Routing Table Report 00:00 GMT Wed 02 Sep, 2009
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 301575
Prefixes after maximum aggregation: 140162
Deaggregation factor: 2.15
Unique aggregates announced to Internet: 146901
Total ASes present in the Internet Routing Table: 32126
Prefixes per ASN: 9.39
Origin-only ASes present in the Internet Routing Table: 27891
Origin ASes announcing only one prefix: 13587
Transit ASes present in the Internet Routing Table: 4235
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 24
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 472
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 257
Prefixes from 32-bit ASNs in the Routing Table: 103
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 327
Number of addresses announced to Internet: 2102643338
Equivalent to 125 /8s, 83 /16s and 202 /24s
Percentage of available address space announced: 56.7
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.7
Total number of prefixes smaller than registry allocations: 145947
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71361
Total APNIC prefixes after maximum aggregation: 25226
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 70816
Unique aggregates announced from the APNIC address blocks: 31614
APNIC Region origin ASes present in the Internet Routing Table: 3763
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1029
APNIC Region transit ASes present in the Internet Routing Table: 583
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 493016768
Equivalent to 29 /8s, 98 /16s and 214 /24s
Percentage of available APNIC address space announced: 84.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 43/8, 58/8, 59/8, 60/8, 61/8, 110/8, 111/8,
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, 175/8, 180/8, 182/8, 183/8, 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: 126716
Total ARIN prefixes after maximum aggregation: 66887
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 127049
Unique aggregates announced from the ARIN address blocks: 52613
ARIN Region origin ASes present in the Internet Routing Table: 13232
ARIN Prefixes per ASN: 9.60
ARIN Region origin ASes announcing only one prefix: 5112
ARIN Region transit ASes present in the Internet Routing Table: 1313
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 1013629589
Equivalent to 60 /8s, 106 /16s and 194 /24s
Percentage of available ARIN address space announced: 88.8
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, 46080-47103
53248-55295
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8,
30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8,
44/8, 45/8, 47/8, 48/8, 52/8, 54/8, 55/8,
56/8, 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, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 69043
Total RIPE prefixes after maximum aggregation: 40024
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 68924
Unique aggregates announced from the RIPE address blocks: 45647
RIPE Region origin ASes present in the Internet Routing Table: 13445
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 6987
RIPE Region transit ASes present in the Internet Routing Table: 2023
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 500640296
Equivalent to 29 /8s, 215 /16s and 42 /24s
Percentage of available RIPE address space announced: 99.5
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, 47104-52223
RIPE Address Blocks 25/8, 51/8, 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, 109/8, 178/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 27788
Total LACNIC prefixes after maximum aggregation: 6220
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 27757
Unique aggregates announced from the LACNIC address blocks: 14105
LACNIC Region origin ASes present in the Internet Routing Table: 1173
LACNIC Prefixes per ASN: 23.66
LACNIC Region origin ASes announcing only one prefix: 371
LACNIC Region transit ASes present in the Internet Routing Table: 193
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 73724168
Equivalent to 4 /8s, 100 /16s and 241 /24s
Percentage of available LACNIC address space announced: 73.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247
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: 6309
Total AfriNIC prefixes after maximum aggregation: 1561
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6702
Unique aggregates announced from the AfriNIC address blocks: 2663
AfriNIC Region origin ASes present in the Internet Routing Table: 312
AfriNIC Prefixes per ASN: 21.48
AfriNIC Region origin ASes announcing only one prefix: 88
AfriNIC Region transit ASes present in the Internet Routing Table: 68
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 20192512
Equivalent to 1 /8s, 52 /16s and 29 /24s
Percentage of available AfriNIC address space announced: 60.2
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1556 6981 426 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
4755 1230 292 141 Videsh Sanchar Nigam Ltd. Aut
9583 1104 87 535 Sify Limited
18101 951 202 32 Reliance Infocom Ltd Internet
4134 945 18167 389 CHINANET-BACKBONE
23577 924 34 767 KRNIC
7545 827 198 103 TPG Internet Pty Ltd
9829 802 625 18 BSNL National Internet Backbo
24560 743 255 162 Bharti Airtel Ltd.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4180 3610 313 bellsouth.net, inc.
20115 1982 1477 670 Charter Communications
4323 1911 1049 385 Time Warner Telecom
1785 1732 714 138 AppliedTheory Corporation
7018 1494 5916 1052 AT&T WorldNet Services
6478 1392 281 258 AT&T Worldnet Services
2386 1295 642 950 AT&T Data Communications Serv
3356 1227 10980 441 Level 3 Communications, LLC
11492 1115 208 12 Cable One
22773 1093 2604 66 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 621 1837 343 UUNET - Commercial IP service
30890 486 92 196 Evolva Telecom
12479 476 578 6 Uni2 Autonomous System
3292 470 1905 397 TDC Tele Danmark
35805 382 40 5 United Telecom AS
3301 376 1412 308 TeliaNet Sweden
9198 362 138 12 Kazakhtelecom Corporate Sales
8866 357 109 22 Bulgarian Telecommunication C
3320 352 7067 302 Deutsche Telekom AG
3215 344 3081 109 France Telecom Transpac
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 2251 335 94 Telecom Argentina Stet-France
8151 1477 2899 241 Uninet S.A. de C.V.
