Routing Table Report 04:00 +10GMT Wed 28 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 375084
Prefixes after maximum aggregation: 168478
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 180328
Total ASes present in the Internet Routing Table: 38913
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 32229
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5241
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: 35
Max AS path prepend of ASN (23456) 31
Prefixes from unregistered ASNs in the Routing Table: 1416
Unregistered ASNs in the Routing Table: 790
Number of 32-bit ASNs allocated by the RIRs: 1774
Number of 32-bit ASNs visible in the Routing Table: 1443
Prefixes from 32-bit ASNs in the Routing Table: 3301
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2481762560
Equivalent to 147 /8s, 236 /16s and 177 /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: 91.4
Total number of prefixes smaller than registry allocations: 157020
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94194
Total APNIC prefixes after maximum aggregation: 30788
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90703
Unique aggregates announced from the APNIC address blocks: 38084
APNIC Region origin ASes present in the Internet Routing Table: 4574
APNIC Prefixes per ASN: 19.83
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 721
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 628266848
Equivalent to 37 /8s, 114 /16s and 151 /24s
Percentage of available APNIC address space announced: 79.7
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: 144301
Total ARIN prefixes after maximum aggregation: 73884
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116485
Unique aggregates announced from the ARIN address blocks: 43193
ARIN Region origin ASes present in the Internet Routing Table: 14692
ARIN Prefixes per ASN: 7.93
ARIN Region origin ASes announcing only one prefix: 5656
ARIN Region transit ASes present in the Internet Routing Table: 1563
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 806131968
Equivalent to 48 /8s, 12 /16s and 153 /24s
Percentage of available ARIN address space announced: 64.1
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: 89631
Total RIPE prefixes after maximum aggregation: 50344
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82343
Unique aggregates announced from the RIPE address blocks: 54070
RIPE Region origin ASes present in the Internet Routing Table: 15998
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7967
RIPE Region transit ASes present in the Internet Routing Table: 2506
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: 1025
Number of RIPE addresses announced to Internet: 489849984
Equivalent to 29 /8s, 50 /16s and 132 /24s
Percentage of available RIPE address space announced: 78.9
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: 34961
Total LACNIC prefixes after maximum aggregation: 7788
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34262
Unique aggregates announced from the LACNIC address blocks: 17930
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 313
Number of LACNIC addresses announced to Internet: 89350016
Equivalent to 5 /8s, 83 /16s and 95 /24s
Percentage of available LACNIC address space announced: 59.2
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: 8528
Total AfriNIC prefixes after maximum aggregation: 2006
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6600
Unique aggregates announced from the AfriNIC address blocks: 2004
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27354624
Equivalent to 1 /8s, 161 /16s and 102 /24s
Percentage of available AfriNIC address space announced: 40.8
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 2503 11048 956 Korea Telecom (KIX)
17974 2008 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1607 303 86 TPG Internet Pty Ltd
4755 1541 638 173 TATA Communications formerly
7552 1392 1064 7 Vietel Corporation
24560 1181 337 193 Bharti Airtel Ltd., Telemedia
9829 1159 989 28 BSNL National Internet Backbo
9583 1086 80 502 Sify Limited
4808 1073 2097 304 CNCGROUP IP network: China169
18101 951 118 141 Reliance Infocom Ltd Internet
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 3561 3817 229 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1713 1008 194 Windstream Communications Inc
4323 1623 1082 391 Time Warner Telecom
20115 1595 1543 636 Charter Communications
22773 1459 2907 99 Cox Communications, Inc.
30036 1413 263 674 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1336 7050 867 AT&T WorldNet Services
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
8402 1074 352 13 Corbina telecom
34984 572 108 182 BILISIM TELEKOM
6830 533 1813 325 UPC Distribution Services
20940 531 178 409 Akamai Technologies European
3320 501 8169 383 Deutsche Telekom AG
3292 479 2082 408 TDC Tele Danmark
12479 475 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
8551 403 354 44 Bezeq International
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 1682 310 155 TVCABLE BOGOTA
8151 1422 2817 353 UniNet S.A. de C.V.
