Routing Table Report 00:00 GMT Mon 07 Mar, 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: 353593
Prefixes after maximum aggregation: 158786
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172274
Total ASes present in the Internet Routing Table: 36032
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 31054
Origin ASes announcing only one prefix: 14909
Transit ASes present in the Internet Routing Table: 4978
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 31
Max AS path prepend of ASN (16181) 22
Prefixes from unregistered ASNs in the Routing Table: 460
Unregistered ASNs in the Routing Table: 196
Number of 32-bit ASNs allocated by the RIRs: 1179
Prefixes from 32-bit ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 258
Number of addresses announced to Internet: 2456499451
Equivalent to 146 /8s, 107 /16s and 52 /24s
Percentage of available address space announced: 66.3
Percentage of allocated address space announced: 66.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 146280
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84902
Total APNIC prefixes after maximum aggregation: 28578
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 81798
Unique aggregates announced from the APNIC address blocks: 36151
APNIC Region origin ASes present in the Internet Routing Table: 4338
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 594736065
Equivalent to 35 /8s, 114 /16s and 243 /24s
Percentage of available APNIC address space announced: 75.4
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, 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: 143095
Total ARIN prefixes after maximum aggregation: 73612
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113418
Unique aggregates announced from the ARIN address blocks: 44891
ARIN Region origin ASes present in the Internet Routing Table: 14238
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5393
ARIN Region transit ASes present in the Internet Routing Table: 1447
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787679128
Equivalent to 46 /8s, 243 /16s and 7 /24s
Percentage of available ARIN address space announced: 62.6
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: 85644
Total RIPE prefixes after maximum aggregation: 47255
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78108
Unique aggregates announced from the RIPE address blocks: 49297
RIPE Region origin ASes present in the Internet Routing Table: 15414
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7736
RIPE Region transit ASes present in the Internet Routing Table: 2415
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 479017084
Equivalent to 28 /8s, 141 /16s and 56 /24s
Percentage of available RIPE address space announced: 77.2
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, 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: 32108
Total LACNIC prefixes after maximum aggregation: 7413
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30955
Unique aggregates announced from the LACNIC address blocks: 16121
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.56
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81371788
Equivalent to 4 /8s, 217 /16s and 162 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7588
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 5962
Unique aggregates announced from the AfriNIC address blocks: 1832
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21894912
Equivalent to 1 /8s, 78 /16s and 23 /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 1863 9493 590 Korea Telecom (KIX)
7545 1578 301 82 TPG Internet Pty Ltd
4755 1422 377 163 Videsh Sanchar Nigam Ltd. Aut
17974 1402 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1117 324 186 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 1001 2086 285 CNCGROUP IP network: China169
17488 956 161 102 Hathway IP Over Cable Interne
18101 933 117 141 Reliance Infocom Ltd Internet
9829 893 762 49 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 3682 3839 260 bellsouth.net, inc.
4323 2580 1125 403 Time Warner Telecom
19262 1830 4953 283 Verizon Global Networks
1785 1793 697 131 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
6478 1533 298 89 AT&T Worldnet Services
18566 1522 326 178 Covad Communications
7018 1378 6748 901 AT&T WorldNet Services
2386 1297 538 937 AT&T Data Communications Serv
11492 1288 236 70 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 1004 761 160 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 515 1780 319 UPC Distribution Services
3292 502 1996 390 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
34984 466 98 146 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 420 99 323 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 404 7604 352 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
10620 1384 258 163 TVCABLE BOGOTA
8151 1372 2683 366 Uninet S.A. de C.V.
28573 1224 961 83 Types of queries are: POCs, o
6503 1178 354 74 AVANTEL, S.A.
7303 911 464 146 Telecom Argentina Stet-France
14420 644 56 93 Types of queries are: POCs, o
22047 541 310 15 Types of queries are: POCs, o
3816 516 225 95 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 471 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
8452 836 445 11 TEDATA
24863 769 147 39 LINKdotNET AS number
15475 446 90 8 Nile Online
36992 301 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 227 78 10 RAYA Telecom - Egypt
6713 200 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 144 422 86 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 3682 3839 260 bellsouth.net, inc.
