Routing Table Report 00:00 GMT Fri 11 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: 350944
Prefixes after maximum aggregation: 157476
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 170936
Total ASes present in the Internet Routing Table: 35869
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 30958
Origin ASes announcing only one prefix: 14933
Transit ASes present in the Internet Routing Table: 4911
Transit-only ASes present in the Internet Routing Table: 105
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 25
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 415
Unregistered ASNs in the Routing Table: 157
Number of 32-bit ASNs allocated by the RIRs: 1101
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: 217
Number of addresses announced to Internet: 2390217483
Equivalent to 142 /8s, 119 /16s and 211 /24s
Percentage of available address space announced: 64.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.8
Total number of prefixes smaller than registry allocations: 144996
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84034
Total APNIC prefixes after maximum aggregation: 28075
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80948
Unique aggregates announced from the APNIC address blocks: 35771
APNIC Region origin ASes present in the Internet Routing Table: 4307
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 681
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 586875586
Equivalent to 34 /8s, 251 /16s and 2 /24s
Percentage of available APNIC address space announced: 74.4
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: 142059
Total ARIN prefixes after maximum aggregation: 73327
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112624
Unique aggregates announced from the ARIN address blocks: 44739
ARIN Region origin ASes present in the Internet Routing Table: 14208
ARIN Prefixes per ASN: 7.93
ARIN Region origin ASes announcing only one prefix: 5405
ARIN Region transit ASes present in the Internet Routing Table: 1445
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 786347161
Equivalent to 46 /8s, 222 /16s and 180 /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: 85332
Total RIPE prefixes after maximum aggregation: 46789
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77845
Unique aggregates announced from the RIPE address blocks: 48796
RIPE Region origin ASes present in the Internet Routing Table: 15325
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7737
RIPE Region transit ASes present in the Internet Routing Table: 2366
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 458665605
Equivalent to 27 /8s, 86 /16s and 174 /24s
Percentage of available RIPE address space announced: 73.9
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: 31783
Total LACNIC prefixes after maximum aggregation: 7351
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30550
Unique aggregates announced from the LACNIC address blocks: 15925
LACNIC Region origin ASes present in the Internet Routing Table: 1429
LACNIC Prefixes per ASN: 21.38
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: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80583052
Equivalent to 4 /8s, 205 /16s and 153 /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: 7468
Total AfriNIC prefixes after maximum aggregation: 1819
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5873
Unique aggregates announced from the AfriNIC address blocks: 1831
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.50
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: 4.1
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 21857536
Equivalent to 1 /8s, 77 /16s and 133 /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 1791 9485 519 Korea Telecom (KIX)
7545 1627 301 85 TPG Internet Pty Ltd
4755 1410 377 159 Videsh Sanchar Nigam Ltd. Aut
17974 1406 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1108 323 181 Bharti Airtel Ltd.
9583 1042 76 487 Sify Limited
17488 967 162 104 Hathway IP Over Cable Interne
18101 930 117 144 Reliance Infocom Ltd Internet
4808 918 1972 261 CNCGROUP IP network: China169
9829 897 763 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 3704 3855 265 bellsouth.net, inc.
4323 2622 1125 403 Time Warner Telecom
19262 1843 4951 284 Verizon Global Networks
1785 1788 697 131 AppliedTheory Corporation
20115 1579 1538 645 Charter Communications
6478 1499 296 65 AT&T Worldnet Services
7018 1360 6699 879 AT&T WorldNet Services
2386 1298 553 935 AT&T Data Communications Serv
22773 1276 2865 78 Cox Communications, Inc.
11492 1267 235 78 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
286 978 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 514 1764 318 UPC Distribution Services
3292 503 1996 387 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 456 97 136 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
20940 406 94 312 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 403 7617 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 1374 255 164 TVCABLE BOGOTA
8151 1350 2645 363 Uninet S.A. de C.V.
28573 1244 961 82 Types of queries are: POCs, o
6503 1191 355 79 AVANTEL, S.A.
