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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 10 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/10/0400
Analysis Summary
----------------
BGP routing table entries examined: 225118
Prefixes after maximum aggregation: 118493
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109286
Total ASes present in the Internet Routing Table: 25639
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22333
Origin ASes announcing only one prefix: 10864
Transit ASes present in the Internet Routing Table: 3306
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 9
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: 1733337184
Equivalent to 103 /8s, 80 /16s and 160 /24s
Percentage of available address space announced: 46.8
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 118287
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52705
Total APNIC prefixes after maximum aggregation: 20543
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 49619
Unique aggregates announced from the APNIC address blocks: 21782
APNIC Region origin ASes present in the Internet Routing Table: 3005
APNIC Prefixes per ASN: 16.51
APNIC Region origin ASes announcing only one prefix: 805
APNIC Region transit ASes present in the Internet Routing Table: 456
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 301931424
Equivalent to 17 /8s, 255 /16s and 27 /24s
Percentage of available APNIC address space announced: 74.8
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: 107200
Total ARIN prefixes after maximum aggregation: 62249
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78807
Unique aggregates announced from the ARIN address blocks: 31128
ARIN Region origin ASes present in the Internet Routing Table: 11675
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4503
ARIN Region transit ASes present in the Internet Routing Table: 1066
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 338634560
Equivalent to 20 /8s, 47 /16s and 39 /24s
Percentage of available ARIN address space announced: 74.8
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: 47206
Total RIPE prefixes after maximum aggregation: 30418
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43611
Unique aggregates announced from the RIPE address blocks: 28803
RIPE Region origin ASes present in the Internet Routing Table: 9871
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5232
RIPE Region transit ASes present in the Internet Routing Table: 1570
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 321376320
Equivalent to 19 /8s, 39 /16s and 208 /24s
Percentage of available RIPE address space announced: 79.8
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
40960-44031
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: 15409
Total LACNIC prefixes after maximum aggregation: 4257
LACNIC Deaggregation factor: 3.62
Prefixes being announced from the LACNIC address blocks: 13479
Unique aggregates announced from the LACNIC address blocks: 7631
LACNIC Region origin ASes present in the Internet Routing Table: 821
LACNIC Prefixes per ASN: 16.42
LACNIC Region origin ASes announcing only one prefix: 265
LACNIC Region transit ASes present in the Internet Routing Table: 145
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40402432
Equivalent to 2 /8s, 104 /16s and 126 /24s
Percentage of available LACNIC address space announced: 60.2
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: 2591
Total AfriNIC prefixes after maximum aggregation: 1016
AfriNIC Deaggregation factor: 2.55
Prefixes being announced from the AfriNIC address blocks: 2069
Unique aggregates announced from the AfriNIC address blocks: 1257
AfriNIC Region origin ASes present in the Internet Routing Table: 195
AfriNIC Prefixes per ASN: 10.61
AfriNIC Region origin ASes announcing only one prefix: 59
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6277120
Equivalent to 0 /8s, 95 /16s and 200 /24s
Percentage of available AfriNIC address space announced: 18.7
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
4134 1349 10237 282 CHINANET-BACKBONE
4755 1265 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1112 80 375 Sify Limited
9498 1000 469 66 BHARTI BT INTERNET LTD.
23577 799 34 692 Korea Telecom (ATM-MPLS)
4766 781 4927 314 Korea Telecom (KIX)
17488 716 47 52 Hathway IP Over Cable Interne
7545 687 151 115 TPG Internet Pty Ltd
18101 562 117 37 Reliance Infocom Ltd Internet
1221 546 1950 426 Telstra Pty Ltd
4812 528 903 92 China Telecom (Shanghai)
4668 510 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 470 122 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 409 218 269 SingTel Optus Pty Ltd
17974 374 130 13 PT TELEKOMUNIKASI INDONESIA
2907 362 1701 302 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
4808 351 666 118 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1461 6073 987 AT&T WorldNet Services
4323 1318 1037 374 Time Warner Telecom
2386 1211 616 753 AT&T Data Communications Serv
6478 1133 370 151 AT&T Worldnet Services
11492 1095 107 24 Cable One
6197 1027 717 509 BellSouth Network Solutions,
18566 1012 288 9 Covad Communications
174 965 6778 864 Cogent Communications
701 945 6597 721 UUNET Technologies, Inc.
7011 851 252 537 Citizens Utilities
1239 810 2734 580 Sprint
20115 797 727 423 Charter Communications
19262 777 2724 200 Verizon Global Networks
209 745 3859 579 Qwest
22773 733 1892 46 Cox Communications, Inc.
