Routing Table Report 00:00 GMT Tue 15 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: 351071
Prefixes after maximum aggregation: 157641
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171200
Total ASes present in the Internet Routing Table: 35875
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 31000
Origin ASes announcing only one prefix: 14914
Transit ASes present in the Internet Routing Table: 4875
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: 25
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 404
Unregistered ASNs in the Routing Table: 153
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: 201
Number of addresses announced to Internet: 2394167275
Equivalent to 142 /8s, 180 /16s and 23 /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: 145136
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84155
Total APNIC prefixes after maximum aggregation: 28128
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 81037
Unique aggregates announced from the APNIC address blocks: 35804
APNIC Region origin ASes present in the Internet Routing Table: 4311
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 673
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 589182914
Equivalent to 35 /8s, 30 /16s and 55 /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: 142172
Total ARIN prefixes after maximum aggregation: 73369
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112728
Unique aggregates announced from the ARIN address blocks: 44840
ARIN Region origin ASes present in the Internet Routing Table: 14210
ARIN Prefixes per ASN: 7.93
ARIN Region origin ASes announcing only one prefix: 5393
ARIN Region transit ASes present in the Internet Routing Table: 1424
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786674617
Equivalent to 46 /8s, 227 /16s and 179 /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: 85430
Total RIPE prefixes after maximum aggregation: 46827
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77970
Unique aggregates announced from the RIPE address blocks: 48870
RIPE Region origin ASes present in the Internet Routing Table: 15323
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: 2363
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 459601221
Equivalent to 27 /8s, 100 /16s and 245 /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: 31696
Total LACNIC prefixes after maximum aggregation: 7401
LACNIC Deaggregation factor: 4.28
Prefixes being announced from the LACNIC address blocks: 30460
Unique aggregates announced from the LACNIC address blocks: 15946
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.35
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80717708
Equivalent to 4 /8s, 207 /16s and 167 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7368
Total AfriNIC prefixes after maximum aggregation: 1804
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 5776
Unique aggregates announced from the AfriNIC address blocks: 1835
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 21842688
Equivalent to 1 /8s, 77 /16s and 75 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1793 9486 535 Korea Telecom (KIX)
7545 1625 301 84 TPG Internet Pty Ltd
4755 1415 637 164 Videsh Sanchar Nigam Ltd. Aut
17974 1406 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1109 323 181 Bharti Airtel Ltd.
9583 1043 77 488 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 3699 3855 263 bellsouth.net, inc.
4323 2626 1125 404 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 132 AppliedTheory Corporation
20115 1578 1537 646 Charter Communications
6478 1508 295 87 AT&T Worldnet Services
7018 1370 6715 889 AT&T WorldNet Services
2386 1300 554 937 AT&T Data Communications Serv
18566 1282 311 104 Covad Communications
22773 1275 2865 78 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
286 978 713 158 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 464 266 14 Kazakhtelecom Corporate Sales
34984 456 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 22 Bulgarian Telecommunication C
20940 410 95 316 Akamai Technologies European
3320 406 7620 355 Deutsche Telekom AG
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 1373 255 166 TVCABLE BOGOTA
8151 1349 2653 362 Uninet S.A. de C.V.
28573 1237 961 82 Types of queries are: POCs, o
6503 1187 354 75 AVANTEL, S.A.
7303 891 447 141 Telecom Argentina Stet-France
14420 638 57 92 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 467 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 746 445 11 TEDATA
36992 585 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
15475 198 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 3699 3855 263 bellsouth.net, inc.
4323 2626 1125 404 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
4766 1793 9486 535 Korea Telecom (KIX)
1785 1785 697 132 AppliedTheory Corporation
7545 1625 301 84 TPG Internet Pty Ltd
20115 1578 1537 646 Charter Communications
6478 1508 295 87 AT&T Worldnet Services
4755 1415 637 164 Videsh Sanchar Nigam Ltd. Aut
17974 1406 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 2626 2222 Time Warner Telecom
1785 1785 1653 AppliedTheory Corporation
19262 1842 1559 Verizon Global Networks
7545 1625 1541 TPG Internet Pty Ltd
6478 1508 1421 AT&T Worldnet Services
17974 1406 1377 PT TELEKOMUNIKASI INDONESIA
4766 1793 1258 Korea Telecom (KIX)
4755 1415 1251 Videsh Sanchar Nigam Ltd. Aut
10620 1373 1207 TVCABLE BOGOTA
22773 1275 1197 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
5.1.0.0/21 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 /16:11606 /17:5880 /18:9612
/19:19326 /20:25003 /21:25179 /22:33324 /23:32191 /24:182903
/25:383 /26:350 /27:215 /28:371 /29:322 /30:736
/31:47 /32:675
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2280 3699 bellsouth.net, inc.
6478 1462 1508 AT&T Worldnet Services
4323 1415 2626 Time Warner Telecom
10620 1264 1373 TVCABLE BOGOTA
18566 1260 1282 Covad Communications
11492 1226 1269 Cable One
7011 1060 1163 Citizens Utilities
1785 1054 1785 AppliedTheory Corporation
6503 967 1187 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:182 2:57 4:17 5:1 8:333 12:2035
13:1 14:411 15:15 16:3 17:8 20:9
23:1 24:1494 27:580 32:120 33:5 34:2
37:1 38:702 40:101 41:2265 44:3 46:603
47:4 49:147 50:90 52:12 55:5 56:2
57:43 58:854 59:479 60:391 61:1115 62:1084
63:1950 64:3809 65:2363 66:4173 67:1791 68:1182
69:3011 70:779 71:405 72:2042 73:3 74:2376
75:304 76:354 77:871 78:709 79:459 80:1057
81:861 82:539 83:480 84:652 85:1083 86:561
87:779 88:360 89:1616 90:156 91:3482 92:494
93:1056 94:1218 95:774 96:422 97:251 98:798
99:33 101:30 107:3 108:88 109:966 110:472
111:700 112:311 113:353 114:502 115:653 116:949
117:677 118:664 119:1013 120:243 121:702 122:1636
123:1062 124:1299 125:1230 128:267 129:155 130:172
131:569 132:109 133:20 134:220 135:49 136:215
137:147 138:292 139:127 140:493 141:203 142:360
143:387 144:487 145:51 146:431 147:214 148:635
149:274 150:155 151:230 152:306 153:179 154:3
155:350 156:176 157:342 158:129 159:380 160:315
161:207 162:274 163:158 164:487 165:357 166:500
167:422 168:742 169:154 170:754 171:69 172:2
173:1312 174:521 175:315 176:1 177:6 178:792
180:804 182:359 183:248 184:244 186:1005 187:821
188:871 189:1041 190:4371 192:5839 193:4829 194:3559
195:3086 196:1186 197:3 198:3587 199:3835 200:5527
201:1591 202:8447 203:8474 204:4099 205:2343 206:2650
207:3085 208:3918 209:3503 210:2662 211:1338 212:1940
213:1779 214:766 215:62 216:4904 217:1619 218:538
219:377 220:1206 221:451 222:342 223:98
End of report
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