7303 891 447 143 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 505 220 95 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 467 53 49 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 775 445 11 TEDATA
24863 764 147 40 LINKdotNET AS number
36992 583 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
15475 220 56 9 Nile Online
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
16637 149 422 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 3704 3855 265 bellsouth.net, inc.
4323 2622 1125 403 Time Warner Telecom
19262 1843 4951 284 Verizon Global Networks
4766 1791 9485 519 Korea Telecom (KIX)
1785 1788 697 131 AppliedTheory Corporation
7545 1627 301 85 TPG Internet Pty Ltd
20115 1579 1538 645 Charter Communications
6478 1499 296 65 AT&T Worldnet Services
4755 1410 377 159 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 2622 2219 Time Warner Telecom
1785 1788 1657 AppliedTheory Corporation
19262 1843 1559 Verizon Global Networks
7545 1627 1542 TPG Internet Pty Ltd
6478 1499 1434 AT&T Worldnet Services
17974 1406 1377 PT TELEKOMUNIKASI INDONESIA
4766 1791 1272 Korea Telecom (KIX)
4755 1410 1251 Videsh Sanchar Nigam Ltd. Aut
10620 1374 1210 TVCABLE BOGOTA
22773 1276 1198 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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
31.28.0.0/19 29076 Hoster.RU autonomous system
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
41.222.79.0/24 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 /8:21 /9:10 /10:26 /11:72 /12:215
/13:442 /14:770 /15:1388 /16:11597 /17:5881 /18:9623
/19:19326 /20:25033 /21:25118 /22:33347 /23:32140 /24:182770
/25:381 /26:360 /27:231 /28:386 /29:332 /30:762
/31:47 /32:666
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2282 3704 bellsouth.net, inc.
6478 1453 1499 AT&T Worldnet Services
4323 1410 2622 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1224 1267 Cable One
18566 1206 1228 Covad Communications
7011 1062 1165 Citizens Utilities
1785 1055 1788 AppliedTheory Corporation
6503 967 1191 AVANTEL, S.A.
19262 954 1843 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 2:60 4:17 5:1 8:333 12:2029
13:1 14:421 15:15 16:3 17:8 20:9
23:1 24:1488 27:579 32:128 33:5 34:2
37:1 38:700 40:101 41:2288 44:3 46:582
47:5 49:145 50:82 52:12 55:6 56:2
57:43 58:866 59:483 60:391 61:1116 62:1115
63:1950 64:3788 65:2363 66:4159 67:1788 68:1163
69:3016 70:753 71:403 72:2039 73:3 74:2375
75:304 76:350 77:873 78:710 79:445 80:1058
81:862 82:550 83:482 84:667 85:1077 86:546
87:771 88:362 89:1612 90:156 91:3469 92:496
93:1051 94:1218 95:769 96:426 97:251 98:797
99:33 101:27 107:3 108:88 109:970 110:471
111:698 112:310 113:360 114:498 115:641 116:951
117:679 118:662 119:1018 120:243 121:703 122:1635
123:1061 124:1290 125:1222 128:265 129:155 130:172
131:570 132:109 133:20 134:219 135:49 136:216
137:147 138:292 139:130 140:492 141:196 142:360
143:385 144:487 145:51 146:431 147:204 148:636
149:274 150:162 151:231 152:306 153:179 154:3
155:350 156:176 157:343 158:129 159:380 160:315
161:205 162:272 163:161 164:488 165:355 166:496
167:420 168:741 169:154 170:755 171:68 172:2
173:1298 174:521 175:315 176:1 177:4 178:761
180:794 182:350 183:252 184:240 186:1002 187:807
188:911 189:1049 190:4375 192:5833 193:4825 194:3561
195:3103 196:1174 197:3 198:3591 199:3834 200:5600
201:1591 202:8434 203:8468 204:4117 205:2342 206:2642
207:3083 208:3915 209:3504 210:2662 211:1333 212:1934
213:1784 214:759 215:62 216:4868 217:1625 218:535
219:377 220:1211 221:451 222:342 223:94
End of report
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