Routing Table Report 00:00 GMT Mon 07 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: 350384
Prefixes after maximum aggregation: 157147
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 170573
Total ASes present in the Internet Routing Table: 35819
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 30920
Origin ASes announcing only one prefix: 14914
Transit ASes present in the Internet Routing Table: 4899
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 26
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 509
Unregistered ASNs in the Routing Table: 156
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: 201
Number of addresses announced to Internet: 2382699455
Equivalent to 142 /8s, 5 /16s and 27 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
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: 144928
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83881
Total APNIC prefixes after maximum aggregation: 28118
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 80699
Unique aggregates announced from the APNIC address blocks: 35654
APNIC Region origin ASes present in the Internet Routing Table: 4307
APNIC Prefixes per ASN: 18.74
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 672
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 588998082
Equivalent to 35 /8s, 27 /16s and 101 /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: 141788
Total ARIN prefixes after maximum aggregation: 73064
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112316
Unique aggregates announced from the ARIN address blocks: 44608
ARIN Region origin ASes present in the Internet Routing Table: 14183
ARIN Prefixes per ASN: 7.92
ARIN Region origin ASes announcing only one prefix: 5387
ARIN Region transit ASes present in the Internet Routing Table: 1446
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 752290953
Equivalent to 44 /8s, 215 /16s and 12 /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: 85200
Total RIPE prefixes after maximum aggregation: 46681
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 77702
Unique aggregates announced from the RIPE address blocks: 48692
RIPE Region origin ASes present in the Internet Routing Table: 15305
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7733
RIPE Region transit ASes present in the Internet Routing Table: 2365
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 457452617
Equivalent to 27 /8s, 68 /16s and 44 /24s
Percentage of available RIPE address space announced: 73.7
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: 31738
Total LACNIC prefixes after maximum aggregation: 7326
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30476
Unique aggregates announced from the LACNIC address blocks: 15891
LACNIC Region origin ASes present in the Internet Routing Table: 1426
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80416396
Equivalent to 4 /8s, 203 /16s and 14 /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: 7503
Total AfriNIC prefixes after maximum aggregation: 1847
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 5908
Unique aggregates announced from the AfriNIC address blocks: 1792
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.71
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC addresses announced to Internet: 21742848
Equivalent to 1 /8s, 75 /16s and 197 /24s
Percentage of available AfriNIC address space announced: 32.4
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 1759 9484 515 Korea Telecom (KIX)
7545 1633 301 84 TPG Internet Pty Ltd
4755 1405 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1387 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1099 318 182 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 967 162 104 Hathway IP Over Cable Interne
4808 948 2056 275 CNCGROUP IP network: China169
18101 926 117 142 Reliance Infocom Ltd Internet
9829 887 759 51 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 2623 1125 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1788 697 132 AppliedTheory Corporation
20115 1572 1536 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1357 6698 876 AT&T WorldNet Services
2386 1296 554 934 AT&T Data Communications Serv
22773 1277 2864 77 Cox Communications, Inc.
11492 1264 235 79 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
286 981 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1764 319 UPC Distribution Services
3292 505 2011 390 TDC Tele Danmark
9198 464 266 14 Kazakhtelecom Corporate Sales
34984 458 97 137 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
8551 405 355 38 Bezeq International
3320 404 7617 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 1374 255 164 TVCABLE BOGOTA
8151 1341 2631 362 Uninet S.A. de C.V.
28573 1244 961 82 Types of queries are: POCs, o
6503 1187 355 79 AVANTEL, S.A.
7303 887 461 117 Telecom Argentina Stet-France
14420 625 56 93 Types of queries are: POCs, o
22047 548 310 15 Types of queries are: POCs, o
3816 500 220 94 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 463 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 822 445 11 TEDATA
24863 763 147 40 LINKdotNET AS number
36992 641 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 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 156 439 86 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 3704 3855 265 bellsouth.net, inc.
4323 2623 1125 403 Time Warner Telecom
19262 1842 4935 283 Verizon Global Networks
1785 1788 697 132 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1633 301 84 TPG Internet Pty Ltd
20115 1572 1536 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
4755 1405 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1387 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 2623 2220 Time Warner Telecom
1785 1788 1656 AppliedTheory Corporation
19262 1842 1559 Verizon Global Networks
7545 1633 1549 TPG Internet Pty Ltd
6478 1482 1401 AT&T Worldnet Services
17974 1387 1360 PT TELEKOMUNIKASI INDONESIA
4755 1405 1247 Videsh Sanchar Nigam Ltd. Aut
4766 1759 1244 Korea Telecom (KIX)
10620 1374 1210 TVCABLE BOGOTA
22773 1277 1200 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 4323 Time Warner Telecom
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
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<<
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 /8:19 /9:11 /10:26 /11:74 /12:221
/13:444 /14:777 /15:1398 /16:11658 /17:5867 /18:9611
/19:19315 /20:24971 /21:25070 /22:33345 /23:32094 /24:182334
/25:377 /26:359 /27:211 /28:381 /29:331 /30:766
/31:50 /32:674
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2283 3704 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1410 2623 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1221 1264 Cable One
18566 1160 1182 Covad Communications
7011 1062 1163 Citizens Utilities
1785 1054 1788 AppliedTheory Corporation
6503 964 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)
----------------------------------------------
1:171 2:54 4:17 5:1 8:334 12:2013
13:1 14:398 15:15 16:3 17:8 20:9
21:2 23:1 24:1491 27:574 32:128 33:5
34:2 37:1 38:696 40:101 41:2339 44:3
46:554 47:5 49:143 50:83 52:12 55:4
56:2 57:42 58:867 59:485 60:391 61:1119
62:1108 63:1934 64:3777 65:2363 66:4150 67:1797
68:1160 69:2986 70:758 71:402 72:2041 73:3
74:2375 75:304 76:351 77:875 78:712 79:455
80:1054 81:864 82:546 83:482 84:663 85:1077
86:536 87:773 88:362 89:1633 90:156 91:3472
92:496 93:1053 94:1223 95:810 96:416 97:250
98:792 99:33 101:23 107:3 108:82 109:910
110:472 111:693 112:312 113:353 114:495 115:641
116:937 117:675 118:649 119:1006 120:243 121:701
122:1629 123:1061 124:1291 125:1217 128:265 129:154
130:172 131:567 132:110 133:20 134:219 135:49
136:216 137:146 138:292 139:133 140:490 141:197
142:359 143:378 144:481 145:51 146:429 147:203
148:629 149:274 150:151 151:231 152:306 153:177
154:3 155:347 156:176 157:343 158:128 159:379
160:315 161:205 162:277 163:161 164:487 165:356
166:482 167:420 168:741 169:155 170:751 171:66
172:2 173:1287 174:525 175:313 176:1 177:12
178:787 180:778 182:344 183:250 184:240 186:981
187:797 188:916 189:1052 190:4384 192:5830 193:4821
194:3560 195:3091 196:1185 197:3 198:3592 199:3768
200:5591 201:1590 202:8421 203:8458 204:4104 205:2343
206:2649 207:3085 208:3908 209:3502 210:2647 211:1333
212:1932 213:1774 214:749 215:62 216:4838 217:1628
218:531 219:377 220:1205 221:451 222:343 223:94
End of report
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