Routing Table Report 00:00 GMT Sun 07 Aug, 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: 369458
Prefixes after maximum aggregation: 166910
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 181995
Total ASes present in the Internet Routing Table: 38398
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31888
Origin ASes announcing only one prefix: 15338
Transit ASes present in the Internet Routing Table: 5204
Transit-only ASes present in the Internet Routing Table: 150
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4122
Unregistered ASNs in the Routing Table: 596
Number of 32-bit ASNs allocated by the RIRs: 1625
Number of 32-bit ASNs visible in the Routing Table: 1306
Prefixes from 32-bit ASNs in the Routing Table: 3034
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2490307583
Equivalent to 148 /8s, 111 /16s and 19 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 153569
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88844
Total APNIC prefixes after maximum aggregation: 29100
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 85434
Unique aggregates announced from the APNIC address blocks: 37608
APNIC Region origin ASes present in the Internet Routing Table: 4503
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 70
Number of APNIC addresses announced to Internet: 623092480
Equivalent to 37 /8s, 35 /16s and 163 /24s
Percentage of available APNIC address space announced: 79.0
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: 145271
Total ARIN prefixes after maximum aggregation: 75151
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116815
Unique aggregates announced from the ARIN address blocks: 46839
ARIN Region origin ASes present in the Internet Routing Table: 14553
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5578
ARIN Region transit ASes present in the Internet Routing Table: 1528
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803348760
Equivalent to 47 /8s, 226 /16s and 33 /24s
Percentage of available ARIN address space announced: 63.8
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: 89441
Total RIPE prefixes after maximum aggregation: 49712
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 81917
Unique aggregates announced from the RIPE address blocks: 53281
RIPE Region origin ASes present in the Internet Routing Table: 15863
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7902
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 940
Number of RIPE addresses announced to Internet: 485552076
Equivalent to 28 /8s, 240 /16s and 239 /24s
Percentage of available RIPE address space announced: 78.2
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: 34362
Total LACNIC prefixes after maximum aggregation: 7611
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 33571
Unique aggregates announced from the LACNIC address blocks: 17301
LACNIC Region origin ASes present in the Internet Routing Table: 1493
LACNIC Prefixes per ASN: 22.49
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 274
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 280
Number of LACNIC addresses announced to Internet: 87435264
Equivalent to 5 /8s, 54 /16s and 40 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8295
Total AfriNIC prefixes after maximum aggregation: 1994
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6574
Unique aggregates announced from the AfriNIC address blocks: 2026
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26871808
Equivalent to 1 /8s, 154 /16s and 8 /24s
Percentage of available AfriNIC address space announced: 40.0
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 1933 11070 648 Korea Telecom (KIX)
17974 1785 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 85 TPG Internet Pty Ltd
4755 1520 375 168 Videsh Sanchar Nigam Ltd. Aut
24560 1198 336 187 Bharti Airtel Ltd.
9829 1113 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1033 2111 294 CNCGROUP IP network: China169
7552 999 1062 11 Vietel Corporation
17488 995 188 123 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 3568 3817 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1816 681 122 AppliedTheory Corporation
7029 1634 1022 205 Windstream Communications Inc
4323 1615 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1367 7069 895 AT&T WorldNet Services
2386 1250 520 900 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 1032 797 189 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 521 2080 405 TDC Tele Danmark
6830 512 1788 316 UPC Distribution Services
20940 471 134 364 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 433 32 54 AzerSat LLC.
3320 424 8151 370 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 1566 289 164 TVCABLE BOGOTA
8151 1391 2748 355 Uninet S.A. de C.V.
28573 1266 996 67 Types of queries are: POCs, o
7303 1067 578 175 Telecom Argentina Stet-France
6503 765 434 76 AVANTEL, S.A.
14420 703 56 84 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 532 232 97 COLOMBIA TELECOMUNICACIONES S
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
24863 800 146 52 LINKdotNET AS number
8452 797 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 229 13 8 Starcomms Nigeria Limited
15706 227 32 6 Sudatel Internet Exchange Aut
24835 176 78 10 RAYA Telecom - Egypt
29571 159 17 12 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 3568 3817 231 bellsouth.net, inc.
