Routing Table Report 04:00 +10GMT Tue 09 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 366780
Prefixes after maximum aggregation: 166000
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182056
Total ASes present in the Internet Routing Table: 38405
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 31878
Origin ASes announcing only one prefix: 15332
Transit ASes present in the Internet Routing Table: 5225
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1044
Unregistered ASNs in the Routing Table: 593
Number of 32-bit ASNs allocated by the RIRs: 1628
Number of 32-bit ASNs visible in the Routing Table: 1302
Prefixes from 32-bit ASNs in the Routing Table: 3019
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 115
Number of addresses announced to Internet: 2490353216
Equivalent to 148 /8s, 111 /16s and 198 /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: 153094
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91860
Total APNIC prefixes after maximum aggregation: 30239
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88333
Unique aggregates announced from the APNIC address blocks: 37668
APNIC Region origin ASes present in the Internet Routing Table: 4528
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 71
Number of APNIC addresses announced to Internet: 623322656
Equivalent to 37 /8s, 39 /16s and 38 /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: 142001
Total ARIN prefixes after maximum aggregation: 73231
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113838
Unique aggregates announced from the ARIN address blocks: 46932
ARIN Region origin ASes present in the Internet Routing Table: 14543
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5584
ARIN Region transit ASes present in the Internet Routing Table: 1543
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: 803366016
Equivalent to 47 /8s, 226 /16s and 100 /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: 87361
Total RIPE prefixes after maximum aggregation: 49585
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80610
Unique aggregates announced from the RIPE address blocks: 53321
RIPE Region origin ASes present in the Internet Routing Table: 15866
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7917
RIPE Region transit ASes present in the Internet Routing Table: 2505
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: 935
Number of RIPE addresses announced to Internet: 485163776
Equivalent to 28 /8s, 235 /16s and 3 /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: 34095
Total LACNIC prefixes after maximum aggregation: 7629
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33284
Unique aggregates announced from the LACNIC address blocks: 17306
LACNIC Region origin ASes present in the Internet Routing Table: 1494
LACNIC Prefixes per ASN: 22.28
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 281
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: 280
Number of LACNIC addresses announced to Internet: 87442688
Equivalent to 5 /8s, 54 /16s and 69 /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: 8280
Total AfriNIC prefixes after maximum aggregation: 1986
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6560
Unique aggregates announced from the AfriNIC address blocks: 2030
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.67
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26902784
Equivalent to 1 /8s, 154 /16s and 129 /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 2491 11045 947 Korea Telecom (KIX)
17974 1787 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 84 TPG Internet Pty Ltd
4755 1531 635 170 TATA Communications formerly
7552 1410 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1049 2090 297 CNCGROUP IP network: China169
17488 984 190 121 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 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1816 681 121 PaeTec Communications, Inc.
4323 1616 1082 400 Time Warner Telecom
7029 1605 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1358 7052 888 AT&T WorldNet Services
2386 1252 520 902 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 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
29049 434 32 52 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
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 1566 289 164 TVCABLE BOGOTA
8151 1426 2750 356 UniNet S.A. de C.V.
28573 1278 996 67 NET Servicos de Comunicao S.A
7303 1066 578 174 Telecom Argentina Stet-France
6503 769 450 76 AVANTEL, S.A.
14420 703 56 84 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 514 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
24863 805 147 42 LINKdotNET AS number
8452 773 445 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 234 32 6 Sudatel Internet Exchange Aut
33776 225 12 10 Starcomms Nigeria Limited
24835 176 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 3589 3817 231 bellsouth.net, inc.
23456 3019 729 1622 32-bit ASN transition
4766 2491 11045 947 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1816 681 121 PaeTec Communications, Inc.
17974 1787 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1082 400 Time Warner Telecom
7029 1605 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1566 289 164 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 1787 1756 PT TELEKOMUNIKASI INDONESIA
1785 1816 1695 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2491 1544 Korea Telecom (KIX)
7545 1559 1475 TPG Internet Pty Ltd
7552 1410 1403 Vietel Corporation
10620 1566 1402 TVCABLE BOGOTA
23456 3019 1397 32-bit ASN transition
7029 1605 1375 Windstream Communications Inc
4755 1531 1361 TATA Communications formerly
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 /12:233
/13:465 /14:800 /15:1415 /16:12053 /17:5909 /18:9919
/19:19551 /20:26474 /21:26467 /22:35139 /23:34123 /24:190761
/25:1097 /26:1285 /27:729 /28:204 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2217 3589 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1474 3019 32-bit ASN transition
10620 1461 1566 TVCABLE BOGOTA
7029 1305 1605 Windstream Communications Inc
11492 1095 1141 Cable One
7011 1058 1160 Citizens Utilities
1785 1054 1816 PaeTec Communications, Inc.
6478 934 963 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:351 2:46 4:15 5:1 6:3 8:338
12:1961 13:1 14:498 15:15 16:3 17:5
20:10 23:19 24:1681 27:861 31:520 32:64
33:4 34:2 36:4 38:727 40:106 41:2572
42:38 44:3 46:1073 47:3 49:201 50:388
52:13 54:2 55:4 56:2 57:35 58:858
59:494 60:378 61:1186 62:1054 63:1930 64:3995
65:2298 66:3912 67:1891 68:1094 69:3043 70:778
71:373 72:1864 74:2429 75:328 76:342 77:861
78:707 79:477 80:1123 81:844 82:504 83:464
84:684 85:1074 86:517 87:835 88:335 89:1532
90:224 91:4011 92:527 93:1115 94:1323 95:872
96:420 97:265 98:917 99:37 101:83 103:183
106:79 107:30 108:72 109:1043 110:618 111:728
112:309 113:407 114:557 115:690 116:996 117:686
118:865 119:1179 120:210 121:684 122:1611 123:982
124:1377 125:1330 128:246 129:172 130:170 131:580
132:104 133:21 134:213 135:52 136:215 137:139
138:296 139:115 140:486 141:270 142:380 143:419
144:489 145:58 146:456 147:216 148:680 149:252
150:161 151:190 152:351 153:182 154:5 155:400
156:199 157:354 158:138 159:458 160:318 161:206
162:310 163:162 164:515 165:365 166:531 167:432
168:747 169:153 170:842 171:81 172:1 173:1628
174:619 175:393 176:161 177:201 178:1007 180:922
181:26 182:510 183:237 184:363 185:1 186:1355
187:741 188:906 189:971 190:5109 192:5916 193:4980
194:3512 195:3059 196:1194 197:112 198:3591 199:4014
200:5545 201:1481 202:8426 203:8470 204:4258 205:2315
206:2670 207:2801 208:4008 209:3412 210:2689 211:1411
212:2087 213:1758 214:792 215:70 216:4895 217:1623
218:531 219:348 220:1231 221:485 222:362 223:232
End of report
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