5668 616 169 21 CenturyTel Internet Holdings,
7029 615 488 79 Alltel Information Services,
855 575 254 73 Canadian Research Network
852 573 1093 363 Telus Advanced Communications
6198 568 613 260 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 514 1075 136 Telenor Internet Access
702 503 1930 402 UUNET - Commercial IP service
24863 357 56 37 LINKdotNET AS number
3301 310 1455 290 TeliaNet Sweden
3320 310 6034 257 Deutsche Telekom AG
9116 309 168 25 Goldenlines main autonomous s
6746 279 129 255 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 263 2044 255 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 219 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
1257 195 1196 173 SWIPnet Swedish IP Network
3246 194 328 184 Song Networks
12479 190 578 6 Uni2 Autonomous System
3300 185 172 91 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 858 1918 208 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 313 238 12 VTR PUNTO NET S.A.
7303 300 145 32 Telecom Argentina Stet-France
6471 295 74 33 ENTEL CHILE S.A.
14117 279 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
6503 208 172 85 AVANTEL, S.A.
10620 207 59 14 TVCABLE BOGOTA
23216 195 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 176 28 7 SatNet S.A.
8163 173 11 7 METROTEL REDES S.A.
7738 156 506 23 Telecomunicacoes da Bahia S.A
21826 156 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
19169 153 10 31 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 867 221 The Internet Solution
8452 230 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
33783 124 8 12 EEPAD TISP TELECOM & INTERNET
5536 123 8 15 Internet Egypt Network
24835 86 48 6 RAYA Telecom - Egypt
2905 77 174 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 49 16 14 MAURITIUS TELECOM
5713 45 294 35 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 35 6 3 Jambonet Autonomous system
8524 32 2 8 AUCEGYPT Autonomous System
21280 28 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 1265 1193 Videsh Sanchar Nigam Ltd. Aut
11492 1095 1071 Cable One
4134 1349 1067 CHINANET-BACKBONE
18566 1012 1003 Covad Communications
6478 1133 982 AT&T Worldnet Services
4323 1318 944 Time Warner Telecom
9498 1000 934 BHARTI BT INTERNET LTD.
9583 1112 737 Sify Limited
22773 733 687 Cox Communications, Inc.
17488 716 664 Hathway IP Over Cable Interne
8151 858 650 UniNet S.A. de C.V.
5668 616 595 CenturyTel Internet Holdings,
19262 777 577 Verizon Global Networks
7545 687 572 TPG Internet Pty Ltd
7029 615 536 Alltel Information Services,
6517 562 525 Yipes Communications, Inc.
18101 562 525 Reliance Infocom Ltd Internet
6197 1027 518 BellSouth Network Solutions,
19916 568 517 OLM LLC
15270 555 517 PaeTec.net -a division of Pae
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
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
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
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 /12:127
/13:252 /14:465 /15:900 /16:9542 /17:4008 /18:6498
/19:13713 /20:15959 /21:14377 /22:18696 /23:19680 /24:118456
/25:787 /26:987 /27:478 /28:78 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1123 1133 AT&T Worldnet Services
11492 1086 1095 Cable One
18566 994 1012 Covad Communications
9583 953 1112 Sify Limited
2386 903 1211 AT&T Data Communications Serv
7018 792 1461 AT&T WorldNet Services
23577 790 799 Korea Telecom (ATM-MPLS)
6197 780 1027 BellSouth Network Solutions,
7011 750 851 Citizens Utilities
9498 670 1000 BHARTI BT INTERNET LTD.
4755 660 1265 Videsh Sanchar Nigam Ltd. Aut
4766 588 781 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 550 1318 Time Warner Telecom
17488 539 716 Hathway IP Over Cable Interne
6517 527 562 Yipes Communications, Inc.
15270 519 555 PaeTec.net -a division of Pae
4668 500 510 LG-EDS Systems Inc.
5668 480 616 CenturyTel Internet Holdings,
18101 478 562 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:85 9:1 12:1811 15:19
16:3 17:3 18:11 20:37 24:938 25:1
32:50 33:3 38:333 40:61 41:188 44:2
47:3 52:4 55:3 56:3 57:25 58:426
59:391 60:323 61:991 62:872 63:1958 64:3135
65:2342 66:3303 67:746 68:625 69:1896 70:432
71:106 72:1345 73:2 74:565 75:266 76:72
77:275 78:18 80:830 81:815 82:670 83:388
84:480 85:848 86:340 87:447 88:282 89:892
90:7 91:410 97:6 98:4 116:247 117:46
121:218 122:574 123:124 124:840 125:947 128:288
129:222 130:139 131:362 132:54 133:9 134:195
135:38 136:184 137:80 138:149 139:73 140:484
141:173 142:374 143:237 144:297 145:43 146:322
147:119 148:403 149:145 150:113 151:160 152:92
153:127 154:4 155:254 156:153 157:212 158:156
159:159 160:105 161:92 162:222 163:181 164:457
165:404 166:294 167:289 168:502 169:120 170:406
171:18 172:1 189:62 190:710 192:5751 193:3898
194:3164 195:2246 196:952 198:3806 199:3273 200:4929
201:1093 202:7361 203:7577 204:3955 205:2015 206:2404
207:2830 208:2714 209:3502 210:2440 211:965 212:1305
213:1474 214:411 215:41 216:4005 217:1156 218:360
219:386 220:987 221:411 222:265
End of report
