Routing Table Report 00:00 GMT Mon 10 Jan, 2011
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: 345473
Prefixes after maximum aggregation: 155660
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168103
Total ASes present in the Internet Routing Table: 35654
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30686
Origin ASes announcing only one prefix: 14913
Transit ASes present in the Internet Routing Table: 4968
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 389
Unregistered ASNs in the Routing Table: 153
Number of 32-bit ASNs allocated by the RIRs: 1003
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 214
Number of addresses announced to Internet: 2432225549
Equivalent to 144 /8s, 248 /16s and 209 /24s
Percentage of available address space announced: 65.6
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.2
Total number of prefixes smaller than registry allocations: 141962
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82779
Total APNIC prefixes after maximum aggregation: 27859
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79764
Unique aggregates announced from the APNIC address blocks: 35345
APNIC Region origin ASes present in the Internet Routing Table: 4275
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 578720450
Equivalent to 34 /8s, 126 /16s and 146 /24s
Percentage of available APNIC address space announced: 78.4
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: 140451
Total ARIN prefixes after maximum aggregation: 72467
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111313
Unique aggregates announced from the ARIN address blocks: 44134
ARIN Region origin ASes present in the Internet Routing Table: 14139
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5399
ARIN Region transit ASes present in the Internet Routing Table: 1483
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 778138505
Equivalent to 46 /8s, 97 /16s and 115 /24s
Percentage of available ARIN address space announced: 65.3
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, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 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, 100/8,
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: 83310
Total RIPE prefixes after maximum aggregation: 46039
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75928
Unique aggregates announced from the RIPE address blocks: 47673
RIPE Region origin ASes present in the Internet Routing Table: 15199
RIPE Prefixes per ASN: 5.00
RIPE Region origin ASes announcing only one prefix: 7710
RIPE Region transit ASes present in the Internet Routing Table: 2392
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 454237333
Equivalent to 27 /8s, 19 /16s and 28 /24s
Percentage of available RIPE address space announced: 75.2
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, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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: 31267
Total LACNIC prefixes after maximum aggregation: 7223
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30027
Unique aggregates announced from the LACNIC address blocks: 15584
LACNIC Region origin ASes present in the Internet Routing Table: 1421
LACNIC Prefixes per ASN: 21.13
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 78871436
Equivalent to 4 /8s, 179 /16s and 123 /24s
Percentage of available LACNIC address space announced: 58.8
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: 7418
Total AfriNIC prefixes after maximum aggregation: 1954
AfriNIC Deaggregation factor: 3.80
Prefixes being announced from the AfriNIC address blocks: 5705
Unique aggregates announced from the AfriNIC address blocks: 1810
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.08
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21676800
Equivalent to 1 /8s, 74 /16s and 195 /24s
Percentage of available AfriNIC address space announced: 43.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1743 9483 512 Korea Telecom (KIX)
7545 1560 299 76 TPG Internet Pty Ltd
17974 1399 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1392 632 157 Videsh Sanchar Nigam Ltd. Aut
24560 1060 317 180 Bharti Airtel Ltd.
9583 1041 76 489 Sify Limited
17488 958 159 109 Hathway IP Over Cable Interne
18101 911 116 137 Reliance Infocom Ltd Internet
4808 893 1925 248 CNCGROUP IP network: China169
9829 850 719 44 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 3717 3855 266 bellsouth.net, inc.
4323 2642 1077 401 Time Warner Telecom
19262 1841 4937 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
20115 1557 1533 637 Charter Communications
6478 1438 287 101 AT&T Worldnet Services
7018 1369 5659 884 AT&T WorldNet Services
2386 1295 569 930 AT&T Data Communications Serv
11492 1281 234 73 Cable One
22773 1261 2864 74 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
286 965 710 153 KPNQwest Backbone AS
3292 503 2010 385 TDC Tele Danmark
6830 502 1763 308 UPC Distribution Services
9116 497 328 32 Goldenlines main autonomous s
34984 456 97 137 Tellcom Iletisim Hizmetleri
8866 440 137 24 Bulgarian Telecommunication C
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
12479 400 577 6 Uni2 Autonomous System
702 398 1865 312 UUNET - Commercial IP service
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
10620 1344 250 164 TVCABLE BOGOTA
8151 1342 2593 360 Uninet S.A. de C.V.
28573 1228 936 80 Types of queries are: POCs, o
6503 1198 355 78 AVANTEL, S.A.