4323 2580 1125 403 Time Warner Telecom
4766 1863 9493 590 Korea Telecom (KIX)
19262 1830 4953 283 Verizon Global Networks
1785 1793 697 131 AppliedTheory Corporation
7545 1578 301 82 TPG Internet Pty Ltd
20115 1577 1537 650 Charter Communications
6478 1533 298 89 AT&T Worldnet Services
18566 1522 326 178 Covad Communications
4755 1422 377 163 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 2580 2177 Time Warner Telecom
1785 1793 1662 AppliedTheory Corporation
19262 1830 1547 Verizon Global Networks
7545 1578 1496 TPG Internet Pty Ltd
6478 1533 1444 AT&T Worldnet Services
17974 1402 1373 PT TELEKOMUNIKASI INDONESIA
18566 1522 1344 Covad Communications
4766 1863 1273 Korea Telecom (KIX)
4755 1422 1259 Videsh Sanchar Nigam Ltd. Aut
10620 1384 1221 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
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /8:24 /9:10 /10:26 /11:73 /12:217
/13:446 /14:771 /15:1399 /16:11674 /17:5894 /18:9638
/19:19501 /20:25211 /21:25520 /22:33840 /23:32415 /24:184252
/25:385 /26:356 /27:170 /28:304 /29:181 /30:619
/31:52 /32:615
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3682 bellsouth.net, inc.
18566 1500 1522 Covad Communications
6478 1487 1533 AT&T Worldnet Services
4323 1388 2580 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1245 1288 Cable One
7011 1057 1158 Citizens Utilities
1785 1055 1793 AppliedTheory Corporation
6503 959 1178 AVANTEL, S.A.
19262 941 1830 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:264 2:64 4:18 5:1 8:340 9:1
12:2014 13:1 14:424 15:15 16:3 17:8
20:9 23:1 24:1521 27:596 31:3 32:127
33:4 34:2 36:2 37:1 38:712 39:1
40:101 41:2328 42:13 44:3 46:700 47:4
49:163 50:180 52:13 55:3 56:2 57:43
58:860 59:479 60:384 61:1113 62:1046 63:1932
64:3873 65:2350 66:4338 67:1805 68:1223 69:2983
70:745 71:412 72:2034 73:3 74:2405 75:305
76:349 77:854 78:701 79:460 80:1069 81:799
82:533 83:474 84:657 85:1067 86:578 87:786
88:362 89:1600 90:169 91:3581 92:496 93:1065
94:1249 95:793 96:463 97:252 98:818 99:34
101:50 106:1 107:4 108:129 109:916 110:477
111:722 112:318 113:389 114:508 115:668 116:959
117:677 118:688 119:1004 120:259 121:703 122:1625
123:1044 124:1312 125:1259 128:267 129:168 130:172
131:561 132:108 133:20 134:220 135:49 136:211
137:146 138:300 139:132 140:487 141:203 142:375
143:376 144:488 145:51 146:431 147:213 148:647
149:265 150:169 151:230 152:298 153:180 154:3
155:376 156:178 157:344 158:130 159:376 160:311
161:210 162:278 163:160 164:487 165:363 166:502
167:409 168:727 169:160 170:758 171:69 172:2
173:1262 174:524 175:322 176:1 177:35 178:793
180:815 181:4 182:397 183:244 184:314 186:1038
187:809 188:913 189:1032 190:4590 192:5810 193:4810
194:3536 195:3093 196:1204 197:4 198:3588 199:3852
200:5581 201:1596 202:8412 203:8471 204:4106 205:2308
206:2663 207:3071 208:3903 209:3488 210:2637 211:1357
212:1982 213:1787 214:755 215:63 216:4862 217:1662
218:551 219:374 220:1206 221:474 222:344 223:103
End of report
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