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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 06 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/06/0400
Analysis Summary
----------------
BGP routing table entries examined: 222275
Prefixes after maximum aggregation: 117783
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 106878
Total ASes present in the Internet Routing Table: 25353
Prefixes per ASN: 8.77
Origin-only ASes present in the Internet Routing Table: 22063
Origin ASes announcing only one prefix: 10707
Transit ASes present in the Internet Routing Table: 3290
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 7
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: 12
Number of addresses announced to Internet: 1730324832
Equivalent to 103 /8s, 34 /16s and 169 /24s
Percentage of available address space announced: 46.7
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116641
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51318
Total APNIC prefixes after maximum aggregation: 20008
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 48276
Unique aggregates announced from the APNIC address blocks: 20340
APNIC Region origin ASes present in the Internet Routing Table: 2959
APNIC Prefixes per ASN: 16.31
APNIC Region origin ASes announcing only one prefix: 790
APNIC Region transit ASes present in the Internet Routing Table: 451
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 298009504
Equivalent to 17 /8s, 195 /16s and 67 /24s
Percentage of available APNIC address space announced: 73.8
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: 106898
Total ARIN prefixes after maximum aggregation: 62272
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78848
Unique aggregates announced from the ARIN address blocks: 30857
ARIN Region origin ASes present in the Internet Routing Table: 11608
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4473
ARIN Region transit ASes present in the Internet Routing Table: 1063
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 334864512
Equivalent to 19 /8s, 245 /16s and 160 /24s
Percentage of available ARIN address space announced: 73.9
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: 46400
Total RIPE prefixes after maximum aggregation: 30279
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42912
Unique aggregates announced from the RIPE address blocks: 28561
RIPE Region origin ASes present in the Internet Routing Table: 9715
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5133
RIPE Region transit ASes present in the Internet Routing Table: 1569
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 310282496
Equivalent to 18 /8s, 126 /16s and 137 /24s
Percentage of available RIPE address space announced: 77.1
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: 15079
Total LACNIC prefixes after maximum aggregation: 4210
LACNIC Deaggregation factor: 3.58
Prefixes being announced from the LACNIC address blocks: 13207
Unique aggregates announced from the LACNIC address blocks: 7312
LACNIC Region origin ASes present in the Internet Routing Table: 800
LACNIC Prefixes per ASN: 16.51
LACNIC Region origin ASes announcing only one prefix: 256
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: 39241728
Equivalent to 2 /8s, 86 /16s and 200 /24s
Percentage of available LACNIC address space announced: 58.5
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: 2571
Total AfriNIC prefixes after maximum aggregation: 1004
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1961
Unique aggregates announced from the AfriNIC address blocks: 1188
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.38
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 6157056
Equivalent to 0 /8s, 93 /16s and 243 /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 1289 9975 279 CHINANET-BACKBONE
4755 1231 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1111 108 18 Sify Limited
9498 996 469 68 BHARTI BT INTERNET LTD.
4766 786 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 698 45 39 Hathway IP Over Cable Interne
7545 621 140 80 TPG Internet Pty Ltd
18101 554 117 35 Reliance Infocom Ltd Internet
1221 550 1954 424 Telstra Pty Ltd
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 465 121 77 Primus Telecommunications
4812 463 837 77 China Telecom (Shanghai)
7474 410 218 269 SingTel Optus Pty Ltd
4802 406 86 145 Wantree Development
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 302 SINET Japan
17557 354 40 169 Pakistan Telecom
4837 346 4805 160 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6144 991 AT&T WorldNet Services
4323 1275 1033 367 Time Warner Telecom
2386 1147 596 756 AT&T Data Communications Serv
6478 1105 362 125 AT&T Worldnet Services
11492 1073 104 24 Cable One
6197 1039 707 511 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 958 6615 734 UUNET Technologies, Inc.
174 956 6777 867 Cogent Communications
1239 815 2731 578 Sprint
20115 807 725 429 Charter Communications
7011 806 229 482 Citizens Utilities
19262 774 2694 206 Verizon Global Networks
209 741 3834 577 Qwest
22773 716 1892 44 Cox Communications, Inc.
