Routing Table Report 00:00 GMT Tue 04 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: 344741
Prefixes after maximum aggregation: 155379
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 167821
Total ASes present in the Internet Routing Table: 35623
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30682
Origin ASes announcing only one prefix: 14922
Transit ASes present in the Internet Routing Table: 4941
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 387
Unregistered ASNs in the Routing Table: 156
Number of 32-bit ASNs allocated by the RIRs: 988
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 72
Prefixes being announced from unallocated address space: 214
Number of addresses announced to Internet: 2377598346
Equivalent to 141 /8s, 183 /16s and 69 /24s
Percentage of available address space announced: 64.1
Percentage of allocated address space announced: 66.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.1
Total number of prefixes smaller than registry allocations: 141584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82521
Total APNIC prefixes after maximum aggregation: 27812
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79501
Unique aggregates announced from the APNIC address blocks: 35280
APNIC Region origin ASes present in the Internet Routing Table: 4282
APNIC Prefixes per ASN: 18.57
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 682
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 575997122
Equivalent to 34 /8s, 85 /16s and 4 /24s
Percentage of available APNIC address space announced: 78.0
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 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: 140210
Total ARIN prefixes after maximum aggregation: 72291
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111066
Unique aggregates announced from the ARIN address blocks: 44056
ARIN Region origin ASes present in the Internet Routing Table: 14124
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5402
ARIN Region transit ASes present in the Internet Routing Table: 1481
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 777983881
Equivalent to 46 /8s, 95 /16s and 23 /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: 83136
Total RIPE prefixes after maximum aggregation: 45962
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75831
Unique aggregates announced from the RIPE address blocks: 47627
RIPE Region origin ASes present in the Internet Routing Table: 15187
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 7710
RIPE Region transit ASes present in the Internet Routing Table: 2365
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 453180053
Equivalent to 27 /8s, 2 /16s and 250 /24s
Percentage of available RIPE address space announced: 75.0
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 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: 31204
Total LACNIC prefixes after maximum aggregation: 7226
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 29982
Unique aggregates announced from the LACNIC address blocks: 15544
LACNIC Region origin ASes present in the Internet Routing Table: 1414
LACNIC Prefixes per ASN: 21.20
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: 5.3
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 78764300
Equivalent to 4 /8s, 177 /16s and 217 /24s
Percentage of available LACNIC address space announced: 58.7
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: 7417
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 3.77
Prefixes being announced from the AfriNIC address blocks: 5665
Unique aggregates announced from the AfriNIC address blocks: 1764
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.05
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21670656
Equivalent to 1 /8s, 74 /16s and 171 /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 1724 9483 512 Korea Telecom (KIX)
7545 1536 298 74 TPG Internet Pty Ltd
4755 1390 376 155 Videsh Sanchar Nigam Ltd. Aut
17974 1381 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1057 317 181 Bharti Airtel Ltd.
9583 1044 77 493 Sify Limited
17488 955 159 109 Hathway IP Over Cable Interne
18101 912 116 138 Reliance Infocom Ltd Internet
4808 889 1919 246 CNCGROUP IP network: China169
9829 837 707 38 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 3727 3855 268 bellsouth.net, inc.
4323 2646 1077 400 Time Warner Telecom
19262 1839 4921 285 Verizon Global Networks
1785 1789 697 132 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1444 290 55 AT&T Worldnet Services
7018 1367 5660 882 AT&T WorldNet Services
2386 1296 569 931 AT&T Data Communications Serv
11492 1289 234 69 Cable One
22773 1261 2864 75 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
286 945 711 151 KPNQwest Backbone AS
9116 511 328 32 Goldenlines main autonomous s
3292 503 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
34984 455 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
702 398 1865 312 UUNET - Commercial IP service
3320 392 7609 344 Deutsche Telekom AG
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 1348 2609 366 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1221 933 78 Types of queries are: POCs, o
6503 1194 339 78 AVANTEL, S.A.
