Routing Table Report 00:00 GMT Mon 02 May, 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: 360527
Prefixes after maximum aggregation: 162396
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175803
Total ASes present in the Internet Routing Table: 37442
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31364
Origin ASes announcing only one prefix: 15028
Transit ASes present in the Internet Routing Table: 5043
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 3015
Unregistered ASNs in the Routing Table: 314
Number of 32-bit ASNs allocated by the RIRs: 1321
Number of 32-bit ASNs visible in the Routing Table: 1035
Prefixes from 32-bit ASNs in the Routing Table: 2319
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 147
Number of addresses announced to Internet: 2421610491
Equivalent to 144 /8s, 86 /16s and 215 /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: 149646
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86859
Total APNIC prefixes after maximum aggregation: 28830
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83408
Unique aggregates announced from the APNIC address blocks: 36929
APNIC Region origin ASes present in the Internet Routing Table: 4410
APNIC Prefixes per ASN: 18.91
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 611505857
Equivalent to 36 /8s, 114 /16s and 214 /24s
Percentage of available APNIC address space announced: 77.6
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: 143106
Total ARIN prefixes after maximum aggregation: 73271
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115192
Unique aggregates announced from the ARIN address blocks: 45200
ARIN Region origin ASes present in the Internet Routing Table: 14348
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5465
ARIN Region transit ASes present in the Internet Routing Table: 1458
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 799881752
Equivalent to 47 /8s, 173 /16s and 58 /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: 87381
Total RIPE prefixes after maximum aggregation: 48295
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79759
Unique aggregates announced from the RIPE address blocks: 51022
RIPE Region origin ASes present in the Internet Routing Table: 15591
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7763
RIPE Region transit ASes present in the Internet Routing Table: 2467
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 770
Number of RIPE addresses announced to Internet: 468000380
Equivalent to 27 /8s, 229 /16s and 30 /24s
Percentage of available RIPE address space announced: 75.4
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: 32785
Total LACNIC prefixes after maximum aggregation: 7511
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31805
Unique aggregates announced from the LACNIC address blocks: 16556
LACNIC Region origin ASes present in the Internet Routing Table: 1441
LACNIC Prefixes per ASN: 22.07
LACNIC Region origin ASes announcing only one prefix: 425
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 201
Number of LACNIC addresses announced to Internet: 82962188
Equivalent to 4 /8s, 241 /16s and 231 /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: 7764
Total AfriNIC prefixes after maximum aggregation: 1850
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6112
Unique aggregates announced from the AfriNIC address blocks: 1908
AfriNIC Region origin ASes present in the Internet Routing Table: 445
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23365120
Equivalent to 1 /8s, 100 /16s and 134 /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 1875 9498 603 Korea Telecom (KIX)
17974 1804 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1470 301 82 TPG Internet Pty Ltd
4755 1456 374 164 Videsh Sanchar Nigam Ltd. Aut
7552 1211 1064 7 Vietel Corporation
24560 1156 336 184 Bharti Airtel Ltd.
9583 1056 77 492 Sify Limited
9829 1010 874 51 BSNL National Internet Backbo
17488 960 165 100 Hathway IP Over Cable Interne
4808 955 2026 277 CNCGROUP IP network: China169
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 3645 3822 256 bellsouth.net, inc.
4323 2603 1102 397 Time Warner Telecom
18566 1790 349 229 Covad Communications
1785 1788 681 127 AppliedTheory Corporation
6478 1658 311 46 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1496 4949 299 Verizon Global Networks
7018 1359 6927 894 AT&T WorldNet Services
22773 1300 2865 84 Cox Communications, Inc.
2386 1270 535 912 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 1027 798 176 KPNQwest Backbone AS
9116 541 326 30 Goldenlines main autonomous s
6830 520 1780 321 UPC Distribution Services
3292 518 1997 391 TDC Tele Danmark
34984 509 106 182 Tellcom Iletisim Hizmetleri
29049 450 33 48 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 447 131 341 Akamai Technologies European
3320 422 7609 367 Deutsche Telekom AG
8551 407 356 39 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 1448 268 160 TVCABLE BOGOTA
8151 1356 2671 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 853 354 74 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 519 226 98 COLOMBIA TELECOMUNICACIONES S
14117 492 46 43 Telefonica del Sur S.A.
