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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 06 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217307
Prefixes after maximum aggregation: 116146
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 104519
Total ASes present in the Internet Routing Table: 24828
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21636
Origin ASes announcing only one prefix: 10446
Transit ASes present in the Internet Routing Table: 3192
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 3
Unregistered 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: 1702016840
Equivalent to 101 /8s, 114 /16s and 183 /24s
Percentage of available address space announced: 45.9
Percentage of allocated address space announced: 62.3
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 113316
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49808
Total APNIC prefixes after maximum aggregation: 20051
APNIC Deaggregation factor: 2.48
Prefixes being announced from the APNIC address blocks: 46852
Unique aggregates announced from the APNIC address blocks: 21080
APNIC Region origin ASes present in the Internet Routing Table: 2907
APNIC Region origin ASes announcing only one prefix: 780
APNIC Region transit ASes present in the Internet Routing Table: 427
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 290880704
Equivalent to 17 /8s, 86 /16s and 124 /24s
Percentage of available APNIC address space announced: 72.1
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: 105578
Total ARIN prefixes after maximum aggregation: 61710
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77614
Unique aggregates announced from the ARIN address blocks: 30156
ARIN Region origin ASes present in the Internet Routing Table: 11454
ARIN Region origin ASes announcing only one prefix: 4380
ARIN Region transit ASes present in the Internet Routing Table: 1047
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 324982400
Equivalent to 19 /8s, 94 /16s and 214 /24s
Percentage of available ARIN address space announced: 71.7
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: 44860
Total RIPE prefixes after maximum aggregation: 29306
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41438
Unique aggregates announced from the RIPE address blocks: 26489
RIPE Region origin ASes present in the Internet Routing Table: 9432
RIPE Region origin ASes announcing only one prefix: 4973
RIPE Region transit ASes present in the Internet Routing Table: 1517
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 299152384
Equivalent to 17 /8s, 212 /16s and 180 /24s
Percentage of available RIPE address space announced: 74.3
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: 14516
Total LACNIC prefixes after maximum aggregation: 4085
LACNIC Deaggregation factor: 3.55
Prefixes being announced from the LACNIC address blocks: 12609
Unique aggregates announced from the LACNIC address blocks: 7084
LACNIC Region origin ASes present in the Internet Routing Table: 775
LACNIC Region origin ASes announcing only one prefix: 254
LACNIC Region transit ASes present in the Internet Routing Table: 133
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38815744
Equivalent to 2 /8s, 80 /16s and 72 /24s
Percentage of available LACNIC address space announced: 57.8
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: 2541
Total AfriNIC prefixes after maximum aggregation: 990
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1892
Unique aggregates announced from the AfriNIC address blocks: 1171
AfriNIC Region origin ASes present in the Internet Routing Table: 186
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: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6034176
Equivalent to 0 /8s, 92 /16s and 19 /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 1286 9438 280 CHINANET-BACKBONE
4755 1177 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1100 78 379 Sify Limited
9498 967 469 70 BHARTI BT INTERNET LTD.
4766 788 4943 314 Korea Telecom (KIX)
23577 784 35 709 Korea Telecom (ATM-MPLS)
17488 626 41 32 Hathway IP Over Cable Interne
7545 611 142 78 TPG Internet Pty Ltd
1221 572 1956 446 Telstra Pty Ltd
18101 538 116 27 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4668 502 68 10 LG-EDS Systems Inc.
4812 457 791 72 China Telecom (Shanghai)
9443 453 111 73 Primus Telecommunications
7474 385 216 260 SingTel Optus Pty Ltd
17557 371 35 176 Pakistan Telecom
4802 359 86 150 Wantree Development
4837 342 4596 157 chinanet IDC center beijing n
17974 342 129 14 PT TELEKOMUNIKASI INDONESIA
2907 338 1749 311 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6127 983 AT&T WorldNet Services
4323 1269 1021 353 Time Warner Telecom
2386 1089 558 731 AT&T Data Communications Serv
6478 1084 333 151 AT&T Worldnet Services
6197 1031 680 499 BellSouth Network Solutions,
11492 1022 102 12 Cable One
18566 999 288 9 Covad Communications
701 959 6660 728 UUNET Technologies, Inc.
174 939 6790 858 Cogent Communications
1239 819 2715 570 Sprint
20115 811 722 426 Charter Communications
7011 780 225 463 Citizens Utilities
209 721 3733 572 Qwest
19262 721 2582 163 Verizon Global Networks
22773 695 1871 42 Cox Communications, Inc.
