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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 13 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/13/0400
Analysis Summary
----------------
BGP routing table entries examined: 219787
Prefixes after maximum aggregation: 117163
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 106798
Total ASes present in the Internet Routing Table: 25151
Prefixes per ASN: 8.74
Origin-only ASes present in the Internet Routing Table: 21904
Origin ASes announcing only one prefix: 10596
Transit ASes present in the Internet Routing Table: 3247
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (15941) 12
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 8
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: 11
Number of addresses announced to Internet: 1717769152
Equivalent to 102 /8s, 99 /16s and 19 /24s
Percentage of available address space announced: 46.3
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 115081
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50568
Total APNIC prefixes after maximum aggregation: 20238
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47620
Unique aggregates announced from the APNIC address blocks: 21255
APNIC Region origin ASes present in the Internet Routing Table: 2941
APNIC Prefixes per ASN: 16.19
APNIC Region origin ASes announcing only one prefix: 790
APNIC Region transit ASes present in the Internet Routing Table: 437
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 292877504
Equivalent to 17 /8s, 116 /16s and 244 /24s
Percentage of available APNIC address space announced: 72.5
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, 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: 106210
Total ARIN prefixes after maximum aggregation: 62011
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78312
Unique aggregates announced from the ARIN address blocks: 30529
ARIN Region origin ASes present in the Internet Routing Table: 11556
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4423
ARIN Region transit ASes present in the Internet Routing Table: 1053
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 332158336
Equivalent to 19 /8s, 204 /16s and 85 /24s
Percentage of available ARIN address space announced: 73.3
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: 45505
Total RIPE prefixes after maximum aggregation: 29772
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42038
Unique aggregates announced from the RIPE address blocks: 28085
RIPE Region origin ASes present in the Internet Routing Table: 9600
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5073
RIPE Region transit ASes present in the Internet Routing Table: 1548
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 305966464
Equivalent to 18 /8s, 60 /16s and 173 /24s
Percentage of available RIPE address space announced: 76.0
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
40960-44031
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: 14931
Total LACNIC prefixes after maximum aggregation: 4120
LACNIC Deaggregation factor: 3.62
Prefixes being announced from the LACNIC address blocks: 13031
Unique aggregates announced from the LACNIC address blocks: 7193
LACNIC Region origin ASes present in the Internet Routing Table: 786
LACNIC Prefixes per ASN: 16.58
LACNIC Region origin ASes announcing only one prefix: 253
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 38751744
Equivalent to 2 /8s, 79 /16s and 78 /24s
Percentage of available LACNIC address space announced: 57.7
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: 2561
Total AfriNIC prefixes after maximum aggregation: 1012
AfriNIC Deaggregation factor: 2.53
Prefixes being announced from the AfriNIC address blocks: 1926
Unique aggregates announced from the AfriNIC address blocks: 1196
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.19
AfriNIC Region origin ASes announcing only one prefix: 57
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6038784
Equivalent to 0 /8s, 92 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 18.0
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 1283 9605 275 CHINANET-BACKBONE
4755 1213 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1108 79 382 Sify Limited
9498 977 469 72 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 776 35 705 Korea Telecom (ATM-MPLS)
17488 676 44 35 Hathway IP Over Cable Interne
7545 627 142 79 TPG Internet Pty Ltd
1221 543 1954 422 Telstra Pty Ltd
18101 536 116 28 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 460 807 76 China Telecom (Shanghai)
9443 452 115 74 Primus Telecommunications
7474 414 218 270 SingTel Optus Pty Ltd
4802 360 86 148 Wantree Development
17557 356 37 169 Pakistan Telecom
17974 350 129 12 PT TELEKOMUNIKASI INDONESIA
4837 344 4709 159 chinanet IDC center beijing n
4808 331 669 112 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6144 994 AT&T WorldNet Services
4323 1265 1027 360 Time Warner Telecom
2386 1129 580 749 AT&T Data Communications Serv
6478 1094 339 133 AT&T Worldnet Services
11492 1047 104 22 Cable One
6197 1035 688 503 BellSouth Network Solutions,
18566 1006 288 9 Covad Communications
174 967 6792 875 Cogent Communications
701 961 6661 733 UUNET Technologies, Inc.
20115 818 742 428 Charter Communications
1239 815 2715 576 Sprint
7011 790 226 472 Citizens Utilities
19262 774 2620 209 Verizon Global Networks
209 729 3847 583 Qwest
22773 714 1888 43 Cox Communications, Inc.
