Routing Table Report 00:00 GMT Thu 28 Oct, 2010
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 338118
Prefixes after maximum aggregation: 152794
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 164134
Total ASes present in the Internet Routing Table: 35138
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30293
Origin ASes announcing only one prefix: 14757
Transit ASes present in the Internet Routing Table: 4845
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 25
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 354
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 844
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 66
Prefixes being announced from unallocated address space: 205
Number of addresses announced to Internet: 2328033711
Equivalent to 138 /8s, 194 /16s and 249 /24s
Percentage of available address space announced: 62.8
Percentage of allocated address space announced: 66.4
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.6
Total number of prefixes smaller than registry allocations: 138604
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 80952
Total APNIC prefixes after maximum aggregation: 27279
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 77950
Unique aggregates announced from the APNIC address blocks: 33957
APNIC Region origin ASes present in the Internet Routing Table: 4213
APNIC Prefixes per ASN: 18.50
APNIC Region origin ASes announcing only one prefix: 1194
APNIC Region transit ASes present in the Internet Routing Table: 669
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 562824386
Equivalent to 33 /8s, 140 /16s and 4 /24s
Percentage of available APNIC address space announced: 76.2
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 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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, 133/8, 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, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 138577
Total ARIN prefixes after maximum aggregation: 71343
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 109692
Unique aggregates announced from the ARIN address blocks: 43526
ARIN Region origin ASes present in the Internet Routing Table: 13985
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5342
ARIN Region transit ASes present in the Internet Routing Table: 1451
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 738344449
Equivalent to 44 /8s, 2 /16s and 62 /24s
Percentage of available ARIN address space announced: 62.9
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, 50/8, 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, 107/8,
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: 80555
Total RIPE prefixes after maximum aggregation: 44975
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 73301
Unique aggregates announced from the RIPE address blocks: 46344
RIPE Region origin ASes present in the Internet Routing Table: 14972
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7666
RIPE Region transit ASes present in the Internet Routing Table: 2332
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 442907349
Equivalent to 26 /8s, 102 /16s and 58 /24s
Percentage of available RIPE address space announced: 77.6
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 2/8, 25/8, 31/8, 46/8, 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, 176/8, 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: 30244
Total LACNIC prefixes after maximum aggregation: 7208
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 28934
Unique aggregates announced from the LACNIC address blocks: 15338
LACNIC Region origin ASes present in the Internet Routing Table: 1377
LACNIC Prefixes per ASN: 21.01
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 76681096
Equivalent to 4 /8s, 146 /16s and 15 /24s
Percentage of available LACNIC address space announced: 57.1
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7550
Total AfriNIC prefixes after maximum aggregation: 1867
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5848
Unique aggregates announced from the AfriNIC address blocks: 1702
AfriNIC Region origin ASes present in the Internet Routing Table: 408
AfriNIC Prefixes per ASN: 14.33
AfriNIC Region origin ASes announcing only one prefix: 126
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 20909824
Equivalent to 1 /8s, 63 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 62.3
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 1722 9453 509 Korea Telecom (KIX)
7545 1419 299 78 TPG Internet Pty Ltd
4755 1376 382 158 Videsh Sanchar Nigam Ltd. Aut
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1271 303 79 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd.
9583 1031 76 493 Sify Limited
4808 938 1669 259 CNCGROUP IP network: China169
18101 894 116 134 Reliance Infocom Ltd Internet
9829 827 694 27 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3760 3666 279 bellsouth.net, inc.
4323 2612 1119 393 Time Warner Telecom
1785 1799 698 130 AppliedTheory Corporation
19262 1778 4833 280 Verizon Global Networks
20115 1551 1531 643 Charter Communications
7018 1441 9828 928 AT&T WorldNet Services
6478 1390 279 92 AT&T Worldnet Services
2386 1313 556 929 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1214 2858 61 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 864 711 140 KPNQwest Backbone AS
9116 543 328 34 Goldenlines main autonomous s
3292 495 2027 390 TDC Tele Danmark
8866 424 133 25 Bulgarian Telecommunication C
8551 405 356 39 Bezeq International
702 403 1868 317 UUNET - Commercial IP service
34984 381 91 188 Tellcom Iletisim Hizmetleri
3301 379 1688 335 TeliaNet Sweden
3320 376 7332 329 Deutsche Telekom AG
30890 375 80 205 Evolva Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1337 2579 367 Uninet S.A. de C.V.
10620 1330 248 155 TVCABLE BOGOTA
28573 1204 928 84 Types of queries are: POCs, o
7303 832 441 108 Telecom Argentina Stet-France
6503 796 225 260 AVANTEL, S.A.
