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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 30 May, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 256724
Prefixes after maximum aggregation: 127590
Deaggregation factor: 2.01
Unique aggregates announced to Internet: 124917
Total ASes present in the Internet Routing Table: 28327
Prefixes per ASN: 9.06
Origin-only ASes present in the Internet Routing Table: 24709
Origin ASes announcing only one prefix: 11891
Transit ASes present in the Internet Routing Table: 3618
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 18
Max AS path prepend of ASN (43380) 13
Prefixes from unregistered ASNs in the Routing Table: 636
Unregistered ASNs in the Routing Table: 238
Number of 32-bit ASNs allocated by the RIRs: 49
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 781
Number of addresses announced to Internet: 1873335104
Equivalent to 111 /8s, 168 /16s and 211 /24s
Percentage of available address space announced: 50.5
Percentage of allocated address space announced: 61.4
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 72.0
Total number of prefixes smaller than registry allocations: 123690
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 58880
Total APNIC prefixes after maximum aggregation: 21652
APNIC Deaggregation factor: 2.72
Prefixes being announced from the APNIC address blocks: 55894
Unique aggregates announced from the APNIC address blocks: 23909
APNIC Region origin ASes present in the Internet Routing Table: 3254
APNIC Prefixes per ASN: 17.18
APNIC Region origin ASes announcing only one prefix: 854
APNIC Region transit ASes present in the Internet Routing Table: 503
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 350393696
Equivalent to 20 /8s, 226 /16s and 149 /24s
Percentage of available APNIC address space announced: 74.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 114/8,
115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8,
122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8,
210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 117775
Total ARIN prefixes after maximum aggregation: 65199
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 87325
Unique aggregates announced from the ARIN address blocks: 34411
ARIN Region origin ASes present in the Internet Routing Table: 12177
ARIN Prefixes per ASN: 7.17
ARIN Region origin ASes announcing only one prefix: 4694
ARIN Region transit ASes present in the Internet Routing Table: 1129
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 357753600
Equivalent to 21 /8s, 82 /16s and 227 /24s
Percentage of available ARIN address space announced: 73.5
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, 46080-47103
ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 55364
Total RIPE prefixes after maximum aggregation: 33874
RIPE Deaggregation factor: 1.63
Prefixes being announced from the RIPE address blocks: 50551
Unique aggregates announced from the RIPE address blocks: 33983
RIPE Region origin ASes present in the Internet Routing Table: 11393
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5953
RIPE Region transit ASes present in the Internet Routing Table: 1724
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 359619712
Equivalent to 21 /8s, 111 /16s and 92 /24s
Percentage of available RIPE address space announced: 82.4
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
40960-45055, 47104-48127
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 20185
Total LACNIC prefixes after maximum aggregation: 5139
LACNIC Deaggregation factor: 3.93
Prefixes being announced from the LACNIC address blocks: 18493
Unique aggregates announced from the LACNIC address blocks: 10319
LACNIC Region origin ASes present in the Internet Routing Table: 951
LACNIC Prefixes per ASN: 19.45
LACNIC Region origin ASes announcing only one prefix: 314
LACNIC Region transit ASes present in the Internet Routing Table: 156
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 51737728
Equivalent to 3 /8s, 21 /16s and 116 /24s
Percentage of available LACNIC address space announced: 51.4
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3886
Total AfriNIC prefixes after maximum aggregation: 1198
AfriNIC Deaggregation factor: 3.24
Prefixes being announced from the AfriNIC address blocks: 4192
Unique aggregates announced from the AfriNIC address blocks: 1858
AfriNIC Region origin ASes present in the Internet Routing Table: 242
AfriNIC Prefixes per ASN: 17.32
AfriNIC Region origin ASes announcing only one prefix: 76
AfriNIC Region transit ASes present in the Internet Routing Table: 51
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12312320
Equivalent to 0 /8s, 187 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 36.7
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 1640 387 90 Videsh Sanchar Nigam Ltd. Aut
9498 1165 550 60 BHARTI BT INTERNET LTD.
9583 1090 140 15 Sify Limited
17488 1073 71 75 Hathway IP Over Cable Interne
4766 849 6006 343 Korea Telecom (KIX)
23577 821 34 702 Korea Telecom (ATM-MPLS)
4134 820 12693 320 CHINANET-BACKBONE
18101 689 150 53 Reliance Infocom Ltd Internet
9829 598 450 12 BSNL National Internet Backbo
1221 547 1919 420 Telstra Pty Ltd
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 1993 3087 178 bellsouth.net, inc.
4323 1467 1045 379 Time Warner Telecom
2386 1437 659 872 AT&T Data Communications Serv
7018 1378 5830 983 AT&T WorldNet Services
11492 1222 148 12 Cable One
7011 1078 299 606 Citizens Utilities
18566 1044 296 10 Covad Communications
1785 1022 510 105 AppliedTheory Corporation
6197 1006 597 507 BellSouth Network Solutions,
174 971 6837 806 Cogent Communications
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 409 1772 368 TDC Tele Danmark
8452 356 188 7 TEDATA
3301 339 1460 307 TeliaNet Sweden
3320 317 7044 266 Deutsche Telekom AG
8866 297 77 21 Bulgarian Telecommunication C
5462 291 666 26 Telewest Broadband
3215 285 2718 94 France Telecom Transpac
8551 283 269 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
6746 264 125 240 Dynamic Network Technologies,
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1234 2464 228 UniNet S.A. de C.V.
