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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 18 Jan, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 243346
Prefixes after maximum aggregation: 124398
Deaggregation factor: 1.96
Unique aggregates announced to Internet: 118891
Total ASes present in the Internet Routing Table: 27107
Prefixes per ASN: 8.98
Origin-only ASes present in the Internet Routing Table: 23610
Origin ASes announcing only one prefix: 11475
Transit ASes present in the Internet Routing Table: 3497
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (29642) 15
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 9
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1802930720
Equivalent to 107 /8s, 118 /16s and 138 /24s
Percentage of available address space announced: 48.6
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 114628
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 56047
Total APNIC prefixes after maximum aggregation: 21088
APNIC Deaggregation factor: 2.66
Prefixes being announced from the APNIC address blocks: 53557
Unique aggregates announced from the APNIC address blocks: 23930
APNIC Region origin ASes present in the Internet Routing Table: 3100
APNIC Prefixes per ASN: 17.28
APNIC Region origin ASes announcing only one prefix: 810
APNIC Region transit ASes present in the Internet Routing Table: 463
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 325582240
Equivalent to 19 /8s, 103 /16s and 253 /24s
Percentage of available APNIC address space announced: 74.5
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, 114/7, 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: 114624
Total ARIN prefixes after maximum aggregation: 65253
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 83591
Unique aggregates announced from the ARIN address blocks: 33245
ARIN Region origin ASes present in the Internet Routing Table: 12068
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4652
ARIN Region transit ASes present in the Internet Routing Table: 1147
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 357657280
Equivalent to 21 /8s, 81 /16s and 106 /24s
Percentage of available ARIN address space announced: 79.0
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: 50875
Total RIPE prefixes after maximum aggregation: 32305
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 48202
Unique aggregates announced from the RIPE address blocks: 32073
RIPE Region origin ASes present in the Internet Routing Table: 10751
RIPE Prefixes per ASN: 4.48
RIPE Region origin ASes announcing only one prefix: 5658
RIPE Region transit ASes present in the Internet Routing Table: 1663
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 340402944
Equivalent to 20 /8s, 74 /16s and 35 /24s
Percentage of available RIPE address space announced: 78.0
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 18415
Total LACNIC prefixes after maximum aggregation: 4622
LACNIC Deaggregation factor: 3.98
Prefixes being announced from the LACNIC address blocks: 16615
Unique aggregates announced from the LACNIC address blocks: 9018
LACNIC Region origin ASes present in the Internet Routing Table: 895
LACNIC Prefixes per ASN: 18.56
LACNIC Region origin ASes announcing only one prefix: 286
LACNIC Region transit ASes present in the Internet Routing Table: 152
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 47265280
Equivalent to 2 /8s, 209 /16s and 54 /24s
Percentage of available LACNIC address space announced: 47.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3370
Total AfriNIC prefixes after maximum aggregation: 1112
AfriNIC Deaggregation factor: 3.03
Prefixes being announced from the AfriNIC address blocks: 2519
Unique aggregates announced from the AfriNIC address blocks: 1461
AfriNIC Region origin ASes present in the Internet Routing Table: 218
AfriNIC Prefixes per ASN: 11.56
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 39
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8254464
Equivalent to 0 /8s, 125 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 24.6
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
4755 1543 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1115 82 437 Sify Limited
9498 1101 549 61 BHARTI BT INTERNET LTD.
17488 960 62 87 Hathway IP Over Cable Interne
4134 861 11625 307 CHINANET-BACKBONE
4766 839 5494 340 Korea Telecom (KIX)
23577 817 34 695 Korea Telecom (ATM-MPLS)
18101 608 121 60 Reliance Infocom Ltd Internet
4780 591 308 43 Digital United Inc.
9829 590 449 11 BSNL National Internet Backbo
1221 541 1952 417 Telstra Pty Ltd
4812 531 934 86 China Telecom (Shanghai)
4808 530 821 125 CNCGROUP IP network: China169
4668 520 68 10 LG-EDS Systems Inc.
17676 506 10919 64 Softbank BB Corp.
