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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 26 Apr, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/04/26/0400
Analysis Summary
----------------
BGP routing table entries examined: 218696
Prefixes after maximum aggregation: 116754
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 105125
Total ASes present in the Internet Routing Table: 25024
Prefixes per ASN: 8.74
Origin-only ASes present in the Internet Routing Table: 21801
Origin ASes announcing only one prefix: 10536
Transit ASes present in the Internet Routing Table: 3223
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1714096256
Equivalent to 102 /8s, 43 /16s and 8 /24s
Percentage of available address space announced: 46.2
Percentage of allocated address space announced: 62.8
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 114256
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50356
Total APNIC prefixes after maximum aggregation: 20209
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 47387
Unique aggregates announced from the APNIC address blocks: 21122
APNIC Region origin ASes present in the Internet Routing Table: 2922
APNIC Prefixes per ASN: 16.22
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 436
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 292301312
Equivalent to 17 /8s, 108 /16s and 42 /24s
Percentage of available APNIC address space announced: 72.4
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: 106009
Total ARIN prefixes after maximum aggregation: 61885
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78075
Unique aggregates announced from the ARIN address blocks: 30364
ARIN Region origin ASes present in the Internet Routing Table: 11519
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4403
ARIN Region transit ASes present in the Internet Routing Table: 1050
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 329584512
Equivalent to 19 /8s, 165 /16s and 15 /24s
Percentage of available ARIN address space announced: 72.8
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: 45101
Total RIPE prefixes after maximum aggregation: 29522
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41664
Unique aggregates announced from the RIPE address blocks: 26812
RIPE Region origin ASes present in the Internet Routing Table: 9530
RIPE Prefixes per ASN: 4.37
RIPE Region origin ASes announcing only one prefix: 5034
RIPE Region transit ASes present in the Internet Routing Table: 1532
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 305529600
Equivalent to 18 /8s, 54 /16s and 3 /24s
Percentage of available RIPE address space announced: 75.9
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: 14646
Total LACNIC prefixes after maximum aggregation: 4129
LACNIC Deaggregation factor: 3.55
Prefixes being announced from the LACNIC address blocks: 12734
Unique aggregates announced from the LACNIC address blocks: 7086
LACNIC Region origin ASes present in the Internet Routing Table: 784
LACNIC Prefixes per ASN: 16.24
LACNIC Region origin ASes announcing only one prefix: 254
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 38336512
Equivalent to 2 /8s, 72 /16s and 248 /24s
Percentage of available LACNIC address space announced: 57.1
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: 2575
Total AfriNIC prefixes after maximum aggregation: 1003
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1943
Unique aggregates announced from the AfriNIC address blocks: 1181
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.28
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6062336
Equivalent to 0 /8s, 92 /16s and 129 /24s
Percentage of available AfriNIC address space announced: 18.1
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 1278 9505 271 CHINANET-BACKBONE
4755 1199 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1102 79 381 Sify Limited
9498 973 469 74 BHARTI BT INTERNET LTD.
4766 782 4943 312 Korea Telecom (KIX)
23577 780 35 708 Korea Telecom (ATM-MPLS)
17488 666 43 36 Hathway IP Over Cable Interne
7545 624 142 80 TPG Internet Pty Ltd
1221 581 1957 450 Telstra Pty Ltd
18101 529 116 26 Reliance Infocom Ltd Internet
4668 506 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 463 811 75 China Telecom (Shanghai)
9443 458 115 74 Primus Telecommunications
7474 401 217 268 SingTel Optus Pty Ltd
17557 359 35 171 Pakistan Telecom
9829 358 274 14 BSNL National Internet Backbo
4802 357 86 147 Wantree Development
4837 344 4724 158 chinanet IDC center beijing n
17974 339 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1491 6126 985 AT&T WorldNet Services
4323 1268 1022 360 Time Warner Telecom
2386 1129 564 759 AT&T Data Communications Serv
6478 1095 336 149 AT&T Worldnet Services
11492 1040 103 19 Cable One
6197 1036 688 503 BellSouth Network Solutions,
18566 1001 288 9 Covad Communications
174 950 6791 866 Cogent Communications
701 934 6658 728 UUNET Technologies, Inc.
20115 822 734 426 Charter Communications
1239 818 2717 575 Sprint
7011 785 225 468 Citizens Utilities
19262 728 2555 183 Verizon Global Networks
209 727 3733 582 Qwest
22773 705 1871 40 Cox Communications, Inc.
721 617 21756 274 DLA Systems Automation Center
852 594 1097 376 Telus Advanced Communications
5668 592 160 17 CenturyTel Internet Holdings,
7029 575 456 81 Alltel Information Services,
855 568 253 71 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 519 1941 413 UUNET - Commercial IP service
24863 343 47 31 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 274 95 251 Dynamic Network Technologies,
8220 259 461 250 COLT Telecommunications
680 256 2044 250 DFN-IP service G-WiN
3215 240 2256 92 France Telecom Transpac
8708 237 288 230 Romania Data Systems S.A.
