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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 21 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 208344
Prefixes after maximum aggregation: 112522
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101435
Total ASes present in the Internet Routing Table: 24170
Origin-only ASes present in the Internet Routing Table: 21052
Origin ASes announcing only one prefix: 10195
Transit ASes present in the Internet Routing Table: 3118
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: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 27
Number of addresses announced to Internet: 1660470604
Equivalent to 98 /8s, 248 /16s and 197 /24s
Percentage of available address space announced: 44.8
Percentage of allocated address space announced: 63.6
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 106605
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46454
Total APNIC prefixes after maximum aggregation: 18720
APNIC Deaggregation factor: 2.48
Prefixes being announced from the APNIC address blocks: 43911
Unique aggregates announced from the APNIC address blocks: 19166
APNIC Region origin ASes present in the Internet Routing Table: 2826
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 421
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 276314080
Equivalent to 16 /8s, 120 /16s and 55 /24s
Percentage of available APNIC address space announced: 86.4
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, 121/8, 122/7, 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: 102562
Total ARIN prefixes after maximum aggregation: 60632
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75567
Unique aggregates announced from the ARIN address blocks: 28893
ARIN Region origin ASes present in the Internet Routing Table: 11274
ARIN Region origin ASes announcing only one prefix: 4315
ARIN Region transit ASes present in the Internet Routing Table: 1039
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 313837696
Equivalent to 18 /8s, 180 /16s and 200 /24s
Percentage of available ARIN address space announced: 69.3
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: 43122
Total RIPE prefixes after maximum aggregation: 28191
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39848
Unique aggregates announced from the RIPE address blocks: 26570
RIPE Region origin ASes present in the Internet Routing Table: 9057
RIPE Region origin ASes announcing only one prefix: 4785
RIPE Region transit ASes present in the Internet Routing Table: 1463
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 286552228
Equivalent to 17 /8s, 20 /16s and 112 /24s
Percentage of available RIPE address space announced: 77.6
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, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13689
Total LACNIC prefixes after maximum aggregation: 4025
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 11678
Unique aggregates announced from the LACNIC address blocks: 7205
LACNIC Region origin ASes present in the Internet Routing Table: 759
LACNIC Region origin ASes announcing only one prefix: 248
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36309760
Equivalent to 2 /8s, 42 /16s and 11 /24s
Percentage of available LACNIC address space announced: 54.1
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: 2514
Total AfriNIC prefixes after maximum aggregation: 953
AfriNIC Deaggregation factor: 2.64
Prefixes being announced from the AfriNIC address blocks: 1778
Unique aggregates announced from the AfriNIC address blocks: 1151
AfriNIC Region origin ASes present in the Internet Routing Table: 174
AfriNIC Region origin ASes announcing only one prefix: 54
AfriNIC Region transit ASes present in the Internet Routing Table: 33
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5368576
Equivalent to 0 /8s, 81 /16s and 235 /24s
Percentage of available AfriNIC address space announced: 16.0
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 1270 8655 268 CHINANET-BACKBONE
4755 1092 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1024 99 66 Sify Limited
9498 928 467 64 BHARTI BT INTERNET LTD.
23577 774 34 702 KRNIC
4766 760 4944 312 Korea Telecom (KIX)
17488 584 36 20 Hathway IP Over Cable Interne
1221 567 1697 439 Telstra Pty Ltd
7545 564 126 74 TPG Internet Pty Ltd
18101 511 103 27 Reliance Infocom Ltd Internet
17676 503 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 434 759 68 China Telecom (Shanghai)
4802 361 86 150 Wantree Development
17974 356 129 14 PT TELEKOMUNIKASI INDONESIA
17557 353 35 171 Pakistan Telecom
17849 353 33 93 Telecommunications Technology
4837 333 4071 146 chinanet IDC center beijing n
2907 332 1749 309 SINET Japan
7474 312 212 239 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1544 6129 992 AT&T WorldNet Services
2386 1106 585 732 AT&T Data Communications Serv
4323 1065 818 298 Time Warner Telecom
6197 1022 645 500 BellSouth Network Solutions,
18566 986 272 8 Covad Communications
701 939 6692 751 UUNET Technologies, Inc.
174 934 6789 865 Cogent Communications
11492 910 99 14 Cable One
1239 825 2730 577 Sprint
19262 792 2570 184 Verizon Global Networks
20115 789 685 414 Charter Communications
7011 722 214 448 Citizens Utilities
22773 716 1744 42 Cox Communications, Inc.
209 714 3750 563 Qwest
721 708 21836 284 DLA Systems Automation Center
852 609 1093 394 Telus Advanced Communications
5668 568 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 558 250 73 Canadian Research Network
6198 550 519 256 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 547 1912 426 UUNET - Commercial IP service
3301 305 1199 287 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
24863 298 45 25 LINKdotNET AS number
8220 271 474 262 COLT Telecommunications
6746 269 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 233 2136 96 France Telecom Transpac
8708 233 283 220 Romania Data Systems S.A.
1257 216 1069 172 SWIPnet Swedish IP Network
3269 211 2375 74 TELECOM ITALIA
30890 211 18 91 SC Kappa Invexim SRL
3246 207 354 197 Song Networks
5416 205 13 13 BATELCO-BH
8551 192 193 28 Bezeq International
20858 189 34 3 This AS will be used to conne
3300 177 171 89 AUCS Communications Services
3352 177 1767 31 Ibernet, Internet Access Netw
12479 176 578 6 Uni2 Autonomous System
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 842 2014 204 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 394 108 81 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
14117 259 16 13 Telefonica del Sur S.A.
