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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 27 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/27/0400
Analysis Summary
----------------
BGP routing table entries examined: 221427
Prefixes after maximum aggregation: 117619
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107438
Total ASes present in the Internet Routing Table: 25270
Prefixes per ASN: 8.76
Origin-only ASes present in the Internet Routing Table: 22014
Origin ASes announcing only one prefix: 10658
Transit ASes present in the Internet Routing Table: 3256
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: 24
Max AS path prepend of ASN (16327) 21
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: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1706371040
Equivalent to 101 /8s, 181 /16s and 39 /24s
Percentage of available address space announced: 46.0
Percentage of allocated address space announced: 61.0
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116131
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51076
Total APNIC prefixes after maximum aggregation: 20309
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 48082
Unique aggregates announced from the APNIC address blocks: 21301
APNIC Region origin ASes present in the Internet Routing Table: 2951
APNIC Prefixes per ASN: 16.29
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 445
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 295431584
Equivalent to 17 /8s, 155 /16s and 237 /24s
Percentage of available APNIC address space announced: 73.2
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: 106716
Total ARIN prefixes after maximum aggregation: 62230
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78722
Unique aggregates announced from the ARIN address blocks: 30802
ARIN Region origin ASes present in the Internet Routing Table: 11594
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4456
ARIN Region transit ASes present in the Internet Routing Table: 1054
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 334263680
Equivalent to 19 /8s, 236 /16s and 117 /24s
Percentage of available ARIN address space announced: 73.8
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: 45721
Total RIPE prefixes after maximum aggregation: 29905
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42225
Unique aggregates announced from the RIPE address blocks: 28260
RIPE Region origin ASes present in the Internet Routing Table: 9663
RIPE Prefixes per ASN: 4.37
RIPE Region origin ASes announcing only one prefix: 5100
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: 306904960
Equivalent to 18 /8s, 74 /16s and 255 /24s
Percentage of available RIPE address space announced: 76.2
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: 15311
Total LACNIC prefixes after maximum aggregation: 4163
LACNIC Deaggregation factor: 3.68
Prefixes being announced from the LACNIC address blocks: 13398
Unique aggregates announced from the LACNIC address blocks: 7307
LACNIC Region origin ASes present in the Internet Routing Table: 795
LACNIC Prefixes per ASN: 16.85
LACNIC Region origin ASes announcing only one prefix: 254
LACNIC Region transit ASes present in the Internet Routing Table: 142
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 38972928
Equivalent to 2 /8s, 82 /16s and 174 /24s
Percentage of available LACNIC address space announced: 58.1
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: 1000
AfriNIC Deaggregation factor: 2.59
Prefixes being announced from the AfriNIC address blocks: 1974
Unique aggregates announced from the AfriNIC address blocks: 1181
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.44
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: 6127872
Equivalent to 0 /8s, 93 /16s and 129 /24s
Percentage of available AfriNIC address space announced: 18.3
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 9966 276 CHINANET-BACKBONE
4755 1223 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1110 79 383 Sify Limited
9498 982 469 71 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 777 35 707 Korea Telecom (ATM-MPLS)
17488 694 45 38 Hathway IP Over Cable Interne
7545 626 142 79 TPG Internet Pty Ltd
1221 550 1954 425 Telstra Pty Ltd
18101 547 116 37 Reliance Infocom Ltd Internet
4668 505 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 462 821 76 China Telecom (Shanghai)
9443 455 115 74 Primus Telecommunications
7474 410 218 269 SingTel Optus Pty Ltd
4802 409 86 148 Wantree Development
9829 362 258 14 BSNL National Internet Backbo
17557 356 37 169 Pakistan Telecom
2907 353 1700 301 SINET Japan
17974 349 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6144 991 AT&T WorldNet Services
4323 1270 1032 365 Time Warner Telecom
2386 1152 596 757 AT&T Data Communications Serv
6478 1100 343 121 AT&T Worldnet Services
11492 1073 104 24 Cable One
6197 1039 706 507 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 959 6614 736 UUNET Technologies, Inc.
174 953 6775 862 Cogent Communications
1239 819 2731 579 Sprint
20115 807 724 428 Charter Communications
7011 799 227 476 Citizens Utilities
19262 777 2678 210 Verizon Global Networks
209 743 3852 582 Qwest
22773 722 1892 44 Cox Communications, Inc.
5668 598 160 17 CenturyTel Internet Holdings,
7385 596 166 463 Linkport Communications
852 589 1090 371 Telus Advanced Communications
7029 587 488 80 Alltel Information Services,
721 573 21659 267 DLA Systems Automation Center
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 518 1939 411 UUNET - Commercial IP service
24863 345 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 306 4994 253 Deutsche Telekom AG
6746 280 128 255 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
8220 250 459 241 COLT Telecommunications
3215 246 2279 94 France Telecom Transpac
8708 236 288 229 Romania Data Systems S.A.
