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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 28 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/28/0400
Analysis Summary
----------------
BGP routing table entries examined: 224298
Prefixes after maximum aggregation: 118263
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 108974
Total ASes present in the Internet Routing Table: 25531
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22241
Origin ASes announcing only one prefix: 10793
Transit ASes present in the Internet Routing Table: 3290
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1727257472
Equivalent to 102 /8s, 243 /16s and 219 /24s
Percentage of available address space announced: 46.6
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 117729
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52493
Total APNIC prefixes after maximum aggregation: 20485
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 49399
Unique aggregates announced from the APNIC address blocks: 21671
APNIC Region origin ASes present in the Internet Routing Table: 2989
APNIC Prefixes per ASN: 16.53
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 452
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 300783264
Equivalent to 17 /8s, 237 /16s and 150 /24s
Percentage of available APNIC address space announced: 74.5
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: 107051
Total ARIN prefixes after maximum aggregation: 62209
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78676
Unique aggregates announced from the ARIN address blocks: 31083
ARIN Region origin ASes present in the Internet Routing Table: 11656
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4482
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: 16
Number of ARIN addresses announced to Internet: 337243968
Equivalent to 20 /8s, 25 /16s and 239 /24s
Percentage of available ARIN address space announced: 74.4
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: 46908
Total RIPE prefixes after maximum aggregation: 30302
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43315
Unique aggregates announced from the RIPE address blocks: 28744
RIPE Region origin ASes present in the Internet Routing Table: 9808
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5189
RIPE Region transit ASes present in the Internet Routing Table: 1561
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 318610784
Equivalent to 18 /8s, 253 /16s and 157 /24s
Percentage of available RIPE address space announced: 79.1
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: 15278
Total LACNIC prefixes after maximum aggregation: 4249
LACNIC Deaggregation factor: 3.60
Prefixes being announced from the LACNIC address blocks: 13320
Unique aggregates announced from the LACNIC address blocks: 7520
LACNIC Region origin ASes present in the Internet Routing Table: 813
LACNIC Prefixes per ASN: 16.38
LACNIC Region origin ASes announcing only one prefix: 258
LACNIC Region transit ASes present in the Internet Routing Table: 143
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 39866368
Equivalent to 2 /8s, 96 /16s and 80 /24s
Percentage of available LACNIC address space announced: 59.4
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: 2562
Total AfriNIC prefixes after maximum aggregation: 1010
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 2039
Unique aggregates announced from the AfriNIC address blocks: 1225
AfriNIC Region origin ASes present in the Internet Routing Table: 192
AfriNIC Prefixes per ASN: 10.62
AfriNIC Region origin ASes announcing only one prefix: 57
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6187008
Equivalent to 0 /8s, 94 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 18.4
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
4134 1343 10021 281 CHINANET-BACKBONE
4755 1241 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1106 79 394 Sify Limited
9498 979 469 66 BHARTI BT INTERNET LTD.
4766 789 4943 312 Korea Telecom (KIX)
23577 777 35 705 Korea Telecom (ATM-MPLS)
17488 707 46 43 Hathway IP Over Cable Interne
7545 685 151 108 TPG Internet Pty Ltd
18101 563 117 35 Reliance Infocom Ltd Internet
1221 550 1954 425 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
4812 508 884 88 China Telecom (Shanghai)
17676 504 10935 65 Softbank BB Corp.
9443 467 121 77 Primus Telecommunications
7474 413 218 270 SingTel Optus Pty Ltd
4802 411 105 151 Wantree Development
17974 370 129 12 PT TELEKOMUNIKASI INDONESIA
2907 362 1700 301 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
4837 349 4940 163 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6101 982 AT&T WorldNet Services
4323 1313 1042 368 Time Warner Telecom
2386 1202 615 751 AT&T Data Communications Serv
6478 1122 367 151 AT&T Worldnet Services
11492 1094 107 23 Cable One
6197 1026 717 510 BellSouth Network Solutions,
18566 1011 288 9 Covad Communications
174 957 6778 869 Cogent Communications
701 954 6597 725 UUNET Technologies, Inc.
7011 846 250 536 Citizens Utilities
1239 809 2734 579 Sprint
20115 799 730 425 Charter Communications
19262 778 2722 202 Verizon Global Networks
209 753 3855 581 Qwest
22773 728 1892 44 Cox Communications, Inc.
