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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 27 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/27/0400
Analysis Summary
----------------
BGP routing table entries examined: 224174
Prefixes after maximum aggregation: 117855
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 107886
Total ASes present in the Internet Routing Table: 25522
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22225
Origin ASes announcing only one prefix: 10793
Transit ASes present in the Internet Routing Table: 3297
Transit-only ASes present in the Internet Routing Table: 76
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: 1726437856
Equivalent to 102 /8s, 231 /16s and 89 /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: 117722
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52297
Total APNIC prefixes after maximum aggregation: 20157
APNIC Deaggregation factor: 2.59
Prefixes being announced from the APNIC address blocks: 49220
Unique aggregates announced from the APNIC address blocks: 20639
APNIC Region origin ASes present in the Internet Routing Table: 2989
APNIC Prefixes per ASN: 16.47
APNIC Region origin ASes announcing only one prefix: 809
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: 15
Number of APNIC addresses announced to Internet: 300721568
Equivalent to 17 /8s, 236 /16s and 165 /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: 106982
Total ARIN prefixes after maximum aggregation: 62215
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78652
Unique aggregates announced from the ARIN address blocks: 31135
ARIN Region origin ASes present in the Internet Routing Table: 11657
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4483
ARIN Region transit ASes present in the Internet Routing Table: 1063
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 337130048
Equivalent to 20 /8s, 24 /16s and 50 /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: 47088
Total RIPE prefixes after maximum aggregation: 30229
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43492
Unique aggregates announced from the RIPE address blocks: 28687
RIPE Region origin ASes present in the Internet Routing Table: 9795
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5187
RIPE Region transit ASes present in the Internet Routing Table: 1562
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 318041536
Equivalent to 18 /8s, 244 /16s and 237 /24s
Percentage of available RIPE address space announced: 79.0
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: 15267
Total LACNIC prefixes after maximum aggregation: 4237
LACNIC Deaggregation factor: 3.60
Prefixes being announced from the LACNIC address blocks: 13293
Unique aggregates announced from the LACNIC address blocks: 7492
LACNIC Region origin ASes present in the Internet Routing Table: 813
LACNIC Prefixes per ASN: 16.35
LACNIC Region origin ASes announcing only one prefix: 258
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: 39791616
Equivalent to 2 /8s, 95 /16s and 44 /24s
Percentage of available LACNIC address space announced: 59.3
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: 2534
Total AfriNIC prefixes after maximum aggregation: 1009
AfriNIC Deaggregation factor: 2.51
Prefixes being announced from the AfriNIC address blocks: 2009
Unique aggregates announced from the AfriNIC address blocks: 1223
AfriNIC Region origin ASes present in the Internet Routing Table: 191
AfriNIC Prefixes per ASN: 10.52
AfriNIC Region origin ASes announcing only one prefix: 56
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6185728
Equivalent to 0 /8s, 94 /16s and 99 /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 1295 10021 281 CHINANET-BACKBONE
4755 1240 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1092 108 17 Sify Limited
9498 981 469 66 BHARTI BT INTERNET LTD.
4766 789 4943 312 Korea Telecom (KIX)
23577 778 35 705 Korea Telecom (ATM-MPLS)
17488 706 46 44 Hathway IP Over Cable Interne
7545 686 151 108 TPG Internet Pty Ltd
1221 549 1954 424 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.
18101 479 114 32 Reliance Infocom Ltd Internet
9443 467 121 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 409 88 149 Wantree Development
17974 374 129 12 PT TELEKOMUNIKASI INDONESIA
2907 362 1700 301 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
4837 351 4941 165 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6085 986 AT&T WorldNet Services
4323 1308 1042 367 Time Warner Telecom
2386 1201 615 750 AT&T Data Communications Serv
6478 1121 367 151 AT&T Worldnet Services
11492 1093 107 23 Cable One
6197 1025 716 509 BellSouth Network Solutions,
18566 1011 288 9 Covad Communications
174 957 6778 869 Cogent Communications
701 953 6597 724 UUNET Technologies, Inc.