5089 219 1658 53 NTL Group Limited
3269 216 2647 74 TELECOM ITALIA
8551 206 196 30 Bezeq International
3246 202 337 192 Song Networks
3352 200 1799 36 Ibernet, Internet Access Netw
9116 196 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
12479 185 578 6 Uni2 Autonomous System
30890 183 15 90 SC Kappa Invexim SRL
3300 182 171 89 AUCS Communications Services
786 176 1795 176 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1308 1870 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 366 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 317 238 12 VTR PUNTO NET S.A.
7303 285 143 29 Telecom Argentina Stet-France
6471 265 74 31 ENTEL CHILE S.A.
14117 242 16 13 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 223 168 25 Telefonica Del Peru
6503 216 172 86 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 186 53 24 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
7910 157 11 31 ANDINET ON LINE
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 59 INTERCABLE
19429 154 94 43 E.T.B.
7738 143 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 284 867 224 The Internet Solution
8452 228 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 134 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
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33766 26 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1223 1151 Videsh Sanchar Nigam Ltd. Aut
8151 1308 1097 UniNet S.A. de C.V.
11492 1073 1049 Cable One
4134 1285 1009 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1100 979 AT&T Worldnet Services
9498 982 911 BHARTI BT INTERNET LTD.
4323 1270 905 Time Warner Telecom
9583 1110 727 Sify Limited
22773 722 678 Cox Communications, Inc.
17488 694 656 Hathway IP Over Cable Interne
5668 598 581 CenturyTel Internet Holdings,
19262 777 567 Verizon Global Networks
7545 626 547 TPG Internet Pty Ltd
6197 1039 532 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 547 510 Reliance Infocom Ltd Internet
7029 587 507 Alltel Information Services,
15270 541 506 PaeTec.net -a division of Pae
855 566 495 Canadian Research Network
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 /8:18 /9:9 /10:14 /11:35 /12:123
/13:237 /14:452 /15:870 /16:9411 /17:3892 /18:6371
/19:13491 /20:15483 /21:13980 /22:18177 /23:19418 /24:117292
/25:762 /26:826 /27:473 /28:65 /29:8 /30:8
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1091 1100 AT&T Worldnet Services
11492 1059 1073 Cable One
18566 992 1010 Covad Communications
9583 947 1110 Sify Limited
2386 848 1152 AT&T Data Communications Serv
7018 808 1500 AT&T WorldNet Services
6197 794 1039 BellSouth Network Solutions,
23577 763 777 Korea Telecom (ATM-MPLS)
7011 700 799 Citizens Utilities
8151 686 1308 UniNet S.A. de C.V.
9498 653 982 BHARTI BT INTERNET LTD.
4755 620 1223 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 526 1270 Time Warner Telecom
17488 515 694 Hathway IP Over Cable Interne
15270 508 541 PaeTec.net -a division of Pae
4668 495 505 LG-EDS Systems Inc.
18101 466 547 Reliance Infocom Ltd Internet
855 464 566 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:73 9:1 12:1807 15:19
16:3 17:3 18:8 20:38 24:946 25:1
32:52 33:2 38:312 40:61 41:142 44:2
47:5 52:4 55:3 56:3 57:24 58:398
59:391 60:297 61:949 62:893 63:1979 64:3127
65:2368 66:3280 67:813 68:639 69:1848 70:513
71:105 72:1318 73:1 74:482 75:262 76:62
77:199 78:2 80:816 81:802 82:577 83:387
84:402 85:764 86:342 87:464 88:273 89:858
90:7 91:318 97:6 116:82 121:184 122:531
123:103 124:817 125:935 128:282 129:222 130:129
131:365 132:52 133:9 134:190 135:38 136:181
137:75 138:140 139:70 140:461 141:171 142:368
143:234 144:293 145:43 146:322 147:118 148:380
149:144 150:115 151:159 152:92 153:124 154:4
155:254 156:152 157:186 158:158 159:158 160:106
161:90 162:234 163:184 164:451 165:404 166:240
167:283 168:497 169:119 170:400 171:16 172:1
189:530 190:624 192:5770 193:3850 194:3130 195:2219
196:940 198:3732 199:3294 200:4785 201:1033 202:7291
203:7525 204:3966 205:2067 206:2366 207:2869 208:2692
209:3589 210:2466 211:964 212:1319 213:1461 214:407
215:40 216:4031 217:1154 218:360 219:379 220:947
221:402 222:263
End of report
