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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 17 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 218049
Prefixes after maximum aggregation: 116406
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 105940
Total ASes present in the Internet Routing Table: 24910
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21689
Origin ASes announcing only one prefix: 10480
Transit ASes present in the Internet Routing Table: 3221
Transit-only ASes present in the Internet Routing Table: 80
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: 3
Unregistered 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: 1688410952
Equivalent to 100 /8s, 163 /16s and 27 /24s
Percentage of available address space announced: 45.6
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 113800
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50046
Total APNIC prefixes after maximum aggregation: 20097
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 47087
Unique aggregates announced from the APNIC address blocks: 21125
APNIC Region origin ASes present in the Internet Routing Table: 2919
APNIC Prefixes per ASN: 16.13
APNIC Region origin ASes announcing only one prefix: 784
APNIC Region transit ASes present in the Internet Routing Table: 433
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 291388352
Equivalent to 17 /8s, 94 /16s and 59 /24s
Percentage of available APNIC address space announced: 72.2
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: 105937
Total ARIN prefixes after maximum aggregation: 61834
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77960
Unique aggregates announced from the ARIN address blocks: 30273
ARIN Region origin ASes present in the Internet Routing Table: 11482
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4397
ARIN Region transit ASes present in the Internet Routing Table: 1051
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 328597632
Equivalent to 19 /8s, 150 /16s and 0 /24s
Percentage of available ARIN address space announced: 72.5
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: 44930
Total RIPE prefixes after maximum aggregation: 29383
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41498
Unique aggregates announced from the RIPE address blocks: 27706
RIPE Region origin ASes present in the Internet Routing Table: 9466
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 4992
RIPE Region transit ASes present in the Internet Routing Table: 1534
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 298814208
Equivalent to 17 /8s, 207 /16s and 139 /24s
Percentage of available RIPE address space announced: 74.2
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
40960-43007
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: 14588
Total LACNIC prefixes after maximum aggregation: 4091
LACNIC Deaggregation factor: 3.57
Prefixes being announced from the LACNIC address blocks: 12683
Unique aggregates announced from the LACNIC address blocks: 7108
LACNIC Region origin ASes present in the Internet Routing Table: 776
LACNIC Prefixes per ASN: 16.34
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 136
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38278656
Equivalent to 2 /8s, 72 /16s and 22 /24s
Percentage of available LACNIC address space announced: 57.0
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: 2543
Total AfriNIC prefixes after maximum aggregation: 995
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1909
Unique aggregates announced from the AfriNIC address blocks: 1180
AfriNIC Region origin ASes present in the Internet Routing Table: 186
AfriNIC Prefixes per ASN: 10.26
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: 5978624
Equivalent to 0 /8s, 91 /16s and 58 /24s
Percentage of available AfriNIC address space announced: 17.8
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 1274 9487 269 CHINANET-BACKBONE
4755 1199 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1089 78 377 Sify Limited
9498 972 469 74 BHARTI BT INTERNET LTD.
4766 782 4943 312 Korea Telecom (KIX)
23577 780 35 708 Korea Telecom (ATM-MPLS)
17488 663 43 34 Hathway IP Over Cable Interne
7545 611 142 78 TPG Internet Pty Ltd
1221 579 1956 448 Telstra Pty Ltd
18101 530 116 26 Reliance Infocom Ltd Internet
4668 504 68 10 LG-EDS Systems Inc.
17676 503 10935 65 Softbank BB Corp.
4812 458 799 74 China Telecom (Shanghai)
9443 458 115 74 Primus Telecommunications
7474 394 216 266 SingTel Optus Pty Ltd
9829 359 274 14 BSNL National Internet Backbo
4802 358 86 148 Wantree Development
17557 358 35 173 Pakistan Telecom
17974 345 129 12 PT TELEKOMUNIKASI INDONESIA
4837 342 4596 157 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6125 982 AT&T WorldNet Services
4323 1270 1022 355 Time Warner Telecom
6478 1093 334 146 AT&T Worldnet Services
2386 1086 528 733 AT&T Data Communications Serv
6197 1035 686 501 BellSouth Network Solutions,
11492 1031 102 15 Cable One
18566 999 288 9 Covad Communications
174 953 6792 868 Cogent Communications
701 940 6677 737 UUNET Technologies, Inc.
1239 826 2716 576 Sprint
20115 816 726 425 Charter Communications
7011 783 225 465 Citizens Utilities
209 719 3734 570 Qwest
19262 709 2534 169 Verizon Global Networks
22773 699 1871 40 Cox Communications, Inc.
721 617 21756 274 DLA Systems Automation Center
852 594 1095 376 Telus Advanced Communications
5668 585 160 17 CenturyTel Internet Holdings,
7029 569 456 81 Alltel Information Services,
19916 568 49 54 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 520 1941 414 UUNET - Commercial IP service
24863 341 47 33 LINKdotNET AS number
3301 307 1455 287 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 275 95 252 Dynamic Network Technologies,
680 258 2044 250 DFN-IP service G-WiN
8220 258 461 249 COLT Telecommunications
3215 239 2256 92 France Telecom Transpac
8708 235 288 228 Romania Data Systems S.A.
