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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 15 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/15/0400
Analysis Summary
----------------
BGP routing table entries examined: 220154
Prefixes after maximum aggregation: 117203
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 106739
Total ASes present in the Internet Routing Table: 25167
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21927
Origin ASes announcing only one prefix: 10606
Transit ASes present in the Internet Routing Table: 3240
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (15941) 12
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1717912000
Equivalent to 102 /8s, 101 /16s and 65 /24s
Percentage of available address space announced: 46.3
Percentage of allocated address space announced: 61.4
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 115275
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50658
Total APNIC prefixes after maximum aggregation: 20198
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 47676
Unique aggregates announced from the APNIC address blocks: 21107
APNIC Region origin ASes present in the Internet Routing Table: 2940
APNIC Prefixes per ASN: 16.22
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: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 292724416
Equivalent to 17 /8s, 114 /16s and 158 /24s
Percentage of available APNIC address space announced: 72.5
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: 106317
Total ARIN prefixes after maximum aggregation: 62059
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78391
Unique aggregates announced from the ARIN address blocks: 30577
ARIN Region origin ASes present in the Internet Routing Table: 11570
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4441
ARIN Region transit ASes present in the Internet Routing Table: 1046
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 332319872
Equivalent to 19 /8s, 206 /16s and 204 /24s
Percentage of available ARIN address space announced: 73.4
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: 45548
Total RIPE prefixes after maximum aggregation: 29771
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42082
Unique aggregates announced from the RIPE address blocks: 28097
RIPE Region origin ASes present in the Internet Routing Table: 9600
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5070
RIPE Region transit ASes present in the Internet Routing Table: 1543
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 305949824
Equivalent to 18 /8s, 60 /16s and 108 /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: 15052
Total LACNIC prefixes after maximum aggregation: 4149
LACNIC Deaggregation factor: 3.63
Prefixes being announced from the LACNIC address blocks: 13150
Unique aggregates announced from the LACNIC address blocks: 7211
LACNIC Region origin ASes present in the Internet Routing Table: 788
LACNIC Prefixes per ASN: 16.69
LACNIC Region origin ASes announcing only one prefix: 254
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 38816000
Equivalent to 2 /8s, 80 /16s and 73 /24s
Percentage of available LACNIC address space announced: 57.8
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: 2567
Total AfriNIC prefixes after maximum aggregation: 1016
AfriNIC Deaggregation factor: 2.53
Prefixes being announced from the AfriNIC address blocks: 1930
Unique aggregates announced from the AfriNIC address blocks: 1191
AfriNIC Region origin ASes present in the Internet Routing Table: 190
AfriNIC Prefixes per ASN: 10.16
AfriNIC Region origin ASes announcing only one prefix: 56
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6037504
Equivalent to 0 /8s, 92 /16s and 32 /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 1281 9601 275 CHINANET-BACKBONE
4755 1214 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1104 79 379 Sify Limited
9498 979 469 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 628 142 80 TPG Internet Pty Ltd
1221 544 1954 421 Telstra Pty Ltd
18101 538 116 29 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 460 807 76 China Telecom (Shanghai)
9443 452 115 74 Primus Telecommunications
7474 414 218 270 SingTel Optus Pty Ltd
4802 360 86 148 Wantree Development
17557 356 37 169 Pakistan Telecom
4837 344 4709 159 chinanet IDC center beijing n
17974 343 129 12 PT TELEKOMUNIKASI INDONESIA
4808 331 669 112 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6144 993 AT&T WorldNet Services
4323 1263 1027 360 Time Warner Telecom
2386 1130 580 749 AT&T Data Communications Serv
6478 1094 339 133 AT&T Worldnet Services
11492 1047 104 22 Cable One
6197 1036 688 503 BellSouth Network Solutions,
18566 1006 288 9 Covad Communications
174 965 6792 873 Cogent Communications
701 960 6661 732 UUNET Technologies, Inc.
20115 818 742 428 Charter Communications
1239 813 2715 576 Sprint
7011 792 226 473 Citizens Utilities
19262 771 2620 207 Verizon Global Networks
209 729 3847 583 Qwest
22773 714 1888 43 Cox Communications, Inc.
