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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 28 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 209073
Prefixes after maximum aggregation: 112715
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 100962
Total ASes present in the Internet Routing Table: 24189
Origin-only ASes present in the Internet Routing Table: 21069
Origin ASes announcing only one prefix: 10185
Transit ASes present in the Internet Routing Table: 3120
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 2
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: 1667757068
Equivalent to 99 /8s, 103 /16s and 244 /24s
Percentage of available address space announced: 45.0
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 107040
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46656
Total APNIC prefixes after maximum aggregation: 18716
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 44101
Unique aggregates announced from the APNIC address blocks: 18445
APNIC Region origin ASes present in the Internet Routing Table: 2823
APNIC Region origin ASes announcing only one prefix: 785
APNIC Region transit ASes present in the Internet Routing Table: 421
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 281602144
Equivalent to 16 /8s, 200 /16s and 232 /24s
Percentage of available APNIC address space announced: 69.8
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: 102756
Total ARIN prefixes after maximum aggregation: 60756
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75705
Unique aggregates announced from the ARIN address blocks: 29061
ARIN Region origin ASes present in the Internet Routing Table: 11286
ARIN Region origin ASes announcing only one prefix: 4326
ARIN Region transit ASes present in the Internet Routing Table: 1032
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 314784128
Equivalent to 18 /8s, 195 /16s and 57 /24s
Percentage of available ARIN address space announced: 69.5
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: 43310
Total RIPE prefixes after maximum aggregation: 28265
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40004
Unique aggregates announced from the RIPE address blocks: 26614
RIPE Region origin ASes present in the Internet Routing Table: 9068
RIPE Region origin ASes announcing only one prefix: 4769
RIPE Region transit ASes present in the Internet Routing Table: 1467
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 287229604
Equivalent to 17 /8s, 30 /16s and 198 /24s
Percentage of available RIPE address space announced: 77.8
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, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13821
Total LACNIC prefixes after maximum aggregation: 4023
LACNIC Deaggregation factor: 3.44
Prefixes being announced from the LACNIC address blocks: 11858
Unique aggregates announced from the LACNIC address blocks: 7260
LACNIC Region origin ASes present in the Internet Routing Table: 761
LACNIC Region origin ASes announcing only one prefix: 251
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36617472
Equivalent to 2 /8s, 46 /16s and 189 /24s
Percentage of available LACNIC address space announced: 54.6
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: 2528
Total AfriNIC prefixes after maximum aggregation: 953
AfriNIC Deaggregation factor: 2.65
Prefixes being announced from the AfriNIC address blocks: 1801
Unique aggregates announced from the AfriNIC address blocks: 1145
AfriNIC Region origin ASes present in the Internet Routing Table: 174
AfriNIC Region origin ASes announcing only one prefix: 53
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5382400
Equivalent to 0 /8s, 82 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 16.0
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 1279 8663 273 CHINANET-BACKBONE
4755 1091 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1029 109 16 Sify Limited
9498 933 467 64 BHARTI BT INTERNET LTD.
23577 773 34 700 Korea Telecom (ATM-MPLS)
4766 763 4944 313 Korea Telecom (KIX)
17488 588 37 20 Hathway IP Over Cable Interne
1221 569 1698 440 Telstra Pty Ltd
7545 561 126 75 TPG Internet Pty Ltd
18101 514 103 27 Reliance Infocom Ltd Internet
17676 503 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 435 763 69 China Telecom (Shanghai)
17974 364 129 14 PT TELEKOMUNIKASI INDONESIA
4802 360 86 149 Wantree Development
17849 353 33 93 Telecommunications Technology
17557 348 34 168 Pakistan Telecom
2907 336 1749 309 SINET Japan
4837 334 4071 146 chinanet IDC center beijing n
7474 315 212 244 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1553 6127 998 AT&T WorldNet Services
2386 1101 569 727 AT&T Data Communications Serv
4323 1061 819 297 Time Warner Telecom
6197 1023 647 501 BellSouth Network Solutions,
18566 989 288 9 Covad Communications
174 934 6789 864 Cogent Communications
701 934 6695 743 UUNET Technologies, Inc.
11492 912 99 15 Cable One
1239 828 2730 578 Sprint
19262 808 2576 180 Verizon Global Networks
20115 795 689 412 Charter Communications
7011 731 218 454 Citizens Utilities
22773 723 1872 41 Cox Communications, Inc.
209 716 3750 563 Qwest
721 685 21836 279 DLA Systems Automation Center
852 608 1093 393 Telus Advanced Communications
5668 579 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 565 250 73 Canadian Research Network
6198 552 521 258 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1898 425 UUNET - Commercial IP service
3301 305 1199 287 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
24863 298 45 25 LINKdotNET AS number
8220 270 474 262 COLT Telecommunications
6746 266 95 245 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 237 2192 93 France Telecom Transpac
8708 234 283 221 Romania Data Systems S.A.