7303 839 443 113 Telecom Argentina Stet-France
14420 593 50 85 Types of queries are: POCs, o
22047 565 310 15 Types of queries are: POCs, o
3816 494 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 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 753 445 10 TEDATA
24863 749 147 38 LINKdotNET AS number
36992 662 283 155 Etisalat MISR
3741 259 986 222 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 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 3717 3855 266 bellsouth.net, inc.
4323 2642 1077 401 Time Warner Telecom
19262 1841 4937 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
4766 1743 9483 512 Korea Telecom (KIX)
7545 1560 299 76 TPG Internet Pty Ltd
20115 1557 1533 637 Charter Communications
6478 1438 287 101 AT&T Worldnet Services
17974 1399 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1392 632 157 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 2642 2241 Time Warner Telecom
1785 1786 1653 AppliedTheory Corporation
19262 1841 1555 Verizon Global Networks
7545 1560 1484 TPG Internet Pty Ltd
17974 1399 1371 PT TELEKOMUNIKASI INDONESIA
6478 1438 1337 AT&T Worldnet Services
4755 1392 1235 Videsh Sanchar Nigam Ltd. Aut
4766 1743 1231 Korea Telecom (KIX)
11492 1281 1208 Cable One
22773 1261 1187 Cox Communications, Inc.
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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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
10.29.244.56/29 286 KPNQwest Backbone AS
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
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.0.0.0/8 237 Merit Network
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.0.0.0/8 237 Merit Network
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 53631 Ottawa Catholic School Board
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 /8:26 /9:10 /10:25 /11:71 /12:214
/13:435 /14:761 /15:1378 /16:11538 /17:5783 /18:9536
/19:19245 /20:24776 /21:24745 /22:32521 /23:31710 /24:179762
/25:357 /26:366 /27:190 /28:361 /29:298 /30:681
/31:45 /32:639
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2295 3717 bellsouth.net, inc.
4323 1428 2642 Time Warner Telecom
6478 1394 1438 AT&T Worldnet Services
10620 1236 1344 TVCABLE BOGOTA
11492 1236 1281 Cable One
18566 1076 1095 Covad Communications
7011 1072 1175 Citizens Utilities
1785 1060 1786 AppliedTheory Corporation
6503 984 1198 AVANTEL, S.A.
19262 956 1841 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:157 2:40 4:16 5:1 8:325 12:2029
13:6 14:284 15:15 16:3 17:8 20:9
24:1486 27:533 32:137 33:5 34:2 36:1
37:1 38:687 40:101 41:2261 42:1 44:3
46:480 47:5 49:131 50:42 52:12 55:5
56:2 57:41 58:864 59:500 60:385 61:1102
62:1075 63:1940 64:3760 65:2335 66:4129 67:1795
68:1151 69:2953 70:755 71:389 72:2001 73:3
74:2346 75:300 76:333 77:855 78:688 79:460
80:1043 81:812 82:552 83:458 84:655 85:1059
86:525 87:746 88:351 89:1587 90:152 91:3409
92:483 93:1042 94:1172 95:743 96:411 97:246
98:747 99:33 100:1 101:17 107:3 108:79
109:853 110:465 111:676 112:310 113:359 114:492
115:636 116:886 117:675 118:624 119:1030 120:199
121:704 122:1576 123:1028 124:1248 125:1213 128:232
129:158 130:171 131:565 132:110 133:20 134:214
135:50 136:212 137:145 138:291 139:123 140:485
141:197 142:359 143:366 144:488 145:52 146:426
147:202 148:613 149:300 150:151 151:230 152:297
153:173 154:3 155:370 156:164 157:340 158:126
159:371 160:315 161:196 162:278 163:164 164:461
165:352 166:473 167:420 168:735 169:154 170:729
171:67 172:2 173:1195 174:508 175:306 176:1
177:3 178:715 180:742 182:385 183:257 184:232
186:897 187:764 188:897 189:1042 190:4293 192:5810
193:4818 194:3537 195:3048 196:1258 197:1 198:3547
199:3714 200:5599 201:1567 202:8394 203:8426 204:4057
205:2342 206:2581 207:2980 208:3868 209:3487 210:2605
211:1343 212:1928 213:1768 214:740 215:62 216:4865
217:1630 218:522 219:389 220:1196 221:446 222:310
223:89
End of report
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