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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 22 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/22/0400
Analysis Summary
----------------
BGP routing table entries examined: 220947
Prefixes after maximum aggregation: 117493
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107152
Total ASes present in the Internet Routing Table: 25241
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21978
Origin ASes announcing only one prefix: 10653
Transit ASes present in the Internet Routing Table: 3263
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: 24
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1720182528
Equivalent to 102 /8s, 135 /16s and 231 /24s
Percentage of available address space announced: 46.4
Percentage of allocated address space announced: 61.5
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 115865
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50920
Total APNIC prefixes after maximum aggregation: 20329
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47927
Unique aggregates announced from the APNIC address blocks: 21208
APNIC Region origin ASes present in the Internet Routing Table: 2951
APNIC Prefixes per ASN: 16.24
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 444
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 293354432
Equivalent to 17 /8s, 124 /16s and 59 /24s
Percentage of available APNIC address space announced: 72.7
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: 106530
Total ARIN prefixes after maximum aggregation: 62135
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78537
Unique aggregates announced from the ARIN address blocks: 30684
ARIN Region origin ASes present in the Internet Routing Table: 11587
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4452
ARIN Region transit ASes present in the Internet Routing Table: 1054
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 333571968
Equivalent to 19 /8s, 225 /16s and 231 /24s
Percentage of available ARIN address space announced: 73.6
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: 45727
Total RIPE prefixes after maximum aggregation: 29857
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42232
Unique aggregates announced from the RIPE address blocks: 28200
RIPE Region origin ASes present in the Internet Routing Table: 9644
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5095
RIPE Region transit ASes present in the Internet Routing Table: 1556
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 306282624
Equivalent to 18 /8s, 65 /16s and 128 /24s
Percentage of available RIPE address space announced: 76.1
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: 15185
Total LACNIC prefixes after maximum aggregation: 4162
LACNIC Deaggregation factor: 3.65
Prefixes being announced from the LACNIC address blocks: 13261
Unique aggregates announced from the LACNIC address blocks: 7256
LACNIC Region origin ASes present in the Internet Routing Table: 793
LACNIC Prefixes per ASN: 16.72
LACNIC Region origin ASes announcing only one prefix: 258
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: 17
Number of LACNIC addresses announced to Internet: 38863360
Equivalent to 2 /8s, 81 /16s and 2 /24s
Percentage of available LACNIC address space announced: 57.9
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: 2573
Total AfriNIC prefixes after maximum aggregation: 998
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 1960
Unique aggregates announced from the AfriNIC address blocks: 1181
AfriNIC Region origin ASes present in the Internet Routing Table: 187
AfriNIC Prefixes per ASN: 10.48
AfriNIC Region origin ASes announcing only one prefix: 55
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: 6059264
Equivalent to 0 /8s, 92 /16s and 117 /24s
Percentage of available AfriNIC address space announced: 18.1
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 1283 9706 275 CHINANET-BACKBONE
4755 1215 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1107 79 384 Sify Limited
9498 983 469 72 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 778 35 707 Korea Telecom (ATM-MPLS)
17488 675 44 35 Hathway IP Over Cable Interne
7545 611 142 76 TPG Internet Pty Ltd
1221 542 1954 417 Telstra Pty Ltd
18101 539 116 34 Reliance Infocom Ltd Internet
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 459 807 76 China Telecom (Shanghai)
9443 455 115 74 Primus Telecommunications
4802 408 86 147 Wantree Development
7474 407 218 269 SingTel Optus Pty Ltd
9829 362 258 14 BSNL National Internet Backbo
17557 356 37 169 Pakistan Telecom
17974 349 129 12 PT TELEKOMUNIKASI INDONESIA
4837 343 4693 158 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6163 990 AT&T WorldNet Services
4323 1270 1027 362 Time Warner Telecom
2386 1151 596 757 AT&T Data Communications Serv
6478 1099 342 124 AT&T Worldnet Services
11492 1056 104 24 Cable One
6197 1036 703 505 BellSouth Network Solutions,
18566 1007 288 9 Covad Communications
174 953 6791 863 Cogent Communications
701 953 6597 729 UUNET Technologies, Inc.
1239 819 2731 579 Sprint
20115 807 724 428 Charter Communications
7011 793 226 474 Citizens Utilities
19262 775 2645 208 Verizon Global Networks
209 728 3848 583 Qwest
22773 717 1888 43 Cox Communications, Inc.