5668 615 169 21 CenturyTel Internet Holdings,
7029 593 488 80 Alltel Information Services,
852 581 1089 365 Telus Advanced Communications
855 575 254 73 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 514 1075 136 Telenor Internet Access
702 513 1938 404 UUNET - Commercial IP service
24863 351 56 37 LINKdotNET AS number
3301 310 1455 290 TeliaNet Sweden
3320 306 6034 257 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
680 264 2044 255 DFN-IP service G-WiN
3215 254 2376 96 France Telecom Transpac
8220 249 444 241 COLT Telecommunications
8708 244 419 234 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
5089 221 1658 53 NTL Group Limited
3352 216 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
9116 200 136 25 Goldenlines main autonomous s
1257 196 1196 174 SWIPnet Swedish IP Network
3246 195 329 185 Song Networks
12479 191 578 6 Uni2 Autonomous System
3292 183 1304 163 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 851 1917 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 370 116 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 295 144 31 Telecom Argentina Stet-France
14117 277 19 15 Telefonica del Sur S.A.
6471 275 74 33 ENTEL CHILE S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
6503 212 188 84 AVANTEL, S.A.
10620 207 59 14 TVCABLE BOGOTA
23216 194 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 173 27 8 SatNet S.A.
21826 157 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
19169 153 10 31 Telconet
20299 151 23 12 NEWCOM AMERICAS
7738 146 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 280 867 221 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 123 8 15 Internet Egypt Network
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
15475 75 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
8524 32 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet 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 1241 1169 Videsh Sanchar Nigam Ltd. Aut
11492 1094 1071 Cable One
4134 1343 1062 CHINANET-BACKBONE
18566 1011 1002 Covad Communications
6478 1122 971 AT&T Worldnet Services
4323 1313 945 Time Warner Telecom
9498 979 913 BHARTI BT INTERNET LTD.
9583 1106 712 Sify Limited
22773 728 684 Cox Communications, Inc.
17488 707 664 Hathway IP Over Cable Interne
8151 851 643 UniNet S.A. de C.V.
5668 615 594 CenturyTel Internet Holdings,
7545 685 577 TPG Internet Pty Ltd
19262 778 576 Verizon Global Networks
18101 563 528 Reliance Infocom Ltd Internet
6517 559 525 Yipes Communications, Inc.
19916 568 517 OLM LLC
6197 1026 516 BellSouth Network Solutions,
15270 550 515 PaeTec.net -a division of Pae
7029 593 513 Alltel Information Services,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
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
94.110.196.0/24 21161 Bechtle Autonomous System
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 /11:35 /12:126
/13:251 /14:462 /15:902 /16:9507 /17:4022 /18:6496
/19:13668 /20:15822 /21:14273 /22:18551 /23:19609 /24:118169
/25:792 /26:985 /27:477 /28:72 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1112 1122 AT&T Worldnet Services
11492 1085 1094 Cable One
18566 993 1011 Covad Communications
9583 948 1106 Sify Limited
2386 903 1202 AT&T Data Communications Serv
7018 794 1474 AT&T WorldNet Services
6197 777 1026 BellSouth Network Solutions,
23577 763 777 Korea Telecom (ATM-MPLS)
7011 747 846 Citizens Utilities
9498 650 979 BHARTI BT INTERNET LTD.
4755 640 1241 Videsh Sanchar Nigam Ltd. Aut
4766 595 789 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 547 1313 Time Warner Telecom
17488 530 707 Hathway IP Over Cable Interne
6517 526 559 Yipes Communications, Inc.
15270 517 550 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
5668 479 615 CenturyTel Internet Holdings,
18101 479 563 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:81 9:1 12:1810 15:18
16:3 17:3 18:11 20:38 24:933 25:1
32:51 33:3 38:329 40:61 41:180 44:2
47:4 52:4 55:3 56:3 57:25 58:415
59:389 60:312 61:992 62:876 63:1977 64:3127
65:2354 66:3284 67:745 68:632 69:1890 70:432
71:111 72:1329 73:1 74:539 75:263 76:74
77:256 78:2 80:812 81:815 82:702 83:384
84:419 85:855 86:338 87:478 88:285 89:884
90:7 91:379 94:1 97:6 98:3 116:209
117:57 121:211 122:555 123:119 124:836 125:942
128:287 129:224 130:127 131:367 132:53 133:9
134:194 135:39 136:184 137:81 138:148 139:73
140:479 141:173 142:374 143:251 144:298 145:43
146:321 147:120 148:397 149:147 150:113 151:160
152:91 153:126 154:4 155:254 156:152 157:211
158:157 159:158 160:106 161:91 162:226 163:183
164:449 165:408 166:293 167:287 168:512 169:120
170:405 171:18 172:1 189:62 190:673 192:5763
193:3887 194:3158 195:2241 196:937 198:3823 199:3282
200:4908 201:1073 202:7386 203:7550 204:3965 205:2027
206:2418 207:2793 208:2703 209:3507 210:2472 211:959
212:1312 213:1479 214:418 215:40 216:4002 217:1149
218:360 219:383 220:980 221:412 222:263
End of report
