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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 21 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/21/0400
Analysis Summary
----------------
BGP routing table entries examined: 223930
Prefixes after maximum aggregation: 118039
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 108720
Total ASes present in the Internet Routing Table: 25492
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22178
Origin ASes announcing only one prefix: 10770
Transit ASes present in the Internet Routing Table: 3314
Transit-only ASes present in the Internet Routing Table: 80
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: 4
Unregistered ASNs in the Routing Table: 6
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: 1724109664
Equivalent to 102 /8s, 195 /16s and 211 /24s
Percentage of available address space announced: 46.5
Percentage of allocated address space announced: 61.6
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 117527
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52378
Total APNIC prefixes after maximum aggregation: 20517
APNIC Deaggregation factor: 2.55
Prefixes being announced from the APNIC address blocks: 49310
Unique aggregates announced from the APNIC address blocks: 21613
APNIC Region origin ASes present in the Internet Routing Table: 2979
APNIC Prefixes per ASN: 16.55
APNIC Region origin ASes announcing only one prefix: 799
APNIC Region transit ASes present in the Internet Routing Table: 455
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 300604064
Equivalent to 17 /8s, 234 /16s and 218 /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, 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: 106779
Total ARIN prefixes after maximum aggregation: 62061
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78498
Unique aggregates announced from the ARIN address blocks: 31046
ARIN Region origin ASes present in the Internet Routing Table: 11639
ARIN Prefixes per ASN: 6.74
ARIN Region origin ASes announcing only one prefix: 4473
ARIN Region transit ASes present in the Internet Routing Table: 1069
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 336468864
Equivalent to 20 /8s, 14 /16s and 27 /24s
Percentage of available ARIN address space announced: 74.3
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: 47059
Total RIPE prefixes after maximum aggregation: 30215
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 43479
Unique aggregates announced from the RIPE address blocks: 28683
RIPE Region origin ASes present in the Internet Routing Table: 9795
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5186
RIPE Region transit ASes present in the Internet Routing Table: 1574
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 316604672
Equivalent to 18 /8s, 223 /16s and 1 /24s
Percentage of available RIPE address space announced: 78.6
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
40960-44031
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: 15189
Total LACNIC prefixes after maximum aggregation: 4231
LACNIC Deaggregation factor: 3.59
Prefixes being announced from the LACNIC address blocks: 13214
Unique aggregates announced from the LACNIC address blocks: 7465
LACNIC Region origin ASes present in the Internet Routing Table: 808
LACNIC Prefixes per ASN: 16.35
LACNIC Region origin ASes announcing only one prefix: 256
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 39604480
Equivalent to 2 /8s, 92 /16s and 81 /24s
Percentage of available LACNIC address space announced: 59.0
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: 2517
Total AfriNIC prefixes after maximum aggregation: 1005
AfriNIC Deaggregation factor: 2.50
Prefixes being announced from the AfriNIC address blocks: 1994
Unique aggregates announced from the AfriNIC address blocks: 1213
AfriNIC Region origin ASes present in the Internet Routing Table: 190
AfriNIC Prefixes per ASN: 10.49
AfriNIC Region origin ASes announcing only one prefix: 56
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6244864
Equivalent to 0 /8s, 95 /16s and 74 /24s
Percentage of available AfriNIC address space announced: 18.6
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
4134 1292 10039 280 CHINANET-BACKBONE
4755 1228 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1106 79 395 Sify Limited
9498 998 469 66 BHARTI BT INTERNET LTD.
4766 790 4943 312 Korea Telecom (KIX)
23577 776 35 703 Korea Telecom (ATM-MPLS)
17488 704 46 41 Hathway IP Over Cable Interne
7545 643 144 91 TPG Internet Pty Ltd
18101 558 117 34 Reliance Infocom Ltd Internet
1221 548 1954 423 Telstra Pty Ltd
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 469 889 82 China Telecom (Shanghai)
9443 465 121 77 Primus Telecommunications
7474 412 218 270 SingTel Optus Pty Ltd
4802 408 88 148 Wantree Development
17974 371 129 12 PT TELEKOMUNIKASI INDONESIA
9829 363 258 15 BSNL National Internet Backbo
2907 362 1700 301 SINET Japan
4808 357 668 114 CNCGROUP IP network: China169
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1481 6115 977 AT&T WorldNet Services
4323 1309 1042 367 Time Warner Telecom
2386 1144 614 754 AT&T Data Communications Serv
6478 1115 365 146 AT&T Worldnet Services
11492 1088 106 23 Cable One
6197 1025 716 509 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
174 957 6778 869 Cogent Communications
701 953 6596 725 UUNET Technologies, Inc.
7011 840 234 531 Citizens Utilities
1239 811 2736 580 Sprint
20115 798 729 425 Charter Communications
19262 775 2703 202 Verizon Global Networks
209 744 3854 580 Qwest
22773 725 1892 44 Cox Communications, Inc.