3269 216 2583 73 TELECOM ITALIA
3246 207 338 196 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 93 SC Kappa Invexim SRL
20858 199 34 4 EgyNet
3352 197 1795 36 Ibernet, Internet Access Netw
1257 191 1180 169 SWIPnet Swedish IP Network
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
786 178 1795 178 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1045 1869 209 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 363 116 64 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 310 238 12 VTR PUNTO NET S.A.
7303 266 143 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 225 176 23 Telefonica Del Peru
6503 212 171 85 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 181 25 24 NEWCOM AMERICAS
10620 169 49 22 TVCABLE BOGOTA
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 156 28 59 INTERCABLE
7910 153 11 30 ANDINET ON LINE
19429 148 91 38 E.T.B.
14522 146 22 5 SatNet S.A.
18822 146 9 6 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 214 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 116 7 8 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 51 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
33766 29 2 1 Nyala Communications Pty Ltd
33776 27 2 5 Starcomms Nigeria Limited
21280 26 4 4 Swift Global Kenya Ltd.Is an
12455 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1199 1123 Videsh Sanchar Nigam Ltd. Aut
11492 1031 1016 Cable One
4134 1274 1005 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1093 947 AT&T Worldnet Services
4323 1270 915 Time Warner Telecom
9498 972 898 BHARTI BT INTERNET LTD.
8151 1045 836 UniNet S.A. de C.V.
9583 1089 712 Sify Limited
22773 699 659 Cox Communications, Inc.
17488 663 629 Hathway IP Over Cable Interne
5668 585 568 CenturyTel Internet Holdings,
19262 709 540 Verizon Global Networks
6197 1035 534 BellSouth Network Solutions,
7545 611 533 TPG Internet Pty Ltd
19916 568 514 OLM LLC
18101 530 504 Reliance Infocom Ltd Internet
4668 504 494 LG-EDS Systems Inc.
855 564 493 Canadian Research Network
15270 524 489 PaeTec.net -a division of Pae
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
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
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
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 /10:12 /11:34 /12:122
/13:235 /14:447 /15:855 /16:9342 /17:3810 /18:6295
/19:13418 /20:15181 /21:13650 /22:17719 /23:19118 /24:115509
/25:767 /26:815 /27:485 /28:60 /29:39 /30:69
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1084 1093 AT&T Worldnet Services
11492 1017 1031 Cable One
18566 981 999 Covad Communications
9583 929 1089 Sify Limited
7018 813 1496 AT&T WorldNet Services
2386 808 1086 AT&T Data Communications Serv
6197 797 1035 BellSouth Network Solutions,
23577 766 780 Korea Telecom (ATM-MPLS)
7011 686 783 Citizens Utilities
9498 635 972 BHARTI BT INTERNET LTD.
4755 590 1199 Videsh Sanchar Nigam Ltd. Aut
4766 588 782 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 534 1270 Time Warner Telecom
4668 494 504 LG-EDS Systems Inc.
15270 491 524 PaeTec.net -a division of Pae
17488 484 663 Hathway IP Over Cable Interne
855 462 564 Canadian Research Network
18101 456 530 Reliance Infocom Ltd Internet
5668 453 585 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:65 9:1 12:1792 15:19
16:3 17:3 18:8 20:35 24:950 25:1
32:53 38:297 40:57 41:117 44:2 47:4
52:4 55:1 56:3 57:26 58:369 59:367
60:264 61:906 62:970 63:1963 64:3109 65:2310
66:3255 67:796 68:647 69:1789 70:489 71:110
72:1255 73:1 74:366 75:253 76:34 77:141
80:837 81:797 82:613 83:377 84:436 85:749
86:445 87:461 88:244 89:841 90:19 91:267
97:1 116:15 121:174 122:523 123:91 124:769
125:937 128:271 129:221 130:125 131:348 132:51
133:10 134:193 135:39 136:180 137:83 138:194
139:62 140:480 141:149 142:367 143:214 144:289
145:43 146:323 147:144 148:397 149:142 150:115
151:124 152:93 153:121 154:4 155:252 156:153
157:182 158:161 159:154 160:103 161:90 162:236
163:141 164:453 165:403 166:246 167:278 168:498
169:120 170:393 171:15 172:1 189:259 190:567
192:5743 193:3786 194:3059 195:2204 196:923 198:3755
199:3284 200:4677 201:1014 202:7229 203:7429 204:3954
205:2097 206:2408 207:2911 208:2603 209:3623 210:2375
211:933 212:1295 213:1443 214:412 215:39 216:4006
217:1148 218:353 219:300 220:916 221:393 222:269
End of report
Report Website: http://thyme.apnic.net
