Routing Table Report 00:00 GMT Tue 26 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: 337657
Prefixes after maximum aggregation: 152553
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 164586
Total ASes present in the Internet Routing Table: 35096
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30291
Origin ASes announcing only one prefix: 14743
Transit ASes present in the Internet Routing Table: 4805
Transit-only ASes present in the Internet Routing Table: 111
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 24
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 453
Unregistered ASNs in the Routing Table: 193
Number of 32-bit ASNs allocated by the RIRs: 840
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 65
Prefixes being announced from unallocated address space: 202
Number of addresses announced to Internet: 2324625216
Equivalent to 138 /8s, 142 /16s and 247 /24s
Percentage of available address space announced: 62.7
Percentage of allocated address space announced: 66.3
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: 138535
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 80809
Total APNIC prefixes after maximum aggregation: 27253
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 77825
Unique aggregates announced from the APNIC address blocks: 34632
APNIC Region origin ASes present in the Internet Routing Table: 4204
APNIC Prefixes per ASN: 18.51
APNIC Region origin ASes announcing only one prefix: 1185
APNIC Region transit ASes present in the Internet Routing Table: 658
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 560510146
Equivalent to 33 /8s, 104 /16s and 180 /24s
Percentage of available APNIC address space announced: 75.9
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: 138607
Total ARIN prefixes after maximum aggregation: 71290
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 109721
Unique aggregates announced from the ARIN address blocks: 43472
ARIN Region origin ASes present in the Internet Routing Table: 13981
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5346
ARIN Region transit ASes present in the Internet Routing Table: 1425
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 738110209
Equivalent to 43 /8s, 254 /16s and 171 /24s
Percentage of available ARIN address space announced: 62.8
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, 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: 80346
Total RIPE prefixes after maximum aggregation: 44898
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 73089
Unique aggregates announced from the RIPE address blocks: 46197
RIPE Region origin ASes present in the Internet Routing Table: 14953
RIPE Prefixes per ASN: 4.89
RIPE Region origin ASes announcing only one prefix: 7659
RIPE Region transit ASes present in the Internet Routing Table: 2337
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 442749287
Equivalent to 26 /8s, 99 /16s and 209 /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: 30280
Total LACNIC prefixes after maximum aggregation: 7174
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 28961
Unique aggregates announced from the LACNIC address blocks: 15342
LACNIC Region origin ASes present in the Internet Routing Table: 1372
LACNIC Prefixes per ASN: 21.11
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 239
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 76617864
Equivalent to 4 /8s, 145 /16s and 24 /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: 7368
Total AfriNIC prefixes after maximum aggregation: 1816
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 5863
Unique aggregates announced from the AfriNIC address blocks: 1718
AfriNIC Region origin ASes present in the Internet Routing Table: 410
AfriNIC Prefixes per ASN: 14.30
AfriNIC Region origin ASes announcing only one prefix: 126
AfriNIC Region transit ASes present in the Internet Routing Table: 90
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 20918016
Equivalent to 1 /8s, 63 /16s and 47 /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 1729 9453 510 Korea Telecom (KIX)
7545 1416 299 78 TPG Internet Pty Ltd
4755 1374 382 158 Videsh Sanchar Nigam Ltd. Aut
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1272 303 78 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd.
9583 1030 76 493 Sify Limited
4808 939 1670 258 CNCGROUP IP network: China169
18101 893 116 134 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 3763 3666 283 bellsouth.net, inc.
4323 2618 1119 393 Time Warner Telecom
1785 1797 698 130 AppliedTheory Corporation
19262 1778 4833 280 Verizon Global Networks
20115 1550 1530 646 Charter Communications
7018 1446 9829 929 AT&T WorldNet Services
6478 1388 279 96 AT&T Worldnet Services
2386 1317 556 932 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1209 2859 62 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
286 861 711 140 KPNQwest Backbone AS
9116 543 328 34 Goldenlines main autonomous s
3292 494 2027 390 TDC Tele Danmark
8866 423 133 25 Bulgarian Telecommunication C
8551 404 355 38 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 376 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 1338 2581 369 Uninet S.A. de C.V.
10620 1331 248 151 TVCABLE BOGOTA
28573 1221 920 84 Types of queries are: POCs, o
7303 832 441 108 Telecom Argentina Stet-France
6503 792 223 259 AVANTEL, S.A.
