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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 26 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/26/0400
Analysis Summary
----------------
BGP routing table entries examined: 224245
Prefixes after maximum aggregation: 118181
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109066
Total ASes present in the Internet Routing Table: 25521
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22218
Origin ASes announcing only one prefix: 10786
Transit ASes present in the Internet Routing Table: 3303
Transit-only ASes present in the Internet Routing Table: 77
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: 8
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: 1726025568
Equivalent to 102 /8s, 225 /16s and 15 /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: 117785
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52447
Total APNIC prefixes after maximum aggregation: 20525
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 49360
Unique aggregates announced from the APNIC address blocks: 21684
APNIC Region origin ASes present in the Internet Routing Table: 2988
APNIC Prefixes per ASN: 16.52
APNIC Region origin ASes announcing only one prefix: 804
APNIC Region transit ASes present in the Internet Routing Table: 453
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 300633760
Equivalent to 17 /8s, 235 /16s and 78 /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: 106955
Total ARIN prefixes after maximum aggregation: 62144
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78630
Unique aggregates announced from the ARIN address blocks: 31133
ARIN Region origin ASes present in the Internet Routing Table: 11648
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4479
ARIN Region transit ASes present in the Internet Routing Table: 1065
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 337079680
Equivalent to 20 /8s, 23 /16s and 109 /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: 47095
Total RIPE prefixes after maximum aggregation: 30261
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43507
Unique aggregates announced from the RIPE address blocks: 28815
RIPE Region origin ASes present in the Internet Routing Table: 9807
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5192
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: 22
Number of RIPE addresses announced to Internet: 317829632
Equivalent to 18 /8s, 241 /16s and 178 /24s
Percentage of available RIPE address space announced: 78.9
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: 15229
Total LACNIC prefixes after maximum aggregation: 4239
LACNIC Deaggregation factor: 3.59
Prefixes being announced from the LACNIC address blocks: 13290
Unique aggregates announced from the LACNIC address blocks: 7515
LACNIC Region origin ASes present in the Internet Routing Table: 812
LACNIC Prefixes per ASN: 16.37
LACNIC Region origin ASes announcing only one prefix: 257
LACNIC Region transit ASes present in the Internet Routing Table: 144
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 39719936
Equivalent to 2 /8s, 94 /16s and 20 /24s
Percentage of available LACNIC address space announced: 59.2
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: 2513
Total AfriNIC prefixes after maximum aggregation: 1004
AfriNIC Deaggregation factor: 2.50
Prefixes being announced from the AfriNIC address blocks: 1997
Unique aggregates announced from the AfriNIC address blocks: 1212
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.62
AfriNIC Region origin ASes announcing only one prefix: 54
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: 6175744
Equivalent to 0 /8s, 94 /16s and 60 /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 1239 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1103 79 392 Sify Limited
9498 999 469 66 BHARTI BT INTERNET LTD.
4766 788 4942 311 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 706 46 44 Hathway IP Over Cable Interne
7545 671 149 109 TPG Internet Pty Ltd
18101 561 117 35 Reliance Infocom Ltd Internet
1221 549 1954 424 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 469 882 87 China Telecom (Shanghai)
9443 467 121 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 409 88 149 Wantree Development
17974 375 129 12 PT TELEKOMUNIKASI INDONESIA
2907 362 1700 301 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
4808 355 668 114 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1478 6102 979 AT&T WorldNet Services
4323 1309 1042 367 Time Warner Telecom
2386 1201 615 750 AT&T Data Communications Serv
6478 1121 367 151 AT&T Worldnet Services
11492 1091 107 23 Cable One
6197 1025 716 509 BellSouth Network Solutions,
18566 1011 288 9 Covad Communications
174 958 6778 870 Cogent Communications
701 954 6597 725 UUNET Technologies, Inc.
7011 845 250 535 Citizens Utilities
1239 802 2734 573 Sprint
20115 799 730 425 Charter Communications
19262 777 2721 201 Verizon Global Networks
209 734 3853 569 Qwest
22773 726 1892 44 Cox Communications, Inc.
