Routing Table Report 00:00 GMT Tue 11 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: 345199
Prefixes after maximum aggregation: 155660
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 168214
Total ASes present in the Internet Routing Table: 35649
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30686
Origin ASes announcing only one prefix: 14921
Transit ASes present in the Internet Routing Table: 4963
Transit-only ASes present in the Internet Routing Table: 121
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: 385
Unregistered ASNs in the Routing Table: 152
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: 211
Number of addresses announced to Internet: 2432476685
Equivalent to 144 /8s, 252 /16s and 166 /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: 141752
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82865
Total APNIC prefixes after maximum aggregation: 27866
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79832
Unique aggregates announced from the APNIC address blocks: 35366
APNIC Region origin ASes present in the Internet Routing Table: 4277
APNIC Prefixes per ASN: 18.67
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 676
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 578879938
Equivalent to 34 /8s, 129 /16s and 1 /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: 140423
Total ARIN prefixes after maximum aggregation: 72411
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111329
Unique aggregates announced from the ARIN address blocks: 44139
ARIN Region origin ASes present in the Internet Routing Table: 14131
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5396
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: 778150025
Equivalent to 46 /8s, 97 /16s and 160 /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: 82966
Total RIPE prefixes after maximum aggregation: 46062
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 75605
Unique aggregates announced from the RIPE address blocks: 47757
RIPE Region origin ASes present in the Internet Routing Table: 15203
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7722
RIPE Region transit ASes present in the Internet Routing Table: 2395
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 454371989
Equivalent to 27 /8s, 21 /16s and 42 /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: 31249
Total LACNIC prefixes after maximum aggregation: 7257
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 29998
Unique aggregates announced from the LACNIC address blocks: 15579
LACNIC Region origin ASes present in the Internet Routing Table: 1419
LACNIC Prefixes per ASN: 21.14
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 78854284
Equivalent to 4 /8s, 179 /16s and 56 /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: 7449
Total AfriNIC prefixes after maximum aggregation: 1946
AfriNIC Deaggregation factor: 3.83
Prefixes being announced from the AfriNIC address blocks: 5737
Unique aggregates announced from the AfriNIC address blocks: 1810
AfriNIC Region origin ASes present in the Internet Routing Table: 437
AfriNIC Prefixes per ASN: 13.13
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21607680
Equivalent to 1 /8s, 73 /16s and 181 /24s
Percentage of available AfriNIC address space announced: 42.9
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 1561 299 77 TPG Internet Pty Ltd
17974 1406 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1392 632 157 Videsh Sanchar Nigam Ltd. Aut
24560 1061 317 180 Bharti Airtel Ltd.
9583 1041 76 489 Sify Limited
17488 958 159 109 Hathway IP Over Cable Interne
18101 912 116 138 Reliance Infocom Ltd Internet
4808 907 1941 255 CNCGROUP IP network: China169
9829 851 719 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 3716 3855 268 bellsouth.net, inc.
4323 2639 1077 400 Time Warner Telecom
19262 1841 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
20115 1557 1533 637 Charter Communications
6478 1443 287 78 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 1265 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 489 328 32 Goldenlines main autonomous s
34984 456 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 422 266 14 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
12479 402 577 6 Uni2 Autonomous System
702 397 1849 311 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
8151 1344 2593 362 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1216 934 107 Types of queries are: POCs, o
6503 1199 355 79 AVANTEL, S.A.
7303 840 443 111 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 770 445 10 TEDATA
24863 749 147 38 LINKdotNET AS number
36992 661 283 155 Etisalat MISR
3741 260 987 223 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 197 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 163 425 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 3716 3855 268 bellsouth.net, inc.
4323 2639 1077 400 Time Warner Telecom
19262 1841 4941 286 Verizon Global Networks
1785 1786 697 133 AppliedTheory Corporation
4766 1743 9483 512 Korea Telecom (KIX)
7545 1561 299 77 TPG Internet Pty Ltd
20115 1557 1533 637 Charter Communications
6478 1443 287 78 AT&T Worldnet Services
17974 1406 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 2639 2239 Time Warner Telecom
1785 1786 1653 AppliedTheory Corporation
19262 1841 1555 Verizon Global Networks
7545 1561 1484 TPG Internet Pty Ltd
17974 1406 1378 PT TELEKOMUNIKASI INDONESIA
6478 1443 1365 AT&T Worldnet Services
4755 1392 1235 Videsh Sanchar Nigam Ltd. Aut
4766 1743 1231 Korea Telecom (KIX)
11492 1281 1208 Cable One
22773 1265 1191 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 /14:762 /15:1378 /16:11535 /17:5784 /18:9531
/19:19236 /20:24745 /21:24722 /22:32553 /23:31678 /24:179789
/25:354 /26:362 /27:187 /28:340 /29:220 /30:580
/31:45 /32:617
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2294 3716 bellsouth.net, inc.
4323 1426 2639 Time Warner Telecom
6478 1399 1443 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 1199 AVANTEL, S.A.
19262 955 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 2:39 4:16 5:1 8:325 12:2029
13:6 14:295 15:15 16:3 17:8 20:9
24:1486 27:534 32:137 33:5 34:2 36:1
37:1 38:687 40:101 41:2282 42:1 44:3
46:482 47:5 49:132 50:43 52:12 55:5
56:2 57:40 58:865 59:501 60:385 61:1103
62:1071 63:1940 64:3764 65:2337 66:4130 67:1795
68:1150 69:2951 70:756 71:389 72:1999 73:3
74:2345 75:300 76:333 77:860 78:695 79:454
80:1040 81:819 82:550 83:457 84:653 85:1065
86:523 87:746 88:350 89:1591 90:152 91:3404
92:478 93:1032 94:1190 95:748 96:411 97:247
98:750 99:33 100:1 101:17 107:3 108:79
109:854 110:466 111:677 112:310 113:362 114:491
115:637 116:890 117:676 118:628 119:1034 120:199
121:704 122:1577 123:1035 124:1248 125:1215 128:232
129:159 130:171 131:553 132:110 133:20 134:214
135:50 136:212 137:145 138:291 139:123 140:476
141:197 142:360 143:368 144:488 145:52 146:426
147:202 148:625 149:301 150:152 151:230 152:297
153:173 154:3 155:371 156:164 157:340 158:127
159:371 160:316 161:196 162:278 163:164 164:461
165:352 166:473 167:419 168:734 169:154 170:728
171:67 172:2 173:1199 174:507 175:306 176:1
177:3 178:716 180:742 182:385 183:256 184:231
186:898 187:765 188:876 189:1044 190:4282 192:5812
193:4812 194:3527 195:3053 196:1255 197:1 198:3538
199:3717 200:5600 201:1558 202:8398 203:8436 204:4060
205:2336 206:2581 207:2978 208:3873 209:3485 210:2602
211:1343 212:1918 213:1770 214:729 215:62 216:4867
217:1625 218:523 219:387 220:1196 221:446 222:322
223:89
End of report
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