22047 564 310 15 Types of queries are: POCs, o
14420 549 40 77 Types of queries are: POCs, o
3816 486 210 97 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1083 445 10 TEDATA
24863 744 147 39 LINKdotNET AS number
36992 642 278 160 Etisalat MISR
3741 267 893 229 The Internet Solution
24835 208 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 TENET-1
33776 196 12 14 Starcomms Nigeria Limited
16637 157 440 92 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3760 3666 279 bellsouth.net, inc.
4323 2612 1119 393 Time Warner Telecom
1785 1799 698 130 AppliedTheory Corporation
19262 1778 4833 280 Verizon Global Networks
4766 1722 9453 509 Korea Telecom (KIX)
20115 1551 1531 643 Charter Communications
7018 1441 9828 928 AT&T WorldNet Services
7545 1419 299 78 TPG Internet Pty Ltd
6478 1390 279 92 AT&T Worldnet Services
4755 1376 382 158 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2612 2219 Time Warner Telecom
1785 1799 1669 AppliedTheory Corporation
19262 1778 1498 Verizon Global Networks
7545 1419 1341 TPG Internet Pty Ltd
6478 1390 1298 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4755 1376 1218 Videsh Sanchar Nigam Ltd. Aut
4766 1722 1213 Korea Telecom (KIX)
17974 1271 1192 PT TELEKOMUNIKASI INDONESIA
10620 1330 1175 TVCABLE BOGOTA
Complete listing at http://thyme.rand.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 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 KPNQwest Backbone AS
10.29.245.30/32 286 KPNQwest Backbone AS
10.29.245.50/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
36.0.0.0/8 237 Merit Network
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
42.0.0.0/8 237 Merit Network
46.18.88.0/22 50535 EUSKILL SARL
46.21.32.0/20 44869 SEAS-NVE Holding A/S
Complete listing at http://thyme.rand.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 /8:23 /9:10 /10:25 /11:69 /12:206
/13:419 /14:745 /15:1345 /16:11387 /17:5628 /18:9500
/19:18917 /20:24261 /21:24090 /22:31706 /23:30926 /24:175845
/25:386 /26:429 /27:209 /28:381 /29:286 /30:639
/31:14 /32:672
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2325 3760 bellsouth.net, inc.
4323 1401 2612 Time Warner Telecom
6478 1352 1390 AT&T Worldnet Services
10620 1222 1330 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1078 1799 AppliedTheory Corporation
18566 1070 1089 Covad Communications
7011 1059 1160 Citizens Utilities
8452 989 1083 TEDATA
19262 903 1778 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:91 2:13 4:17 8:317 12:1999 13:8
14:45 15:18 16:3 17:8 20:9 24:1409
27:383 31:1 32:146 33:11 38:696 40:101
41:2591 44:3 46:188 47:10 49:4 50:3
52:12 55:5 56:2 57:40 58:836 59:502
60:479 61:1115 62:1024 63:1968 64:3761 65:2347
66:4093 67:1852 68:1150 69:2878 70:755 71:378
72:1940 73:2 74:2349 75:296 76:326 77:863
78:685 79:453 80:1066 81:802 82:538 83:463
84:703 85:1050 86:489 87:728 88:338 89:1592
90:109 91:3155 92:446 93:997 94:1135 95:701
96:395 97:223 98:641 99:32 101:3 108:64
109:739 110:438 111:619 112:307 113:306 114:480
115:609 116:1136 117:663 118:555 119:983 120:161
121:718 122:1608 123:949 124:1248 125:1269 128:230
129:154 130:168 131:565 132:275 133:20 134:209
135:46 136:211 137:139 138:279 139:127 140:484
141:198 142:349 143:362 144:496 145:56 146:432
147:177 148:620 149:309 150:146 151:231 152:293
153:174 154:3 155:365 156:165 157:341 158:112
159:361 160:311 161:199 162:274 163:166 164:414
165:349 166:471 167:426 168:682 169:155 170:719
171:61 172:2 173:1066 174:486 175:242 176:1
178:557 180:686 182:254 183:239 184:141 186:748
187:555 188:858 189:807 190:4174 192:5805 193:4790
194:3511 195:2976 196:1195 198:3551 199:3637 200:5409
201:1588 202:8325 203:8310 204:4030 205:2338 206:2583
207:3012 208:3910 209:3472 210:2566 211:1302 212:1881
213:1787 214:683 215:66 216:4790 217:1575 218:531
219:402 220:1187 221:425 222:367 223:58
End of report