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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 18 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/18/0400
Analysis Summary
----------------
BGP routing table entries examined: 220425
Prefixes after maximum aggregation: 117299
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107050
Total ASes present in the Internet Routing Table: 25205
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21959
Origin ASes announcing only one prefix: 10630
Transit ASes present in the Internet Routing Table: 3246
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: 25
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1719698368
Equivalent to 102 /8s, 128 /16s and 131 /24s
Percentage of available address space announced: 46.4
Percentage of allocated address space announced: 61.5
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 115502
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50784
Total APNIC prefixes after maximum aggregation: 20277
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47798
Unique aggregates announced from the APNIC address blocks: 21267
APNIC Region origin ASes present in the Internet Routing Table: 2943
APNIC Prefixes per ASN: 16.24
APNIC Region origin ASes announcing only one prefix: 785
APNIC Region transit ASes present in the Internet Routing Table: 441
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 293329088
Equivalent to 17 /8s, 123 /16s and 216 /24s
Percentage of available APNIC address space announced: 72.7
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: 106383
Total ARIN prefixes after maximum aggregation: 62020
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78425
Unique aggregates announced from the ARIN address blocks: 30652
ARIN Region origin ASes present in the Internet Routing Table: 11574
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4444
ARIN Region transit ASes present in the Internet Routing Table: 1048
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 333439616
Equivalent to 19 /8s, 223 /16s and 226 /24s
Percentage of available ARIN address space announced: 73.6
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: 45514
Total RIPE prefixes after maximum aggregation: 29842
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42037
Unique aggregates announced from the RIPE address blocks: 28143
RIPE Region origin ASes present in the Internet Routing Table: 9631
RIPE Prefixes per ASN: 4.36
RIPE Region origin ASes announcing only one prefix: 5088
RIPE Region transit ASes present in the Internet Routing Table: 1545
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 306171520
Equivalent to 18 /8s, 63 /16s and 206 /24s
Percentage of available RIPE address space announced: 76.0
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: 15149
Total LACNIC prefixes after maximum aggregation: 4146
LACNIC Deaggregation factor: 3.65
Prefixes being announced from the LACNIC address blocks: 13244
Unique aggregates announced from the LACNIC address blocks: 7247
LACNIC Region origin ASes present in the Internet Routing Table: 792
LACNIC Prefixes per ASN: 16.72
LACNIC Region origin ASes announcing only one prefix: 258
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: 25
Number of LACNIC addresses announced to Internet: 38848000
Equivalent to 2 /8s, 80 /16s and 198 /24s
Percentage of available LACNIC address space announced: 57.9
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: 2584
Total AfriNIC prefixes after maximum aggregation: 1002
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 1956
Unique aggregates announced from the AfriNIC address blocks: 1175
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.40
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6053888
Equivalent to 0 /8s, 92 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 18.0
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 1285 9713 277 CHINANET-BACKBONE
4755 1216 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1105 80 382 Sify Limited
9498 982 469 72 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 778 35 707 Korea Telecom (ATM-MPLS)
17488 676 44 35 Hathway IP Over Cable Interne
7545 625 142 79 TPG Internet Pty Ltd
1221 548 1954 423 Telstra Pty Ltd
18101 537 116 33 Reliance Infocom Ltd Internet
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 459 807 76 China Telecom (Shanghai)
9443 454 115 74 Primus Telecommunications
7474 414 218 270 SingTel Optus Pty Ltd
9829 362 258 14 BSNL National Internet Backbo
4802 360 86 148 Wantree Development
17557 355 37 168 Pakistan Telecom
17974 350 129 12 PT TELEKOMUNIKASI INDONESIA
4837 343 4693 158 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6163 991 AT&T WorldNet Services
4323 1265 1027 361 Time Warner Telecom
2386 1141 580 754 AT&T Data Communications Serv
6478 1096 341 122 AT&T Worldnet Services
11492 1053 104 23 Cable One
6197 1033 687 506 BellSouth Network Solutions,
18566 1006 288 9 Covad Communications
701 963 6661 735 UUNET Technologies, Inc.
174 960 6792 868 Cogent Communications
1239 816 2715 577 Sprint
20115 808 725 429 Charter Communications
7011 793 226 474 Citizens Utilities
19262 774 2645 208 Verizon Global Networks
209 728 3847 582 Qwest
22773 715 1888 43 Cox Communications, Inc.