5668 601 160 17 CenturyTel Internet Holdings,
852 589 1096 370 Telus Advanced Communications
7029 586 456 79 Alltel Information Services,
721 575 21755 269 DLA Systems Automation Center
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 521 1941 414 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 277 128 254 Dynamic Network Technologies,
680 256 2042 249 DFN-IP service G-WiN
8220 248 459 239 COLT Telecommunications
3215 238 2254 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 216 2647 74 TELECOM ITALIA
3246 208 340 198 Song Networks
8551 206 196 30 Bezeq International
3352 203 1783 37 Ibernet, Internet Access Netw
30890 202 17 94 SC Kappa Invexim SRL
20858 196 34 4 EgyNet
9116 194 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
3300 184 171 90 AUCS Communications Services
12479 183 578 6 Uni2 Autonomous System
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1208 1870 213 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 365 116 63 Servicios Alestra S.A de C.V
22047 318 238 12 VTR PUNTO NET S.A.
7303 280 143 29 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
16814 252 22 8 NSS, S.A.
14117 243 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 221 166 25 Telefonica Del Peru
6503 214 172 86 AVANTEL, S.A.
20299 190 23 12 NEWCOM AMERICAS
10620 186 53 24 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
14522 155 25 7 SatNet S.A.
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 152 93 42 E.T.B.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 230 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 Tertiary Education Network
15475 129 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 76 174 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 43 13 24 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 28 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 1213 1141 Videsh Sanchar Nigam Ltd. Aut
11492 1047 1025 Cable One
4134 1283 1008 CHINANET-BACKBONE
18566 1006 997 Covad Communications
8151 1208 995 UniNet S.A. de C.V.
6478 1094 961 AT&T Worldnet Services
4323 1265 905 Time Warner Telecom
9498 977 905 BHARTI BT INTERNET LTD.
9583 1108 726 Sify Limited
22773 714 671 Cox Communications, Inc.
17488 676 641 Hathway IP Over Cable Interne
5668 601 584 CenturyTel Internet Holdings,
19262 774 565 Verizon Global Networks
7545 627 548 TPG Internet Pty Ltd
6197 1035 532 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 536 508 Reliance Infocom Ltd Internet
7029 586 507 Alltel Information Services,
4668 507 497 LG-EDS Systems Inc.
15270 531 496 PaeTec.net -a division of Pae
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
47588 UNALLOCATED 64.71.19.0/24 33544 WiLine Networks Inc.
47588 UNALLOCATED 64.71.29.0/24 33544 WiLine Networks Inc.
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
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
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 /12:123
/13:238 /14:450 /15:866 /16:9370 /17:3844 /18:6396
/19:13472 /20:15359 /21:13856 /22:17952 /23:19239 /24:116394
/25:776 /26:829 /27:476 /28:58 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1085 1094 AT&T Worldnet Services
11492 1033 1047 Cable One
18566 988 1006 Covad Communications
9583 946 1108 Sify Limited
2386 826 1129 AT&T Data Communications Serv
7018 811 1499 AT&T WorldNet Services
6197 796 1035 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 693 790 Citizens Utilities
9498 642 977 BHARTI BT INTERNET LTD.
4755 608 1213 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
8151 584 1208 UniNet S.A. de C.V.
19916 563 568 OLM LLC
4323 524 1265 Time Warner Telecom
15270 498 531 PaeTec.net -a division of Pae
17488 497 676 Hathway IP Over Cable Interne
4668 496 507 LG-EDS Systems Inc.
5668 466 601 CenturyTel Internet Holdings,
855 464 566 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:73 9:1 12:1794 13:1
15:19 16:3 17:3 18:8 20:37 24:944
25:1 32:53 38:312 40:60 41:128 44:2
47:5 52:4 55:2 56:3 57:26 58:393
59:342 60:273 61:940 62:969 63:1968 64:3074
65:2357 66:3278 67:803 68:635 69:1827 70:497
71:104 72:1327 73:1 74:443 75:259 76:51
77:182 80:845 81:803 82:606 83:374 84:412
85:771 86:359 87:470 88:271 89:864 90:6
91:292 97:6 116:62 121:181 122:526 123:96
124:796 125:930 128:281 129:219 130:124 131:364
132:52 133:11 134:193 135:39 136:183 137:78
138:135 139:67 140:468 141:170 142:371 143:234
144:291 145:43 146:318 147:117 148:385 149:144
150:115 151:159 152:92 153:120 154:4 155:253
156:152 157:187 158:160 159:157 160:105 161:90
162:234 163:174 164:451 165:406 166:234 167:281
168:495 169:118 170:393 171:15 172:1 189:427
190:585 192:5744 193:3814 194:3108 195:2211 196:925
198:3737 199:3283 200:4700 201:974 202:7255 203:7479
204:3944 205:2072 206:2353 207:2879 208:2669 209:3588
210:2471 211:944 212:1297 213:1449 214:403 215:40
216:4007 217:1142 218:355 219:358 220:945 221:408
222:264
End of report