5668 614 169 20 CenturyTel Internet Holdings,
7029 600 488 80 Alltel Information Services,
852 579 1088 363 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 351 56 35 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
8220 251 444 243 COLT Telecommunications
3215 250 2320 93 France Telecom Transpac
8708 240 416 230 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
5089 221 1658 53 NTL Group Limited
3269 218 2679 75 TELECOM ITALIA
3352 216 1848 43 Ibernet, Internet Access Netw
9121 208 1441 24 TTnet Autonomous System
9116 199 136 25 Goldenlines main autonomous s
1257 197 1196 175 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 851 1918 209 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 296 144 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 186 19 42 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
19429 152 79 41 E.T.B.
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 213 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 119 8 9 EEPAD TISP TELECOM & INTERNET
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 44 294 34 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 1239 1167 Videsh Sanchar Nigam Ltd. Aut
11492 1091 1068 Cable One
4134 1295 1014 CHINANET-BACKBONE
18566 1011 1002 Covad Communications
6478 1121 970 AT&T Worldnet Services
4323 1309 942 Time Warner Telecom
9498 999 933 BHARTI BT INTERNET LTD.
9583 1103 711 Sify Limited
22773 726 682 Cox Communications, Inc.
17488 706 662 Hathway IP Over Cable Interne
8151 851 642 UniNet S.A. de C.V.
5668 614 594 CenturyTel Internet Holdings,
19262 777 576 Verizon Global Networks
7545 671 562 TPG Internet Pty Ltd
18101 561 526 Reliance Infocom Ltd Internet
7029 600 520 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.
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 /11:34 /12:125
/13:247 /14:462 /15:892 /16:9489 /17:4000 /18:6469
/19:13669 /20:15823 /21:14234 /22:18565 /23:19641 /24:118176
/25:805 /26:987 /27:480 /28:68 /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 1082 1091 Cable One
18566 993 1011 Covad Communications
9583 945 1103 Sify Limited
2386 902 1201 AT&T Data Communications Serv
7018 794 1478 AT&T WorldNet Services
6197 777 1025 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 746 845 Citizens Utilities
9498 670 999 BHARTI BT INTERNET LTD.
4755 640 1239 Videsh Sanchar Nigam Ltd. Aut
4766 595 788 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 546 1309 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 478 614 CenturyTel Internet Holdings,
18101 477 561 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:81 9:1 12:1808 15:18
16:3 17:3 18:11 20:38 24:935 25:1
32:50 33:2 38:324 40:61 41:168 44:2
47:4 52:4 55:3 56:3 57:24 58:419
59:401 60:312 61:987 62:880 63:1978 64:3121
65:2351 66:3281 67:747 68:637 69:1891 70:430
71:112 72:1327 73:1 74:531 75:261 76:65
77:248 78:2 80:810 81:807 82:700 83:390
84:414 85:940 86:338 87:482 88:287 89:865
90:7 91:379 94:1 97:6 98:3 116:195
117:58 121:210 122:554 123:117 124:846 125:945
128:287 129:224 130:128 131:367 132:53 133:9
134:194 135:39 136:184 137:81 138:142 139:74
140:477 141:172 142:375 143:249 144:298 145:43
146:321 147:119 148:402 149:146 150:113 151:158
152:93 153:126 154:4 155:254 156:152 157:196
158:158 159:161 160:106 161:91 162:227 163:183
164:447 165:409 166:294 167:287 168:511 169:119
170:404 171:17 172:1 189:60 190:640 192:5768
193:3888 194:3184 195:2311 196:914 198:3814 199:3288
200:4909 201:1069 202:7419 203:7546 204:3954 205:2029
206:2415 207:2809 208:2694 209:3493 210:2480 211:961
212:1306 213:1496 214:388 215:40 216:3984 217:1152
218:349 219:383 220:976 221:412 222:261
End of report