7385 597 166 463 Linkport Communications
721 595 21739 270 DLA Systems Automation Center
852 590 1098 371 Telus Advanced Communications
7029 587 456 79 Alltel Information Services,
5668 568 160 17 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 518 1939 411 UUNET - Commercial IP service
24863 346 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 306 4994 253 Deutsche Telekom AG
6746 278 128 254 Dynamic Network Technologies,
680 257 2044 250 DFN-IP service G-WiN
8220 249 459 240 COLT Telecommunications
3215 240 2256 92 France Telecom Transpac
8708 236 287 229 Romania Data Systems S.A.
3269 216 2647 74 TELECOM ITALIA
20858 207 34 4 EgyNet
8551 206 196 30 Bezeq International
3246 202 337 192 Song Networks
3352 201 1783 37 Ibernet, Internet Access Netw
30890 201 17 93 SC Kappa Invexim SRL
9116 197 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
12479 184 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
786 176 1795 176 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1247 1870 214 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 366 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 238 12 VTR PUNTO NET S.A.
7303 281 143 29 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 243 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 222 168 25 Telefonica Del Peru
6503 206 170 80 AVANTEL, S.A.
20299 194 23 12 NEWCOM AMERICAS
10620 186 53 24 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 154 94 43 E.T.B.
19169 144 9 27 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 867 224 The Internet Solution
8452 228 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 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 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 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
33766 26 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1215 1143 Videsh Sanchar Nigam Ltd. Aut
8151 1247 1033 UniNet S.A. de C.V.
11492 1056 1032 Cable One
4134 1283 1008 CHINANET-BACKBONE
18566 1007 998 Covad Communications
6478 1099 975 AT&T Worldnet Services
9498 983 911 BHARTI BT INTERNET LTD.
4323 1270 908 Time Warner Telecom
9583 1107 723 Sify Limited
22773 717 674 Cox Communications, Inc.
17488 675 640 Hathway IP Over Cable Interne
19262 775 567 Verizon Global Networks
5668 568 551 CenturyTel Internet Holdings,
7545 611 535 TPG Internet Pty Ltd
6197 1036 531 BellSouth Network Solutions,
19916 568 517 OLM LLC
7029 587 508 Alltel Information Services,
18101 539 505 Reliance Infocom Ltd Internet
15270 534 499 PaeTec.net -a division of Pae
4668 508 498 LG-EDS Systems Inc.
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
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 /11:35 /12:122
/13:237 /14:451 /15:869 /16:9383 /17:3863 /18:6382
/19:13467 /20:15376 /21:13919 /22:18145 /23:19340 /24:117175
/25:768 /26:823 /27:475 /28:62 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1090 1099 AT&T Worldnet Services
11492 1042 1056 Cable One
18566 989 1007 Covad Communications
9583 946 1107 Sify Limited
2386 846 1151 AT&T Data Communications Serv
7018 807 1501 AT&T WorldNet Services
6197 794 1036 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 695 793 Citizens Utilities
9498 651 983 BHARTI BT INTERNET LTD.
8151 624 1247 UniNet S.A. de C.V.
4755 611 1215 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 527 1270 Time Warner Telecom
15270 501 534 PaeTec.net -a division of Pae
4668 497 508 LG-EDS Systems Inc.
17488 496 675 Hathway IP Over Cable Interne
855 464 566 Canadian Research Network
18101 463 539 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:73 9:1 12:1803 15:19
16:3 17:3 18:8 20:38 24:943 25:1
32:52 33:2 38:313 40:60 41:130 44:2
47:5 52:4 55:2 56:3 57:25 58:397
59:387 60:277 61:944 62:974 63:1974 64:3108
65:2365 66:3264 67:812 68:639 69:1833 70:516
71:105 72:1326 73:1 74:461 75:260 76:58
77:194 78:1 80:852 81:800 82:578 83:381
84:449 85:757 86:352 87:464 88:270 89:870
90:7 91:304 97:6 116:73 121:182 122:527
123:101 124:811 125:935 128:281 129:222 130:128
131:365 132:52 133:10 134:192 135:39 136:185
137:80 138:139 139:70 140:476 141:170 142:368
143:234 144:291 145:43 146:323 147:118 148:387
149:143 150:114 151:160 152:92 153:123 154:4
155:253 156:151 157:188 158:160 159:158 160:106
161:91 162:234 163:185 164:451 165:403 166:239
167:282 168:497 169:120 170:401 171:16 172:1
189:469 190:617 192:5762 193:3853 194:3127 195:2217
196:943 198:3734 199:3296 200:4776 201:1015 202:7301
203:7517 204:3956 205:2078 206:2354 207:2885 208:2697
209:3562 210:2475 211:965 212:1303 213:1468 214:407
215:40 216:4009 217:1156 218:359 219:365 220:947
221:399 222:264
End of report
