Routing Table Report 00:00 GMT Sat 12 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: 302184
Prefixes after maximum aggregation: 140435
Deaggregation factor: 2.15
Unique aggregates announced to Internet: 99669
Total ASes present in the Internet Routing Table: 32240
Prefixes per ASN: 9.37
Origin-only ASes present in the Internet Routing Table: 27930
Origin ASes announcing only one prefix: 13655
Transit ASes present in the Internet Routing Table: 4310
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 25
Max AS path prepend of ASN (31759) 22
Prefixes from unregistered ASNs in the Routing Table: 493
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 266
Prefixes from 32-bit ASNs in the Routing Table: 127
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 234
Number of addresses announced to Internet: 1185021182
Equivalent to 70 /8s, 161 /16s and 252 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 36.6
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.8
Total number of prefixes smaller than registry allocations: 146096
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71483
Total APNIC prefixes after maximum aggregation: 25205
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 67796
Unique aggregates announced from the APNIC address blocks: 20539
APNIC Region origin ASes present in the Internet Routing Table: 3781
APNIC Prefixes per ASN: 17.93
APNIC Region origin ASes announcing only one prefix: 1042
APNIC Region transit ASes present in the Internet Routing Table: 593
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211659776
Equivalent to 12 /8s, 157 /16s and 172 /24s
Percentage of available APNIC address space announced: 36.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 126669
Total ARIN prefixes after maximum aggregation: 66937
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 100790
Unique aggregates announced from the ARIN address blocks: 24750
ARIN Region origin ASes present in the Internet Routing Table: 13265
ARIN Prefixes per ASN: 7.60
ARIN Region origin ASes announcing only one prefix: 5139
ARIN Region transit ASes present in the Internet Routing Table: 1339
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 454728321
Equivalent to 27 /8s, 26 /16s and 154 /24s
Percentage of available ARIN address space announced: 39.9
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, 393216-394239
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: 69557
Total RIPE prefixes after maximum aggregation: 40235
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 63419
Unique aggregates announced from the RIPE address blocks: 19521
RIPE Region origin ASes present in the Internet Routing Table: 13493
RIPE Prefixes per ASN: 4.70
RIPE Region origin ASes announcing only one prefix: 7011
RIPE Region transit ASes present in the Internet Routing Table: 2047
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 105490080
Equivalent to 6 /8s, 73 /16s and 166 /24s
Percentage of available RIPE address space announced: 21.0
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, 196608-197631
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: 27970
Total LACNIC prefixes after maximum aggregation: 6237
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 26302
Unique aggregates announced from the LACNIC address blocks: 13235
LACNIC Region origin ASes present in the Internet Routing Table: 1178
LACNIC Prefixes per ASN: 22.33
LACNIC Region origin ASes announcing only one prefix: 370
LACNIC Region transit ASes present in the Internet Routing Table: 199
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 66360072
Equivalent to 3 /8s, 244 /16s and 147 /24s
Percentage of available LACNIC address space announced: 65.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 6114
Total AfriNIC prefixes after maximum aggregation: 1556
AfriNIC Deaggregation factor: 3.93
Prefixes being announced from the AfriNIC address blocks: 4478
Unique aggregates announced from the AfriNIC address blocks: 1390
AfriNIC Region origin ASes present in the Internet Routing Table: 317
AfriNIC Prefixes per ASN: 14.13
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 70
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 11906816
Equivalent to 0 /8s, 181 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 35.5
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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 1566 6982 427 Korea Telecom (KIX)
17488 1543 137 102 Hathway IP Over Cable Interne
4755 1257 292 142 Videsh Sanchar Nigam Ltd. Aut
9583 1107 87 535 Sify Limited
18101 959 201 32 Reliance Infocom Ltd Internet
4134 949 18167 389 CHINANET-BACKBONE
23577 896 33 754 KRNIC
7545 842 198 99 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
24560 756 284 161 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 4170 3624 310 bellsouth.net, inc.
20115 1984 1480 665 Charter Communications
4323 1921 1049 387 Time Warner Telecom
1785 1737 714 137 AppliedTheory Corporation
7018 1488 5881 1049 AT&T WorldNet Services
6478 1405 282 249 AT&T Worldnet Services
2386 1292 641 946 AT&T Data Communications Serv
3356 1226 10946 432 Level 3 Communications, LLC
11492 1120 208 12 Cable One
22773 1099 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 1822 345 UUNET - Commercial IP service
30890 490 92 200 Evolva Telecom
3292 448 1901 395 TDC Tele Danmark
12479 425 578 6 Uni2 Autonomous System
35805 386 40 5 United Telecom AS
3301 379 1412 309 TeliaNet Sweden
9198 373 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 353 7067 302 Deutsche Telekom AG
3215 347 3121 111 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 2257 337 92 Telecom Argentina Stet-France
8151 1485 2900 246 Uninet S.A. de C.V.
