Routing Table Report 00:00 GMT Thu 03 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: 349268
Prefixes after maximum aggregation: 156818
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169904
Total ASes present in the Internet Routing Table: 35804
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 30847
Origin ASes announcing only one prefix: 14920
Transit ASes present in the Internet Routing Table: 4957
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 728
Unregistered ASNs in the Routing Table: 195
Number of 32-bit ASNs allocated by the RIRs: 1067
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 216
Number of addresses announced to Internet: 2354867647
Equivalent to 140 /8s, 92 /16s and 109 /24s
Percentage of available address space announced: 63.5
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 97.7
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 144191
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83717
Total APNIC prefixes after maximum aggregation: 28020
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80615
Unique aggregates announced from the APNIC address blocks: 35559
APNIC Region origin ASes present in the Internet Routing Table: 4304
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 679
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586840002
Equivalent to 34 /8s, 250 /16s and 119 /24s
Percentage of available APNIC address space announced: 76.0
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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 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: 141430
Total ARIN prefixes after maximum aggregation: 72981
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111949
Unique aggregates announced from the ARIN address blocks: 44433
ARIN Region origin ASes present in the Internet Routing Table: 14185
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5410
ARIN Region transit ASes present in the Internet Routing Table: 1479
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 751815817
Equivalent to 44 /8s, 207 /16s and 204 /24s
Percentage of available ARIN address space announced: 63.1
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: 84840
Total RIPE prefixes after maximum aggregation: 46599
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77317
Unique aggregates announced from the RIPE address blocks: 48568
RIPE Region origin ASes present in the Internet Routing Table: 15279
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7719
RIPE Region transit ASes present in the Internet Routing Table: 2388
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457679177
Equivalent to 27 /8s, 71 /16s and 161 /24s
Percentage of available RIPE address space announced: 75.8
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: 31592
Total LACNIC prefixes after maximum aggregation: 7246
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30354
Unique aggregates announced from the LACNIC address blocks: 15830
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.30
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 80418444
Equivalent to 4 /8s, 203 /16s and 22 /24s
Percentage of available LACNIC address space announced: 59.9
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: 7429
Total AfriNIC prefixes after maximum aggregation: 1855
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 5867
Unique aggregates announced from the AfriNIC address blocks: 1817
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21745408
Equivalent to 1 /8s, 75 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 43.2
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 1759 9484 515 Korea Telecom (KIX)
7545 1616 301 85 TPG Internet Pty Ltd
4755 1406 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 180 Bharti Airtel Ltd.
9583 1045 76 488 Sify Limited
17488 946 157 125 Hathway IP Over Cable Interne
18101 924 117 142 Reliance Infocom Ltd Internet
4808 903 1939 254 CNCGROUP IP network: China169
9829 896 762 41 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 3703 3855 265 bellsouth.net, inc.
4323 2627 1109 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1787 697 132 AppliedTheory Corporation
20115 1571 1534 641 Charter Communications
6478 1475 290 103 AT&T Worldnet Services
7018 1357 6682 880 AT&T WorldNet Services
2386 1295 554 933 AT&T Data Communications Serv
22773 1277 2865 78 Cox Communications, Inc.
11492 1264 235 77 Cable One
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
286 980 713 158 KPNQwest Backbone AS
9116 523 328 32 Goldenlines main autonomous s
6830 516 1764 319 UPC Distribution Services
3292 506 2011 391 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 458 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
8551 405 355 38 Bezeq International
3320 403 7619 352 Deutsche Telekom AG
20940 399 91 307 Akamai Technologies European
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 1358 252 163 TVCABLE BOGOTA
8151 1336 2634 360 Uninet S.A. de C.V.
28573 1245 961 82 Types of queries are: POCs, o
6503 1153 355 78 AVANTEL, S.A.