11830 603 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
7303 463 227 68 Telecom Argentina Stet-France
16814 426 27 10 NSS, S.A.
6471 414 85 46 ENTEL CHILE S.A.
11172 410 118 68 Servicios Alestra S.A de C.V
10620 391 99 67 TVCABLE BOGOTA
14117 375 23 9 Telefonica del Sur S.A.
20299 338 23 89 NEWCOM AMERICAS
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 472 61 28 LINKdotNET AS number
3741 286 853 223 The Internet Solution
20858 224 34 3 EgyNet
2018 187 173 82 Tertiary Education Network
5713 169 575 103 Telkom SA Ltd
6713 145 136 12 Itissalat Al-MAGHRIB
33783 134 10 12 EEPAD TISP TELECOM & INTERNET
5536 121 8 16 Internet Egypt Network
29571 100 13 8 Ci Telecom Autonomous system
33776 100 6 3 Starcomms Nigeria Limited
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 1993 3087 178 bellsouth.net, inc.
4755 1640 387 90 Videsh Sanchar Nigam Ltd. Aut
4323 1467 1045 379 Time Warner Telecom
2386 1437 659 872 AT&T Data Communications Serv
7018 1378 5830 983 AT&T WorldNet Services
8151 1234 2464 228 UniNet S.A. de C.V.
11492 1222 148 12 Cable One
9498 1165 550 60 BHARTI BT INTERNET LTD.
9583 1090 140 15 Sify Limited
7011 1078 299 606 Citizens Utilities
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1640 1550 Videsh Sanchar Nigam Ltd. Aut
11492 1222 1210 Cable One
9498 1165 1105 BHARTI BT INTERNET LTD.
4323 1467 1088 Time Warner Telecom
9583 1090 1075 Sify Limited
18566 1044 1034 Covad Communications
8151 1234 1006 UniNet S.A. de C.V.
17488 1073 998 Hathway IP Over Cable Interne
1785 1022 917 AppliedTheory Corporation
22773 945 883 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 701 UUNET Technologies,
22492 UNALLOCATED 12.2.46.0/24 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.51.159.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.75.192.0/18 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.apnic.net/current/data-add-IANA
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 /10:16 /11:42 /12:142
/13:279 /14:512 /15:1015 /16:9937 /17:4374 /18:7276
/19:15494 /20:17923 /21:17462 /22:21811 /23:22884 /24:135222
/25:785 /26:929 /27:492 /28:82 /29:9 /30:1
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 1229 1993 bellsouth.net, inc.
11492 1204 1222 Cable One
2386 1136 1437 AT&T Data Communications Serv
18566 1025 1044 Covad Communications
4755 988 1640 Videsh Sanchar Nigam Ltd. Aut
7011 965 1078 Citizens Utilities
6478 945 946 AT&T Worldnet Services
9583 936 1090 Sify Limited
17488 886 1073 Hathway IP Over Cable Interne
9498 846 1165 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:108 12:2056 13:1 15:20 16:3
17:5 18:13 20:35 24:1076 25:1 32:61
33:3 38:424 40:93 41:649 43:1 44:2
47:12 52:3 55:3 56:3 57:23 58:513
59:466 60:443 61:994 62:1110 63:1946 64:3326
65:2408 66:3648 67:1204 68:684 69:2250 70:630
71:125 72:1760 73:5 74:981 75:216 76:323
77:663 78:618 79:171 80:904 81:860 82:593
83:393 84:569 85:1017 86:418 87:672 88:325
89:1211 90:11 91:1260 92:186 93:502 96:32
97:20 98:178 99:3 114:17 116:650 117:325
118:139 119:430 120:44 121:534 122:774 123:352
124:820 125:1141 128:325 129:201 130:131 131:405
132:66 133:9 134:178 135:33 136:220 137:89
138:151 139:69 140:484 141:99 142:399 143:316
144:357 145:51 146:362 147:153 148:505 149:183
150:130 151:196 152:141 153:135 154:10 155:273
156:174 157:271 158:167 159:222 160:257 161:113
162:233 163:186 164:525 165:448 166:315 167:322
168:608 169:131 170:427 171:29 172:10 189:175
190:2015 192:5801 193:4104 194:3210 195:2445 196:1081
198:3743 199:3261 200:5628 201:1429 202:7612 203:7889
204:3992 205:2069 206:2401 207:2765 208:3353 209:3429
210:2511 211:1023 212:1395 213:1651 214:471 215:49
216:4349 217:1189 218:346 219:415 220:1079 221:457
222:308
End of report