23456 3034 728 1628 >>UNKNOWN<<
4766 1933 11070 648 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1816 681 122 AppliedTheory Corporation
17974 1785 516 31 PT TELEKOMUNIKASI INDONESIA
7029 1634 1022 205 Windstream Communications Inc
4323 1615 1098 400 Time Warner Telecom
20115 1591 1538 623 Charter Communications
10620 1566 289 164 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1785 1754 PT TELEKOMUNIKASI INDONESIA
1785 1816 1694 AppliedTheory Corporation
18566 1913 1673 Covad Communications
7545 1559 1474 TPG Internet Pty Ltd
7029 1634 1429 Windstream Communications Inc
23456 3034 1406 >>UNKNOWN<<
10620 1566 1402 TVCABLE BOGOTA
4755 1520 1352 Videsh Sanchar Nigam Ltd. Aut
22773 1405 1315 Cox Communications, Inc.
4766 1933 1285 Korea Telecom (KIX)
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 4323 Time Warner Telecom
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
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
31.192.96.0/21 44611 Talk Internet
31.209.136.0/21 51896 Hestaleit ehf
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 /9:12 /10:27 /11:80 /12:233
/13:465 /14:806 /15:1438 /16:12163 /17:6153 /18:10193
/19:20045 /20:27376 /21:26872 /22:35306 /23:34581 /24:192016
/25:87 /26:87 /27:112 /28:227 /29:67 /30:519
/31:88 /32:485
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2205 3568 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1496 3034 >>UNKNOWN<<
10620 1461 1566 TVCABLE BOGOTA
7029 1319 1634 Windstream Communications Inc
11492 1095 1141 Cable One
7011 1058 1160 Citizens Utilities
1785 1053 1816 AppliedTheory Corporation
6478 934 962 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:349 2:44 4:19 5:1 6:3 8:339
12:1963 13:1 14:499 15:15 16:3 17:5
20:10 23:19 24:1679 27:864 31:518 32:149
33:4 34:2 36:3 38:727 40:106 41:2596
42:37 44:3 46:1076 47:3 49:206 50:386
52:13 54:2 55:5 56:2 57:45 58:868
59:492 60:378 61:1174 62:1074 63:1951 64:4054
65:2296 66:3949 67:1924 68:1277 69:3152 70:820
71:372 72:1896 73:1 74:2479 75:340 76:350
77:862 78:706 79:478 80:1129 81:841 82:517
83:471 84:690 85:1084 86:534 87:842 88:338
89:1555 90:224 91:4010 92:528 93:1130 94:1336
95:870 96:424 97:265 98:930 99:37 100:1
101:83 103:186 106:79 107:30 108:80 109:1056
110:621 111:726 112:308 113:409 114:563 115:679
116:1008 117:665 118:864 119:1181 120:210 121:697
122:1614 123:981 124:1372 125:1290 128:247 129:175
130:171 131:580 132:102 133:21 134:215 135:52
136:215 137:135 138:296 139:128 140:482 141:271
142:383 143:432 144:473 145:58 146:456 147:225
148:680 149:252 150:156 151:190 152:347 153:182
154:5 155:400 156:199 157:356 158:139 159:458
160:319 161:206 162:310 163:161 164:515 165:396
166:533 167:433 168:745 169:154 170:834 171:81
172:1 173:1645 174:621 175:391 176:148 177:201
178:1017 180:808 181:26 182:480 183:237 184:361
185:1 186:1344 187:752 188:915 189:970 190:5092
192:5940 193:4993 194:3554 195:3139 196:1200 197:113
198:3596 199:4030 200:5538 201:1479 202:8323 203:8466
204:4263 205:2327 206:2737 207:2811 208:4124 209:3500
210:2712 211:1414 212:2138 213:1768 214:791 215:70
216:4949 217:1639 218:532 219:349 220:1210 221:486
222:361 223:239
End of report
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