6471 256 74 31 ENTEL CHILE S.A.
7303 231 103 33 Telecom Argentina Stet-France
6147 226 180 24 Telefonica Del Peru
6503 215 170 90 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 157 21 36 INTERCABLE
7910 150 10 33 ANDINET ON LINE
23216 147 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 141 9 24 Telconet
19429 140 84 35 E.T.B.
14522 134 21 8 SatNet S.A.
7738 116 442 21 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 222 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 107 6 4 EEPAD TISP TELECOM & INTERNET
2905 85 176 74 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 60 6 2 Egyptian Universities Network
15706 54 12 4 Sudatel Internet Exchange Aut
23889 50 13 15 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
33774 38 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1092 1016 Videsh Sanchar Nigam Ltd. Aut
4134 1270 1002 CHINANET-BACKBONE
18566 986 978 Covad Communications
9583 1024 958 Sify Limited
11492 910 896 Cable One
9498 928 864 BHARTI BT INTERNET LTD.
4323 1065 767 Time Warner Telecom
22773 716 674 Cox Communications, Inc.
8151 842 638 UniNet S.A. de C.V.
19262 792 608 Verizon Global Networks
17488 584 564 Hathway IP Over Cable Interne
5668 568 549 CenturyTel Internet Holdings,
6197 1022 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 564 490 TPG Internet Pty Ltd
855 558 485 Canadian Research Network
18101 511 484 Reliance Infocom Ltd Internet
15270 498 464 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 760 448 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 203.10.62.0/24 1221 Telstra Pty Ltd
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65313 PRIVATE 203.184.140.0/24 9304 Hutchison Telecom (H
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
116.0.0.0/24 12654 RIPE NCC RIS Project
116.50.0.0/21 12654 RIPE NCC RIS Project
116.255.0.0/16 12654 RIPE NCC RIS Project
117.0.0.0/24 12654 RIPE NCC RIS Project
117.50.0.0/21 12654 RIPE NCC RIS Project
117.255.0.0/16 12654 RIPE NCC RIS Project
118.0.0.0/24 12654 RIPE NCC RIS Project
118.50.0.0/21 12654 RIPE NCC RIS Project
118.255.0.0/16 12654 RIPE NCC RIS Project
119.0.0.0/24 12654 RIPE NCC RIS Project
119.50.0.0/21 12654 RIPE NCC RIS Project
119.255.0.0/16 12654 RIPE NCC RIS Project
120.0.0.0/24 12654 RIPE NCC RIS Project
120.50.0.0/21 12654 RIPE NCC RIS Project
120.255.0.0/16 12654 RIPE NCC RIS Project
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 /8:19 /9:10 /10:13 /11:32 /12:117
/13:230 /14:412 /15:810 /16:9120 /17:3652 /18:5948
/19:12915 /20:14540 /21:12993 /22:16581 /23:17823 /24:111418
/25:646 /26:464 /27:374 /28:66 /29:39 /30:89
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 969 986 Covad Communications
11492 896 910 Cable One
9583 853 1024 Sify Limited
7018 848 1544 AT&T WorldNet Services
2386 829 1106 AT&T Data Communications Serv
6197 795 1022 BellSouth Network Solutions,
23577 760 774 KRNIC
7011 626 722 Citizens Utilities
9498 586 928 BHARTI BT INTERNET LTD.
4766 569 760 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 500 1092 Videsh Sanchar Nigam Ltd. Aut
15270 466 498 PaeTec.net -a division of Pae
855 456 558 Canadian Research Network
18101 444 511 Reliance Infocom Ltd Internet
5668 437 568 CenturyTel Internet Holdings,
1239 410 825 Sprint
17488 407 584 Hathway IP Over Cable Interne
33588 400 422 Bresnan Communications, LLC.
6198 389 550 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:62 9:1 12:1659 13:1
15:15 16:3 17:3 18:5 20:36 24:871
25:1 32:55 38:276 40:56 41:61 44:2
47:10 52:4 55:1 56:3 57:24 58:295
59:375 60:199 61:951 62:1037 63:1902 64:3183
65:2305 66:3131 67:708 68:640 69:1723 70:415
71:133 72:1139 73:1 74:138 75:61 76:20
80:820 81:778 82:643 83:346 84:495 85:798
86:434 87:460 88:269 89:750 90:2 91:139
97:1 116:1 117:1 118:1 119:1 120:1
121:128 122:70 123:25 124:551 125:771 128:307
129:219 130:112 131:298 132:49 133:9 134:183
135:44 136:180 137:113 138:184 139:54 140:520
141:135 142:365 143:208 144:266 145:67 146:321
147:138 148:362 149:189 150:114 151:118 152:90
153:119 154:5 155:244 156:166 157:168 158:168
159:147 160:98 161:101 162:227 163:162 164:452
165:284 166:244 167:281 168:492 169:121 170:378
171:15 172:1 189:73 190:352 192:5718 193:3638
194:2913 195:2205 196:920 198:3777 199:3249 200:4605
201:955 202:7135 203:7286 204:3952 205:2093 206:2401
207:2892 208:2402 209:3562 210:2318 211:881 212:1307
213:1422 214:391 215:39 216:4100 217:1179 218:356
219:267 220:854 221:369 222:289
End of report
Report Website: http://thyme.apnic.net