7545 487 147 93 TPG Internet Pty Ltd
4802 470 128 151 Wantree Development
9443 437 121 71 Primus Telecommunications
17974 400 145 17 PT TELEKOMUNIKASI INDONESIA
7474 385 202 271 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1460 6072 996 AT&T WorldNet Services
4323 1389 1010 364 Time Warner Telecom
2386 1359 668 829 AT&T Data Communications Serv
11492 1208 134 16 Cable One
6478 1097 330 127 AT&T Worldnet Services
18566 1039 296 10 Covad Communications
7011 1008 297 593 Citizens Utilities
174 969 6834 812 Cogent Communications
6197 968 697 502 BellSouth Network Solutions,
701 895 6559 690 UUNET Technologies, Inc.
19262 872 3215 155 Verizon Global Networks
20115 864 794 470 Charter Communications
22773 840 2139 58 Cox Communications, Inc.
3356 834 10907 411 Level 3 Communications, LLC
1239 794 2673 552 Sprint
209 746 3910 599 Qwest
5668 668 177 21 CenturyTel Internet Holdings,
6140 616 110 152 ImpSat
6517 609 150 41 Yipes Communications, Inc.
15270 603 161 56 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 402 1651 367 TDC Tele Danmark
3301 330 1458 301 TeliaNet Sweden
3320 318 6019 264 Deutsche Telekom AG
8452 289 188 7 TEDATA
8551 277 267 41 Bezeq International
8866 276 78 24 Bulgarian Telecommunication C
6746 272 128 250 Dynamic Network Technologies,
680 270 2046 255 DFN-IP service G-WiN
3215 270 2583 92 France Telecom Transpac
8708 270 420 241 Romania Data Systems S.A.
8220 250 422 227 COLT Telecommunications
3352 241 1948 40 Ibernet, Internet Access Netw
3269 231 3037 68 TELECOM ITALIA
5462 229 666 27 Telewest Broadband
9155 215 43 10 QualityNet AS number
3300 211 172 100 AUCS Communications Services
9121 209 1444 25 TTnet Autonomous System
29357 199 17 4 WATANIYA TELECOM
1257 197 1196 180 SWIPnet Swedish IP Network
2856 195 2306 161 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1150 2390 218 UniNet S.A. de C.V.
11830 547 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
7303 421 205 54 Telecom Argentina Stet-France
11172 396 115 62 Servicios Alestra S.A de C.V
6471 385 85 39 ENTEL CHILE S.A.
14117 351 23 16 Telefonica del Sur S.A.
10620 350 92 25 TVCABLE BOGOTA
22047 322 254 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
6147 255 214 21 Telefonica Del Peru
7738 239 602 25 Telecomunicacoes da Bahia S.A
11556 236 128 4 Cable-Wireless Panama
20299 236 33 29 NEWCOM AMERICAS
28573 227 322 23 NET Servicos de Comunicao S.A
23216 225 17 47 RAMtelecom Telecomunicaciones
6503 220 180 85 AVANTEL, S.A.
10834 193 76 40 ADVANCE TELECOMUNICACIONES S.
19169 193 12 20 Telconet
21826 187 33 48 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 408 60 31 LINKdotNET AS number
3741 279 869 225 The Internet Solution
20858 202 34 3 EgyNet
6713 145 135 11 Itissalat Al-MAGHRIB
2018 142 268 114 Tertiary Education Network
33783 127 9 20 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 99 6 7 Starcomms Nigeria Limited
15475 88 84 4 Nile Online
24835 88 48 6 RAYA Telecom - Egypt
29571 77 13 7 Ci Telecom Autonomous system
2905 76 174 73 The Internetworking Company o
23889 76 24 16 MAURITIUS TELECOM
20484 71 5 4 Yalla Online Autonomous Syste
15706 57 12 4 Sudatel Internet Exchange Aut
5713 50 455 40 Telkom SA Ltd
33774 50 37 28 AS Number for Telecom Algeria
16637 47 21 28 Johnnic e-Ventures
8524 33 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
11492 1208 1192 Cable One
9498 1101 1040 BHARTI BT INTERNET LTD.
18566 1039 1029 Covad Communications
4323 1389 1025 Time Warner Telecom
6478 1097 970 AT&T Worldnet Services
8151 1150 932 UniNet S.A. de C.V.
17488 960 873 Hathway IP Over Cable Interne
22773 840 782 Cox Communications, Inc.
