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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 01 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 183086
Prefixes after maximum aggregation: 100803
Deaggregation factor: 1.82
Unique aggregates announced to Internet: 90951
Total ASes present in the Internet Routing Table: 22692
Origin-only ASes present in the Internet Routing Table: 19698
Origin ASes announcing only one prefix: 9772
Transit ASes present in the Internet Routing Table: 2994
Transit-only ASes present in the Internet Routing Table: 213
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1479172620
Equivalent to 88 /8s, 42 /16s and 98 /24s
Percentage of available address space announced: 39.9
Percentage of allocated address space announced: 54.9
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 89696
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36158
Total APNIC prefixes after maximum aggregation: 15034
APNIC Deaggregation factor: 2.41
Prefixes being announced from the APNIC address blocks: 33615
Unique aggregates announced from the APNIC address blocks: 16563
APNIC Region origin ASes present in the Internet Routing Table: 2635
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 400
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 178713952
Equivalent to 10 /8s, 166 /16s and 245 /24s
Percentage of available APNIC address space announced: 44.3
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: 95513
Total ARIN prefixes after maximum aggregation: 56971
ARIN Deaggregation factor: 1.68
Prefixes being announced from the ARIN address blocks: 68898
Unique aggregates announced from the ARIN address blocks: 25806
ARIN Region origin ASes present in the Internet Routing Table: 10841
ARIN Region origin ASes announcing only one prefix: 4237
ARIN Region transit ASes present in the Internet Routing Table: 1006
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 299736576
Equivalent to 17 /8s, 221 /16s and 158 /24s
Percentage of available ARIN address space announced: 66.2
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: 35520
Total RIPE prefixes after maximum aggregation: 23947
RIPE Deaggregation factor: 1.48
Prefixes being announced from the RIPE address blocks: 31669
Unique aggregates announced from the RIPE address blocks: 21701
RIPE Region origin ASes present in the Internet Routing Table: 8082
RIPE Region origin ASes announcing only one prefix: 4422
RIPE Region transit ASes present in the Internet Routing Table: 1389
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 241162404
Equivalent to 14 /8s, 95 /16s and 216 /24s
Percentage of available RIPE address space announced: 65.3
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, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13689
Total LACNIC prefixes after maximum aggregation: 3969
LACNIC Deaggregation factor: 3.45
Prefixes being announced from the LACNIC address blocks: 11900
Unique aggregates announced from the LACNIC address blocks: 7274
LACNIC Region origin ASes present in the Internet Routing Table: 760
LACNIC Region origin ASes announcing only one prefix: 250
LACNIC Region transit ASes present in the Internet Routing Table: 136
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36670208
Equivalent to 2 /8s, 47 /16s and 139 /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: 2204
Total AfriNIC prefixes after maximum aggregation: 880
AfriNIC Deaggregation factor: 2.50
Prefixes being announced from the AfriNIC address blocks: 1816
Unique aggregates announced from the AfriNIC address blocks: 1151
AfriNIC Region origin ASes present in the Internet Routing Table: 160
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 30
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5384704
Equivalent to 0 /8s, 82 /16s and 42 /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
4755 1125 343 70 Videsh Sanchar Nigam Ltd. Aut
9498 937 467 64 BHARTI BT INTERNET LTD.
4134 595 5263 182 CHINANET-BACKBONE
17488 592 37 21 Hathway IP Over Cable Interne
1221 571 1698 440 Telstra Pty Ltd
9583 441 53 13 Sify Limited
7545 420 94 72 TPG Internet Pty Ltd
4802 359 86 149 Wantree Development
9443 354 79 73 Primus Telecommunications
4766 353 2603 123 Korea Telecom (KIX)
17557 341 30 164 Pakistan Telecom
2907 336 1749 309 SINET Japan
7474 320 212 249 SingTel Optus Pty Ltd
23577 320 12 288 Korea Telecom (ATM-MPLS)
17849 306 30 56 Telecommunications Technology
10139 301 31 6 Meridian Telekoms
2764 272 209 189 AAPT Limited
4812 254 458 43 China Telecom (Shanghai)
9837 243 73 156 Powertel Ltd
9829 240 257 10 National Internet Backbone
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1468 6094 957 AT&T WorldNet Services
2386 1090 567 719 AT&T Data Communications Serv
18566 989 288 9 Covad Communications
6197 983 640 477 BellSouth Network Solutions,
174 919 6748 850 Cogent Communications
11492 914 100 16 Cable One
701 903 6620 717 UUNET Technologies, Inc.
4323 896 783 284 Time Warner Telecom
1239 805 2721 558 Sprint
19262 799 2591 179 Verizon Global Networks
20115 796 692 413 Charter Communications
22773 721 1870 40 Cox Communications, Inc.
7011 693 215 442 Citizens Utilities
209 682 3646 533 Qwest
721 615 15692 278 DLA Systems Automation Center
852 602 1064 387 Telus Advanced Communications
5668 579 161 19 CenturyTel Internet Holdings,
855 561 250 73 Canadian Research Network
3602 526 123 105 Sprint Canada, Inc.
6198 508 514 235 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 479 1575 389 UUNET - Commercial IP service
3301 296 985 278 TeliaNet Sweden
3320 289 4060 241 Deutsche Telekom AG
24863 281 40 22 LINKdotNET AS number
680 256 2028 250 DFN-IP service G-WiN
6746 242 91 225 Dynamic Network Technologies,
8220 236 319 228 COLT Telecommunications
3215 228 2093 84 France Telecom Transpac
30890 214 19 91 SC Kappa Invexim SRL
8708 199 275 189 Romania Data Systems S.A.
