Routing Table Report 00:00 GMT Thu 03 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: 352998
Prefixes after maximum aggregation: 158653
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172087
Total ASes present in the Internet Routing Table: 36002
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 30981
Origin ASes announcing only one prefix: 14899
Transit ASes present in the Internet Routing Table: 5021
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 27
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 455
Unregistered ASNs in the Routing Table: 187
Number of 32-bit ASNs allocated by the RIRs: 1159
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: 205
Number of addresses announced to Internet: 2368746814
Equivalent to 141 /8s, 48 /16s and 53 /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: 88.8
Total number of prefixes smaller than registry allocations: 145830
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84915
Total APNIC prefixes after maximum aggregation: 28476
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81857
Unique aggregates announced from the APNIC address blocks: 36097
APNIC Region origin ASes present in the Internet Routing Table: 4332
APNIC Prefixes per ASN: 18.90
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 682
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 27
Number of APNIC addresses announced to Internet: 593550786
Equivalent to 35 /8s, 96 /16s and 221 /24s
Percentage of available APNIC address space announced: 75.3
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: 142739
Total ARIN prefixes after maximum aggregation: 73654
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113062
Unique aggregates announced from the ARIN address blocks: 44836
ARIN Region origin ASes present in the Internet Routing Table: 14225
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5378
ARIN Region transit ASes present in the Internet Routing Table: 1454
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787670425
Equivalent to 46 /8s, 242 /16s and 229 /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: 85515
Total RIPE prefixes after maximum aggregation: 47196
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 77996
Unique aggregates announced from the RIPE address blocks: 49333
RIPE Region origin ASes present in the Internet Routing Table: 15409
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7745
RIPE Region transit ASes present in the Internet Routing Table: 2457
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 461787836
Equivalent to 27 /8s, 134 /16s and 82 /24s
Percentage of available RIPE address space announced: 74.4
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: 32044
Total LACNIC prefixes after maximum aggregation: 7410
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30983
Unique aggregates announced from the LACNIC address blocks: 16099
LACNIC Region origin ASes present in the Internet Routing Table: 1435
LACNIC Prefixes per ASN: 21.59
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81203852
Equivalent to 4 /8s, 215 /16s and 18 /24s
Percentage of available LACNIC address space announced: 53.8
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: 7519
Total AfriNIC prefixes after maximum aggregation: 1808
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 5895
Unique aggregates announced from the AfriNIC address blocks: 1826
AfriNIC Region origin ASes present in the Internet Routing Table: 429
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 21884928
Equivalent to 1 /8s, 77 /16s and 240 /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 1865 9493 589 Korea Telecom (KIX)
7545 1589 301 85 TPG Internet Pty Ltd
4755 1422 378 163 Videsh Sanchar Nigam Ltd. Aut
17974 1398 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1116 323 185 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 955 161 102 Hathway IP Over Cable Interne
4808 941 2029 271 CNCGROUP IP network: China169
18101 934 117 141 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 3683 3855 261 bellsouth.net, inc.
4323 2597 1125 403 Time Warner Telecom
1785 1789 697 132 AppliedTheory Corporation
19262 1787 4954 285 Verizon Global Networks
20115 1577 1537 650 Charter Communications
6478 1523 296 110 AT&T Worldnet Services
18566 1518 325 180 Covad Communications
7018 1368 6731 891 AT&T WorldNet Services
2386 1294 537 937 AT&T Data Communications Serv
11492 1286 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
286 996 761 160 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 514 1780 318 UPC Distribution Services
3292 500 1996 388 TDC Tele Danmark
9198 469 267 15 Kazakhtelecom Corporate Sales
34984 466 98 146 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 416 98 319 Akamai Technologies European
3320 405 7604 353 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 1355 2685 362 Uninet S.A. de C.V.
28573 1223 961 82 Types of queries are: POCs, o
6503 1183 354 73 AVANTEL, S.A.