7303 840 442 112 Telecom Argentina Stet-France
14420 593 50 85 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 493 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 454 33 32 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 660 283 153 Etisalat MISR
3741 262 986 224 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
16637 164 440 89 Johnnic e-Ventures
33776 157 10 27 Starcomms Nigeria Limited
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 3727 3855 268 bellsouth.net, inc.
4323 2646 1077 400 Time Warner Telecom
19262 1839 4921 285 Verizon Global Networks
1785 1789 697 132 AppliedTheory Corporation
4766 1724 9483 512 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1536 298 74 TPG Internet Pty Ltd
6478 1444 290 55 AT&T Worldnet Services
4755 1390 376 155 Videsh Sanchar Nigam Ltd. Aut
17974 1381 459 28 PT TELEKOMUNIKASI INDONESIA
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 2646 2246 Time Warner Telecom
1785 1789 1657 AppliedTheory Corporation
19262 1839 1554 Verizon Global Networks
7545 1536 1462 TPG Internet Pty Ltd
6478 1444 1389 AT&T Worldnet Services
17974 1381 1353 PT TELEKOMUNIKASI INDONESIA
4755 1390 1235 Videsh Sanchar Nigam Ltd. Aut
11492 1289 1220 Cable One
4766 1724 1212 Korea Telecom (KIX)
22773 1261 1186 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
10.29.245.25/32 286 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
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
5.1.0.0/21 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 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
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 /11:71 /12:214
/13:430 /14:760 /15:1376 /16:11534 /17:5777 /18:9502
/19:19202 /20:24698 /21:24700 /22:32482 /23:31658 /24:179324
/25:358 /26:375 /27:206 /28:378 /29:316 /30:667
/31:40 /32:615
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2303 3727 bellsouth.net, inc.
4323 1433 2646 Time Warner Telecom
6478 1400 1444 AT&T Worldnet Services
11492 1244 1289 Cable One
10620 1236 1344 TVCABLE BOGOTA
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
6503 980 1194 AVANTEL, S.A.
19262 956 1839 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:154 2:33 4:17 5:1 8:326 12:2034
13:5 14:232 15:15 16:3 17:8 20:9
24:1486 27:530 32:137 33:5 34:2 36:1
37:1 38:685 40:101 41:2243 42:1 44:3
46:454 47:5 49:117 50:40 52:12 55:5
56:2 57:41 58:866 59:491 60:385 61:1101
62:1074 63:1942 64:3743 65:2328 66:4111 67:1792
68:1145 69:2949 70:756 71:390 72:1996 73:3
74:2340 75:301 76:329 77:862 78:690 79:456
80:1062 81:805 82:545 83:454 84:656 85:1069
86:520 87:746 88:350 89:1585 90:141 91:3398
92:482 93:1036 94:1169 95:740 96:411 97:247
98:727 99:33 101:17 107:3 108:79 109:853
110:455 111:676 112:308 113:351 114:486 115:636
116:887 117:667 118:625 119:1023 120:200 121:703
122:1574 123:1024 124:1250 125:1213 128:231 129:155
130:171 131:567 132:111 133:20 134:209 135:50
136:212 137:149 138:291 139:123 140:478 141:197
142:353 143:362 144:488 145:53 146:424 147:200
148:614 149:326 150:152 151:230 152:297 153:172
154:3 155:370 156:165 157:341 158:126 159:370
160:316 161:197 162:277 163:164 164:460 165:352
166:470 167:418 168:728 169:154 170:727 171:67
172:2 173:1184 174:494 175:306 176:1 177:2
178:709 180:740 182:386 183:256 184:216 186:884
187:750 188:903 189:1043 190:4273 192:5816 193:4827
194:3540 195:3052 196:1263 197:1 198:3550 199:3716
200:5588 201:1562 202:8399 203:8415 204:4057 205:2336
206:2584 207:2981 208:3871 209:3492 210:2601 211:1341
212:1926 213:1757 214:731 215:62 216:4814 217:1624
218:529 219:381 220:1198 221:445 222:324 223:88
End of report
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