1257 224 1097 173 SWIPnet Swedish IP Network
3269 213 2391 71 TELECOM ITALIA
30890 212 18 91 SC Kappa Invexim SRL
3246 207 354 197 Song Networks
5416 205 13 13 BATELCO-BH
8551 192 193 28 Bezeq International
20858 189 34 3 This AS will be used to conne
3352 182 1767 31 Ibernet, Internet Access Netw
3300 178 171 89 AUCS Communications Services
12479 176 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 921 2046 204 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 385 113 83 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 254 74 30 ENTEL CHILE S.A.
14117 239 17 14 Telefonica del Sur S.A.
11556 235 116 6 Cable-Wireless Panama
7303 233 104 34 Telecom Argentina Stet-France
6147 227 182 20 Telefonica Del Peru
6503 215 168 91 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
21826 160 22 39 INTERCABLE
7910 152 11 32 ANDINET ON LINE
20299 150 23 14 NEWCOM AMERICAS
23216 147 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 141 9 24 Telconet
19429 139 84 34 E.T.B.
14522 138 21 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 225 60 6 TEDATA
15475 153 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 113 6 6 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 54 12 4 Sudatel Internet Exchange Aut
23889 53 16 13 MAURITIUS TELECOM
5713 45 294 35 Telkom SA Ltd
12455 39 6 3 Jambonet Autonomous system
33774 38 12 22 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
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1091 1015 Videsh Sanchar Nigam Ltd. Aut
9583 1029 1013 Sify Limited
4134 1279 1006 CHINANET-BACKBONE
18566 989 980 Covad Communications
11492 912 897 Cable One
9498 933 869 BHARTI BT INTERNET LTD.
4323 1061 764 Time Warner Telecom
8151 921 717 UniNet S.A. de C.V.
22773 723 682 Cox Communications, Inc.
19262 808 628 Verizon Global Networks
17488 588 568 Hathway IP Over Cable Interne
5668 579 560 CenturyTel Internet Holdings,
6197 1023 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
855 565 492 Canadian Research Network
18101 514 487 Reliance Infocom Ltd Internet
7545 561 486 TPG Internet Pty Ltd
15270 500 466 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 763 450 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
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 /9:10 /10:13 /11:33 /12:115
/13:226 /14:414 /15:812 /16:9196 /17:3678 /18:5966
/19:12961 /20:14583 /21:13001 /22:16653 /23:17893 /24:111775
/25:664 /26:458 /27:377 /28:63 /29:39 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 971 989 Covad Communications
11492 898 912 Cable One
9583 858 1029 Sify Limited
7018 857 1553 AT&T WorldNet Services
2386 827 1101 AT&T Data Communications Serv
6197 795 1023 BellSouth Network Solutions,
23577 759 773 Korea Telecom (ATM-MPLS)
7011 634 731 Citizens Utilities
9498 592 933 BHARTI BT INTERNET LTD.
4766 571 763 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 500 1091 Videsh Sanchar Nigam Ltd. Aut
15270 468 500 PaeTec.net -a division of Pae
855 464 565 Canadian Research Network
18101 446 514 Reliance Infocom Ltd Internet
5668 445 579 CenturyTel Internet Holdings,
17488 411 588 Hathway IP Over Cable Interne
1239 408 828 Sprint
33588 403 425 Bresnan Communications, LLC.
6198 390 552 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:61 9:1 12:1657 13:1
15:15 16:3 17:3 18:5 20:36 24:873
25:1 32:54 38:277 40:57 41:65 44:2
47:10 52:4 55:1 56:3 57:25 58:292
59:376 60:203 61:953 62:1024 63:1905 64:3208
65:2298 66:3138 67:714 68:637 69:1716 70:426
71:133 72:1143 73:1 74:148 75:64 76:22
77:3 80:830 81:775 82:645 83:349 84:493
85:759 86:463 87:478 88:276 89:776 90:2
91:177 97:1 116:1 117:1 118:1 119:1
120:1 121:129 122:68 123:26 124:575 125:787
128:304 129:221 130:126 131:317 132:49 133:9
134:182 135:44 136:176 137:113 138:190 139:53
140:519 141:134 142:370 143:212 144:266 145:66
146:307 147:138 148:364 149:190 150:115 151:117
152:90 153:119 154:5 155:250 156:125 157:172
158:170 159:147 160:97 161:88 162:228 163:160
164:450 165:288 166:246 167:281 168:490 169:121
170:378 171:15 172:1 189:131 190:357 192:5735
193:3654 194:2917 195:2210 196:929 198:3774 199:3276
200:4641 201:964 202:7137 203:7281 204:3944 205:2087
206:2434 207:2901 208:2430 209:3567 210:2335 211:880
212:1305 213:1416 214:394 215:39 216:4061 217:1177
218:358 219:268 220:844 221:367 222:277
End of report
Report Website: http://thyme.apnic.net
