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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 12 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217633
Prefixes after maximum aggregation: 116290
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 104502
Total ASes present in the Internet Routing Table: 24863
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21663
Origin ASes announcing only one prefix: 10454
Transit ASes present in the Internet Routing Table: 3200
Transit-only ASes present in the Internet Routing Table: 75
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: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1688974920
Equivalent to 100 /8s, 171 /16s and 182 /24s
Percentage of available address space announced: 45.6
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 113479
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49911
Total APNIC prefixes after maximum aggregation: 20045
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 46940
Unique aggregates announced from the APNIC address blocks: 21057
APNIC Region origin ASes present in the Internet Routing Table: 2910
APNIC Region origin ASes announcing only one prefix: 778
APNIC Region transit ASes present in the Internet Routing Table: 430
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 291012288
Equivalent to 17 /8s, 88 /16s and 126 /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: 105783
Total ARIN prefixes after maximum aggregation: 61811
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77812
Unique aggregates announced from the ARIN address blocks: 30176
ARIN Region origin ASes present in the Internet Routing Table: 11464
ARIN Region origin ASes announcing only one prefix: 4382
ARIN Region transit ASes present in the Internet Routing Table: 1048
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 328107648
Equivalent to 19 /8s, 142 /16s and 134 /24s
Percentage of available ARIN address space announced: 72.4
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: 44829
Total RIPE prefixes after maximum aggregation: 29353
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41410
Unique aggregates announced from the RIPE address blocks: 26401
RIPE Region origin ASes present in the Internet Routing Table: 9450
RIPE Region origin ASes announcing only one prefix: 4984
RIPE Region transit ASes present in the Internet Routing Table: 1520
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 299474176
Equivalent to 17 /8s, 217 /16s and 157 /24s
Percentage of available RIPE address space announced: 74.4
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: 14537
Total LACNIC prefixes after maximum aggregation: 4080
LACNIC Deaggregation factor: 3.56
Prefixes being announced from the LACNIC address blocks: 12638
Unique aggregates announced from the LACNIC address blocks: 7150
LACNIC Region origin ASes present in the Internet Routing Table: 775
LACNIC Region origin ASes announcing only one prefix: 251
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38833152
Equivalent to 2 /8s, 80 /16s and 140 /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: 2569
Total AfriNIC prefixes after maximum aggregation: 997
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 1922
Unique aggregates announced from the AfriNIC address blocks: 1179
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Region origin ASes announcing only one prefix: 59
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6043648
Equivalent to 0 /8s, 92 /16s and 56 /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 1295 9485 268 CHINANET-BACKBONE
4755 1188 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1106 78 382 Sify Limited
9498 972 469 73 BHARTI BT INTERNET LTD.
4766 782 4943 312 Korea Telecom (KIX)
23577 781 35 707 Korea Telecom (ATM-MPLS)
17488 663 43 34 Hathway IP Over Cable Interne
7545 610 142 77 TPG Internet Pty Ltd
1221 570 1956 444 Telstra Pty Ltd
18101 528 116 26 Reliance Infocom Ltd Internet
4668 503 68 10 LG-EDS Systems Inc.
17676 503 10935 65 Softbank BB Corp.
4812 457 791 73 China Telecom (Shanghai)
9443 452 111 73 Primus Telecommunications
7474 385 216 260 SingTel Optus Pty Ltd
2907 368 1749 311 SINET Japan
4802 359 86 150 Wantree Development
9829 359 274 14 BSNL National Internet Backbo
17557 359 36 174 Pakistan Telecom
17974 342 129 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1502 6127 988 AT&T WorldNet Services
4323 1276 1022 355 Time Warner Telecom
2386 1091 542 734 AT&T Data Communications Serv
6478 1089 334 151 AT&T Worldnet Services
6197 1034 682 501 BellSouth Network Solutions,
11492 1025 102 15 Cable One
18566 999 288 9 Covad Communications
174 941 6791 861 Cogent Communications
701 935 6660 733 UUNET Technologies, Inc.
1239 824 2715 574 Sprint
20115 812 723 429 Charter Communications
7011 781 225 464 Citizens Utilities
19262 719 2550 171 Verizon Global Networks
209 718 3732 570 Qwest
22773 699 1871 40 Cox Communications, Inc.
