Routing Table Report 04:00 +10GMT Mon 25 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 363747
Prefixes after maximum aggregation: 165619
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180860
Total ASes present in the Internet Routing Table: 38242
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31791
Origin ASes announcing only one prefix: 15301
Transit ASes present in the Internet Routing Table: 5189
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 967
Unregistered ASNs in the Routing Table: 548
Number of 32-bit ASNs allocated by the RIRs: 1590
Number of 32-bit ASNs visible in the Routing Table: 1262
Prefixes from 32-bit ASNs in the Routing Table: 2914
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2482642208
Equivalent to 147 /8s, 250 /16s and 29 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151504
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91056
Total APNIC prefixes after maximum aggregation: 30344
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 87640
Unique aggregates announced from the APNIC address blocks: 37437
APNIC Region origin ASes present in the Internet Routing Table: 4518
APNIC Prefixes per ASN: 19.40
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 62
Number of APNIC addresses announced to Internet: 620718112
Equivalent to 36 /8s, 255 /16s and 104 /24s
Percentage of available APNIC address space announced: 78.7
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: 141645
Total ARIN prefixes after maximum aggregation: 73172
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113608
Unique aggregates announced from the ARIN address blocks: 46686
ARIN Region origin ASes present in the Internet Routing Table: 14515
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5574
ARIN Region transit ASes present in the Internet Routing Table: 1526
Average ARIN Region AS path length visible: 4.0
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: 802766208
Equivalent to 47 /8s, 217 /16s and 61 /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: 86445
Total RIPE prefixes after maximum aggregation: 49318
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 79823
Unique aggregates announced from the RIPE address blocks: 52888
RIPE Region origin ASes present in the Internet Routing Table: 15802
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7877
RIPE Region transit ASes present in the Internet Routing Table: 2504
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 916
Number of RIPE addresses announced to Internet: 484021376
Equivalent to 28 /8s, 217 /16s and 148 /24s
Percentage of available RIPE address space announced: 78.0
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: 33451
Total LACNIC prefixes after maximum aggregation: 7604
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32709
Unique aggregates announced from the LACNIC address blocks: 17152
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 268
Number of LACNIC addresses announced to Internet: 86421760
Equivalent to 5 /8s, 38 /16s and 177 /24s
Percentage of available LACNIC address space announced: 57.2
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: 8059
Total AfriNIC prefixes after maximum aggregation: 1966
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6377
Unique aggregates announced from the AfriNIC address blocks: 2017
AfriNIC Region origin ASes present in the Internet Routing Table: 471
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24400896
Equivalent to 1 /8s, 116 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 36.4
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 2476 11045 944 Korea Telecom (KIX)
17974 1786 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1555 301 85 TPG Internet Pty Ltd
4755 1507 635 171 TATA Communications formerly
7552 1298 1064 7 Vietel Corporation
24560 1161 336 187 Bharti Airtel Ltd., Telemedia
9829 1119 936 41 BSNL National Internet Backbo
9583 1068 79 507 Sify Limited
4808 1048 2092 299 CNCGROUP IP network: China169
17488 970 189 110 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3616 3818 238 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1811 681 122 PaeTec Communications, Inc.
4323 1615 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1411 4760 391 Verizon Global Networks
7018 1357 7067 887 AT&T WorldNet Services
22773 1353 2897 89 Cox Communications, Inc.
7029 1293 791 304 Windstream Communications Inc
2386 1257 520 906 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
34984 534 106 185 BILISIM TELEKOM
6830 512 1788 316 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 459 132 354 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 397 1802 310 UUNET - Commercial IP service
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1559 287 163 TVCABLE BOGOTA
28573 1283 995 78 NET Servicos de Comunicao S.A
8151 1271 2746 352 UniNet S.A. de C.V.
7303 980 513 163 Telecom Argentina Stet-France
6503 750 354 73 AVANTEL, S.A.
14420 700 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 503 53 53 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 810 445 11 TEDATA
24863 659 145 35 LINKdotNET AS number
15475 510 74 8 Nile Online
36992 272 415 15 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
15706 204 32 6 Sudatel Internet Exchange Aut
24835 161 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3616 3818 238 bellsouth.net, inc.
23456 2914 706 1564 32-bit ASN transition
4766 2476 11045 944 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1811 681 122 PaeTec Communications, Inc.
17974 1786 508 32 PT TELEKOMUNIKASI INDONESIA
4323 1615 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1555 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1786 1754 PT TELEKOMUNIKASI INDONESIA
1785 1811 1689 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2476 1532 Korea Telecom (KIX)
7545 1555 1470 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2914 1350 32-bit ASN transition
4755 1507 1336 TATA Communications formerly
7552 1298 1291 Vietel Corporation
22773 1353 1264 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/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/current/data-badAS
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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/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 /12:232
/13:465 /14:796 /15:1393 /16:12033 /17:5865 /18:9811
/19:19497 /20:26157 /21:26226 /22:34847 /23:33779 /24:189404
/25:1080 /26:1264 /27:727 /28:15 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2236 3616 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1454 1559 TVCABLE BOGOTA
23456 1443 2914 32-bit ASN transition
11492 1096 1142 Cable One
7011 1056 1158 Citizens Utilities
1785 1054 1811 PaeTec Communications, Inc.
7029 1040 1293 Windstream Communications Inc
6478 997 1025 AT&T Worldnet Services
22773 868 1353 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:335 2:44 4:16 5:1 6:3 8:337
12:1964 13:1 14:489 15:15 16:3 17:5
20:10 23:14 24:1680 27:837 31:495 32:64
33:4 34:2 36:4 38:729 40:104 41:2631
42:35 44:3 46:1053 47:3 49:202 50:383
52:13 54:2 55:4 56:2 57:34 58:860
59:482 60:385 61:1179 62:1031 63:1930 64:3989
65:2298 66:3879 67:1884 68:1107 69:3055 70:769
71:373 72:1868 74:2424 75:323 76:341 77:856
78:699 79:454 80:1111 81:841 82:497 83:465
84:691 85:1067 86:519 87:764 88:328 89:1536
90:223 91:3951 92:523 93:1060 94:1335 95:865
96:420 97:263 98:893 99:37 101:81 103:146
106:76 107:25 108:73 109:1019 110:611 111:714
112:302 113:409 114:557 115:681 116:983 117:683
118:859 119:1179 120:315 121:674 122:1601 123:968
124:1307 125:1275 128:246 129:169 130:170 131:489
132:112 133:21 134:214 135:52 136:215 137:139
138:300 139:115 140:480 141:253 142:403 143:415
144:477 145:54 146:452 147:212 148:617 149:248
150:159 151:189 152:337 153:182 154:5 155:399
156:198 157:348 158:140 159:455 160:315 161:204
162:310 163:167 164:503 165:365 166:531 167:433
168:746 169:153 170:834 171:81 172:1 173:1614
174:624 175:381 176:143 177:170 178:1010 180:906
181:23 182:510 183:233 184:343 185:1 186:1308
187:744 188:892 189:949 190:4985 192:5913 193:4971
194:3515 195:3008 196:1213 197:42 198:3577 199:3982
200:5563 201:1475 202:8396 203:8443 204:4225 205:2333
206:2667 207:2796 208:3990 209:3438 210:2668 211:1453
212:2021 213:1738 214:756 215:69 216:4952 217:1654
218:546 219:323 220:1230 221:497 222:343 223:229
End of report
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