Routing Table Report 00:00 GMT Tue 22 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: 352064
Prefixes after maximum aggregation: 158156
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171713
Total ASes present in the Internet Routing Table: 35934
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 31055
Origin ASes announcing only one prefix: 14918
Transit ASes present in the Internet Routing Table: 4879
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 416
Unregistered ASNs in the Routing Table: 168
Number of 32-bit ASNs allocated by the RIRs: 1137
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 198
Number of addresses announced to Internet: 2397939136
Equivalent to 142 /8s, 237 /16s and 165 /24s
Percentage of available address space announced: 64.7
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 145612
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84357
Total APNIC prefixes after maximum aggregation: 28318
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81291
Unique aggregates announced from the APNIC address blocks: 35921
APNIC Region origin ASes present in the Internet Routing Table: 4322
APNIC Prefixes per ASN: 18.81
APNIC Region origin ASes announcing only one prefix: 1221
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: 17
Number of APNIC addresses announced to Internet: 590603970
Equivalent to 35 /8s, 51 /16s and 230 /24s
Percentage of available APNIC address space announced: 74.9
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: 142725
Total ARIN prefixes after maximum aggregation: 73509
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113222
Unique aggregates announced from the ARIN address blocks: 44936
ARIN Region origin ASes present in the Internet Routing Table: 14220
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5385
ARIN Region transit ASes present in the Internet Routing Table: 1442
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787528345
Equivalent to 46 /8s, 240 /16s and 186 /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: 85602
Total RIPE prefixes after maximum aggregation: 46987
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 78158
Unique aggregates announced from the RIPE address blocks: 49182
RIPE Region origin ASes present in the Internet Routing Table: 15354
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7740
RIPE Region transit ASes present in the Internet Routing Table: 2334
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460698685
Equivalent to 27 /8s, 117 /16s and 180 /24s
Percentage of available RIPE address space announced: 74.2
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: 31830
Total LACNIC prefixes after maximum aggregation: 7405
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30579
Unique aggregates announced from the LACNIC address blocks: 15911
LACNIC Region origin ASes present in the Internet Routing Table: 1430
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80822412
Equivalent to 4 /8s, 209 /16s and 64 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7291
Total AfriNIC prefixes after maximum aggregation: 1824
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 5709
Unique aggregates announced from the AfriNIC address blocks: 1820
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.12
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21883904
Equivalent to 1 /8s, 77 /16s and 236 /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 1838 9491 580 Korea Telecom (KIX)
7545 1611 302 87 TPG Internet Pty Ltd
4755 1426 633 164 Videsh Sanchar Nigam Ltd. Aut
17974 1409 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1113 323 182 Bharti Airtel Ltd.
9583 1044 77 488 Sify Limited
4808 996 2078 285 CNCGROUP IP network: China169
17488 965 162 103 Hathway IP Over Cable Interne
18101 931 117 141 Reliance Infocom Ltd Internet
9829 894 762 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 3693 3855 261 bellsouth.net, inc.
4323 2616 1125 406 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
1785 1787 697 131 AppliedTheory Corporation
20115 1576 1537 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
7018 1371 6715 887 AT&T WorldNet Services
2386 1296 554 933 AT&T Data Communications Serv
11492 1280 236 73 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 515 1780 319 UPC Distribution Services
3292 501 1996 389 TDC Tele Danmark
9198 468 267 15 Kazakhtelecom Corporate Sales
34984 463 98 143 Tellcom Iletisim Hizmetleri
8866 437 133 23 Bulgarian Telecommunication C
20940 413 97 320 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
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 255 166 TVCABLE BOGOTA
8151 1350 2663 357 Uninet S.A. de C.V.
28573 1232 961 82 Types of queries are: POCs, o
6503 1168 354 74 AVANTEL, S.A.
