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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 27 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 213508
Prefixes after maximum aggregation: 114499
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 103927
Total ASes present in the Internet Routing Table: 24485
Origin-only ASes present in the Internet Routing Table: 21315
Origin ASes announcing only one prefix: 10302
Transit ASes present in the Internet Routing Table: 3170
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1686571276
Equivalent to 100 /8s, 135 /16s and 9 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 110433
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 48530
Total APNIC prefixes after maximum aggregation: 19473
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 45635
Unique aggregates announced from the APNIC address blocks: 20532
APNIC Region origin ASes present in the Internet Routing Table: 2889
APNIC Region origin ASes announcing only one prefix: 790
APNIC Region transit ASes present in the Internet Routing Table: 429
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 290481024
Equivalent to 17 /8s, 80 /16s and 99 /24s
Percentage of available APNIC address space announced: 72.0
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: 104181
Total ARIN prefixes after maximum aggregation: 61244
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 76211
Unique aggregates announced from the ARIN address blocks: 29540
ARIN Region origin ASes present in the Internet Routing Table: 11367
ARIN Region origin ASes announcing only one prefix: 4364
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: 319036800
Equivalent to 19 /8s, 4 /16s and 29 /24s
Percentage of available ARIN address space announced: 70.4
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: 44126
Total RIPE prefixes after maximum aggregation: 28760
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40807
Unique aggregates announced from the RIPE address blocks: 27154
RIPE Region origin ASes present in the Internet Routing Table: 9207
RIPE Region origin ASes announcing only one prefix: 4841
RIPE Region transit ASes present in the Internet Routing Table: 1490
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 291795460
Equivalent to 17 /8s, 100 /16s and 114 /24s
Percentage of available RIPE address space announced: 79.1
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
40960-43007
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: 14105
Total LACNIC prefixes after maximum aggregation: 4059
LACNIC Deaggregation factor: 3.47
Prefixes being announced from the LACNIC address blocks: 12176
Unique aggregates announced from the LACNIC address blocks: 7020
LACNIC Region origin ASes present in the Internet Routing Table: 764
LACNIC Region origin ASes announcing only one prefix: 248
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37696256
Equivalent to 2 /8s, 63 /16s and 51 /24s
Percentage of available LACNIC address space announced: 56.2
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: 2563
Total AfriNIC prefixes after maximum aggregation: 961
AfriNIC Deaggregation factor: 2.67
Prefixes being announced from the AfriNIC address blocks: 1888
Unique aggregates announced from the AfriNIC address blocks: 1179
AfriNIC Region origin ASes present in the Internet Routing Table: 178
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5406976
Equivalent to 0 /8s, 82 /16s and 129 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1274 8718 276 CHINANET-BACKBONE
4755 1128 383 77 Videsh Sanchar Nigam Ltd. Aut
9498 1099 468 66 BHARTI BT INTERNET LTD.
9583 1075 77 371 Sify Limited
23577 780 35 708 Korea Telecom (ATM-MPLS)
4766 768 4942 309 Korea Telecom (KIX)
17488 602 40 25 Hathway IP Over Cable Interne
7545 590 142 77 TPG Internet Pty Ltd
1221 582 1687 444 Telstra Pty Ltd
18101 529 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4812 500 779 73 China Telecom (Shanghai)
4668 454 68 10 LG-EDS Systems Inc.
9443 443 111 74 Primus Telecommunications
7474 381 216 259 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 360 86 149 Wantree Development
17557 350 34 171 Pakistan Telecom
17974 338 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6125 984 AT&T WorldNet Services
4323 1334 1005 351 Time Warner Telecom
6478 1124 443 194 AT&T Worldnet Services
2386 1113 570 738 AT&T Data Communications Serv
6197 1024 667 499 BellSouth Network Solutions,
18566 992 288 9 Covad Communications
11492 981 101 16 Cable One
174 945 6792 869 Cogent Communications
701 941 6697 748 UUNET Technologies, Inc.
1239 814 2713 571 Sprint
20115 802 706 422 Charter Communications
7011 800 229 476 Citizens Utilities
19262 757 2591 178 Verizon Global Networks
22773 732 1872 41 Cox Communications, Inc.
209 712 3743 569 Qwest
721 633 21787 274 DLA Systems Automation Center
852 594 1088 380 Telus Advanced Communications
5668 572 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 566 250 70 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 539 1879 417 UUNET - Commercial IP service
24863 328 45 22 LINKdotNET AS number
3301 312 1199 291 TeliaNet Sweden
3320 299 4994 250 Deutsche Telekom AG
8220 271 469 262 COLT Telecommunications
6746 269 95 248 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
5416 252 16 16 BATELCO-BH
8708 242 284 228 Romania Data Systems S.A.