721 619 21756 275 DLA Systems Automation Center
852 590 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
702 519 1941 413 UUNET - Commercial IP service
24863 341 47 33 LINKdotNET AS number
3301 310 1455 290 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 234 287 227 Romania Data Systems S.A.
1257 223 1180 169 SWIPnet Swedish IP Network
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 195 1795 36 Ibernet, Internet Access Netw
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 184 171 90 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 1075 2009 210 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
16814 362 22 8 NSS, S.A.
11172 361 116 66 Servicios Alestra S.A de C.V
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 226 178 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 146 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 216 188 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
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 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1188 1111 Videsh Sanchar Nigam Ltd. Aut
4134 1295 1027 CHINANET-BACKBONE
11492 1025 1010 Cable One
18566 999 990 Covad Communications
6478 1089 938 AT&T Worldnet Services
4323 1276 921 Time Warner Telecom
9498 972 899 BHARTI BT INTERNET LTD.
8151 1075 865 UniNet S.A. de C.V.
9583 1106 724 Sify Limited
22773 699 659 Cox Communications, Inc.
17488 663 629 Hathway IP Over Cable Interne
5668 584 567 CenturyTel Internet Holdings,
19262 719 548 Verizon Global Networks
6197 1034 533 BellSouth Network Solutions,
7545 610 533 TPG Internet Pty Ltd
19916 568 514 OLM LLC
18101 528 502 Reliance Infocom Ltd Internet
855 565 494 Canadian Research Network
4668 503 493 LG-EDS Systems Inc.
7029 569 488 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 /8:19 /9:9 /10:12 /11:34 /12:122
/13:235 /14:447 /15:851 /16:9345 /17:3804 /18:6284
/19:13429 /20:15133 /21:13621 /22:17698 /23:19059 /24:115250
/25:777 /26:813 /27:483 /28:59 /29:40 /30:69
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1080 1089 AT&T Worldnet Services
11492 1011 1025 Cable One
18566 981 999 Covad Communications
9583 946 1106 Sify Limited
7018 818 1502 AT&T WorldNet Services
2386 813 1091 AT&T Data Communications Serv
6197 797 1034 BellSouth Network Solutions,
23577 767 781 Korea Telecom (ATM-MPLS)
7011 684 781 Citizens Utilities
9498 634 972 BHARTI BT INTERNET LTD.
4766 588 782 Korea Telecom (KIX)
4755 582 1188 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 534 1276 Time Warner Telecom
4668 493 503 LG-EDS Systems Inc.
15270 489 522 PaeTec.net -a division of Pae
17488 484 663 Hathway IP Over Cable Interne
855 463 565 Canadian Research Network
18101 454 528 Reliance Infocom Ltd Internet
5668 452 584 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:66 9:1 12:1791 15:19
16:3 17:3 18:8 20:35 24:948 25:1
32:53 38:295 40:57 41:114 44:2 47:4
52:4 55:1 56:3 57:26 58:335 59:361
60:263 61:905 62:961 63:1963 64:3108 65:2318
66:3259 67:792 68:643 69:1782 70:488 71:110
72:1247 73:1 74:332 75:243 76:33 77:133
80:824 81:795 82:603 83:378 84:436 85:765
86:374 87:463 88:251 89:840 90:19 91:264
97:1 116:11 121:166 122:521 123:73 124:761
125:924 128:271 129:220 130:124 131:351 132:51
133:10 134:193 135:38 136:194 137:83 138:193
139:55 140:482 141:149 142:370 143:214 144:290
145:43 146:323 147:147 148:385 149:143 150:115
151:124 152:93 153:121 154:4 155:252 156:153
157:182 158:161 159:154 160:103 161:90 162:235
163:142 164:450 165:404 166:247 167:277 168:498
169:120 170:394 171:15 172:1 189:244 190:561
192:5737 193:3782 194:3083 195:2205 196:938 198:3755
199:3282 200:4661 201:1012 202:7251 203:7404 204:3951
205:2104 206:2413 207:2882 208:2618 209:3594 210:2389
211:932 212:1318 213:1438 214:407 215:39 216:4004
217:1163 218:355 219:304 220:909 221:393 222:268
End of report
Report Website: http://thyme.apnic.net
