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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 20 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/20/0400
Analysis Summary
----------------
BGP routing table entries examined: 220695
Prefixes after maximum aggregation: 117361
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 107031
Total ASes present in the Internet Routing Table: 25213
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21963
Origin ASes announcing only one prefix: 10642
Transit ASes present in the Internet Routing Table: 3250
Transit-only ASes present in the Internet Routing Table: 77
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: 5
Unregistered ASNs in the Routing Table: 7
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: 1719939072
Equivalent to 102 /8s, 132 /16s and 48 /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: 115760
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50835
Total APNIC prefixes after maximum aggregation: 20276
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 47845
Unique aggregates announced from the APNIC address blocks: 21233
APNIC Region origin ASes present in the Internet Routing Table: 2943
APNIC Prefixes per ASN: 16.26
APNIC Region origin ASes announcing only one prefix: 787
APNIC Region transit ASes present in the Internet Routing Table: 441
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 293354944
Equivalent to 17 /8s, 124 /16s and 61 /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: 106434
Total ARIN prefixes after maximum aggregation: 62104
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78509
Unique aggregates announced from the ARIN address blocks: 30665
ARIN Region origin ASes present in the Internet Routing Table: 11577
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4441
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: 333573504
Equivalent to 19 /8s, 225 /16s and 237 /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: 45659
Total RIPE prefixes after maximum aggregation: 29821
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42171
Unique aggregates announced from the RIPE address blocks: 28126
RIPE Region origin ASes present in the Internet Routing Table: 9636
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5101
RIPE Region transit ASes present in the Internet Routing Table: 1549
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 306196352
Equivalent to 18 /8s, 64 /16s and 47 /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: 15181
Total LACNIC prefixes after maximum aggregation: 4148
LACNIC Deaggregation factor: 3.66
Prefixes being announced from the LACNIC address blocks: 13258
Unique aggregates announced from the LACNIC address blocks: 7257
LACNIC Region origin ASes present in the Internet Routing Table: 791
LACNIC Prefixes per ASN: 16.76
LACNIC Region origin ASes announcing only one prefix: 258
LACNIC Region transit ASes present in the Internet Routing Table: 142
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 38859776
Equivalent to 2 /8s, 80 /16s and 244 /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: 2576
Total AfriNIC prefixes after maximum aggregation: 1002
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1949
Unique aggregates announced from the AfriNIC address blocks: 1179
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.37
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 5995008
Equivalent to 0 /8s, 91 /16s and 122 /24s
Percentage of available AfriNIC address space announced: 17.9
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 1281 9697 273 CHINANET-BACKBONE
4755 1215 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1109 79 382 Sify Limited
9498 980 469 71 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 625 142 79 TPG Internet Pty Ltd
1221 547 1954 422 Telstra Pty Ltd
18101 537 116 33 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 454 115 74 Primus Telecommunications
7474 412 218 268 SingTel Optus Pty Ltd
9829 361 258 14 BSNL National Internet Backbo
4802 360 86 148 Wantree Development
17557 354 37 167 Pakistan Telecom
17974 350 129 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 1500 6161 989 AT&T WorldNet Services
4323 1269 1027 362 Time Warner Telecom
2386 1146 596 752 AT&T Data Communications Serv
6478 1099 342 124 AT&T Worldnet Services
11492 1055 104 23 Cable One
6197 1033 687 506 BellSouth Network Solutions,
18566 1007 288 9 Covad Communications
174 953 6791 863 Cogent Communications
701 947 6612 725 UUNET Technologies, Inc.
1239 818 2731 579 Sprint
20115 808 725 429 Charter Communications
7011 793 226 474 Citizens Utilities
19262 775 2645 208 Verizon Global Networks
209 725 3848 581 Qwest
22773 716 1888 43 Cox Communications, Inc.
7385 597 166 463 Linkport Communications
721 592 21739 269 DLA Systems Automation Center
852 590 1098 371 Telus Advanced Communications
7029 587 456 79 Alltel Information Services,
5668 575 160 17 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 519 1939 412 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 238 2254 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 216 2647 74 TELECOM ITALIA
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
20858 197 34 4 EgyNet
9116 196 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
12479 184 578 6 Uni2 Autonomous System
3300 182 171 88 AUCS Communications Services
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1249 1870 211 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
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 221 166 25 Telefonica Del Peru
6503 215 172 86 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.
7738 143 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 867 224 The Internet Solution
8452 229 188 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
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
33776 26 2 8 Starcomms Nigeria Limited
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 1249 1038 UniNet S.A. de C.V.
11492 1055 1032 Cable One
4134 1281 1008 CHINANET-BACKBONE
18566 1007 998 Covad Communications
6478 1099 975 AT&T Worldnet Services
9498 980 909 BHARTI BT INTERNET LTD.
4323 1269 907 Time Warner Telecom
9583 1109 727 Sify Limited
22773 716 673 Cox Communications, Inc.
17488 675 640 Hathway IP Over Cable Interne
19262 775 567 Verizon Global Networks
5668 575 558 CenturyTel Internet Holdings,
7545 625 546 TPG Internet Pty Ltd
6197 1033 527 BellSouth Network Solutions,
19916 568 517 OLM LLC
7029 587 508 Alltel Information Services,
18101 537 504 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
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 /16:9381 /17:3859 /18:6380
/19:13469 /20:15371 /21:13918 /22:18147 /23:19318 /24:116945
/25:775 /26:821 /27:481 /28:61 /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 1041 1055 Cable One
18566 989 1007 Covad Communications
9583 947 1109 Sify Limited
2386 841 1146 AT&T Data Communications Serv
7018 807 1500 AT&T WorldNet Services
6197 793 1033 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 695 793 Citizens Utilities
9498 648 980 BHARTI BT INTERNET LTD.
8151 626 1249 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 526 1269 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 463 537 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:72 9:1 12:1797 15:19
16:3 17:3 18:8 20:38 24:943 25:1
32:52 33:2 38:313 40:60 41:125 44:2
47:5 52:4 55:2 56:3 57:25 58:398
59:385 60:271 61:944 62:972 63:1976 64:3113
65:2364 66:3265 67:810 68:639 69:1829 70:515
71:105 72:1326 73:1 74:460 75:259 76:58
77:192 78:1 80:846 81:804 82:577 83:376
84:442 85:761 86:353 87:464 88:268 89:873
90:6 91:304 97:6 116:73 121:182 122:524
123:101 124:810 125:933 128:281 129:221 130:126
131:365 132:52 133:10 134:192 135:39 136:185
137:80 138:139 139:70 140:474 141:170 142:371
143:234 144:291 145:43 146:322 147:115 148:389
149:142 150:113 151:160 152:91 153:123 154:4
155:253 156:151 157:188 158:160 159:159 160:104
161:90 162:234 163:185 164:450 165:403 166:235
167:282 168:498 169:120 170:401 171:16 172:1
189:469 190:617 192:5749 193:3838 194:3119 195:2215
196:939 198:3732 199:3285 200:4768 201:1016 202:7250
203:7478 204:3948 205:2070 206:2359 207:2881 208:2686
209:3573 210:2484 211:965 212:1303 213:1468 214:405
215:40 216:4008 217:1147 218:356 219:363 220:948
221:397 222:264
End of report