3215 239 2224 92 France Telecom Transpac
1257 221 1112 170 SWIPnet Swedish IP Network
3269 213 2423 71 TELECOM ITALIA
3246 208 355 197 Song Networks
30890 206 17 97 SC Kappa Invexim SRL
8551 204 196 28 Bezeq International
3352 201 1783 33 Ibernet, Internet Access Netw
20858 197 34 3 EgyNet
3300 182 171 89 AUCS Communications Services
12479 177 578 6 Uni2 Autonomous System
786 173 1779 173 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1043 2038 211 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 348 109 85 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 253 74 30 ENTEL CHILE S.A.
7303 251 142 30 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 228 180 24 Telefonica Del Peru
6503 200 172 83 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 174 25 25 NEWCOM AMERICAS
21826 156 27 56 INTERCABLE
23216 153 19 42 RAMtelecom Telecomunicaciones
7910 152 11 32 ANDINET ON LINE
19429 146 91 37 E.T.B.
18822 145 9 10 TELEFONICA MANQUEHUE
19169 143 9 25 Telconet
14522 136 22 9 SatNet 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 245 60 6 TEDATA
15475 155 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
2905 121 178 94 The Internetworking Company o
33783 111 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2561 64 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 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
12455 27 6 3 Jambonet Autonomous system
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1128 1051 Videsh Sanchar Nigam Ltd. Aut
9498 1099 1033 BHARTI BT INTERNET LTD.
4134 1274 998 CHINANET-BACKBONE
4323 1334 983 Time Warner Telecom
18566 992 983 Covad Communications
11492 981 965 Cable One
6478 1124 930 AT&T Worldnet Services
8151 1043 832 UniNet S.A. de C.V.
9583 1075 704 Sify Limited
22773 732 691 Cox Communications, Inc.
19262 757 579 Verizon Global Networks
17488 602 577 Hathway IP Over Cable Interne
5668 572 556 CenturyTel Internet Holdings,
6197 1024 525 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 590 513 TPG Internet Pty Ltd
18101 529 506 Reliance Infocom Ltd Internet
855 566 496 Canadian Research Network
15270 507 473 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
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
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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 /8:20 /9:9 /10:12 /11:33 /12:117
/13:226 /14:426 /15:822 /16:9252 /17:3754 /18:6181
/19:13199 /20:14893 /21:13438 /22:17262 /23:18552 /24:113364
/25:721 /26:539 /27:438 /28:67 /29:42 /30:105
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1076 1124 AT&T Worldnet Services
18566 974 992 Covad Communications
11492 967 981 Cable One
9583 911 1075 Sify Limited
2386 838 1113 AT&T Data Communications Serv
7018 807 1496 AT&T WorldNet Services
6197 796 1024 BellSouth Network Solutions,
23577 766 780 Korea Telecom (ATM-MPLS)
9498 747 1099 BHARTI BT INTERNET LTD.
7011 699 800 Citizens Utilities
4766 577 768 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 533 1128 Videsh Sanchar Nigam Ltd. Aut
4323 529 1334 Time Warner Telecom
15270 475 507 PaeTec.net -a division of Pae
855 465 566 Canadian Research Network
18101 460 529 Reliance Infocom Ltd Internet
4668 445 454 LG-EDS Systems Inc.
5668 442 572 CenturyTel Internet Holdings,
17488 424 602 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:63 9:1 12:1802 13:1
15:16 16:3 17:3 18:5 20:36 24:903
25:1 32:53 38:282 40:57 41:93 44:2
47:7 52:4 55:1 56:3 57:25 58:308
59:391 60:214 61:940 62:1028 63:1918 64:3153
65:2324 66:3145 67:736 68:652 69:1729 70:456
71:98 72:1221 73:1 74:179 75:81 76:5
77:67 80:833 81:777 82:658 83:363 84:504
85:731 86:443 87:493 88:245 89:809 90:3
91:210 97:1 116:1 117:1 118:1 119:1
120:1 121:140 122:344 123:50 124:626 125:852
128:306 129:209 130:125 131:348 132:50 133:10
134:188 135:38 136:181 137:92 138:195 139:52
140:498 141:142 142:371 143:211 144:270 145:43
146:314 147:147 148:377 149:186 150:114 151:116
152:94 153:118 154:5 155:251 156:152 157:174
158:169 159:151 160:99 161:88 162:231 163:162
164:451 165:380 166:245 167:280 168:511 169:119
170:380 171:15 172:1 189:196 190:421 192:5741
193:3731 194:3000 195:2205 196:958 198:3740 199:3270
200:4646 201:986 202:7175 203:7376 204:3970 205:2061
206:2408 207:2852 208:2482 209:3588 210:2380 211:928
212:1294 213:1418 214:411 215:39 216:4036 217:1174
218:350 219:270 220:857 221:374 222:264
End of report
Report Website: http://thyme.apnic.net