10620 1000 225 103 TVCABLE BOGOTA
28573 703 603 60 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 476 310 65 Instituto Costarricense de El
7738 442 862 30 Telecomunicacoes da Bahia S.A
11172 441 99 70 Alestra
14117 435 29 11 Telefonica del Sur S.A.
6471 421 96 31 ENTEL CHILE S.A.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 998 188 7 TEDATA
24863 928 93 53 LINKdotNET AS number
20858 320 34 6 EgyNet
3741 274 856 235 The Internet Solution
2018 202 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
33783 146 9 14 EEPAD TISP TELECOM & INTERNET
29571 143 14 6 Ci Telecom Autonomous system
24835 131 46 9 RAYA Telecom - Egypt
33776 123 7 11 Starcomms Nigeria Limited
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4180 3610 313 bellsouth.net, inc.
7303 2251 335 94 Telecom Argentina Stet-France
20115 1982 1477 670 Charter Communications
4323 1911 1049 385 Time Warner Telecom
1785 1732 714 138 AppliedTheory Corporation
4766 1556 6981 426 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
7018 1494 5916 1052 AT&T WorldNet Services
8151 1477 2899 241 Uninet S.A. de C.V.
6478 1392 281 258 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 2251 2157 Telecom Argentina Stet-France
1785 1732 1594 AppliedTheory Corporation
4323 1911 1526 Time Warner Telecom
17488 1554 1451 Hathway IP Over Cable Interne
20115 1982 1312 Charter Communications
8151 1477 1236 Uninet S.A. de C.V.
6478 1392 1134 AT&T Worldnet Services
4766 1556 1130 Korea Telecom (KIX)
11492 1115 1103 Cable One
4755 1230 1089 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
36.126.8.255/8 77 Johns Hopkins University Appl
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
43.245.96.0/20 7502 Internetwork Kyoto
43.245.112.0/20 7502 Internetwork Kyoto
43.245.192.0/20 7502 Internetwork Kyoto
43.245.208.0/20 7502 Internetwork Kyoto
Complete listing at http://thyme.apnic.net/rviews/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 /8:20 /9:10 /10:25 /11:62 /12:171
/13:354 /14:629 /15:1185 /16:10674 /17:4920 /18:8464
/19:17523 /20:20784 /21:21003 /22:27920 /23:27053 /24:156172
/25:820 /26:1015 /27:528 /28:453 /29:669 /30:815
/31:4 /32:302
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2709 4180 bellsouth.net, inc.
7303 1747 2251 Telecom Argentina Stet-France
17488 1300 1554 Hathway IP Over Cable Interne
4766 1243 1556 Korea Telecom (KIX)
1785 1203 1732 AppliedTheory Corporation
18566 1043 1062 Covad Communications
11492 1042 1115 Cable One
20115 997 1982 Charter Communications
4323 962 1911 Time Warner Telecom
9583 956 1104 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:14 8:216 12:2148 13:7 15:21 16:2
17:5 20:35 24:1160 32:151 34:2 38:597
40:97 41:1764 43:1 44:2 47:20 52:6
55:2 56:2 57:38 58:611 59:610 60:460
61:959 62:1162 63:2029 64:3644 65:2402 66:3488
67:1760 68:900 69:2759 70:559 71:173 72:1699
73:2 74:1751 75:182 76:320 77:861 78:587
79:378 80:935 81:850 82:630 83:427 84:644
85:1055 86:384 87:666 88:370 89:1474 90:52
91:2506 92:399 93:1128 94:1149 95:921 96:166
97:268 98:269 99:30 109:1 110:187 111:395
112:128 113:152 114:241 115:312 116:1147 117:570
118:322 119:774 120:120 121:659 122:1244 123:757
124:1061 125:1357 128:224 129:220 130:129 131:418
132:75 133:9 134:174 135:42 136:225 137:161
138:170 139:96 140:445 141:124 142:386 143:343
144:387 145:49 146:388 147:159 148:530 149:297
150:208 151:186 152:210 153:160 154:2 155:279
156:167 157:307 158:112 159:350 160:291 161:164
162:270 163:164 164:276 165:526 166:472 167:367
168:705 169:167 170:509 171:42 172:2 173:401
174:325 175:1 178:1 180:15 182:1 186:138
187:189 188:740 189:689 190:3394 192:5811 193:4386
194:3407 195:2875 196:1126 198:3563 199:3364 200:5474
201:1440 202:7767 203:8288 204:3899 205:2301 206:2405
207:2749 208:3963 209:3411 210:2547 211:1136 212:1649
213:1712 214:175 215:32 216:4348 217:1371 218:412
219:440 220:1113 221:463 222:328
End of report