Routing Table Report 00:00 GMT Thu 09 Jun, 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: 363696
Prefixes after maximum aggregation: 164160
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178211
Total ASes present in the Internet Routing Table: 37856
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31678
Origin ASes announcing only one prefix: 15129
Transit ASes present in the Internet Routing Table: 5037
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3554
Unregistered ASNs in the Routing Table: 440
Number of 32-bit ASNs allocated by the RIRs: 1436
Number of 32-bit ASNs visible in the Routing Table: 1141
Prefixes from 32-bit ASNs in the Routing Table: 2666
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2487584752
Equivalent to 148 /8s, 69 /16s and 135 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 151625
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86744
Total APNIC prefixes after maximum aggregation: 28959
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 83311
Unique aggregates announced from the APNIC address blocks: 36653
APNIC Region origin ASes present in the Internet Routing Table: 4457
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 619785922
Equivalent to 36 /8s, 241 /16s and 46 /24s
Percentage of available APNIC address space announced: 78.6
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: 143856
Total ARIN prefixes after maximum aggregation: 73733
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115506
Unique aggregates announced from the ARIN address blocks: 45998
ARIN Region origin ASes present in the Internet Routing Table: 14440
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5500
ARIN Region transit ASes present in the Internet Routing Table: 1486
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818794520
Equivalent to 48 /8s, 205 /16s and 208 /24s
Percentage of available ARIN address space announced: 65.1
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: 88697
Total RIPE prefixes after maximum aggregation: 49005
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81352
Unique aggregates announced from the RIPE address blocks: 52088
RIPE Region origin ASes present in the Internet Routing Table: 15709
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7793
RIPE Region transit ASes present in the Internet Routing Table: 2432
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 842
Number of RIPE addresses announced to Internet: 476798580
Equivalent to 28 /8s, 107 /16s and 94 /24s
Percentage of available RIPE address space announced: 76.8
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: 32996
Total LACNIC prefixes after maximum aggregation: 7544
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32262
Unique aggregates announced from the LACNIC address blocks: 16973
LACNIC Region origin ASes present in the Internet Routing Table: 1465
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 235
Number of LACNIC addresses announced to Internet: 84825608
Equivalent to 5 /8s, 14 /16s and 86 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8418
Total AfriNIC prefixes after maximum aggregation: 1950
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 6376
Unique aggregates announced from the AfriNIC address blocks: 1933
AfriNIC Region origin ASes present in the Internet Routing Table: 461
AfriNIC Prefixes per ASN: 13.83
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.8
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: 24120576
Equivalent to 1 /8s, 112 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 35.9
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 1899 9504 617 Korea Telecom (KIX)
17974 1548 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1471 374 165 Videsh Sanchar Nigam Ltd. Aut
24560 1156 337 187 Bharti Airtel Ltd.
7552 1092 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
4808 1038 2085 296 CNCGROUP IP network: China169
9829 1038 876 65 BSNL National Internet Backbo
17488 951 173 105 Hathway IP Over Cable Interne
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 3637 3822 255 bellsouth.net, inc.
4323 1968 1097 402 Time Warner Telecom
18566 1919 363 266 Covad Communications
1785 1792 681 123 AppliedTheory Corporation
6478 1719 318 43 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
19262 1494 4936 309 Verizon Global Networks
7018 1373 7085 899 AT&T WorldNet Services
22773 1339 2897 88 Cox Communications, Inc.
2386 1271 537 913 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 1049 798 192 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
34984 520 106 180 Tellcom Iletisim Hizmetleri
3292 518 2078 400 TDC Tele Danmark
6830 514 1780 320 UPC Distribution Services
20940 469 137 359 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
3320 424 8152 369 Deutsche Telekom AG
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 1512 278 157 TVCABLE BOGOTA
28573 1325 992 79 Types of queries are: POCs, o
8151 1267 2707 362 Uninet S.A. de C.V.
7303 961 505 153 Telecom Argentina Stet-France
6503 739 354 74 AVANTEL, S.A.
14420 677 54 80 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 530 231 93 COLOMBIA TELECOMUNICACIONES S
13489 519 263 122 Orbitel S.A. E.S.P.