28573 1375 1013 70 NET Servicos de Comunicao S.A
7303 1163 682 174 Telecom Argentina Stet-France
14420 736 58 88 CORPORACION NACIONAL DE TELEC
22047 580 322 17 VTR PUNTO NET S.A.
6503 578 450 69 AVANTEL, S.A.
27947 572 55 81 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 519 86 93 Servicios Alestra S.A de C.V
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 811 147 43 LINKdotNET AS number
8452 711 445 11 TEDATA
15475 450 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
29571 192 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 3561 3817 229 bellsouth.net, inc.
23456 3301 784 1791 32-bit ASN transition
4766 2503 11048 956 Korea Telecom (KIX)
17974 2008 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1713 1008 194 Windstream Communications Inc
10620 1682 310 155 TVCABLE BOGOTA
4323 1623 1082 391 Time Warner Telecom
7545 1607 303 86 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 2008 1975 PT TELEKOMUNIKASI INDONESIA
1785 1826 1703 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
4766 2503 1547 Korea Telecom (KIX)
10620 1682 1527 TVCABLE BOGOTA
7545 1607 1521 TPG Internet Pty Ltd
7029 1713 1519 Windstream Communications Inc
23456 3301 1510 32-bit ASN transition
7552 1392 1385 Vietel Corporation
4755 1541 1368 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 /8:21 /9:12 /10:27 /11:81 /12:235
/13:464 /14:801 /15:1419 /16:11991 /17:5989 /18:10032
/19:19867 /20:27096 /21:27142 /22:36858 /23:35078 /24:194464
/25:1156 /26:1416 /27:756 /28:170 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3561 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1577 1682 TVCABLE BOGOTA
23456 1572 3301 32-bit ASN transition
7029 1410 1713 Windstream Communications Inc
30036 1370 1413 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1060 1185 Citizens Utilities
1785 1053 1826 PaeTec Communications, Inc.
8402 1021 1074 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:382 2:319 4:15 5:1 6:3 8:353
12:1960 13:1 14:532 15:13 16:3 17:8
20:9 23:35 24:1684 27:942 31:550 32:64
33:4 34:2 36:4 38:745 40:108 41:2590
42:49 44:3 46:987 47:3 49:262 50:427
52:13 54:2 55:4 56:2 57:37 58:878
59:493 60:364 61:1177 62:1090 63:1939 64:4053
65:2303 66:3973 67:1958 68:1118 69:3186 70:816
71:377 72:1855 74:2477 75:376 76:341 77:872
78:814 79:482 80:1129 81:849 82:501 83:552
84:621 85:1089 86:410 87:879 88:351 89:1596
90:268 91:4127 92:530 93:1302 94:1290 95:924
96:436 97:276 98:908 99:37 101:208 103:325
106:70 107:53 108:77 109:1034 110:667 111:789
112:323 113:447 114:568 115:697 116:881 117:706
118:891 119:1208 120:335 121:682 122:1609 123:1008
124:1342 125:1394 128:244 129:179 130:165 131:583
132:125 133:21 134:214 135:54 136:213 137:139
138:288 139:120 140:491 141:225 142:387 143:415
144:488 145:60 146:472 147:215 148:640 149:261
150:153 151:193 152:446 153:177 154:6 155:388
156:207 157:361 158:145 159:463 160:324 161:204
162:340 163:177 164:508 165:373 166:536 167:432
168:747 169:147 170:856 171:83 172:1 173:1644
174:652 175:401 176:215 177:286 178:1028 180:1087
181:37 182:626 183:223 184:367 185:1 186:1466
187:671 188:925 189:848 190:5141 192:5908 193:5017
194:3527 195:3071 196:1252 197:175 198:3597 199:4127
200:5518 201:1633 202:8558 203:8499 204:4255 205:2343
206:2676 207:2823 208:4040 209:3472 210:2705 211:1465
212:2088 213:1775 214:780 215:75 216:4898 217:1608
218:561 219:343 220:1229 221:509 222:343 223:263
End of report
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