7303 888 461 115 Telecom Argentina Stet-France
14420 621 55 92 Types of queries are: POCs, o
22047 568 310 15 Types of queries are: POCs, o
3816 548 220 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 461 53 48 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
8452 853 445 11 TEDATA
24863 762 147 39 LINKdotNET AS number
36992 635 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
33776 178 11 27 Starcomms Nigeria Limited
16637 156 439 86 Johnnic e-Ventures
36874 139 24 6 Cybersmart
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 3703 3855 265 bellsouth.net, inc.
4323 2627 1109 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1787 697 132 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1616 301 85 TPG Internet Pty Ltd
20115 1571 1534 641 Charter Communications
6478 1475 290 103 AT&T Worldnet Services
4755 1406 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1391 467 27 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 2627 2224 Time Warner Telecom
1785 1787 1655 AppliedTheory Corporation
19262 1842 1559 Verizon Global Networks
7545 1616 1531 TPG Internet Pty Ltd
6478 1475 1372 AT&T Worldnet Services
17974 1391 1364 PT TELEKOMUNIKASI INDONESIA
4755 1406 1248 Videsh Sanchar Nigam Ltd. Aut
4766 1759 1244 Korea Telecom (KIX)
22773 1277 1199 Cox Communications, Inc.
10620 1358 1195 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
13938 UNALLOCATED 12.33.114.0/24 7018 AT&T WorldNet Servic
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
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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
46.227.168.0/21 39904 Merit Group a.s.
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 /8:20 /9:10 /10:26 /11:72 /12:215
/13:441 /14:773 /15:1387 /16:11600 /17:5862 /18:9595
/19:19301 /20:24942 /21:25024 /22:33155 /23:32045 /24:181683
/25:379 /26:357 /27:205 /28:380 /29:326 /30:757
/31:49 /32:664
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2282 3703 bellsouth.net, inc.
6478 1429 1475 AT&T Worldnet Services
4323 1416 2627 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1220 1264 Cable One
18566 1123 1144 Covad Communications
1785 1058 1787 AppliedTheory Corporation
7011 1035 1135 Citizens Utilities
19262 954 1842 Verizon Global Networks
6503 937 1153 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:169 2:47 4:17 5:1 8:333 12:2028
13:1 14:391 15:15 16:3 17:8 20:9
23:1 24:1491 27:570 32:128 33:5 34:2
37:1 38:694 40:101 41:2366 44:3 46:551
47:5 49:142 50:82 52:12 55:5 56:2
57:41 58:889 59:485 60:391 61:1118 62:1082
63:1922 64:3771 65:2363 66:4109 67:1787 68:1161
69:2973 70:757 71:400 72:2033 73:3 74:2367
75:305 76:331 77:854 78:703 79:452 80:1049
81:836 82:545 83:482 84:664 85:1073 86:533
87:760 88:361 89:1626 90:157 91:3458 92:495
93:1055 94:1209 95:790 96:417 97:249 98:765
99:33 101:23 107:3 108:82 109:871 110:471
111:695 112:311 113:352 114:492 115:640 116:924
117:675 118:656 119:1017 120:244 121:702 122:1610
123:1053 124:1290 125:1216 128:263 129:154 130:172
131:569 132:110 133:20 134:219 135:49 136:216
137:147 138:294 139:133 140:489 141:198 142:363
143:381 144:485 145:51 146:415 147:205 148:627
149:273 150:151 151:231 152:306 153:177 154:3
155:347 156:171 157:341 158:128 159:381 160:314
161:205 162:278 163:157 164:486 165:357 166:481
167:420 168:737 169:155 170:747 171:66 172:2
173:1274 174:523 175:313 176:1 177:12 178:780
180:776 182:341 183:249 184:240 186:983 187:794
188:913 189:1024 190:4378 192:5825 193:4829 194:3556
195:3083 196:1183 197:3 198:3592 199:3752 200:5559
201:1582 202:8408 203:8428 204:4100 205:2347 206:2649
207:3055 208:3891 209:3501 210:2645 211:1332 212:1926
213:1735 214:750 215:62 216:4835 217:1623 218:529
219:373 220:1204 221:451 222:343 223:93
End of report
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