721 618 21756 274 DLA Systems Automation Center
852 591 1096 378 Telus Advanced Communications
5668 582 160 17 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 565 250 71 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 520 1941 414 UUNET - Commercial IP service
24863 340 47 32 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 273 95 251 Dynamic Network Technologies,
8220 265 463 255 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
5416 249 15 15 BATELCO-BH
3215 239 2256 92 France Telecom Transpac
8708 232 286 225 Romania Data Systems S.A.
1257 222 1180 168 SWIPnet Swedish IP Network
3269 216 2583 73 TELECOM ITALIA
3246 208 354 197 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
3300 184 171 89 AUCS Communications Services
12479 184 578 6 Uni2 Autonomous System
786 175 1795 175 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1073 2009 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 361 116 66 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 310 238 12 VTR PUNTO NET S.A.
7303 265 143 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 227 180 24 Telefonica Del Peru
6503 213 171 84 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 181 25 24 NEWCOM AMERICAS
10620 164 48 22 TVCABLE BOGOTA
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 156 28 59 INTERCABLE
7910 153 11 30 ANDINET ON LINE
19429 148 91 38 E.T.B.
14522 147 22 5 SatNet S.A.
18822 146 9 6 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 209 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 128 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 113 7 7 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 55 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
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1177 1100 Videsh Sanchar Nigam Ltd. Aut
11492 1022 1010 Cable One
4134 1286 1006 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1084 933 AT&T Worldnet Services
4323 1269 916 Time Warner Telecom
9498 967 897 BHARTI BT INTERNET LTD.
8151 1073 863 UniNet S.A. de C.V.
9583 1100 721 Sify Limited
22773 695 653 Cox Communications, Inc.
17488 626 594 Hathway IP Over Cable Interne
5668 582 565 CenturyTel Internet Holdings,
19262 721 558 Verizon Global Networks
7545 611 533 TPG Internet Pty Ltd
6197 1031 532 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 538 511 Reliance Infocom Ltd Internet
855 565 494 Canadian Research Network
4668 502 492 LG-EDS Systems Inc.
7029 565 484 Alltel Information Services,
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 /8:20 /9:9 /10:12 /11:33 /12:122
/13:234 /14:444 /15:851 /16:9341 /17:3802 /18:6279
/19:13421 /20:15064 /21:13623 /22:17688 /23:19057 /24:115044
/25:774 /26:808 /27:481 /28:57 /29:38 /30:67
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1075 1084 AT&T Worldnet Services
11492 1008 1022 Cable One
18566 981 999 Covad Communications
9583 940 1100 Sify Limited
7018 817 1500 AT&T WorldNet Services
2386 811 1089 AT&T Data Communications Serv
6197 796 1031 BellSouth Network Solutions,
23577 770 784 Korea Telecom (ATM-MPLS)
7011 683 780 Citizens Utilities
9498 630 967 BHARTI BT INTERNET LTD.
4766 593 788 Korea Telecom (KIX)
4755 573 1177 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 528 1269 Time Warner Telecom
4668 492 502 LG-EDS Systems Inc.
15270 486 518 PaeTec.net -a division of Pae
855 463 565 Canadian Research Network
18101 462 538 Reliance Infocom Ltd Internet
5668 450 582 CenturyTel Internet Holdings,
17488 448 626 Hathway IP Over Cable Interne
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:66 9:1 12:1795 15:19
16:3 17:3 18:8 20:36 24:948 25:1
32:53 38:294 40:57 41:112 44:2 47:4
52:4 55:1 56:3 57:25 58:361 59:360
60:227 61:905 62:991 63:1965 64:3113 65:2314
66:3217 67:772 68:646 69:1790 70:490 71:111
72:1246 73:1 74:325 75:175 76:31 77:156
80:813 81:785 82:663 83:378 84:467 85:756
86:381 87:438 88:250 89:884 90:19 91:257
97:1 116:10 121:163 122:523 123:64 124:758
125:915 128:274 129:223 130:121 131:350 132:49
133:10 134:192 135:38 136:175 137:87 138:192
139:55 140:481 141:142 142:369 143:213 144:280
145:43 146:323 147:147 148:383 149:179 150:115
151:123 152:93 153:121 154:5 155:251 156:152
157:182 158:160 159:154 160:103 161:89 162:235
163:141 164:452 165:402 166:246 167:292 168:499
169:120 170:393 171:15 172:1 189:243 190:548
192:5741 193:3778 194:3069 195:2203 196:918 198:3743
199:3284 200:4643 201:1005 202:7235 203:7411 204:3942
205:2096 206:2413 207:2880 208:2614 209:3595 210:2378
211:931 212:1286 213:1425 214:409 215:39 216:4000
217:1172 218:353 219:299 220:896 221:390 222:270
End of report
Report Website: http://thyme.apnic.net