20858 196 34 3 This AS will be used to conne
3246 190 299 180 Song Networks
3269 183 2192 56 TELECOM ITALIA
8551 180 173 25 Bezeq International
1257 179 996 164 SWIPnet Swedish IP Network
3300 176 155 89 AUCS Communications Services
12479 176 576 5 Uni2 Autonomous System
5416 174 11 8 BATELCO-BH
786 170 1761 170 The JANET IP Service
25186 151 219 99 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 946 2047 203 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 384 113 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.
7303 235 105 35 Telecom Argentina Stet-France
11556 235 116 6 Cable-Wireless Panama
6147 226 180 24 Telefonica Del Peru
6503 215 168 90 AVANTEL, S.A.
14117 215 14 12 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
21826 157 26 49 INTERCABLE
7910 152 11 32 ANDINET ON LINE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 144 22 16 NEWCOM AMERICAS
19169 141 9 24 Telconet
14522 139 22 9 SatNet S.A.
19429 139 84 34 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 193 56 4 TEDATA
2018 138 309 113 Tertiary Education Network
6713 138 127 10 Itissalat Al-MAGHRIB
33783 113 6 6 EEPAD TISP TELECOM & INTERNET
15475 105 20 3 Nile Online
5536 94 6 11 Internet Egypt Network
24835 74 44 5 RAYA Telecom - Egypt
2905 72 171 65 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
23889 53 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
15706 38 10 3 Sudatel Internet Exchange Aut
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
33774 31 11 17 AS Number for Telecom Algeria
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
21491 21 17 2 UTL On-line is RF broadband I
11259 18 2 6 Angola Telecom
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1125 1055 Videsh Sanchar Nigam Ltd. Aut
18566 989 980 Covad Communications
11492 914 898 Cable One
9498 937 873 BHARTI BT INTERNET LTD.
8151 946 743 UniNet S.A. de C.V.
22773 721 681 Cox Communications, Inc.
19262 799 620 Verizon Global Networks
4323 896 612 Time Warner Telecom
17488 592 571 Hathway IP Over Cable Interne
5668 579 560 CenturyTel Internet Holdings,
6197 983 506 BellSouth Network Solutions,
855 561 488 Canadian Research Network
15270 502 470 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
9583 441 428 Sify Limited
3602 526 421 Sprint Canada, Inc.
4134 595 413 CHINANET-BACKBONE
33588 425 402 Bresnan Communications, LLC.
20115 796 383 Charter Communications
6517 414 382 Yipes Communications, Inc.
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
1.1.1.0/24 4761 INDOSATNET-ASN
7.1.1.0/24 1239 Sprint
39.55.39.0/24 7473 Singapore Telecom
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
170.78.162.0/24 7473 Singapore Telecom
172.33.1.0/24 7018 AT&T WorldNet Services
178.35.93.0/24 7473 Singapore Telecom
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
184.32.211.0/24 7473 Singapore Telecom
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 /10:11 /11:29 /12:101
/13:191 /14:362 /15:702 /16:8215 /17:3040 /18:4842
/19:9962 /20:11922 /21:11443 /22:14704 /23:16062 /24:100306
/25:427 /26:311 /27:206 /28:66 /29:40 /30:86
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 971 989 Covad Communications
11492 900 914 Cable One
2386 813 1090 AT&T Data Communications Serv
7018 782 1468 AT&T WorldNet Services
6197 757 983 BellSouth Network Solutions,
7011 596 693 Citizens Utilities
9498 595 937 BHARTI BT INTERNET LTD.
4755 550 1125 Videsh Sanchar Nigam Ltd. Aut
15270 471 502 PaeTec.net -a division of Pae
855 460 561 Canadian Research Network
5668 446 579 CenturyTel Internet Holdings,
17488 415 592 Hathway IP Over Cable Interne
33588 403 425 Bresnan Communications, LLC.
1239 392 805 Sprint
6517 388 414 Yipes Communications, Inc.
22773 382 721 Cox Communications, Inc.
7066 377 474 Virginia Polytechnic Institut
11830 362 482 Instituto Costarricense de El
19916 351 356 OLM LLC
6198 348 508 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:9 6:1 7:1 8:62 9:1
12:1651 13:1 15:15 16:3 17:3 18:5
20:36 24:870 25:1 32:53 38:280 39:1
40:57 41:66 44:2 46:1 47:10 52:4
55:1 56:3 57:25 58:301 59:378 60:203
61:903 62:1053 63:1902 64:3223 65:2301 66:3145
67:704 68:642 69:1714 70:429 71:133 72:1178
73:1 74:150 75:65 76:22 77:7 80:835
81:783 82:649 83:347 84:512 85:762 86:465
87:479 88:279 89:787 90:1 91:193 97:1
116:1 117:1 118:1 119:1 120:1 121:212
122:69 123:32 124:584 125:798 128:306 129:219
130:126 131:342 132:47 133:9 134:183 135:44
136:180 137:113 138:191 139:53 140:519 141:138
142:371 143:214 144:271 145:67 146:305 147:140
148:369 149:190 150:115 151:117 152:90 153:119
154:5 155:250 156:124 157:174 158:169 159:148
160:98 161:83 162:228 163:162 164:451 165:289
166:247 167:282 168:495 169:120 170:384 171:15
172:1 178:1 184:1 189:151 190:356 191:1
192:5744 193:3666 194:2930 195:2207 196:938 198:3764
199:3279 200:4649 201:967 202:7192 203:7329 204:3960
205:2106 206:2416 207:2889 208:2439 209:3596 210:1752
End of report
Report Website: http://thyme.apnic.net