27947 491 53 52 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 884 445 11 TEDATA
24863 780 147 40 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 299 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 221 12 9 Starcomms Nigeria Limited
24835 213 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 3645 3822 256 bellsouth.net, inc.
4323 2603 1102 397 Time Warner Telecom
23456 2319 661 1271 >>UNKNOWN<<
4766 1875 9498 603 Korea Telecom (KIX)
17974 1804 507 30 PT TELEKOMUNIKASI INDONESIA
18566 1790 349 229 Covad Communications
1785 1788 681 127 AppliedTheory Corporation
6478 1658 311 46 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1496 4949 299 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 2603 2206 Time Warner Telecom
17974 1804 1774 PT TELEKOMUNIKASI INDONESIA
1785 1788 1661 AppliedTheory Corporation
6478 1658 1612 AT&T Worldnet Services
18566 1790 1561 Covad Communications
7545 1470 1388 TPG Internet Pty Ltd
4755 1456 1292 Videsh Sanchar Nigam Ltd. Aut
10620 1448 1288 TVCABLE BOGOTA
4766 1875 1272 Korea Telecom (KIX)
11492 1262 1247 Cable One
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 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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 NetworkTwo Communications Gro
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /14:795 /15:1415 /16:11787 /17:6006 /18:9942
/19:19725 /20:26303 /21:26060 /22:34252 /23:33223 /24:187537
/25:372 /26:348 /27:168 /28:273 /29:181 /30:609
/31:63 /32:649
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2245 3645 bellsouth.net, inc.
18566 1758 1790 Covad Communications
6478 1612 1658 AT&T Worldnet Services
10620 1338 1448 TVCABLE BOGOTA
4323 1309 2603 Time Warner Telecom
11492 1211 1262 Cable One
23456 1167 2319 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1054 1788 AppliedTheory Corporation
286 887 1027 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:263 2:68 4:18 5:1 6:3 8:352
12:1991 13:1 14:438 15:15 16:3 17:8
20:10 23:5 24:1630 27:730 31:233 32:126
33:3 34:2 37:1 38:767 40:101 41:2451
42:5 44:3 46:887 47:4 49:171 50:375
52:13 55:5 56:2 57:40 58:844 59:483
60:356 61:1268 62:1021 63:1942 64:3976 65:2320
66:4383 67:1892 68:1259 69:3073 70:743 71:351
72:1924 73:3 74:2418 75:313 76:346 77:877
78:695 79:474 80:1111 81:824 82:510 83:458
84:667 85:1090 86:605 87:778 88:329 89:1631
90:183 91:3732 92:514 93:1072 94:1295 95:803
96:478 97:254 98:833 99:35 101:68 103:5
106:1 107:6 108:83 109:950 110:558 111:696
112:320 113:398 114:535 115:687 116:964 117:681
118:810 119:1136 120:306 121:678 122:1620 123:1076
124:1256 125:1219 128:262 129:166 130:172 131:566
132:112 133:19 134:219 135:49 136:214 137:143
138:303 139:118 140:482 141:174 142:403 143:400
144:487 145:52 146:439 147:217 148:590 149:243
150:171 151:187 152:309 153:179 154:3 155:395
156:190 157:353 158:132 159:382 160:314 161:213
162:277 163:164 164:494 165:369 166:511 167:428
168:726 169:154 170:789 171:76 172:1 173:1551
174:541 175:359 177:82 178:865 180:819 181:16
182:431 183:205 184:339 185:1 186:1151 187:813
188:992 189:971 190:4852 192:5823 193:4869 194:3523
195:3108 196:1215 197:16 198:3577 199:3928 200:5527
201:1519 202:8344 203:8421 204:4144 205:2325 206:2769
207:3035 208:3968 209:3479 210:2736 211:1389 212:2025
213:1758 214:718 215:67 216:4905 217:1657 218:566
219:375 220:1204 221:486 222:342 223:143
End of report
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