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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 31 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/31/0400
Analysis Summary
----------------
BGP routing table entries examined: 221673
Prefixes after maximum aggregation: 117366
Deaggregation factor: 1.89
Unique aggregates announced to Internet: 106563
Total ASes present in the Internet Routing Table: 25313
Prefixes per ASN: 8.76
Origin-only ASes present in the Internet Routing Table: 22038
Origin ASes announcing only one prefix: 10672
Transit ASes present in the Internet Routing Table: 3275
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1724741728
Equivalent to 102 /8s, 205 /16s and 120 /24s
Percentage of available address space announced: 46.5
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 116290
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 51057
Total APNIC prefixes after maximum aggregation: 19980
APNIC Deaggregation factor: 2.56
Prefixes being announced from the APNIC address blocks: 48048
Unique aggregates announced from the APNIC address blocks: 20337
APNIC Region origin ASes present in the Internet Routing Table: 2957
APNIC Prefixes per ASN: 16.25
APNIC Region origin ASes announcing only one prefix: 788
APNIC Region transit ASes present in the Internet Routing Table: 449
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 295761568
Equivalent to 17 /8s, 160 /16s and 246 /24s
Percentage of available APNIC address space announced: 73.3
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: 106883
Total ARIN prefixes after maximum aggregation: 62267
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78801
Unique aggregates announced from the ARIN address blocks: 30828
ARIN Region origin ASes present in the Internet Routing Table: 11605
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4464
ARIN Region transit ASes present in the Internet Routing Table: 1056
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 334390656
Equivalent to 19 /8s, 238 /16s and 101 /24s
Percentage of available ARIN address space announced: 73.8
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: 45759
Total RIPE prefixes after maximum aggregation: 29958
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42266
Unique aggregates announced from the RIPE address blocks: 28348
RIPE Region origin ASes present in the Internet Routing Table: 9688
RIPE Prefixes per ASN: 4.36
RIPE Region origin ASes announcing only one prefix: 5111
RIPE Region transit ASes present in the Internet Routing Table: 1560
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 307658752
Equivalent to 18 /8s, 86 /16s and 128 /24s
Percentage of available RIPE address space announced: 76.4
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
40960-44031
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: 15382
Total LACNIC prefixes after maximum aggregation: 4151
LACNIC Deaggregation factor: 3.71
Prefixes being announced from the LACNIC address blocks: 13468
Unique aggregates announced from the LACNIC address blocks: 7276
LACNIC Region origin ASes present in the Internet Routing Table: 794
LACNIC Prefixes per ASN: 16.96
LACNIC Region origin ASes announcing only one prefix: 255
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 39010304
Equivalent to 2 /8s, 83 /16s and 64 /24s
Percentage of available LACNIC address space announced: 58.1
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: 2582
Total AfriNIC prefixes after maximum aggregation: 998
AfriNIC Deaggregation factor: 2.59
Prefixes being announced from the AfriNIC address blocks: 1972
Unique aggregates announced from the AfriNIC address blocks: 1180
AfriNIC Region origin ASes present in the Internet Routing Table: 189
AfriNIC Prefixes per ASN: 10.43
AfriNIC Region origin ASes announcing only one prefix: 54
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: 6123008
Equivalent to 0 /8s, 93 /16s and 110 /24s
Percentage of available AfriNIC address space announced: 18.2
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 1289 9975 279 CHINANET-BACKBONE
4755 1224 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1039 108 16 Sify Limited
9498 986 469 69 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 779 35 706 Korea Telecom (ATM-MPLS)
17488 694 45 38 Hathway IP Over Cable Interne
7545 630 142 80 TPG Internet Pty Ltd
18101 552 116 38 Reliance Infocom Ltd Internet
1221 551 1954 425 Telstra Pty Ltd
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 464 120 76 Primus Telecommunications
4812 462 821 76 China Telecom (Shanghai)
7474 410 218 269 SingTel Optus Pty Ltd
4802 409 86 148 Wantree Development
9829 363 258 15 BSNL National Internet Backbo
2907 360 1700 302 SINET Japan
17557 356 37 169 Pakistan Telecom
4837 342 4693 157 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6160 991 AT&T WorldNet Services
4323 1273 1033 367 Time Warner Telecom
2386 1154 596 758 AT&T Data Communications Serv
6478 1100 343 121 AT&T Worldnet Services
11492 1070 104 22 Cable One
6197 1040 706 508 BellSouth Network Solutions,
18566 1010 288 9 Covad Communications
701 957 6614 733 UUNET Technologies, Inc.
174 954 6776 863 Cogent Communications
1239 814 2731 577 Sprint
20115 805 722 428 Charter Communications
7011 801 228 478 Citizens Utilities
19262 775 2694 207 Verizon Global Networks
209 742 3835 582 Qwest
22773 722 1892 44 Cox Communications, Inc.
5668 598 160 17 CenturyTel Internet Holdings,
7385 597 166 464 Linkport Communications
852 589 1090 371 Telus Advanced Communications
7029 588 488 80 Alltel Information Services,
721 570 21660 267 DLA Systems Automation Center
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 517 1939 410 UUNET - Commercial IP service
24863 345 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 306 4994 253 Deutsche Telekom AG
6746 279 128 255 Dynamic Network Technologies,
680 260 2044 251 DFN-IP service G-WiN
8220 250 459 241 COLT Telecommunications
3215 246 2280 94 France Telecom Transpac
8708 237 416 230 Romania Data Systems S.A.
