 Crosswired Mancheste
43391 UNALLOCATED 78.40.224.0/21 9121 TTnet Autonomous Sys
43314 UNALLOCATED 78.109.128.0/20 21127 JSC Zap-Sib TransTel
39389 UNALLOCATED 80.67.165.0/24 20766 The main Autonomous
43157 UNALLOCATED 83.143.224.0/21 174 Cogent Communication
43378 UNALLOCATED 89.45.176.0/20 5606 KPNQwest Romania AS
43286 UNALLOCATED 91.149.120.0/22 3216 Teleross, Moscow, Ru
42976 UNALLOCATED 91.194.4.0/24 8551 Bezeq International
39389 UNALLOCATED 91.194.60.0/23 20766 The main Autonomous
43103 UNALLOCATED 91.194.72.0/23 21219 Datacom Autonomous S
43290 UNALLOCATED 91.194.198.0/23 20751 max4eu.net InterNet-
43376 UNALLOCATED 91.194.234.0/23 2914 Verio, Inc.
43067 UNALLOCATED 91.196.80.0/22 31305 Kriviy Rih City netw
43103 UNALLOCATED 91.196.92.0/22 21219 Datacom Autonomous S
43319 UNALLOCATED 91.197.8.0/22 12452 VSTN AS
43348 UNALLOCATED 91.197.24.0/22 29632 The NetAssist autono
43359 UNALLOCATED 91.197.36.0/22 25441 Irish Broadband Inte
43164 UNALLOCATED 91.198.0.0/24 16016 VOLJATEL Autonomous
43194 UNALLOCATED 91.198.5.0/24 5486 Euronet Digital Comm
43212 UNALLOCATED 91.198.19.0/24 21294 SC Idilis S.A.
64250 RESERVED 122.171.0.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.171.1.0/24 9498 BHARTI BT INTERNET L
43028 UNALLOCATED 193.200.201.0/24 21016 LVRTC Autonomous Sys
43034 UNALLOCATED 193.200.207.0/24 9119 Softnet
43360 UNALLOCATED 193.228.153.0/24 6663 InterComp Bucharest
35396 UNALLOCATED 193.247.0.0/19 6830 UPC Distribution Ser
43122 UNALLOCATED 194.110.128.0/24 8220 COLT Telecommunicati
42752 UNALLOCATED 194.110.150.0/24 9121 TTnet Autonomous Sys
42795 UNALLOCATED 194.110.245.0/24 3215 France Telecom Trans
39094 UNALLOCATED 195.66.64.0/24 12578 LATTELEKOM-APOLLO
65001 PRIVATE 195.250.120.0/23 8534 InfoSky - Informatik
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
64516 PRIVATE 209.43.37.0/24 7332 IQuest Internet
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
95.192.0.0/16 12654 RIPE NCC RIS Project
95.255.248.0/21 12654 RIPE NCC RIS Project
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 /12:130
/13:255 /14:468 /15:901 /16:9565 /17:4025 /18:6518
/19:13792 /20:16061 /21:14544 /22:18897 /23:19854 /24:119031
/25:746 /26:1004 /27:483 /28:70 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1118 1119 AT&T Worldnet Services
11492 1098 1107 Cable One
18566 998 1016 Covad Communications
9583 964 1122 Sify Limited
2386 902 1209 AT&T Data Communications Serv
7018 803 1470 AT&T WorldNet Services
7011 799 901 Citizens Utilities
6197 779 1025 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 692 1297 Videsh Sanchar Nigam Ltd. Aut
9498 666 996 BHARTI BT INTERNET LTD.
4766 593 793 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 557 734 Hathway IP Over Cable Interne
4323 554 1321 Time Warner Telecom
6517 533 568 Yipes Communications, Inc.
15270 526 561 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
18101 488 576 Reliance Infocom Ltd Internet
5668 484 618 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1807 15:19
16:3 17:3 18:12 20:37 24:926 25:1
32:50 33:3 38:336 40:60 41:220 44:2
47:4 52:4 55:3 56:3 57:25 58:466
59:380 60:339 61:989 62:884 63:1984 64:3132
65:2365 66:3311 67:745 68:624 69:1917 70:439
71:100 72:1366 73:2 74:576 75:253 76:80
77:285 78:23 80:822 81:821 82:661 83:373
84:537 85:854 86:343 87:463 88:290 89:940
90:12 91:435 97:6 98:3 116:251 117:82
121:244 122:587 123:132 124:883 125:957 128:288
129:204 130:139 131:362 132:54 133:9 134:192
135:38 136:179 137:81 138:156 139:72 140:492
141:172 142:373 143:248 144:292 145:45 146:325
147:119 148:399 149:141 150:113 151:161 152:90
153:124 154:2 155:257 156:157 157:213 158:158
159:172 160:104 161:94 162:209 163:181 164:465
165:396 166:286 167:290 168:508 169:120 170:410
171:23 172:1 189:62 190:758 192:5742 193:3926
194:3170 195:2234 196:959 198:3800 199:3279 200:4951
201:1110 202:7401 203:7554 204:3955 205:2016 206:2417
207:2818 208:2729 209:3488 210:2421 211:969 212:1295
213:1485 214:419 215:40 216:3969 217:1160 218:358
219:388 220:1003 221:408 222:265
End of report