5668 600 160 17 CenturyTel Internet Holdings,
7385 597 166 463 Linkport Communications
721 594 21747 270 DLA Systems Automation Center
852 589 1096 370 Telus Advanced Communications
7029 587 456 79 Alltel Information Services,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 519 1939 412 UUNET - Commercial IP service
24863 346 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 304 4993 252 Deutsche Telekom AG
6746 278 128 254 Dynamic Network Technologies,
680 257 2044 250 DFN-IP service G-WiN
8220 249 459 240 COLT Telecommunications
3215 238 2254 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 216 2647 74 TELECOM ITALIA
3246 209 340 199 Song Networks
8551 206 196 30 Bezeq International
3352 203 1783 37 Ibernet, Internet Access Netw
30890 201 17 93 SC Kappa Invexim SRL
9116 196 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
3300 184 171 90 AUCS Communications Services
12479 184 578 6 Uni2 Autonomous System
786 177 1795 177 The JANET IP Service
5089 174 1658 53 NTL Group Limited
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1234 1870 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 365 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 238 12 VTR PUNTO NET S.A.
7303 299 143 28 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 243 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 221 166 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 190 23 12 NEWCOM AMERICAS
10620 186 53 24 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 152 93 42 E.T.B.
7738 141 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 867 224 The Internet Solution
8452 229 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 129 84 4 Nile Online
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
2561 61 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 13 23 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
8524 30 2 6 AUCEGYPT Autonomous System
21280 28 4 4 Swift Global Kenya Ltd.Is an
33766 26 2 1 Nyala Communications Pty Ltd
33776 26 2 8 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1216 1144 Videsh Sanchar Nigam Ltd. Aut
11492 1053 1030 Cable One
8151 1234 1023 UniNet S.A. de C.V.
4134 1285 1008 CHINANET-BACKBONE
18566 1006 997 Covad Communications
6478 1096 974 AT&T Worldnet Services
9498 982 910 BHARTI BT INTERNET LTD.
4323 1265 904 Time Warner Telecom
9583 1105 723 Sify Limited
22773 715 672 Cox Communications, Inc.
17488 676 641 Hathway IP Over Cable Interne
5668 600 583 CenturyTel Internet Holdings,
19262 774 566 Verizon Global Networks
7545 625 546 TPG Internet Pty Ltd
6197 1033 527 BellSouth Network Solutions,
19916 568 517 OLM LLC
7029 587 508 Alltel Information Services,
18101 537 504 Reliance Infocom Ltd Internet
15270 533 498 PaeTec.net -a division of Pae
4668 508 498 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65019 PRIVATE 63.138.117.0/24 19034 Norcom Networks Corp
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
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 /8:19 /9:9 /10:14 /11:35 /12:122
/13:237 /14:451 /15:869 /16:9378 /17:3851 /18:6380
/19:13464 /20:15368 /21:13910 /22:18046 /23:19288 /24:116814
/25:789 /26:827 /27:479 /28:62 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1087 1096 AT&T Worldnet Services
11492 1039 1053 Cable One
18566 988 1006 Covad Communications
9583 943 1105 Sify Limited
2386 837 1141 AT&T Data Communications Serv
7018 806 1500 AT&T WorldNet Services
6197 793 1033 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 695 793 Citizens Utilities
9498 649 982 BHARTI BT INTERNET LTD.
4755 612 1216 Videsh Sanchar Nigam Ltd. Aut
8151 611 1234 UniNet S.A. de C.V.
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 523 1265 Time Warner Telecom
15270 500 533 PaeTec.net -a division of Pae
4668 497 508 LG-EDS Systems Inc.
17488 497 676 Hathway IP Over Cable Interne
5668 465 600 CenturyTel Internet Holdings,
855 464 566 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:73 9:1 12:1798 15:19
16:3 17:3 18:8 20:38 24:935 25:1
32:53 33:2 38:312 40:60 41:125 44:2
47:5 52:4 55:2 56:3 57:25 58:398
59:387 60:273 61:944 62:913 63:1970 64:3108
65:2365 66:3266 67:812 68:633 69:1827 70:514
71:103 72:1324 73:1 74:458 75:259 76:58
77:192 80:829 81:802 82:574 83:375 84:394
85:755 86:352 87:472 88:273 89:865 90:6
91:300 97:6 116:73 121:184 122:524 123:103
124:803 125:932 128:278 129:221 130:126 131:367
132:52 133:10 134:193 135:39 136:185 137:80
138:139 139:70 140:472 141:170 142:371 143:234
144:289 145:43 146:322 147:117 148:388 149:144
150:114 151:159 152:92 153:123 154:4 155:254
156:151 157:187 158:160 159:158 160:106 161:90
162:234 163:178 164:451 165:401 166:235 167:280
168:493 169:120 170:400 171:16 172:1 189:453
190:607 192:5758 193:3838 194:3121 195:2220 196:943
198:3742 199:3285 200:4785 201:1012 202:7280 203:7492
204:3956 205:2064 206:2361 207:2878 208:2680 209:3591
210:2481 211:954 212:1305 213:1464 214:407 215:40
216:3997 217:1154 218:357 219:355 220:948 221:397
222:264
End of report
