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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 15 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217905
Prefixes after maximum aggregation: 116364
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 105899
Total ASes present in the Internet Routing Table: 24901
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21693
Origin ASes announcing only one prefix: 10480
Transit ASes present in the Internet Routing Table: 3208
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: 30
Max AS path prepend of ASN (33993) 26
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1688228168
Equivalent to 100 /8s, 160 /16s and 81 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 113685
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50045
Total APNIC prefixes after maximum aggregation: 20072
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 47072
Unique aggregates announced from the APNIC address blocks: 21119
APNIC Region origin ASes present in the Internet Routing Table: 2914
APNIC Prefixes per ASN: 16.15
APNIC Region origin ASes announcing only one prefix: 780
APNIC Region transit ASes present in the Internet Routing Table: 433
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 291354304
Equivalent to 17 /8s, 93 /16s and 182 /24s
Percentage of available APNIC address space announced: 72.2
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: 105883
Total ARIN prefixes after maximum aggregation: 61824
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77888
Unique aggregates announced from the ARIN address blocks: 30254
ARIN Region origin ASes present in the Internet Routing Table: 11484
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4404
ARIN Region transit ASes present in the Internet Routing Table: 1049
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 328558208
Equivalent to 19 /8s, 149 /16s and 102 /24s
Percentage of available ARIN address space announced: 72.5
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: 44862
Total RIPE prefixes after maximum aggregation: 29372
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41429
Unique aggregates announced from the RIPE address blocks: 27696
RIPE Region origin ASes present in the Internet Routing Table: 9463
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 4989
RIPE Region transit ASes present in the Internet Routing Table: 1526
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 298712320
Equivalent to 17 /8s, 205 /16s and 253 /24s
Percentage of available RIPE address space announced: 74.2
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, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 14576
Total LACNIC prefixes after maximum aggregation: 4095
LACNIC Deaggregation factor: 3.56
Prefixes being announced from the LACNIC address blocks: 12669
Unique aggregates announced from the LACNIC address blocks: 7110
LACNIC Region origin ASes present in the Internet Routing Table: 776
LACNIC Prefixes per ASN: 16.33
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: 19
Number of LACNIC addresses announced to Internet: 38283520
Equivalent to 2 /8s, 72 /16s and 41 /24s
Percentage of available LACNIC address space announced: 57.0
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: 2534
Total AfriNIC prefixes after maximum aggregation: 995
AfriNIC Deaggregation factor: 2.55
Prefixes being announced from the AfriNIC address blocks: 1905
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 185
AfriNIC Prefixes per ASN: 10.30
AfriNIC Region origin ASes announcing only one prefix: 59
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: 14
Number of AfriNIC addresses announced to Internet: 5969408
Equivalent to 0 /8s, 91 /16s and 22 /24s
Percentage of available AfriNIC address space announced: 17.8
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 9487 269 CHINANET-BACKBONE
4755 1195 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1100 78 372 Sify Limited
9498 973 469 73 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 779 35 709 Korea Telecom (ATM-MPLS)
17488 663 43 34 Hathway IP Over Cable Interne
7545 612 142 79 TPG Internet Pty Ltd
1221 572 1956 446 Telstra Pty Ltd
18101 530 116 26 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4668 502 68 8 LG-EDS Systems Inc.
4812 458 795 74 China Telecom (Shanghai)
9443 458 115 74 Primus Telecommunications
7474 390 216 262 SingTel Optus Pty Ltd
2907 369 1749 311 SINET Japan
4802 359 86 148 Wantree Development
9829 359 274 14 BSNL National Internet Backbo
17557 358 35 173 Pakistan Telecom
17974 345 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6127 982 AT&T WorldNet Services
4323 1268 1022 354 Time Warner Telecom
6478 1093 334 146 AT&T Worldnet Services
2386 1086 526 731 AT&T Data Communications Serv
6197 1035 686 501 BellSouth Network Solutions,
11492 1030 102 15 Cable One
18566 999 288 9 Covad Communications
174 952 6792 867 Cogent Communications
701 938 6677 736 UUNET Technologies, Inc.
1239 824 2700 575 Sprint
20115 815 725 427 Charter Communications
7011 782 225 465 Citizens Utilities
209 719 3734 570 Qwest
19262 709 2534 168 Verizon Global Networks
22773 699 1871 40 Cox Communications, Inc.
721 617 21756 274 DLA Systems Automation Center
852 596 1095 377 Telus Advanced Communications
5668 584 160 17 CenturyTel Internet Holdings,
7029 569 456 81 Alltel Information Services,
19916 568 49 54 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 520 1941 414 UUNET - Commercial IP service
24863 341 47 33 LINKdotNET AS number
3301 306 1454 286 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 275 95 252 Dynamic Network Technologies,
8220 260 463 251 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 239 2256 92 France Telecom Transpac
8708 235 288 228 Romania Data Systems S.A.