5668 603 160 17 CenturyTel Internet Holdings,
7385 602 169 469 Linkport Communications
7029 596 488 80 Alltel Information Services,
852 589 1090 371 Telus Advanced Communications
855 568 253 71 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 517 1939 408 UUNET - Commercial IP service
2119 509 918 381 Telenor Internet Access
24863 349 56 34 LINKdotNET AS number
3301 311 1455 290 TeliaNet Sweden
3320 304 4994 254 Deutsche Telekom AG
6746 279 128 255 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
3215 248 2296 95 France Telecom Transpac
8220 248 444 240 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
5089 221 1658 53 NTL Group Limited
3269 215 2631 73 TELECOM ITALIA
3352 212 1863 36 Ibernet, Internet Access Netw
9121 209 1441 24 TTnet Autonomous System
8551 207 197 27 Bezeq International
9116 199 136 25 Goldenlines main autonomous s
3246 197 331 187 Song Networks
1257 196 1196 174 SWIPnet Swedish IP Network
12479 188 578 6 Uni2 Autonomous System
30890 184 15 92 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 907 1855 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 367 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 316 238 12 VTR PUNTO NET S.A.
7303 288 143 29 Telecom Argentina Stet-France
6471 268 74 32 ENTEL CHILE S.A.
14117 244 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 224 168 25 Telefonica Del Peru
6503 212 188 84 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 187 53 25 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 156 27 60 INTERCABLE
19429 155 95 44 E.T.B.
7738 146 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 866 219 The Internet Solution
8452 229 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 136 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 37 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
33776 30 2 7 Starcomms Nigeria Limited
21280 27 4 4 Swift Global Kenya Ltd.Is an
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 1231 1160 Videsh Sanchar Nigam Ltd. Aut
9583 1111 1093 Sify Limited
11492 1073 1049 Cable One
4134 1289 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1105 980 AT&T Worldnet Services
9498 996 928 BHARTI BT INTERNET LTD.
4323 1275 908 Time Warner Telecom
8151 907 697 UniNet S.A. de C.V.
22773 716 672 Cox Communications, Inc.
17488 698 659 Hathway IP Over Cable Interne
5668 603 586 CenturyTel Internet Holdings,
19262 774 568 Verizon Global Networks
7545 621 541 TPG Internet Pty Ltd
6197 1039 528 BellSouth Network Solutions,
18101 554 519 Reliance Infocom Ltd Internet
19916 568 517 OLM LLC
7029 596 516 Alltel Information Services,
15270 544 509 PaeTec.net -a division of Pae
855 568 497 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
65001 PRIVATE 82.213.31.0/24 12975 PALTEL Autonomous Sy
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
94.110.196.0/24 21161 Bechtle Autonomous System
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 /12:124
/13:239 /14:453 /15:876 /16:9437 /17:3983 /18:6386
/19:13519 /20:15538 /21:14108 /22:18379 /23:19532 /24:117401
/25:798 /26:846 /27:477 /28:68 /29:10 /30:12
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1095 1105 AT&T Worldnet Services
11492 1064 1073 Cable One
18566 992 1010 Covad Communications
9583 941 1111 Sify Limited
2386 850 1147 AT&T Data Communications Serv
7018 809 1500 AT&T WorldNet Services
6197 793 1039 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 707 806 Citizens Utilities
9498 665 996 BHARTI BT INTERNET LTD.
4755 625 1231 Videsh Sanchar Nigam Ltd. Aut
4766 593 786 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 523 1275 Time Warner Telecom
17488 519 698 Hathway IP Over Cable Interne
15270 511 544 PaeTec.net -a division of Pae
4668 497 507 LG-EDS Systems Inc.
18101 470 554 Reliance Infocom Ltd Internet
5668 468 603 CenturyTel Internet Holdings,
855 466 568 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:79 9:1 12:1806 15:19
16:3 17:3 18:8 20:38 24:946 25:1
32:51 33:2 38:319 40:61 41:151 44:2
47:5 52:4 55:3 56:3 57:24 58:418
59:403 60:301 61:967 62:918 63:1978 64:3124
65:2363 66:3299 67:813 68:632 69:1879 70:516
71:107 72:1326 73:1 74:490 75:260 76:76
77:217 78:2 80:821 81:810 82:648 83:387
84:404 85:809 86:345 87:469 88:276 89:881
90:7 91:339 94:1 97:6 98:3 116:106
121:160 122:536 123:107 124:815 125:944 128:281
129:223 130:135 131:367 132:52 133:9 134:192
135:38 136:179 137:77 138:140 139:70 140:388
141:171 142:370 143:233 144:291 145:43 146:320
147:120 148:396 149:143 150:115 151:159 152:92
153:123 154:4 155:254 156:152 157:186 158:158
159:157 160:107 161:92 162:233 163:185 164:446
165:395 166:240 167:284 168:501 169:120 170:401
171:15 172:1 189:140 190:641 192:5774 193:3873
194:3138 195:2240 196:912 198:3752 199:3289 200:4877
201:1042 202:7313 203:7512 204:3970 205:2033 206:2355
207:2871 208:2706 209:3581 210:2469 211:967 212:1315
213:1473 214:414 215:40 216:4039 217:1143 218:354
219:380 220:963 221:401 222:263
End of report
