Routing Table Report 00:00 GMT Fri 29 Apr, 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: 360446
Prefixes after maximum aggregation: 162238
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175105
Total ASes present in the Internet Routing Table: 37444
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31471
Origin ASes announcing only one prefix: 15044
Transit ASes present in the Internet Routing Table: 4943
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 24
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 3010
Unregistered ASNs in the Routing Table: 308
Number of 32-bit ASNs allocated by the RIRs: 1315
Number of 32-bit ASNs visible in the Routing Table: 1030
Prefixes from 32-bit ASNs in the Routing Table: 2317
Special use prefixes present in the Routing Table: 76
Prefixes being announced from unallocated address space: 156
Number of addresses announced to Internet: 2421264633
Equivalent to 144 /8s, 81 /16s and 144 /24s
Percentage of available address space announced: 65.3
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.6
Total number of prefixes smaller than registry allocations: 149643
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86886
Total APNIC prefixes after maximum aggregation: 28821
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83433
Unique aggregates announced from the APNIC address blocks: 36536
APNIC Region origin ASes present in the Internet Routing Table: 4403
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 683
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 611362241
Equivalent to 36 /8s, 112 /16s and 165 /24s
Percentage of available APNIC address space announced: 77.5
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: 143103
Total ARIN prefixes after maximum aggregation: 73229
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115143
Unique aggregates announced from the ARIN address blocks: 45155
ARIN Region origin ASes present in the Internet Routing Table: 14357
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5468
ARIN Region transit ASes present in the Internet Routing Table: 1449
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 799856408
Equivalent to 47 /8s, 172 /16s and 215 /24s
Percentage of available ARIN address space announced: 63.6
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: 87329
Total RIPE prefixes after maximum aggregation: 48228
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79698
Unique aggregates announced from the RIPE address blocks: 50809
RIPE Region origin ASes present in the Internet Routing Table: 15589
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7774
RIPE Region transit ASes present in the Internet Routing Table: 2389
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 764
Number of RIPE addresses announced to Internet: 467731580
Equivalent to 27 /8s, 225 /16s and 4 /24s
Percentage of available RIPE address space announced: 75.3
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: 32739
Total LACNIC prefixes after maximum aggregation: 7504
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31758
Unique aggregates announced from the LACNIC address blocks: 16514
LACNIC Region origin ASes present in the Internet Routing Table: 1441
LACNIC Prefixes per ASN: 22.04
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 202
Number of LACNIC addresses announced to Internet: 82824204
Equivalent to 4 /8s, 239 /16s and 204 /24s
Percentage of available LACNIC address space announced: 54.9
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: 7777
Total AfriNIC prefixes after maximum aggregation: 1847
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6115
Unique aggregates announced from the AfriNIC address blocks: 1907
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23368704
Equivalent to 1 /8s, 100 /16s and 148 /24s
Percentage of available AfriNIC address space announced: 34.8
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 1871 9474 599 Korea Telecom (KIX)
17974 1827 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1469 301 83 TPG Internet Pty Ltd
4755 1456 634 166 Videsh Sanchar Nigam Ltd. Aut
7552 1210 1064 7 Vietel Corporation
24560 1158 336 190 Bharti Airtel Ltd.
9583 1056 78 494 Sify Limited
9829 1006 870 50 BSNL National Internet Backbo
17488 959 165 100 Hathway IP Over Cable Interne
18101 934 116 138 Reliance Infocom Ltd Internet
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 3646 3822 255 bellsouth.net, inc.
4323 2631 1102 398 Time Warner Telecom
1785 1791 681 129 AppliedTheory Corporation
18566 1790 349 229 Covad Communications
6478 1653 311 47 AT&T Worldnet Services
20115 1583 1554 644 Charter Communications
19262 1495 4933 298 Verizon Global Networks
7018 1349 6814 890 AT&T WorldNet Services
22773 1300 2865 84 Cox Communications, Inc.
2386 1267 535 911 AT&T Data Communications Serv
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 1021 798 175 KPNQwest Backbone AS
9116 541 326 30 Goldenlines main autonomous s
6830 521 1780 322 UPC Distribution Services
3292 519 1997 392 TDC Tele Danmark
34984 509 106 182 Tellcom Iletisim Hizmetleri
29049 450 33 48 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 446 130 340 Akamai Technologies European
3320 422 7609 367 Deutsche Telekom AG
12479 408 577 6 Uni2 Autonomous System
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 1446 268 160 TVCABLE BOGOTA
8151 1357 2689 366 Uninet S.A. de C.V.