7303 909 464 146 Telecom Argentina Stet-France
14420 644 56 93 Types of queries are: POCs, o
22047 542 310 15 Types of queries are: POCs, o
3816 514 224 96 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 469 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 770 147 39 LINKdotNET AS number
15475 440 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 220 78 10 RAYA Telecom - Egypt
6713 211 199 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 3683 3855 261 bellsouth.net, inc.
4323 2597 1125 403 Time Warner Telecom
4766 1865 9493 589 Korea Telecom (KIX)
1785 1789 697 132 AppliedTheory Corporation
19262 1787 4954 285 Verizon Global Networks
7545 1589 301 85 TPG Internet Pty Ltd
20115 1577 1537 650 Charter Communications
6478 1523 296 110 AT&T Worldnet Services
18566 1518 325 180 Covad Communications
4755 1422 378 163 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 2597 2194 Time Warner Telecom
1785 1789 1657 AppliedTheory Corporation
7545 1589 1504 TPG Internet Pty Ltd
19262 1787 1502 Verizon Global Networks
6478 1523 1413 AT&T Worldnet Services
17974 1398 1369 PT TELEKOMUNIKASI INDONESIA
18566 1518 1338 Covad Communications
4766 1865 1276 Korea Telecom (KIX)
4755 1422 1259 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 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
24.129.192.0/19 7922 Continental Cablevision
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.29.0.0/19 12997 Kyrgyztelecom's Network
31.184.128.0/18 51074 Gostaresh Ertebatate Mabna Co
41.57.192.0/18 22750 BCSNET
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 /9:10 /10:26 /11:73 /12:217
/13:444 /14:771 /15:1396 /16:11642 /17:5900 /18:9631
/19:19424 /20:25138 /21:25424 /22:33759 /23:32365 /24:184020
/25:386 /26:361 /27:193 /28:321 /29:209 /30:597
/31:49 /32:623
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3683 bellsouth.net, inc.
18566 1495 1518 Covad Communications
6478 1477 1523 AT&T Worldnet Services
4323 1396 2597 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1243 1286 Cable One
7011 1057 1158 Citizens Utilities
1785 1055 1789 AppliedTheory Corporation
6503 965 1183 AVANTEL, S.A.
19262 898 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 2:64 4:17 5:1 8:334 12:2032
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1517 27:592 31:3 32:127 33:4
34:2 37:1 38:705 40:101 41:2288 44:3
46:645 47:4 49:156 50:101 52:13 55:2
56:2 57:42 58:863 59:479 60:384 61:1117
62:1053 63:1936 64:3871 65:2347 66:4322 67:1804
68:1225 69:2982 70:770 71:405 72:2032 73:3
74:2401 75:305 76:355 77:846 78:700 79:458
80:1081 81:803 82:534 83:475 84:644 85:1066
86:575 87:784 88:360 89:1596 90:160 91:3574
92:496 93:1070 94:1231 95:784 96:455 97:253
98:797 99:33 101:33 107:4 108:118 109:913
110:471 111:721 112:317 113:401 114:507 115:661
116:971 117:681 118:690 119:1032 120:250 121:696
122:1622 123:1057 124:1311 125:1261 128:267 129:160
130:171 131:561 132:108 133:20 134:214 135:49
136:215 137:146 138:296 139:132 140:486 141:203
142:375 143:384 144:490 145:51 146:437 147:211
148:640 149:264 150:167 151:230 152:297 153:180
154:3 155:376 156:177 157:316 158:127 159:382
160:313 161:208 162:278 163:155 164:487 165:361
166:502 167:409 168:728 169:160 170:757 171:69
172:2 173:1242 174:513 175:321 176:1 177:33
178:782 180:813 181:4 182:396 183:242 184:277
186:1031 187:837 188:908 189:1049 190:4606 192:5806
193:4824 194:3560 195:3109 196:1218 197:4 198:3594
199:3835 200:5620 201:1592 202:8442 203:8469 204:4085
205:2300 206:2658 207:3076 208:3920 209:3483 210:2653
211:1353 212:1985 213:1780 214:758 215:63 216:4878
217:1667 218:551 219:379 220:1206 221:476 222:341
223:104
End of report
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