10620 1013 226 97 TVCABLE BOGOTA
28573 702 620 61 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 477 310 58 Instituto Costarricense de El
7738 446 862 30 Telecomunicacoes da Bahia S.A
11172 438 83 69 Alestra
6471 421 96 31 ENTEL CHILE S.A.
16735 419 124 11 Companhia de Telecomunicacoes
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 992 188 7 TEDATA
24863 947 96 57 LINKdotNET AS number
20858 296 34 6 EgyNet
3741 275 856 236 The Internet Solution
2018 207 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 131 46 9 RAYA Telecom - Egypt
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
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 4170 3624 310 bellsouth.net, inc.
7303 2257 337 92 Telecom Argentina Stet-France
20115 1984 1480 665 Charter Communications
4323 1921 1049 387 Time Warner Telecom
1785 1737 714 137 AppliedTheory Corporation
4766 1566 6982 427 Korea Telecom (KIX)
17488 1543 137 102 Hathway IP Over Cable Interne
7018 1488 5881 1049 AT&T WorldNet Services
8151 1485 2900 246 Uninet S.A. de C.V.
6478 1405 282 249 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 2257 2165 Telecom Argentina Stet-France
1785 1737 1600 AppliedTheory Corporation
4323 1921 1534 Time Warner Telecom
17488 1543 1441 Hathway IP Over Cable Interne
20115 1984 1319 Charter Communications
8151 1485 1239 Uninet S.A. de C.V.
6478 1405 1156 AT&T Worldnet Services
4766 1566 1139 Korea Telecom (KIX)
4755 1257 1115 Videsh Sanchar Nigam Ltd. Aut
11492 1120 1108 Cable One
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
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
43.245.224.0/20 7502 Internetwork Kyoto
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:19 /9:10 /10:25 /11:62 /12:177
/13:353 /14:631 /15:1197 /16:10687 /17:4922 /18:8482
/19:17581 /20:20885 /21:20927 /22:27831 /23:27130 /24:156592
/25:826 /26:1045 /27:507 /28:448 /29:698 /30:834
/31:3 /32:312
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2705 4170 bellsouth.net, inc.
7303 1754 2257 Telecom Argentina Stet-France
17488 1292 1543 Hathway IP Over Cable Interne
4766 1245 1566 Korea Telecom (KIX)
1785 1206 1737 AppliedTheory Corporation
11492 1047 1120 Cable One
18566 1043 1062 Covad Communications
20115 994 1984 Charter Communications
4323 966 1921 Time Warner Telecom
9583 959 1107 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:215 12:2155 13:7 15:21 16:3
17:5 20:36 24:1164 32:151 34:2 38:601
40:97 41:1712 43:1 44:2 47:24 52:6
55:2 56:2 57:37 58:606 59:611 60:457
61:965 62:1140 63:2007 64:3627 65:2389 66:3453
67:1762 68:981 69:2746 70:569 71:167 72:1702
73:2 74:1743 75:182 76:321 77:876 78:586
79:384 80:932 81:811 82:558 83:437 84:646
85:1037 86:385 87:682 88:383 89:1471 90:49
91:2544 92:399 93:1153 94:1171 95:1083 96:167
97:269 98:263 99:30 109:3 110:191 111:430
112:131 113:154 114:246 115:318 116:1145 117:575
118:329 119:773 120:122 121:659 122:1262 123:767
124:1050 125:1358 128:222 129:215 130:174 131:422
132:75 133:9 134:173 135:42 136:224 137:164
138:172 139:96 140:432 141:125 142:383 143:337
144:380 145:49 146:390 147:165 148:532 149:291
150:207 151:188 152:210 153:162 154:2 155:282
156:168 157:307 158:112 159:351 160:291 161:164
162:270 163:164 164:276 165:528 166:474 167:367
168:709 169:167 170:502 171:42 172:2 173:408
174:310 175:1 178:1 180:22 182:1 186:155
187:200 188:946 189:709 190:3404 192:5803 193:4386
194:3412 195:2901 196:1134 198:3555 199:3344 200:5501
201:1453 202:7847 203:8291 204:3882 205:2301 206:2401
207:2724 208:3953 209:3412 210:2546 211:1136 212:1631
213:1718 214:168 215:33 216:4313 217:1314 218:416
219:451 220:1112 221:443 222:322
End of report