Routing Table Report 00:00 GMT Mon 14 Feb, 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: 351129
Prefixes after maximum aggregation: 157527
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171128
Total ASes present in the Internet Routing Table: 35874
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 31034
Origin ASes announcing only one prefix: 14913
Transit ASes present in the Internet Routing Table: 4840
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 23
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 405
Unregistered ASNs in the Routing Table: 157
Number of 32-bit ASNs allocated by the RIRs: 1117
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 2393635243
Equivalent to 142 /8s, 171 /16s and 249 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 145263
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84044
Total APNIC prefixes after maximum aggregation: 28101
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80941
Unique aggregates announced from the APNIC address blocks: 35774
APNIC Region origin ASes present in the Internet Routing Table: 4305
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1214
APNIC Region transit ASes present in the Internet Routing Table: 670
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 589034178
Equivalent to 35 /8s, 27 /16s and 242 /24s
Percentage of available APNIC address space announced: 74.7
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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 142138
Total ARIN prefixes after maximum aggregation: 73286
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112710
Unique aggregates announced from the ARIN address blocks: 44833
ARIN Region origin ASes present in the Internet Routing Table: 14211
ARIN Prefixes per ASN: 7.93
ARIN Region origin ASes announcing only one prefix: 5399
ARIN Region transit ASes present in the Internet Routing Table: 1413
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786687801
Equivalent to 46 /8s, 227 /16s and 231 /24s
Percentage of available ARIN address space announced: 62.5
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, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 104/8, 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: 85597
Total RIPE prefixes after maximum aggregation: 46842
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 78031
Unique aggregates announced from the RIPE address blocks: 48886
RIPE Region origin ASes present in the Internet Routing Table: 15328
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7730
RIPE Region transit ASes present in the Internet Routing Table: 2353
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 459395973
Equivalent to 27 /8s, 97 /16s and 211 /24s
Percentage of available RIPE address space announced: 74.0
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, 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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31714
Total LACNIC prefixes after maximum aggregation: 7368
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30477
Unique aggregates announced from the LACNIC address blocks: 15936
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.36
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80671884
Equivalent to 4 /8s, 206 /16s and 244 /24s
Percentage of available LACNIC address space announced: 53.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 7383
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 5784
Unique aggregates announced from the AfriNIC address blocks: 1833
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 21850368
Equivalent to 1 /8s, 77 /16s and 105 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1779 9485 523 Korea Telecom (KIX)
7545 1626 301 84 TPG Internet Pty Ltd
4755 1413 637 162 Videsh Sanchar Nigam Ltd. Aut
17974 1398 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1109 323 181 Bharti Airtel Ltd.
9583 1042 76 487 Sify Limited
4808 1004 2093 289 CNCGROUP IP network: China169
17488 967 162 104 Hathway IP Over Cable Interne
18101 926 117 142 Reliance Infocom Ltd Internet
9829 898 763 42 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 3700 3855 263 bellsouth.net, inc.
4323 2625 1125 403 Time Warner Telecom
19262 1844 4951 285 Verizon Global Networks
1785 1786 697 132 AppliedTheory Corporation
20115 1578 1537 646 Charter Communications
6478 1516 298 48 AT&T Worldnet Services
7018 1371 6716 890 AT&T WorldNet Services
2386 1300 554 937 AT&T Data Communications Serv
11492 1282 236 73 Cable One
18566 1282 311 104 Covad Communications
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
286 978 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 512 1764 316 UPC Distribution Services
3292 503 1996 388 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 456 97 137 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
3320 406 7620 355 Deutsche Telekom AG
20940 406 94 312 Akamai Technologies European
8551 405 355 38 Bezeq International
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 1371 255 165 TVCABLE BOGOTA
8151 1346 2645 362 Uninet S.A. de C.V.
28573 1239 961 82 Types of queries are: POCs, o
6503 1191 355 79 AVANTEL, S.A.
