Routing Table Report 00:00 GMT Thu 10 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: 350999
Prefixes after maximum aggregation: 157467
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 170954
Total ASes present in the Internet Routing Table: 35842
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 30974
Origin ASes announcing only one prefix: 14932
Transit ASes present in the Internet Routing Table: 4868
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 24
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 499
Unregistered ASNs in the Routing Table: 155
Number of 32-bit ASNs allocated by the RIRs: 1092
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: 218
Number of addresses announced to Internet: 2415621579
Equivalent to 143 /8s, 251 /16s and 117 /24s
Percentage of available address space announced: 65.2
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.2
Total number of prefixes smaller than registry allocations: 145228
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84045
Total APNIC prefixes after maximum aggregation: 28190
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 80846
Unique aggregates announced from the APNIC address blocks: 35731
APNIC Region origin ASes present in the Internet Routing Table: 4307
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 670
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 586856130
Equivalent to 34 /8s, 250 /16s and 182 /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: 142233
Total ARIN prefixes after maximum aggregation: 73256
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112691
Unique aggregates announced from the ARIN address blocks: 44733
ARIN Region origin ASes present in the Internet Routing Table: 14199
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5401
ARIN Region transit ASes present in the Internet Routing Table: 1434
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 752527001
Equivalent to 44 /8s, 218 /16s and 166 /24s
Percentage of available ARIN address space announced: 62.3
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,
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: 85244
Total RIPE prefixes after maximum aggregation: 46704
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 77727
Unique aggregates announced from the RIPE address blocks: 48761
RIPE Region origin ASes present in the Internet Routing Table: 15310
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7739
RIPE Region transit ASes present in the Internet Routing Table: 2354
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 458541381
Equivalent to 27 /8s, 84 /16s and 201 /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: 31751
Total LACNIC prefixes after maximum aggregation: 7346
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30526
Unique aggregates announced from the LACNIC address blocks: 15918
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.39
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80520844
Equivalent to 4 /8s, 204 /16s and 166 /24s
Percentage of available LACNIC address space announced: 53.3
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: 7471
Total AfriNIC prefixes after maximum aggregation: 1859
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 5881
Unique aggregates announced from the AfriNIC address blocks: 1838
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 132
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: 18
Number of AfriNIC addresses announced to Internet: 21838848
Equivalent to 1 /8s, 77 /16s and 60 /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 1791 9485 519 Korea Telecom (KIX)
7545 1627 301 85 TPG Internet Pty Ltd
4755 1413 637 161 Videsh Sanchar Nigam Ltd. Aut
17974 1404 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1108 323 181 Bharti Airtel Ltd.
9583 1043 76 487 Sify Limited
17488 967 162 104 Hathway IP Over Cable Interne
18101 926 117 142 Reliance Infocom Ltd Internet
4808 919 1969 261 CNCGROUP IP network: China169
9829 893 762 45 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 3714 3855 266 bellsouth.net, inc.
4323 2624 1125 404 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
20115 1577 1538 643 Charter Communications
6478 1494 296 75 AT&T Worldnet Services
7018 1357 6699 876 AT&T WorldNet Services
2386 1297 553 934 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
286 980 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1764 319 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 354 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 1374 255 164 TVCABLE BOGOTA
8151 1347 2629 364 Uninet S.A. de C.V.
28573 1241 961 82 Types of queries are: POCs, o
6503 1190 355 79 AVANTEL, S.A.
7303 880 447 133 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 501 219 101 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 466 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 780 445 11 TEDATA
24863 763 147 40 LINKdotNET AS number
36992 594 313 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 149 422 84 Johnnic e-Ventures
29975 132 490 17 Vodacom
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 3714 3855 266 bellsouth.net, inc.
4323 2624 1125 404 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
4766 1791 9485 519 Korea Telecom (KIX)
1785 1787 697 133 AppliedTheory Corporation
7545 1627 301 85 TPG Internet Pty Ltd
20115 1577 1538 643 Charter Communications
6478 1494 296 75 AT&T Worldnet Services
4755 1413 637 161 Videsh Sanchar Nigam Ltd. Aut
17974 1404 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 2624 2220 Time Warner Telecom
1785 1787 1654 AppliedTheory Corporation
19262 1842 1559 Verizon Global Networks
7545 1627 1542 TPG Internet Pty Ltd
6478 1494 1419 AT&T Worldnet Services
17974 1404 1375 PT TELEKOMUNIKASI INDONESIA
4766 1791 1272 Korea Telecom (KIX)
4755 1413 1252 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 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /9:11 /10:26 /11:73 /12:221
/13:446 /14:775 /15:1396 /16:11664 /17:5875 /18:9621
/19:19323 /20:24981 /21:25114 /22:33380 /23:32206 /24:182715
/25:381 /26:359 /27:219 /28:386 /29:334 /30:765
/31:49 /32:657
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2291 3714 bellsouth.net, inc.
6478 1448 1494 AT&T Worldnet Services
4323 1412 2624 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1224 1267 Cable One
18566 1175 1197 Covad Communications
7011 1062 1165 Citizens Utilities
1785 1055 1787 AppliedTheory Corporation
6503 966 1190 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)
----------------------------------------------
1:172 2:57 4:17 5:1 8:334 12:2030
13:1 14:422 15:15 16:3 17:8 20:9
23:1 24:1499 27:578 32:128 33:5 34:2
37:1 38:701 40:101 41:2291 44:3 46:573
47:5 49:144 50:82 52:12 55:5 56:2
57:43 58:868 59:485 60:391 61:1116 62:1113
63:1949 64:3780 65:2362 66:4172 67:1802 68:1163
69:3014 70:755 71:401 72:2046 73:3 74:2380
75:305 76:350 77:874 78:702 79:453 80:1054
81:864 82:550 83:481 84:664 85:1075 86:538
87:771 88:362 89:1603 90:156 91:3485 92:495
93:1044 94:1218 95:772 96:426 97:250 98:795
99:33 101:27 107:3 108:86 109:926 110:471
111:698 112:310 113:346 114:497 115:641 116:938
117:678 118:661 119:1016 120:243 121:703 122:1631
123:1061 124:1303 125:1220 128:265 129:155 130:173
131:570 132:109 133:20 134:219 135:49 136:216
137:147 138:291 139:130 140:490 141:196 142:359
143:387 144:488 145:51 146:430 147:210 148:632
149:274 150:159 151:231 152:306 153:177 154:3
155:348 156:176 157:343 158:129 159:379 160:315
161:205 162:271 163:161 164:487 165:356 166:497
167:421 168:741 169:155 170:744 171:68 172:2
173:1291 174:522 175:315 176:1 177:4 178:793
180:792 182:348 183:251 184:240 186:1001 187:816
188:912 189:1047 190:4374 192:5835 193:4827 194:3561
195:3098 196:1181 197:3 198:3590 199:3829 200:5600
201:1577 202:8417 203:8464 204:4120 205:2339 206:2646
207:3082 208:3910 209:3509 210:2655 211:1332 212:1929
213:1775 214:761 215:62 216:4925 217:1615 218:535
219:377 220:1207 221:451 222:342 223:95
End of report
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