7738 516 986 31 Telecomunicacoes da Bahia 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 796 445 11 TEDATA
24863 795 147 37 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 308 415 17 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
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 3637 3822 255 bellsouth.net, inc.
23456 2666 650 1437 >>UNKNOWN<<
4323 1968 1097 402 Time Warner Telecom
18566 1919 363 266 Covad Communications
4766 1899 9504 617 Korea Telecom (KIX)
1785 1792 681 123 AppliedTheory Corporation
6478 1719 318 43 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
17974 1548 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1719 1676 AT&T Worldnet Services
1785 1792 1669 AppliedTheory Corporation
18566 1919 1653 Covad Communications
4323 1968 1566 Time Warner Telecom
17974 1548 1510 PT TELEKOMUNIKASI INDONESIA
7545 1537 1451 TPG Internet Pty Ltd
10620 1512 1355 TVCABLE BOGOTA
4755 1471 1306 Videsh Sanchar Nigam Ltd. Aut
4766 1899 1282 Korea Telecom (KIX)
22773 1339 1251 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 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 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
23502 UNALLOCATED 12.44.44.0/24 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
27.0.128.0/17 7514 Media Exchange, Inc.
31.131.160.0/21 56897 >>UNKNOWN<<
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
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 /9:12 /10:28 /11:81 /12:230
/13:463 /14:805 /15:1422 /16:12041 /17:6090 /18:10075
/19:19873 /20:26510 /21:26434 /22:34609 /23:33710 /24:188534
/25:367 /26:346 /27:184 /28:183 /29:280 /30:684
/31:76 /32:637
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2240 3637 bellsouth.net, inc.
18566 1876 1919 Covad Communications
6478 1673 1719 AT&T Worldnet Services
10620 1402 1512 TVCABLE BOGOTA
23456 1326 2666 >>UNKNOWN<<
11492 1107 1153 Cable One
7011 1062 1161 Citizens Utilities
1785 1050 1792 AppliedTheory Corporation
286 907 1049 KPNQwest Backbone AS
7029 882 1196 Alltel Information Services,
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:281 2:70 4:20 5:1 6:3 8:339
12:1981 13:1 14:459 15:15 16:3 17:8
20:10 23:11 24:1626 27:777 31:429 32:126
33:4 34:2 37:1 38:738 40:102 41:2525
42:6 44:3 46:959 47:3 49:198 50:402
52:13 54:2 55:5 56:2 57:39 58:843
59:477 60:387 61:1124 62:1062 63:1953 64:3961
65:2246 66:4164 67:1895 68:1266 69:3103 70:751
71:374 72:1879 73:2 74:2408 75:323 76:349
77:922 78:707 79:481 80:1100 81:842 82:508
83:492 84:685 85:1088 86:600 87:776 88:337
89:1571 90:205 91:3823 92:528 93:1066 94:1320
95:846 96:444 97:251 98:873 99:35 101:65
103:55 106:1 107:11 108:83 109:973 110:600
111:708 112:302 113:399 114:540 115:686 116:970
117:686 118:794 119:1132 120:311 121:670 122:1625
123:947 124:1272 125:1220 128:262 129:178 130:164
131:576 132:111 133:19 134:212 135:48 136:214
137:144 138:301 139:123 140:483 141:239 142:407
143:418 144:498 145:54 146:446 147:225 148:605
149:247 150:174 151:187 152:330 153:180 154:3
155:397 156:198 157:353 158:138 159:380 160:318
161:207 162:300 163:165 164:500 165:371 166:523
167:424 168:727 169:156 170:804 171:77 172:1
173:1614 174:587 175:371 176:133 177:151 178:998
180:854 181:18 182:462 183:213 184:376 185:1
186:1207 187:796 188:865 189:901 190:4894 192:5875
193:4938 194:3557 195:3127 196:1243 197:19 198:3596
199:3927 200:5495 201:1482 202:8307 203:8326 204:4195
205:2335 206:2764 207:2847 208:3963 209:3481 210:2721
211:1400 212:2064 213:1772 214:741 215:71 216:4956
217:1640 218:550 219:363 220:1207 221:492 222:317
223:154
End of report
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