Routing Table Report 04:00 +10GMT Fri 12 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 366914
Prefixes after maximum aggregation: 166408
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182139
Total ASes present in the Internet Routing Table: 38459
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31926
Origin ASes announcing only one prefix: 15346
Transit ASes present in the Internet Routing Table: 5218
Transit-only ASes present in the Internet Routing Table: 141
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: 1072
Unregistered ASNs in the Routing Table: 603
Number of 32-bit ASNs allocated by the RIRs: 1642
Number of 32-bit ASNs visible in the Routing Table: 1315
Prefixes from 32-bit ASNs in the Routing Table: 3029
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2493116224
Equivalent to 148 /8s, 153 /16s and 239 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 153212
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91747
Total APNIC prefixes after maximum aggregation: 30436
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 88228
Unique aggregates announced from the APNIC address blocks: 37660
APNIC Region origin ASes present in the Internet Routing Table: 4533
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 1249
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: 70
Number of APNIC addresses announced to Internet: 623625248
Equivalent to 37 /8s, 43 /16s and 196 /24s
Percentage of available APNIC address space announced: 79.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 142238
Total ARIN prefixes after maximum aggregation: 73322
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114041
Unique aggregates announced from the ARIN address blocks: 47035
ARIN Region origin ASes present in the Internet Routing Table: 14568
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5590
ARIN Region transit ASes present in the Internet Routing Table: 1540
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: 803605632
Equivalent to 47 /8s, 230 /16s and 12 /24s
Percentage of available ARIN address space announced: 63.9
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: 87260
Total RIPE prefixes after maximum aggregation: 49632
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80497
Unique aggregates announced from the RIPE address blocks: 53275
RIPE Region origin ASes present in the Internet Routing Table: 15871
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7910
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 945
Number of RIPE addresses announced to Internet: 487052544
Equivalent to 29 /8s, 7 /16s and 213 /24s
Percentage of available RIPE address space announced: 78.5
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: 34042
Total LACNIC prefixes after maximum aggregation: 7643
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33216
Unique aggregates announced from the LACNIC address blocks: 17294
LACNIC Region origin ASes present in the Internet Routing Table: 1498
LACNIC Prefixes per ASN: 22.17
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 284
Number of LACNIC addresses announced to Internet: 87430144
Equivalent to 5 /8s, 54 /16s and 20 /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: 8429
Total AfriNIC prefixes after maximum aggregation: 2025
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6580
Unique aggregates announced from the AfriNIC address blocks: 2031
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26906368
Equivalent to 1 /8s, 154 /16s and 143 /24s
Percentage of available AfriNIC address space announced: 40.1
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 2486 11044 946 Korea Telecom (KIX)
17974 1763 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1566 301 84 TPG Internet Pty Ltd
4755 1535 635 170 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 BSNL National Internet Backbo
9583 1070 78 490 Sify Limited
4808 1057 2098 301 CNCGROUP IP network: China169
7552 997 1062 11 Vietel Corporation
17488 987 186 126 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 3589 3817 227 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1813 681 124 PaeTec Communications, Inc.
4323 1615 1082 400 Time Warner Telecom
7029 1612 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
22773 1409 2903 93 Cox Communications, Inc.
19262 1404 4778 394 Verizon Global Networks
7018 1360 7052 891 AT&T WorldNet Services
2386 1248 519 898 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 538 107 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 454 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
3320 423 8135 369 Deutsche Telekom AG
29049 417 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 397 1855 346 TeliaNet Sweden
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 1574 290 165 TVCABLE BOGOTA
8151 1430 2755 353 UniNet S.A. de C.V.
28573 1259 996 67 NET Servicos de Comunicao S.A
7303 1068 578 175 Telecom Argentina Stet-France
6503 743 450 76 AVANTEL, S.A.
14420 703 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 530 232 96 Empresa Nacional de Telecomun
27947 516 53 54 Telconet S.A
7738 515 986 31 Telecomunicacoes da Bahia 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
24863 806 147 43 LINKdotNET AS number
8452 741 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 192 28 59 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
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 3589 3817 227 bellsouth.net, inc.
23456 3029 731 1632 32-bit ASN transition
4766 2486 11044 946 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1813 681 124 PaeTec Communications, Inc.
17974 1763 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1615 1082 400 Time Warner Telecom
7029 1612 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1574 290 165 TVCABLE BOGOTA
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 1763 1732 PT TELEKOMUNIKASI INDONESIA
1785 1813 1689 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2486 1540 Korea Telecom (KIX)
7545 1566 1482 TPG Internet Pty Ltd
10620 1574 1409 TVCABLE BOGOTA
23456 3029 1397 32-bit ASN transition
7029 1612 1382 Windstream Communications Inc
4755 1535 1365 TATA Communications formerly
22773 1409 1316 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 /11:81 /12:233
/13:465 /14:800 /15:1412 /16:12056 /17:5912 /18:9924
/19:19525 /20:26385 /21:26449 /22:35126 /23:34160 /24:190978
/25:1094 /26:1296 /27:736 /28:207 /29:9 /30:1
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2220 3589 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1469 1574 TVCABLE BOGOTA
23456 1469 3029 32-bit ASN transition
7029 1308 1612 Windstream Communications Inc
11492 1099 1145 Cable One
7011 1058 1160 Citizens Utilities
1785 1052 1813 PaeTec Communications, Inc.
22773 905 1409 Cox Communications, Inc.
30036 899 924 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:353 2:43 4:15 5:1 6:3 8:339
12:1962 13:1 14:509 15:15 16:3 17:5
20:10 23:19 24:1683 27:868 31:505 32:64
33:4 34:2 36:4 38:728 40:108 41:2557
42:43 44:3 46:1070 47:3 49:219 50:392
52:13 54:2 55:6 56:2 57:35 58:868
59:499 60:379 61:1188 62:1065 63:1935 64:4005
65:2299 66:3915 67:1909 68:1110 69:3090 70:779
71:373 72:1868 74:2427 75:329 76:342 77:863
78:707 79:472 80:1129 81:823 82:489 83:456
84:685 85:1077 86:523 87:837 88:335 89:1528
90:224 91:4023 92:526 93:1123 94:1325 95:866
96:417 97:266 98:916 99:36 101:79 103:187
106:79 107:30 108:71 109:1013 110:620 111:729
112:308 113:407 114:554 115:682 116:989 117:665
118:828 119:1192 120:315 121:688 122:1607 123:970
124:1371 125:1291 128:246 129:173 130:171 131:578
132:116 133:21 134:213 135:52 136:216 137:139
138:296 139:116 140:488 141:272 142:380 143:413
144:490 145:58 146:457 147:215 148:690 149:252
150:164 151:190 152:439 153:182 154:5 155:399
156:199 157:354 158:139 159:458 160:318 161:208
162:309 163:164 164:515 165:366 166:533 167:433
168:747 169:153 170:845 171:81 172:1 173:1645
174:621 175:393 176:163 177:208 178:1006 180:924
181:26 182:514 183:238 184:365 185:1 186:1360
187:737 188:908 189:926 190:5087 192:5919 193:4974
194:3507 195:3055 196:1197 197:122 198:3592 199:4028
200:5536 201:1478 202:8422 203:8465 204:4264 205:2309
206:2675 207:2794 208:4009 209:3414 210:2690 211:1459
212:2083 213:1759 214:806 215:70 216:4870 217:1594
218:557 219:354 220:1201 221:515 222:360 223:234
End of report
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