28573 1289 988 87 Types of queries are: POCs, o
7303 927 467 149 Telecom Argentina Stet-France
6503 903 354 73 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 518 226 97 COLOMBIA TELECOMUNICACIONES S
14117 492 46 43 Telefonica del Sur S.A.
11172 490 100 83 Alestra
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 880 445 11 TEDATA
24863 779 147 39 LINKdotNET AS number
15475 434 90 8 Nile Online
36992 299 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 239 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 151 441 86 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 3646 3822 255 bellsouth.net, inc.
4323 2631 1102 398 Time Warner Telecom
23456 2317 660 1256 >>UNKNOWN<<
4766 1871 9474 599 Korea Telecom (KIX)
17974 1827 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1791 681 129 AppliedTheory Corporation
18566 1790 349 229 Covad Communications
6478 1653 311 47 AT&T Worldnet Services
20115 1583 1554 644 Charter Communications
19262 1495 4933 298 Verizon Global Networks
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 2631 2233 Time Warner Telecom
17974 1827 1797 PT TELEKOMUNIKASI INDONESIA
1785 1791 1662 AppliedTheory Corporation
6478 1653 1606 AT&T Worldnet Services
18566 1790 1561 Covad Communications
7545 1469 1386 TPG Internet Pty Ltd
4755 1456 1290 Videsh Sanchar Nigam Ltd. Aut
10620 1446 1286 TVCABLE BOGOTA
4766 1871 1272 Korea Telecom (KIX)
22773 1300 1216 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
15132 UNALLOCATED 12.9.150.0/24 1239 Sprint
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
13317 UNALLOCATED 12.44.10.0/24 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
24.225.128.0/18 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
31.193.128.0/20 29550 Blueconnex Networks Ltd
31.193.168.0/21 31708 Coreix Limited
31.200.0.0/17 12978 Dogan Iletisim Elektronik Ser
41.222.79.0/24 36938 >>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 /8:21 /9:12 /10:28 /11:78 /12:221
/13:459 /14:794 /15:1415 /16:11784 /17:6002 /18:9946
/19:19699 /20:26308 /21:26053 /22:34245 /23:33177 /24:187473
/25:394 /26:392 /27:168 /28:274 /29:186 /30:620
/31:63 /32:634
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2246 3646 bellsouth.net, inc.
18566 1758 1790 Covad Communications
6478 1607 1653 AT&T Worldnet Services
10620 1336 1446 TVCABLE BOGOTA
4323 1332 2631 Time Warner Telecom
11492 1169 1220 Cable One
23456 1168 2317 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1059 1791 AppliedTheory Corporation
286 881 1021 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:264 2:63 4:18 5:1 6:3 8:352
12:1990 13:1 14:435 15:15 16:3 17:8
20:9 23:5 24:1593 27:727 31:233 32:119
33:3 34:2 37:1 38:766 40:101 41:2456
42:5 44:3 46:889 47:4 49:171 50:375
52:13 55:3 56:2 57:40 58:845 59:482
60:356 61:1271 62:1000 63:1945 64:3974 65:2322
66:4391 67:1891 68:1255 69:3071 70:748 71:351
72:1937 73:3 74:2415 75:312 76:341 77:876
78:687 79:473 80:1110 81:822 82:510 83:473
84:668 85:1094 86:613 87:776 88:328 89:1633
90:183 91:3723 92:515 93:1072 94:1296 95:809
96:477 97:250 98:831 99:35 101:68 103:5
106:1 107:5 108:83 109:949 110:560 111:697
112:320 113:397 114:530 115:687 116:969 117:681
118:807 119:1145 120:301 121:674 122:1627 123:1074
124:1250 125:1220 128:265 129:166 130:172 131:568
132:112 133:19 134:219 135:49 136:214 137:142
138:303 139:114 140:490 141:174 142:403 143:402
144:486 145:52 146:442 147:219 148:591 149:243
150:171 151:187 152:309 153:179 154:3 155:394
156:190 157:355 158:133 159:384 160:314 161:247
162:277 163:164 164:494 165:368 166:511 167:425
168:720 169:154 170:789 171:76 172:1 173:1528
174:538 175:361 177:80 178:859 180:815 181:15
182:437 183:202 184:339 185:1 186:1129 187:794
188:994 189:1011 190:4841 192:5821 193:4853 194:3515
195:3107 196:1213 197:16 198:3583 199:3924 200:5533
201:1502 202:8379 203:8442 204:4133 205:2329 206:2768
207:3032 208:3973 209:3489 210:2720 211:1388 212:2019
213:1744 214:723 215:66 216:4900 217:1664 218:566
219:375 220:1203 221:485 222:342 223:145
End of report
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