7303 903 463 143 Telecom Argentina Stet-France
14420 638 57 92 Types of queries are: POCs, o
22047 545 310 15 Types of queries are: POCs, o
3816 510 221 96 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 476 37 42 Telefonica del Sur 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
24863 677 147 40 LINKdotNET AS number
8452 653 445 11 TEDATA
15475 497 90 12 Nile Online
36992 302 271 14 Etisalat MISR
3741 263 987 225 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 201 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 157 439 88 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 3693 3855 261 bellsouth.net, inc.
4323 2616 1125 406 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
4766 1838 9491 580 Korea Telecom (KIX)
1785 1787 697 131 AppliedTheory Corporation
7545 1611 302 87 TPG Internet Pty Ltd
20115 1576 1537 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
4755 1426 633 164 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 2616 2210 Time Warner Telecom
1785 1787 1656 AppliedTheory Corporation
19262 1844 1560 Verizon Global Networks
7545 1611 1524 TPG Internet Pty Ltd
6478 1518 1439 AT&T Worldnet Services
17974 1409 1380 PT TELEKOMUNIKASI INDONESIA
18566 1435 1279 Covad Communications
4755 1426 1262 Videsh Sanchar Nigam Ltd. Aut
4766 1838 1258 Korea Telecom (KIX)
10620 1374 1208 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
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
31.24.0.0/21 16082 Spitfire Digital Networks Aut
31.24.8.0/21 8758 Interway Communication GmbH
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
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 /9:10 /10:26 /11:73 /12:216
/13:446 /14:769 /15:1399 /16:11625 /17:5898 /18:9625
/19:19364 /20:25077 /21:25274 /22:33404 /23:32163 /24:183522
/25:401 /26:372 /27:213 /28:389 /29:332 /30:736
/31:46 /32:662
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2280 3693 bellsouth.net, inc.
6478 1472 1518 AT&T Worldnet Services
18566 1413 1435 Covad Communications
4323 1407 2616 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1237 1280 Cable One
7011 1057 1160 Citizens Utilities
1785 1054 1787 AppliedTheory Corporation
19262 954 1844 Verizon Global Networks
6503 951 1168 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:218 2:69 4:17 5:1 8:336 12:2032
13:1 14:409 15:15 16:3 17:8 20:9
23:1 24:1505 27:586 32:127 33:4 34:2
37:1 38:705 40:101 41:2208 44:3 46:645
47:4 49:149 50:93 52:12 55:2 56:2
57:42 58:862 59:477 60:390 61:1112 62:1077
63:1946 64:3859 65:2362 66:4250 67:1808 68:1183
69:3031 70:778 71:410 72:2045 73:3 74:2400
75:304 76:355 77:879 78:709 79:461 80:1071
81:827 82:535 83:485 84:645 85:1065 86:564
87:776 88:360 89:1610 90:156 91:3524 92:492
93:1050 94:1226 95:786 96:454 97:251 98:832
99:33 101:31 107:3 108:88 109:940 110:482
111:706 112:311 113:370 114:500 115:654 116:945
117:680 118:676 119:1019 120:245 121:698 122:1622
123:1056 124:1312 125:1260 128:266 129:159 130:170
131:564 132:109 133:20 134:221 135:49 136:215
137:147 138:294 139:132 140:490 141:203 142:360
143:380 144:487 145:51 146:437 147:213 148:637
149:266 150:160 151:230 152:298 153:179 154:3
155:350 156:176 157:343 158:130 159:380 160:314
161:209 162:275 163:157 164:485 165:356 166:503
167:421 168:743 169:153 170:755 171:69 172:25
173:1333 174:536 175:320 176:1 177:13 178:794
180:809 182:365 183:248 184:278 186:1011 187:805
188:895 189:1060 190:4387 192:5846 193:4822 194:3569
195:3095 196:1199 197:3 198:3588 199:3837 200:5586
201:1589 202:8439 203:8468 204:4097 205:2341 206:2656
207:3084 208:3923 209:3498 210:2648 211:1343 212:1979
213:1773 214:760 215:62 216:4863 217:1645 218:549
219:379 220:1204 221:453 222:337 223:97
End of report
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