Routing Table Report 04:00 +10GMT Wed 10 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 366602
Prefixes after maximum aggregation: 166108
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 181966
Total ASes present in the Internet Routing Table: 38419
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31889
Origin ASes announcing only one prefix: 15345
Transit ASes present in the Internet Routing Table: 5224
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: 1053
Unregistered ASNs in the Routing Table: 599
Number of 32-bit ASNs allocated by the RIRs: 1632
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: 0
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2490436416
Equivalent to 148 /8s, 113 /16s and 11 /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: 152893
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91898
Total APNIC prefixes after maximum aggregation: 30273
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88378
Unique aggregates announced from the APNIC address blocks: 37648
APNIC Region origin ASes present in the Internet Routing Table: 4531
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1246
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: 623318048
Equivalent to 37 /8s, 39 /16s and 20 /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: 142035
Total ARIN prefixes after maximum aggregation: 73284
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113837
Unique aggregates announced from the ARIN address blocks: 46926
ARIN Region origin ASes present in the Internet Routing Table: 14552
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5591
ARIN Region transit ASes present in the Internet Routing Table: 1541
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: 803331968
Equivalent to 47 /8s, 225 /16s and 223 /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: 87254
Total RIPE prefixes after maximum aggregation: 49603
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80534
Unique aggregates announced from the RIPE address blocks: 53286
RIPE Region origin ASes present in the Internet Routing Table: 15869
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7916
RIPE Region transit ASes present in the Internet Routing Table: 2508
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: 938
Number of RIPE addresses announced to Internet: 485117184
Equivalent to 28 /8s, 234 /16s and 77 /24s
Percentage of available RIPE address space announced: 78.1
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: 34016
Total LACNIC prefixes after maximum aggregation: 7616
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33226
Unique aggregates announced from the LACNIC address blocks: 17256
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.28
LACNIC Region origin ASes announcing only one prefix: 441
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: 281
Number of LACNIC addresses announced to Internet: 87450368
Equivalent to 5 /8s, 54 /16s and 99 /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: 8200
Total AfriNIC prefixes after maximum aggregation: 1988
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6464
Unique aggregates announced from the AfriNIC address blocks: 2035
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.44
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: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26904320
Equivalent to 1 /8s, 154 /16s and 135 /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 1788 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1560 301 85 TPG Internet Pty Ltd
4755 1530 635 170 TATA Communications formerly
7552 1404 1064 7 Vietel Corporation
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 BSNL National Internet Backbo
9583 1070 78 490 Sify Limited
4808 1057 2098 301 CNCGROUP IP network: China169
17488 990 191 124 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 1614 1082 399 Time Warner Telecom
7029 1609 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1409 4788 395 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1360 7052 890 AT&T WorldNet Services
2386 1251 520 901 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 537 107 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
20940 470 134 363 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
12479 455 593 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 1422 2750 352 UniNet S.A. de C.V.
28573 1270 996 67 NET Servicos de Comunicao S.A
7303 1066 578 174 Telecom Argentina Stet-France
6503 766 450 77 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 516 53 54 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 806 147 43 LINKdotNET AS number
8452 669 445 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 237 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 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 3034 729 1629 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 1788 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1614 1082 399 Time Warner Telecom
7029 1609 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 1788 1757 PT TELEKOMUNIKASI INDONESIA
1785 1816 1695 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2491 1544 Korea Telecom (KIX)
7545 1560 1475 TPG Internet Pty Ltd
23456 3034 1405 32-bit ASN transition
10620 1566 1402 TVCABLE BOGOTA
7552 1404 1397 Vietel Corporation
7029 1609 1379 Windstream Communications Inc
4755 1530 1360 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 /15:1416 /16:12051 /17:5902 /18:9918
/19:19556 /20:26475 /21:26434 /22:35159 /23:34102 /24:190632
/25:1093 /26:1280 /27:729 /28:202 /29:9 /30:1
/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 1477 3034 32-bit ASN transition
10620 1461 1566 TVCABLE BOGOTA
7029 1305 1609 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1058 1160 Citizens Utilities
1785 1054 1816 PaeTec Communications, Inc.
22773 904 1405 Cox Communications, Inc.
30036 895 919 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:352 2:46 4:15 5:1 6:3 8:338
12:1962 13:1 14:501 15:15 16:3 17:5
20:10 23:19 24:1684 27:862 31:520 32:64
33:4 34:2 36:4 38:728 40:106 41:2493
42:39 44:3 46:1072 47:3 49:201 50:391
52:13 54:2 55:3 56:2 57:35 58:859
59:494 60:379 61:1188 62:1040 63:1930 64:3996
65:2299 66:3915 67:1888 68:1094 69:3044 70:777
71:373 72:1866 74:2430 75:329 76:342 77:862
78:709 79:471 80:1106 81:826 82:502 83:464
84:684 85:1075 86:523 87:836 88:335 89:1531
90:224 91:4013 92:527 93:1115 94:1332 95:872
96:420 97:265 98:917 99:37 101:81 103:188
106:79 107:30 108:72 109:1011 110:619 111:727
112:308 113:407 114:556 115:690 116:994 117:685
118:864 119:1185 120:210 121:684 122:1612 123:982
124:1376 125:1331 128:246 129:172 130:170 131:578
132:105 133:21 134:212 135:52 136:215 137:139
138:296 139:115 140:487 141:270 142:380 143:419
144:490 145:58 146:456 147:216 148:679 149:254
150:161 151:190 152:351 153:182 154:5 155:400
156:199 157:354 158:139 159:458 160:318 161:208
162:310 163:163 164:515 165:365 166:531 167:434
168:748 169:153 170:843 171:81 172:1 173:1630
174:620 175:393 176:163 177:210 178:1010 180:923
181:24 182:512 183:236 184:363 185:1 186:1355
187:743 188:908 189:965 190:5093 192:5916 193:4973
194:3512 195:3060 196:1203 197:113 198:3594 199:4018
200:5520 201:1482 202:8421 203:8483 204:4259 205:2315
206:2666 207:2798 208:4000 209:3411 210:2690 211:1411
212:2087 213:1756 214:805 215:70 216:4886 217:1622
218:533 219:348 220:1230 221:485 222:362 223:233
End of report
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