Routing Table Report 04:00 +10GMT Wed 27 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 364805
Prefixes after maximum aggregation: 165831
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181081
Total ASes present in the Internet Routing Table: 38288
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 31814
Origin ASes announcing only one prefix: 15308
Transit ASes present in the Internet Routing Table: 5206
Transit-only ASes present in the Internet Routing Table: 140
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: 978
Unregistered ASNs in the Routing Table: 560
Number of 32-bit ASNs allocated by the RIRs: 1592
Number of 32-bit ASNs visible in the Routing Table: 1268
Prefixes from 32-bit ASNs in the Routing Table: 2924
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2486790720
Equivalent to 148 /8s, 57 /16s and 106 /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: 91.1
Total number of prefixes smaller than registry allocations: 152032
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91336
Total APNIC prefixes after maximum aggregation: 30384
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87911
Unique aggregates announced from the APNIC address blocks: 37495
APNIC Region origin ASes present in the Internet Routing Table: 4522
APNIC Prefixes per ASN: 19.44
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 713
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: 622385696
Equivalent to 37 /8s, 24 /16s and 218 /24s
Percentage of available APNIC address space announced: 78.9
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: 141807
Total ARIN prefixes after maximum aggregation: 73227
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113647
Unique aggregates announced from the ARIN address blocks: 46699
ARIN Region origin ASes present in the Internet Routing Table: 14525
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5571
ARIN Region transit ASes present in the Internet Routing Table: 1532
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: 803108224
Equivalent to 47 /8s, 222 /16s and 117 /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: 86588
Total RIPE prefixes after maximum aggregation: 49375
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 79944
Unique aggregates announced from the RIPE address blocks: 52942
RIPE Region origin ASes present in the Internet Routing Table: 15821
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7892
RIPE Region transit ASes present in the Internet Routing Table: 2513
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: 919
Number of RIPE addresses announced to Internet: 484220800
Equivalent to 28 /8s, 220 /16s and 159 /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: 33797
Total LACNIC prefixes after maximum aggregation: 7653
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32948
Unique aggregates announced from the LACNIC address blocks: 17190
LACNIC Region origin ASes present in the Internet Routing Table: 1488
LACNIC Prefixes per ASN: 22.14
LACNIC Region origin ASes announcing only one prefix: 440
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 271
Number of LACNIC addresses announced to Internet: 86941696
Equivalent to 5 /8s, 46 /16s and 160 /24s
Percentage of available LACNIC address space announced: 57.6
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: 8174
Total AfriNIC prefixes after maximum aggregation: 1965
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6466
Unique aggregates announced from the AfriNIC address blocks: 2046
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 25709312
Equivalent to 1 /8s, 136 /16s and 75 /24s
Percentage of available AfriNIC address space announced: 38.3
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 2483 11045 947 Korea Telecom (KIX)
17974 1788 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1556 301 85 TPG Internet Pty Ltd
4755 1504 631 170 TATA Communications formerly
7552 1318 1064 7 Vietel Corporation
24560 1162 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 936 41 BSNL National Internet Backbo
9583 1069 79 505 Sify Limited
4808 1049 2092 299 CNCGROUP IP network: China169
17488 968 189 109 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 237 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
4323 1616 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1411 4760 391 Verizon Global Networks
7018 1360 7068 888 AT&T WorldNet Services
22773 1354 2897 88 Cox Communications, Inc.
7029 1296 791 304 Windstream Communications Inc
2386 1257 520 907 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 533 106 186 BILISIM TELEKOM
6830 512 1788 316 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 465 133 357 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 425 8151 371 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 1561 287 164 TVCABLE BOGOTA
8151 1419 2746 351 UniNet S.A. de C.V.
28573 1283 995 78 NET Servicos de Comunicao S.A
7303 1032 545 174 Telecom Argentina Stet-France
6503 755 450 76 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 508 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 794 445 11 TEDATA
24863 787 147 36 LINKdotNET AS number
15475 510 74 8 Nile Online
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 259 415 15 Etisalat MISR
33776 226 13 5 Starcomms Nigeria Limited
15706 204 32 6 Sudatel Internet Exchange Aut
24835 177 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 237 bellsouth.net, inc.
23456 2924 706 1570 32-bit ASN transition
4766 2483 11045 947 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1810 681 121 PaeTec Communications, Inc.
17974 1788 508 32 PT TELEKOMUNIKASI INDONESIA
4323 1616 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1561 287 164 TVCABLE BOGOTA
7545 1556 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 1788 1756 PT TELEKOMUNIKASI INDONESIA
1785 1810 1689 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2483 1536 Korea Telecom (KIX)
7545 1556 1471 TPG Internet Pty Ltd
10620 1561 1397 TVCABLE BOGOTA
23456 2924 1354 32-bit ASN transition
4755 1504 1334 TATA Communications formerly
7552 1318 1311 Vietel Corporation
22773 1354 1266 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 /14:799 /15:1405 /16:12058 /17:5882 /18:9833
/19:19522 /20:26232 /21:26291 /22:34966 /23:33880 /24:189811
/25:1081 /26:1261 /27:730 /28:201 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2238 3616 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1456 1561 TVCABLE BOGOTA
23456 1445 2924 32-bit ASN transition
11492 1096 1142 Cable One
7011 1056 1158 Citizens Utilities
1785 1053 1810 PaeTec Communications, Inc.
7029 1043 1296 Windstream Communications Inc
6478 962 989 AT&T Worldnet Services
22773 868 1354 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:339 2:46 4:16 5:1 6:3 8:337
12:1963 13:1 14:491 15:15 16:3 17:5
20:10 23:17 24:1679 27:840 31:495 32:64
33:4 34:2 36:4 38:729 40:104 41:2601
42:35 44:3 46:1050 47:3 49:200 50:383
52:13 54:2 55:6 56:2 57:34 58:863
59:472 60:385 61:1184 62:1039 63:1929 64:3993
65:2300 66:3896 67:1883 68:1112 69:3051 70:771
71:373 72:1869 74:2426 75:321 76:342 77:862
78:703 79:468 80:1114 81:838 82:499 83:466
84:690 85:1064 86:518 87:764 88:335 89:1533
90:224 91:3950 92:526 93:1062 94:1340 95:868
96:420 97:263 98:889 99:37 101:81 103:160
106:77 107:25 108:73 109:1029 110:610 111:715
112:305 113:404 114:558 115:681 116:986 117:682
118:867 119:1177 120:315 121:677 122:1605 123:970
124:1311 125:1275 128:246 129:169 130:170 131:578
132:112 133:21 134:214 135:52 136:215 137:139
138:300 139:115 140:480 141:254 142:403 143:419
144:477 145:55 146:453 147:218 148:674 149:249
150:161 151:189 152:340 153:182 154:5 155:399
156:198 157:354 158:140 159:455 160:315 161:205
162:310 163:167 164:506 165:367 166:531 167:433
168:745 169:153 170:836 171:81 172:1 173:1618
174:619 175:383 176:143 177:169 178:997 180:908
181:24 182:514 183:234 184:344 185:1 186:1300
187:760 188:893 189:950 190:5010 192:5910 193:4976
194:3515 195:3019 196:1213 197:42 198:3584 199:3979
200:5555 201:1478 202:8400 203:8454 204:4236 205:2331
206:2667 207:2800 208:3991 209:3437 210:2680 211:1455
212:2024 213:1739 214:786 215:69 216:4950 217:1632
218:549 219:347 220:1231 221:497 222:359 223:228
End of report
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