7303 892 447 142 Telecom Argentina Stet-France
14420 639 57 93 Types of queries are: POCs, o
22047 543 310 15 Types of queries are: POCs, o
3816 507 220 94 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 466 53 46 Telconet 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
24863 764 147 40 LINKdotNET AS number
8452 725 445 11 TEDATA
36992 589 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
15475 200 56 9 Nile Online
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
16637 150 422 84 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 3700 3855 263 bellsouth.net, inc.
4323 2625 1125 403 Time Warner Telecom
19262 1844 4951 285 Verizon Global Networks
1785 1786 697 132 AppliedTheory Corporation
4766 1779 9485 523 Korea Telecom (KIX)
7545 1626 301 84 TPG Internet Pty Ltd
20115 1578 1537 646 Charter Communications
6478 1516 298 48 AT&T Worldnet Services
4755 1413 637 162 Videsh Sanchar Nigam Ltd. Aut
17974 1398 459 29 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 2625 2222 Time Warner Telecom
1785 1786 1654 AppliedTheory Corporation
19262 1844 1559 Verizon Global Networks
7545 1626 1542 TPG Internet Pty Ltd
6478 1516 1468 AT&T Worldnet Services
17974 1398 1369 PT TELEKOMUNIKASI INDONESIA
4766 1779 1256 Korea Telecom (KIX)
4755 1413 1251 Videsh Sanchar Nigam Ltd. Aut
11492 1282 1209 Cable One
10620 1371 1206 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 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
5.1.0.0/21 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
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /10:26 /11:73 /12:215
/13:444 /14:769 /15:1389 /16:11598 /17:5878 /18:9621
/19:19320 /20:25016 /21:25155 /22:33344 /23:32150 /24:182963
/25:381 /26:351 /27:219 /28:380 /29:330 /30:760
/31:47 /32:668
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3700 bellsouth.net, inc.
6478 1470 1516 AT&T Worldnet Services
4323 1414 2625 Time Warner Telecom
10620 1262 1371 TVCABLE BOGOTA
18566 1260 1282 Covad Communications
11492 1239 1282 Cable One
7011 1060 1163 Citizens Utilities
1785 1054 1786 AppliedTheory Corporation
6503 967 1191 AVANTEL, S.A.
19262 954 1844 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:176 2:59 4:17 5:1 8:331 12:2033
13:1 14:412 15:15 16:3 17:8 20:9
23:1 24:1499 27:581 32:127 33:5 34:2
37:1 38:703 40:101 41:2247 44:3 46:637
47:5 49:144 50:90 52:12 55:5 56:2
57:43 58:854 59:479 60:391 61:1116 62:1090
63:1950 64:3807 65:2358 66:4177 67:1789 68:1182
69:3003 70:779 71:405 72:2019 73:3 74:2376
75:304 76:354 77:871 78:708 79:459 80:1057
81:862 82:555 83:475 84:671 85:1079 86:561
87:772 88:360 89:1627 90:156 91:3478 92:497
93:1056 94:1219 95:770 96:428 97:251 98:796
99:33 101:28 107:3 108:88 109:970 110:470
111:694 112:311 113:362 114:502 115:642 116:949
117:679 118:665 119:1015 120:243 121:702 122:1639
123:1062 124:1292 125:1225 128:265 129:155 130:172
131:570 132:109 133:20 134:219 135:49 136:216
137:147 138:292 139:133 140:493 141:196 142:359
143:382 144:487 145:51 146:431 147:210 148:635
149:274 150:155 151:230 152:306 153:179 154:3
155:350 156:176 157:341 158:129 159:380 160:315
161:205 162:274 163:159 164:487 165:357 166:499
167:422 168:742 169:154 170:753 171:68 172:2
173:1309 174:523 175:316 176:1 177:4 178:762
180:803 182:355 183:251 184:243 186:993 187:822
188:993 189:1041 190:4370 192:5840 193:4825 194:3554
195:3103 196:1183 197:3 198:3587 199:3827 200:5549
201:1589 202:8436 203:8473 204:4110 205:2338 206:2642
207:3085 208:3916 209:3501 210:2662 211:1337 212:1939
213:1778 214:756 215:62 216:4904 217:1627 218:536
219:377 220:1206 221:451 222:342 223:97
End of report
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