5668 614 169 20 CenturyTel Internet Holdings,
7029 599 488 80 Alltel Information Services,
852 586 1089 369 Telus Advanced Communications
855 575 254 73 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 514 1938 406 UUNET - Commercial IP service
2119 514 1075 136 Telenor Internet Access
24863 351 56 35 LINKdotNET AS number
3307 322 180 43 BaneTele AS (formerly Enitel)
3301 309 1455 289 TeliaNet Sweden
3320 306 6034 257 Deutsche Telekom AG
6746 279 129 255 Dynamic Network Technologies,
680 264 2044 255 DFN-IP service G-WiN
3215 250 2320 93 France Telecom Transpac
8220 248 444 240 COLT Telecommunications
8708 237 416 230 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
5089 221 1658 53 NTL Group Limited
3269 218 2679 75 TELECOM ITALIA
3352 217 1848 43 Ibernet, Internet Access Netw
9121 209 1441 24 TTnet Autonomous System
9116 199 136 25 Goldenlines main autonomous s
1257 198 1196 176 SWIPnet Swedish IP Network
3246 195 329 185 Song Networks
12479 189 578 6 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 847 1918 206 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 372 116 64 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 238 12 VTR PUNTO NET S.A.
7303 296 144 31 Telecom Argentina Stet-France
6471 274 74 33 ENTEL CHILE S.A.
14117 255 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 224 170 26 Telefonica Del Peru
6503 212 188 84 AVANTEL, S.A.
10620 207 59 14 TVCABLE BOGOTA
23216 197 19 42 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
21826 157 27 59 INTERCABLE
7910 156 11 31 ANDINET ON LINE
19169 153 10 31 Telconet
20299 151 23 12 NEWCOM AMERICAS
19429 150 79 41 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 280 867 221 The Internet Solution
8452 214 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
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
15475 74 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 48 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 36 2 2 Starcomms Nigeria Limited
12455 33 6 3 Jambonet Autonomous system
8524 32 2 8 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1228 1156 Videsh Sanchar Nigam Ltd. Aut
11492 1088 1065 Cable One
4134 1292 1012 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1115 969 AT&T Worldnet Services
4323 1309 942 Time Warner Telecom
9498 998 932 BHARTI BT INTERNET LTD.
9583 1106 711 Sify Limited
22773 725 681 Cox Communications, Inc.
17488 704 663 Hathway IP Over Cable Interne
8151 847 641 UniNet S.A. de C.V.
5668 614 594 CenturyTel Internet Holdings,
19262 775 573 Verizon Global Networks
7545 643 552 TPG Internet Pty Ltd
18101 558 524 Reliance Infocom Ltd Internet
7029 599 519 Alltel Information Services,
19916 568 517 OLM LLC
6197 1025 516 BellSouth Network Solutions,
15270 545 510 PaeTec.net -a division of Pae
855 575 502 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
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 /8:18 /9:9 /10:15 /11:35 /12:124
/13:247 /14:464 /15:891 /16:9484 /17:3997 /18:6462
/19:13657 /20:15791 /21:14239 /22:18516 /23:19621 /24:118002
/25:802 /26:979 /27:472 /28:68 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1105 1115 AT&T Worldnet Services
11492 1079 1088 Cable One
18566 992 1010 Covad Communications
9583 947 1106 Sify Limited
2386 842 1144 AT&T Data Communications Serv
7018 791 1481 AT&T WorldNet Services
6197 777 1025 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 742 840 Citizens Utilities
9498 669 998 BHARTI BT INTERNET LTD.
4755 630 1228 Videsh Sanchar Nigam Ltd. Aut
4766 596 790 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 545 1309 Time Warner Telecom
17488 527 704 Hathway IP Over Cable Interne
15270 512 545 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
5668 478 614 CenturyTel Internet Holdings,
18101 475 558 Reliance Infocom Ltd Internet
855 473 575 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:81 9:1 12:1811 15:18
16:3 17:3 18:11 20:38 24:930 25:1
32:51 33:2 38:325 40:61 41:169 44:2
47:4 52:4 55:3 56:3 57:25 58:420
59:406 60:308 61:984 62:875 63:1977 64:3125
65:2351 66:3263 67:745 68:635 69:1886 70:430
71:112 72:1323 73:1 74:526 75:259 76:44
77:244 78:3 80:818 81:811 82:664 83:391
84:417 85:934 86:385 87:482 88:286 89:858
90:7 91:366 94:1 97:6 98:3 116:195
117:55 121:202 122:550 123:137 124:845 125:955
128:279 129:224 130:127 131:366 132:53 133:9
134:194 135:39 136:185 137:81 138:142 139:72
140:480 141:172 142:372 143:245 144:296 145:43
146:321 147:116 148:399 149:146 150:115 151:158
152:93 153:126 154:4 155:253 156:152 157:206
158:158 159:157 160:106 161:91 162:227 163:184
164:448 165:400 166:242 167:286 168:512 169:119
170:401 171:16 172:1 189:58 190:637 192:5769
193:3889 194:3186 195:2311 196:912 198:3841 199:3289
200:4892 201:1056 202:7398 203:7521 204:3961 205:2037
206:2418 207:2808 208:2647 209:3509 210:2471 211:963
212:1307 213:1496 214:412 215:40 216:3979 217:1147
218:359 219:382 220:978 221:413 222:260
End of report