3269 216 2647 74 TELECOM ITALIA
3352 207 1799 36 Ibernet, Internet Access Netw
8551 207 197 27 Bezeq International
3246 200 334 190 Song Networks
9116 198 136 25 Goldenlines main autonomous s
1257 196 1196 174 SWIPnet Swedish IP Network
12479 185 578 6 Uni2 Autonomous System
30890 183 15 90 SC Kappa Invexim SRL
3300 182 171 89 AUCS Communications Services
786 176 1795 176 The JANET IP Service
3292 174 1300 154 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1327 1870 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 367 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 317 238 12 VTR PUNTO NET S.A.
7303 284 143 28 Telecom Argentina Stet-France
6471 267 74 32 ENTEL CHILE S.A.
14117 244 17 14 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 224 168 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 195 23 12 NEWCOM AMERICAS
10620 186 53 24 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
14522 167 27 8 SatNet S.A.
7910 157 11 31 ANDINET ON LINE
23216 156 19 42 RAMtelecom Telecomunicaciones
21826 155 27 59 INTERCABLE
19429 153 94 43 E.T.B.
7738 143 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 866 219 The Internet Solution
8452 228 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
15475 134 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 119 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 56 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 37 21 29 Johnnic e-Ventures
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33766 26 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1224 1152 Videsh Sanchar Nigam Ltd. Aut
8151 1327 1116 UniNet S.A. de C.V.
11492 1070 1048 Cable One
9583 1039 1023 Sify Limited
4134 1289 1010 CHINANET-BACKBONE
18566 1010 1001 Covad Communications
6478 1100 979 AT&T Worldnet Services
9498 986 917 BHARTI BT INTERNET LTD.
4323 1273 906 Time Warner Telecom
22773 722 678 Cox Communications, Inc.
17488 694 656 Hathway IP Over Cable Interne
5668 598 581 CenturyTel Internet Holdings,
19262 775 568 Verizon Global Networks
7545 630 550 TPG Internet Pty Ltd
6197 1040 532 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 552 514 Reliance Infocom Ltd Internet
7029 588 508 Alltel Information Services,
15270 542 507 PaeTec.net -a division of Pae
4668 507 497 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65019 PRIVATE 63.138.117.0/24 19034 Norcom Networks Corp
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
94.110.196.0/24 21161 Bechtle Autonomous System
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
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 /10:14 /11:35 /12:123
/13:238 /14:452 /15:872 /16:9420 /17:3895 /18:6375
/19:13507 /20:15470 /21:14003 /22:18190 /23:19392 /24:117485
/25:774 /26:825 /27:475 /28:67 /29:8 /30:13
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1091 1100 AT&T Worldnet Services
11492 1061 1070 Cable One
18566 992 1010 Covad Communications
9583 873 1039 Sify Limited
2386 850 1154 AT&T Data Communications Serv
7018 808 1501 AT&T WorldNet Services
6197 795 1040 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
8151 704 1327 UniNet S.A. de C.V.
7011 702 801 Citizens Utilities
9498 658 986 BHARTI BT INTERNET LTD.
4755 622 1224 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 521 1273 Time Warner Telecom
17488 515 694 Hathway IP Over Cable Interne
15270 509 542 PaeTec.net -a division of Pae
4668 497 507 LG-EDS Systems Inc.
18101 470 552 Reliance Infocom Ltd Internet
855 465 567 Canadian Research Network
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:73 9:1 12:1809 15:18
16:3 17:3 18:8 20:38 24:946 25:1
32:52 33:2 38:319 40:61 41:145 44:2
47:5 52:4 55:3 56:3 57:24 58:410
59:391 60:297 61:941 62:896 63:1982 64:3121
65:2369 66:3290 67:816 68:637 69:1841 70:515
71:105 72:1315 73:1 74:484 75:262 76:74
77:209 78:2 80:815 81:807 82:573 83:389
84:410 85:763 86:342 87:453 88:277 89:872
90:7 91:321 94:1 97:6 116:98 121:187
122:534 123:105 124:799 125:930 128:283 129:224
130:130 131:365 132:52 133:9 134:192 135:38
136:186 137:80 138:140 139:70 140:479 141:171
142:369 143:234 144:273 145:43 146:317 147:118
148:398 149:144 150:115 151:159 152:92 153:124
154:4 155:254 156:152 157:186 158:158 159:156
160:107 161:91 162:234 163:185 164:451 165:405
166:240 167:284 168:494 169:120 170:403 171:16
172:1 189:549 190:630 192:5772 193:3860 194:3140
195:2235 196:937 198:3739 199:3292 200:4814 201:1031
202:7271 203:7524 204:3971 205:2054 206:2363 207:2923
208:2702 209:3574 210:2450 211:969 212:1325 213:1462
214:413 215:39 216:4059 217:1155 218:354 219:379
220:953 221:374 222:249
End of report