7011 844 250 536 Citizens Utilities
1239 807 2736 578 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 613 169 20 CenturyTel Internet Holdings,
7029 598 488 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
702 514 1938 405 UUNET - Commercial IP service
2119 514 1075 136 Telenor Internet Access
24863 353 56 37 LINKdotNET AS number
3307 323 180 43 BaneTele AS (formerly Enitel)
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 250 2320 93 France Telecom Transpac
8220 250 444 242 COLT Telecommunications
8708 245 418 235 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
5089 221 1658 53 NTL Group Limited
3269 220 2711 73 TELECOM ITALIA
3352 217 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
9116 201 136 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
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 850 1918 211 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
6471 275 74 33 ENTEL CHILE S.A.
14117 255 19 15 Telefonica del Sur 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
19429 150 79 38 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 280 867 221 The Internet Solution
8452 214 188 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 48 16 13 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 1240 1168 Videsh Sanchar Nigam Ltd. Aut
9583 1092 1075 Sify Limited
11492 1093 1070 Cable One
4134 1295 1014 CHINANET-BACKBONE
18566 1011 1002 Covad Communications
6478 1121 970 AT&T Worldnet Services
4323 1308 941 Time Warner Telecom
9498 981 915 BHARTI BT INTERNET LTD.
22773 728 684 Cox Communications, Inc.
17488 706 662 Hathway IP Over Cable Interne
8151 850 639 UniNet S.A. de C.V.
5668 613 593 CenturyTel Internet Holdings,
7545 686 578 TPG Internet Pty Ltd
19262 778 576 Verizon Global Networks
7029 598 518 Alltel Information Services,
19916 568 517 OLM LLC
6197 1025 516 BellSouth Network Solutions,
15270 550 515 PaeTec.net -a division of Pae
6517 547 514 Yipes Communications, Inc.
855 575 502 Canadian Research Network
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
/13:247 /14:462 /15:895 /16:9497 /17:4003 /18:6479
/19:13670 /20:15823 /21:14262 /22:18558 /23:19632 /24:118087
/25:813 /26:986 /27:479 /28:41 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1111 1121 AT&T Worldnet Services
11492 1084 1093 Cable One
18566 993 1011 Covad Communications
9583 925 1092 Sify Limited
2386 903 1201 AT&T Data Communications Serv
7018 792 1475 AT&T WorldNet Services
6197 777 1025 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 745 844 Citizens Utilities
9498 652 981 BHARTI BT INTERNET LTD.
4755 640 1240 Videsh Sanchar Nigam Ltd. Aut
4766 595 789 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 545 1308 Time Warner Telecom
17488 529 706 Hathway IP Over Cable Interne
15270 517 550 PaeTec.net -a division of Pae
6517 515 547 Yipes Communications, Inc.
4668 498 508 LG-EDS Systems Inc.
5668 478 613 CenturyTel Internet Holdings,
855 473 575 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:82 9:1 12:1810 15:18
16:3 17:3 18:11 20:38 24:935 25:1
32:50 33:2 38:329 40:61 41:178 44:2
47:4 52:4 55:3 56:3 57:25 58:419
59:390 60:311 61:992 62:881 63:1977 64:3125
65:2354 66:3281 67:745 68:634 69:1890 70:432
71:112 72:1326 73:1 74:534 75:261 76:66
77:249 78:2 80:811 81:802 82:699 83:388
84:417 85:943 86:337 87:484 88:287 89:863
90:7 91:380 94:1 97:6 98:3 116:206
117:57 121:211 122:555 123:117 124:827 125:943
128:287 129:224 130:128 131:367 132:53 133:9
134:173 135:39 136:184 137:81 138:148 139:74
140:479 141:173 142:368 143:250 144:294 145:43
146:321 147:120 148:401 149:146 150:113 151:159
152:93 153:126 154:4 155:254 156:152 157:211
158:158 159:161 160:106 161:91 162:225 163:184
164:448 165:409 166:294 167:287 168:512 169:120
170:404 171:18 172:1 189:54 190:650 192:5763
193:3885 194:3177 195:2298 196:911 198:3825 199:3288
200:4909 201:1067 202:7391 203:7508 204:3966 205:2027
206:2406 207:2805 208:2700 209:3514 210:2467 211:959
212:1312 213:1495 214:415 215:40 216:4000 217:1151
218:349 219:383 220:919 221:402 222:261
End of report