5668 601 160 17 CenturyTel Internet Holdings,
721 595 21755 270 DLA Systems Automation Center
852 589 1096 370 Telus Advanced Communications
7029 587 456 79 Alltel Information Services,
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 521 1941 414 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 304 4993 252 Deutsche Telekom AG
6746 277 128 254 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 208 340 198 Song Networks
8551 206 196 30 Bezeq International
3352 203 1783 37 Ibernet, Internet Access Netw
30890 201 17 93 SC Kappa Invexim SRL
20858 196 34 4 EgyNet
9116 194 136 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
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1207 1870 212 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 280 143 29 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.
23216 157 19 42 RAMtelecom Telecomunicaciones
14522 155 25 7 SatNet S.A.
21826 155 27 59 INTERCABLE
7910 152 11 34 ANDINET ON LINE
19429 152 93 42 E.T.B.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 230 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 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 43 13 24 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
33776 26 2 8 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1214 1142 Videsh Sanchar Nigam Ltd. Aut
11492 1047 1025 Cable One
4134 1281 1006 CHINANET-BACKBONE
18566 1006 997 Covad Communications
8151 1207 995 UniNet S.A. de C.V.
6478 1094 961 AT&T Worldnet Services
9498 979 907 BHARTI BT INTERNET LTD.
4323 1263 903 Time Warner Telecom
9583 1104 725 Sify Limited
22773 714 671 Cox Communications, Inc.
17488 676 641 Hathway IP Over Cable Interne
5668 601 584 CenturyTel Internet Holdings,
19262 771 564 Verizon Global Networks
7545 628 548 TPG Internet Pty Ltd
6197 1036 533 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 538 509 Reliance Infocom Ltd Internet
7029 587 508 Alltel Information Services,
15270 533 498 PaeTec.net -a division of Pae
4668 507 497 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
47588 UNALLOCATED 64.71.19.0/24 33544 WiLine Networks Inc.
47588 UNALLOCATED 64.71.29.0/24 33544 WiLine Networks Inc.
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 /11:34 /12:123
/13:237 /14:450 /15:866 /16:9377 /17:3853 /18:6399
/19:13472 /20:15364 /21:13883 /22:17995 /23:19254 /24:116648
/25:779 /26:828 /27:478 /28:59 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1085 1094 AT&T Worldnet Services
11492 1033 1047 Cable One
18566 988 1006 Covad Communications
9583 942 1104 Sify Limited
2386 826 1130 AT&T Data Communications Serv
7018 806 1496 AT&T WorldNet Services
6197 796 1036 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 695 792 Citizens Utilities
9498 647 979 BHARTI BT INTERNET LTD.
4755 610 1214 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
8151 584 1207 UniNet S.A. de C.V.
19916 563 568 OLM LLC
4323 522 1263 Time Warner Telecom
15270 500 533 PaeTec.net -a division of Pae
17488 497 676 Hathway IP Over Cable Interne
4668 496 507 LG-EDS Systems Inc.
5668 466 601 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 12:1797 15:19
16:3 17:3 18:8 20:37 24:944 25:1
32:53 38:312 40:60 41:124 44:2 47:5
52:4 55:2 56:3 57:26 58:392 59:342
60:273 61:933 62:972 63:1966 64:3101 65:2358
66:3272 67:800 68:636 69:1830 70:501 71:105
72:1327 73:1 74:446 75:259 76:56 77:190
80:849 81:801 82:606 83:375 84:412 85:768
86:360 87:471 88:271 89:862 90:6 91:295
97:5 116:66 121:183 122:525 123:98 124:796
125:932 128:274 129:219 130:124 131:363 132:52
133:10 134:192 135:39 136:183 137:78 138:138
139:68 140:475 141:170 142:370 143:234 144:289
145:43 146:321 147:117 148:385 149:144 150:115
151:157 152:92 153:120 154:4 155:253 156:152
157:187 158:160 159:157 160:105 161:90 162:233
163:177 164:442 165:406 166:234 167:281 168:495
169:119 170:399 171:15 172:1 189:427 190:602
192:5765 193:3821 194:3106 195:2213 196:924 198:3743
199:3290 200:4757 201:1013 202:7275 203:7473 204:3955
205:2071 206:2358 207:2883 208:2672 209:3591 210:2469
211:946 212:1299 213:1462 214:411 215:40 216:4004
217:1141 218:357 219:359 220:946 221:402 222:264
End of report