3269 215 2583 73 TELECOM ITALIA
3246 207 340 197 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 95 SC Kappa Invexim SRL
3352 200 1799 33 Ibernet, Internet Access Netw
20858 196 34 4 EgyNet
1257 193 1180 171 SWIPnet Swedish IP Network
9116 188 134 24 Goldenlines main autonomous s
12479 184 578 6 Uni2 Autonomous System
3300 183 171 88 AUCS Communications Services
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1079 1869 212 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 365 116 64 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 311 238 12 VTR PUNTO NET S.A.
7303 267 143 24 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 235 128 3 Cable-Wireless Panama
6147 220 164 24 Telefonica Del Peru
6503 213 171 85 AVANTEL, S.A.
20299 192 23 14 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
10620 171 49 22 TVCABLE BOGOTA
23216 158 19 42 RAMtelecom Telecomunicaciones
21826 154 27 58 INTERCABLE
7910 153 11 30 ANDINET ON LINE
19429 148 92 39 E.T.B.
14522 146 22 5 SatNet S.A.
19169 142 9 27 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 226 188 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 117 7 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 75 173 67 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
23889 55 16 13 MAURITIUS TELECOM
15706 51 12 4 Sudatel Internet Exchange Aut
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
33776 30 2 7 Starcomms Nigeria Limited
33766 28 2 1 Nyala Communications Pty Ltd
21280 27 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 1199 1127 Videsh Sanchar Nigam Ltd. Aut
11492 1040 1021 Cable One
4134 1278 1007 CHINANET-BACKBONE
18566 1001 992 Covad Communications
6478 1095 946 AT&T Worldnet Services
4323 1268 908 Time Warner Telecom
9498 973 899 BHARTI BT INTERNET LTD.
8151 1079 867 UniNet S.A. de C.V.
9583 1102 721 Sify Limited
22773 705 665 Cox Communications, Inc.
17488 666 630 Hathway IP Over Cable Interne
5668 592 575 CenturyTel Internet Holdings,
19262 728 545 Verizon Global Networks
7545 624 544 TPG Internet Pty Ltd
6197 1036 533 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 529 503 Reliance Infocom Ltd Internet
855 568 497 Canadian Research Network
4668 506 496 LG-EDS Systems Inc.
7029 575 494 Alltel Information Services,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
64786 PRIVATE 170.210.17.0/25 7303 Telecom Argentina St
64785 PRIVATE 170.210.21.128/25 7303 Telecom Argentina St
64807 PRIVATE 170.210.44.0/25 7303 Telecom Argentina St
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
64512 PRIVATE 208.103.63.0/24 32703 Indiana Fiber Networ
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 /8:20 /9:9 /10:13 /11:34 /12:122
/13:236 /14:447 /15:859 /16:9359 /17:3832 /18:6311
/19:13479 /20:15224 /21:13750 /22:17771 /23:19189 /24:115875
/25:771 /26:833 /27:486 /28:61 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1086 1095 AT&T Worldnet Services
11492 1026 1040 Cable One
18566 983 1001 Covad Communications
9583 940 1102 Sify Limited
2386 824 1129 AT&T Data Communications Serv
7018 807 1491 AT&T WorldNet Services
6197 797 1036 BellSouth Network Solutions,
23577 766 780 Korea Telecom (ATM-MPLS)
7011 688 785 Citizens Utilities
9498 637 973 BHARTI BT INTERNET LTD.
4755 593 1199 Videsh Sanchar Nigam Ltd. Aut
4766 588 782 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 530 1268 Time Warner Telecom
4668 496 506 LG-EDS Systems Inc.
15270 494 527 PaeTec.net -a division of Pae
17488 487 666 Hathway IP Over Cable Interne
855 466 568 Canadian Research Network
5668 457 592 CenturyTel Internet Holdings,
8151 456 1079 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:77 9:1 12:1797 15:19
16:3 17:3 18:8 20:37 24:929 25:1
32:53 38:298 40:57 41:125 44:2 47:4
52:4 55:2 56:3 57:26 58:367 59:368
60:268 61:920 62:964 63:1958 64:3114 65:2327
66:3263 67:803 68:639 69:1816 70:502 71:104
72:1255 73:1 74:395 75:256 76:37 77:162
80:859 81:802 82:603 83:372 84:430 85:747
86:373 87:464 88:255 89:860 90:22 91:275
97:6 116:42 121:173 122:523 123:85 124:787
125:932 128:269 129:218 130:121 131:349 132:52
133:10 134:193 135:39 136:179 137:80 138:195
139:64 140:481 141:148 142:370 143:211 144:290
145:43 146:323 147:146 148:397 149:143 150:115
151:125 152:92 153:121 154:4 155:252 156:154
157:183 158:161 159:155 160:104 161:88 162:235
163:145 164:453 165:408 166:234 167:278 168:498
169:120 170:399 171:15 172:1 189:294 190:575
192:5761 193:3785 194:3073 195:2210 196:940 198:3758
199:3298 200:4709 201:958 202:7208 203:7429 204:3950
205:2096 206:2353 207:2909 208:2625 209:3625 210:2471
211:931 212:1301 213:1454 214:404 215:41 216:4011
217:1137 218:354 219:357 220:940 221:398 222:271
End of report
