Routing Table Report 00:00 GMT Tue 01 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: 352763
Prefixes after maximum aggregation: 158544
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172109
Total ASes present in the Internet Routing Table: 35994
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 31068
Origin ASes announcing only one prefix: 14909
Transit ASes present in the Internet Routing Table: 4926
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 432
Unregistered ASNs in the Routing Table: 184
Number of 32-bit ASNs allocated by the RIRs: 1155
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 207
Number of addresses announced to Internet: 2367167294
Equivalent to 141 /8s, 24 /16s and 27 /24s
Percentage of available address space announced: 63.9
Percentage of allocated address space announced: 63.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.3
Total number of prefixes smaller than registry allocations: 145840
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84769
Total APNIC prefixes after maximum aggregation: 28461
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81702
Unique aggregates announced from the APNIC address blocks: 35997
APNIC Region origin ASes present in the Internet Routing Table: 4329
APNIC Prefixes per ASN: 18.87
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 672
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 592395970
Equivalent to 35 /8s, 79 /16s and 62 /24s
Percentage of available APNIC address space announced: 75.1
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: 142634
Total ARIN prefixes after maximum aggregation: 73619
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113023
Unique aggregates announced from the ARIN address blocks: 45025
ARIN Region origin ASes present in the Internet Routing Table: 14237
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1463
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787537049
Equivalent to 46 /8s, 240 /16s and 220 /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: 85490
Total RIPE prefixes after maximum aggregation: 47113
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 77965
Unique aggregates announced from the RIPE address blocks: 49265
RIPE Region origin ASes present in the Internet Routing Table: 15380
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7741
RIPE Region transit ASes present in the Internet Routing Table: 2367
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 461443260
Equivalent to 27 /8s, 129 /16s and 16 /24s
Percentage of available RIPE address space announced: 74.3
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: 32080
Total LACNIC prefixes after maximum aggregation: 7427
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30893
Unique aggregates announced from the LACNIC address blocks: 16065
LACNIC Region origin ASes present in the Internet Routing Table: 1437
LACNIC Prefixes per ASN: 21.50
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 81038220
Equivalent to 4 /8s, 212 /16s and 139 /24s
Percentage of available LACNIC address space announced: 53.7
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: 7532
Total AfriNIC prefixes after maximum aggregation: 1815
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5937
Unique aggregates announced from the AfriNIC address blocks: 1835
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21890048
Equivalent to 1 /8s, 78 /16s and 4 /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 1857 9492 581 Korea Telecom (KIX)
7545 1587 302 86 TPG Internet Pty Ltd
4755 1414 637 165 Videsh Sanchar Nigam Ltd. Aut
17974 1388 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1115 323 184 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 985 2070 280 CNCGROUP IP network: China169
17488 955 161 102 Hathway IP Over Cable Interne
18101 931 117 139 Reliance Infocom Ltd Internet
9829 895 761 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 3687 3855 262 bellsouth.net, inc.
4323 2602 1109 403 Time Warner Telecom
1785 1788 697 132 AppliedTheory Corporation
19262 1787 4938 285 Verizon Global Networks
20115 1578 1538 647 Charter Communications
6478 1517 296 112 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1364 6730 887 AT&T WorldNet Services
2386 1296 538 939 AT&T Data Communications Serv
11492 1285 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
286 992 761 160 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 470 267 15 Kazakhtelecom Corporate Sales
34984 465 98 145 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 415 97 320 Akamai Technologies European
3320 406 7604 354 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 1383 257 166 TVCABLE BOGOTA
8151 1351 2667 362 Uninet S.A. de C.V.
28573 1232 961 82 Types of queries are: POCs, o
6503 1173 354 73 AVANTEL, S.A.
7303 907 464 143 Telecom Argentina Stet-France
14420 642 57 93 Types of queries are: POCs, o
22047 538 310 15 Types of queries are: POCs, o
3816 511 222 100 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 468 53 50 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 799 445 11 TEDATA
24863 772 147 40 LINKdotNET AS number
15475 476 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 150 439 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 3687 3855 262 bellsouth.net, inc.
4323 2602 1109 403 Time Warner Telecom
4766 1857 9492 581 Korea Telecom (KIX)
1785 1788 697 132 AppliedTheory Corporation
19262 1787 4938 285 Verizon Global Networks
7545 1587 302 86 TPG Internet Pty Ltd
20115 1578 1538 647 Charter Communications
6478 1517 296 112 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1414 637 165 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 2602 2199 Time Warner Telecom
1785 1788 1656 AppliedTheory Corporation
19262 1787 1502 Verizon Global Networks
7545 1587 1501 TPG Internet Pty Ltd
6478 1517 1405 AT&T Worldnet Services
17974 1388 1359 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 Covad Communications
4766 1857 1276 Korea Telecom (KIX)
4755 1414 1249 Videsh Sanchar Nigam Ltd. Aut
10620 1383 1217 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
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
41.57.192.0/18 22750 BCSNET
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 /8:20 /9:10 /10:26 /11:73 /12:216
/13:444 /14:766 /15:1397 /16:11643 /17:5899 /18:9640
/19:19389 /20:25117 /21:25399 /22:33739 /23:32323 /24:183842
/25:396 /26:376 /27:197 /28:337 /29:224 /30:616
/31:48 /32:626
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2275 3687 bellsouth.net, inc.
6478 1471 1517 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1402 2602 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1242 1285 Cable One
1785 1055 1788 AppliedTheory Corporation
7011 1055 1155 Citizens Utilities
6503 955 1173 AVANTEL, S.A.
19262 899 1787 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:259 2:63 4:17 5:1 8:340 12:2030
13:1 14:413 15:15 16:3 17:8 20:9
23:1 24:1509 27:594 31:1 32:127 33:4
34:2 37:1 38:708 40:101 41:2302 44:3
46:650 47:4 49:154 50:97 52:12 55:3
56:2 57:42 58:863 59:478 60:384 61:1110
62:1069 63:1935 64:3871 65:2362 66:4268 67:1808
68:1221 69:2971 70:771 71:404 72:2019 73:3
74:2398 75:305 76:355 77:878 78:699 79:457
80:1082 81:815 82:533 83:475 84:647 85:1067
86:578 87:781 88:360 89:1599 90:158 91:3554
92:495 93:1062 94:1222 95:786 96:455 97:250
98:792 99:33 101:35 107:4 108:119 109:934
110:476 111:721 112:312 113:386 114:503 115:651
116:965 117:682 118:685 119:1035 120:251 121:693
122:1619 123:1057 124:1311 125:1256 128:267 129:159
130:172 131:561 132:110 133:20 134:221 135:49
136:215 137:146 138:295 139:130 140:489 141:203
142:357 143:386 144:489 145:51 146:438 147:214
148:633 149:273 150:168 151:230 152:297 153:180
154:3 155:377 156:176 157:345 158:128 159:382
160:314 161:208 162:279 163:156 164:486 165:361
166:503 167:409 168:734 169:160 170:757 171:69
172:2 173:1237 174:505 175:320 176:1 177:25
178:780 180:813 181:2 182:374 183:242 184:280
186:1025 187:830 188:902 189:1052 190:4561 192:5803
193:4822 194:3563 195:3107 196:1194 197:4 198:3598
199:3841 200:5597 201:1588 202:8443 203:8469 204:4088
205:2304 206:2660 207:3077 208:3941 209:3479 210:2646
211:1348 212:1986 213:1794 214:766 215:63 216:4880
217:1658 218:551 219:375 220:1206 221:453 222:338
223:105
End of report
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