3269 216 2583 73 TELECOM ITALIA
3246 207 338 196 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 93 SC Kappa Invexim SRL
20858 199 34 4 EgyNet
3352 196 1795 36 Ibernet, Internet Access Netw
1257 191 1180 169 SWIPnet Swedish IP Network
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
786 178 1795 178 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1038 1869 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 364 116 64 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 310 238 12 VTR PUNTO NET S.A.
7303 266 143 24 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 225 176 23 Telefonica Del Peru
6503 213 171 85 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 181 25 24 NEWCOM AMERICAS
10620 169 49 22 TVCABLE BOGOTA
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 156 28 59 INTERCABLE
7910 153 11 30 ANDINET ON LINE
14522 146 22 5 SatNet S.A.
18822 146 9 6 TELEFONICA MANQUEHUE
19429 146 91 38 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 217 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 116 7 8 EEPAD TISP TELECOM & INTERNET
2905 85 176 74 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 61 6 2 Egyptian Universities Network
15706 51 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
8524 30 2 6 AUCEGYPT Autonomous System
33766 29 2 1 Nyala Communications Pty Ltd
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
12455 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1195 1119 Videsh Sanchar Nigam Ltd. Aut
11492 1030 1015 Cable One
4134 1274 1005 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1093 947 AT&T Worldnet Services
4323 1268 914 Time Warner Telecom
9498 973 900 BHARTI BT INTERNET LTD.
8151 1038 827 UniNet S.A. de C.V.
9583 1100 728 Sify Limited
22773 699 659 Cox Communications, Inc.
17488 663 629 Hathway IP Over Cable Interne
5668 584 567 CenturyTel Internet Holdings,
19262 709 541 Verizon Global Networks
6197 1035 534 BellSouth Network Solutions,
7545 612 533 TPG Internet Pty Ltd
19916 568 514 OLM LLC
18101 530 504 Reliance Infocom Ltd Internet
855 566 495 Canadian Research Network
4668 502 494 LG-EDS Systems Inc.
15270 524 489 PaeTec.net -a division of Pae
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
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 /8:18 /9:9 /10:12 /11:34 /12:122
/13:235 /14:447 /15:854 /16:9340 /17:3809 /18:6290
/19:13420 /20:15176 /21:13666 /22:17715 /23:19085 /24:115403
/25:769 /26:812 /27:481 /28:60 /29:39 /30:69
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1084 1093 AT&T Worldnet Services
11492 1016 1030 Cable One
18566 981 999 Covad Communications
9583 940 1100 Sify Limited
7018 815 1497 AT&T WorldNet Services
2386 808 1086 AT&T Data Communications Serv
6197 797 1035 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 685 782 Citizens Utilities
9498 635 973 BHARTI BT INTERNET LTD.
4766 589 783 Korea Telecom (KIX)
4755 586 1195 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 533 1268 Time Warner Telecom
4668 492 502 LG-EDS Systems Inc.
15270 491 524 PaeTec.net -a division of Pae
17488 484 663 Hathway IP Over Cable Interne
855 464 566 Canadian Research Network
18101 456 530 Reliance Infocom Ltd Internet
5668 452 584 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:65 9:1 12:1794 15:19
16:3 17:3 18:8 20:35 24:949 25:1
32:53 38:295 40:57 41:118 44:2 47:4
52:4 55:1 56:3 57:26 58:369 59:366
60:264 61:906 62:969 63:1960 64:3116 65:2314
66:3254 67:798 68:646 69:1790 70:490 71:110
72:1248 73:1 74:366 75:244 76:35 77:141
80:836 81:796 82:622 83:375 84:438 85:746
86:373 87:461 88:248 89:838 90:19 91:260
97:1 116:14 121:171 122:522 123:92 124:763
125:935 128:271 129:221 130:125 131:355 132:51
133:10 134:193 135:39 136:195 137:83 138:194
139:57 140:480 141:149 142:369 143:213 144:290
145:43 146:323 147:144 148:396 149:142 150:115
151:124 152:93 153:112 154:4 155:252 156:153
157:182 158:161 159:156 160:103 161:90 162:236
163:142 164:451 165:404 166:246 167:278 168:498
169:120 170:393 171:15 172:1 189:253 190:567
192:5742 193:3783 194:3089 195:2205 196:922 198:3762
199:3279 200:4673 201:1014 202:7237 203:7418 204:3953
205:2107 206:2405 207:2883 208:2612 209:3592 210:2391
211:933 212:1288 213:1443 214:410 215:39 216:4011
217:1147 218:354 219:300 220:909 221:393 222:269
End of report
Report Website: http://thyme.apnic.net