22047 563 310 15 Types of queries are: POCs, o
14420 545 39 76 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 40 LINKdotNET AS number
36992 643 278 160 Etisalat MISR
3741 267 893 229 The Internet Solution
24835 210 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
33776 196 12 14 Starcomms Nigeria Limited
16637 156 440 94 Johnnic e-Ventures
36874 135 24 4 Cybersmart
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 3763 3666 283 bellsouth.net, inc.
4323 2618 1119 393 Time Warner Telecom
1785 1797 698 130 AppliedTheory Corporation
19262 1778 4833 280 Verizon Global Networks
4766 1729 9453 510 Korea Telecom (KIX)
20115 1550 1530 646 Charter Communications
7018 1446 9829 929 AT&T WorldNet Services
7545 1416 299 78 TPG Internet Pty Ltd
6478 1388 279 96 AT&T Worldnet Services
4755 1374 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 2618 2225 Time Warner Telecom
1785 1797 1667 AppliedTheory Corporation
19262 1778 1498 Verizon Global Networks
7545 1416 1338 TPG Internet Pty Ltd
6478 1388 1292 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4766 1729 1219 Korea Telecom (KIX)
4755 1374 1216 Videsh Sanchar Nigam Ltd. Aut
17974 1272 1194 PT TELEKOMUNIKASI INDONESIA
10620 1331 1180 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
53562 UNALLOCATED 8.19.94.0/24 3356 Level 3 Communicatio
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
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
10.29.245.15/32 286 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
10.29.245.51/32 286 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
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /8:22 /9:10 /10:25 /11:69 /12:207
/13:420 /14:746 /15:1347 /16:11379 /17:5602 /18:9483
/19:18891 /20:24221 /21:24108 /22:31607 /23:30921 /24:175518
/25:381 /26:429 /27:209 /28:379 /29:286 /30:643
/31:14 /32:740
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2327 3763 bellsouth.net, inc.
4323 1406 2618 Time Warner Telecom
6478 1350 1388 AT&T Worldnet Services
10620 1222 1331 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1077 1797 AppliedTheory Corporation
18566 1069 1088 Covad Communications
7011 1058 1159 Citizens Utilities
8452 988 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)
----------------------------------------------
1:90 2:12 4:17 8:317 12:2016 13:8
14:45 15:18 16:3 17:9 20:9 24:1406
27:382 31:1 32:146 33:12 38:696 40:97
41:2593 44:3 46:171 47:10 49:4 50:1
52:12 55:4 56:2 57:40 58:837 59:501
60:480 61:1115 62:1027 63:1969 64:3758 65:2348
66:4089 67:1848 68:1148 69:2871 70:756 71:378
72:1980 73:2 74:2348 75:296 76:326 77:864
78:693 79:454 80:1062 81:811 82:527 83:463
84:706 85:1047 86:479 87:727 88:336 89:1583
90:109 91:3138 92:440 93:1020 94:1104 95:699
96:390 97:222 98:642 99:32 101:3 108:64
109:734 110:438 111:616 112:305 113:305 114:482
115:607 116:1130 117:664 118:553 119:979 120:161
121:722 122:1599 123:915 124:1246 125:1272 128:229
129:154 130:167 131:565 132:275 133:20 134:209
135:46 136:212 137:137 138:281 139:127 140:487
141:198 142:349 143:384 144:496 145:56 146:431
147:175 148:621 149:308 150:146 151:231 152:292
153:175 154:3 155:344 156:166 157:341 158:112
159:361 160:312 161:198 162:274 163:164 164:424
165:349 166:470 167:425 168:683 169:153 170:718
171:61 172:2 173:1048 174:501 175:242 176:1
177:1 178:541 180:682 181:1 182:254 183:236
184:133 186:742 187:549 188:854 189:812 190:4166
192:5785 193:4784 194:3492 195:2969 196:1118 198:3541
199:3637 200:5402 201:1586 202:8319 203:8289 204:4016
205:2330 206:2583 207:3028 208:3917 209:3478 210:2572
211:1295 212:1867 213:1781 214:682 215:66 216:4794
217:1574 218:530 219:402 220:1186 221:432 222:367
223:58
End of report