19262 872 717 Verizon Global Networks
9583 1115 678 Sify Limited
5668 668 647 CenturyTel Internet Holdings,
9829 590 579 BSNL National Internet Backbo
6517 609 568 Yipes Communications, Inc.
4134 861 554 CHINANET-BACKBONE
18101 608 548 Reliance Infocom Ltd Internet
4780 591 548 Digital United Inc.
15270 603 547 PaeTec.net -a division of Pae
11830 547 538 Instituto Costarricense de El
2386 1359 530 AT&T Data Communications Serv
19916 563 521 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
18506 UNALLOCATED 63.107.123.0/24 33286 Turlock Irrigation D
33526 UNALLOCATED 64.128.26.0/24 4323 Time Warner Telecom
65364 PRIVATE 190.144.163.0/24 14080 FIRSTCOM COLOMBIA
65389 PRIVATE 190.144.166.0/24 14080 FIRSTCOM COLOMBIA
65394 PRIVATE 190.144.167.0/24 14080 FIRSTCOM COLOMBIA
65403 PRIVATE 190.144.168.0/24 14080 FIRSTCOM COLOMBIA
65375 PRIVATE 190.144.175.0/24 14080 FIRSTCOM COLOMBIA
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.31.31.0/24 9730 The Best ISP to go Multimedia
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
173.173.173.0/24 9730 The Best ISP to go Multimedia
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 /10:15 /11:40 /12:134
/13:271 /14:490 /15:971 /16:9738 /17:4213 /18:6942
/19:14878 /20:17114 /21:16169 /22:20379 /23:21526 /24:127774
/25:876 /26:1106 /27:557 /28:108 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1198 1208 Cable One
6478 1096 1097 AT&T Worldnet Services
2386 1053 1359 AT&T Data Communications Serv
18566 1020 1039 Covad Communications
9583 960 1115 Sify Limited
4755 906 1543 Videsh Sanchar Nigam Ltd. Aut
7011 893 1008 Citizens Utilities
23577 808 817 Korea Telecom (ATM-MPLS)
7018 798 1460 AT&T WorldNet Services
17488 775 960 Hathway IP Over Cable Interne
9498 773 1101 BHARTI BT INTERNET LTD.
6197 728 968 BellSouth Network Solutions,
4766 622 839 Korea Telecom (KIX)
4323 594 1389 Time Warner Telecom
6517 572 609 Yipes Communications, Inc.
15270 562 603 PaeTec.net -a division of Pae
19916 558 563 OLM LLC
5668 524 668 CenturyTel Internet Holdings,
4668 510 520 LG-EDS Systems Inc.
18101 502 608 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:98 12:1942 13:2 15:21 16:3
17:6 18:14 20:35 24:1008 25:1 31:1
32:61 33:4 38:380 40:65 41:453 44:2
47:8 52:3 55:3 56:3 57:22 58:505
59:416 60:407 61:979 62:1055 63:1978 64:3333
65:2375 66:3614 67:1059 68:635 69:2088 70:466
71:105 72:1457 73:7 74:784 75:174 76:183
77:474 78:446 79:66 80:888 81:786 82:574
83:351 84:523 85:921 86:372 87:591 88:291
89:1086 90:41 91:917 92:67 93:18 96:3
97:7 98:31 114:1 115:1 116:490 117:241
118:60 119:91 121:396 122:672 123:255 124:771
125:1068 128:309 129:199 130:125 131:390 132:68
133:9 134:187 135:31 136:215 137:97 138:156
139:90 140:497 141:106 142:377 143:263 144:307
145:51 146:331 147:127 148:482 149:188 150:115
151:132 152:95 153:127 154:11 155:280 156:196
157:249 158:164 159:209 160:208 161:95 162:199
163:186 164:563 165:421 166:291 167:311 168:570
169:132 170:426 171:28 172:3 173:1 189:142
190:1350 192:5756 193:4063 194:3249 195:2319 196:957
198:3806 199:3213 200:5441 201:1284 202:7501 203:7900
204:3960 205:2057 206:2424 207:2746 208:3104 209:3615
210:2653 211:1136 212:1293 213:1611 214:440 215:46
216:4142 217:1236 218:332 219:406 220:1006 221:410
222:296
End of report
