Routing Table Report 04:00 +10GMT Thu 09 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 358996
Prefixes after maximum aggregation: 162785
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178139
Total ASes present in the Internet Routing Table: 37832
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 31586
Origin ASes announcing only one prefix: 15178
Transit ASes present in the Internet Routing Table: 5110
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 770
Unregistered ASNs in the Routing Table: 412
Number of 32-bit ASNs allocated by the RIRs: 1436
Number of 32-bit ASNs visible in the Routing Table: 1136
Prefixes from 32-bit ASNs in the Routing Table: 2638
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 167
Number of addresses announced to Internet: 2470193472
Equivalent to 147 /8s, 60 /16s and 41 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 149776
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88903
Total APNIC prefixes after maximum aggregation: 30089
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 85366
Unique aggregates announced from the APNIC address blocks: 36644
APNIC Region origin ASes present in the Internet Routing Table: 4472
APNIC Prefixes per ASN: 19.09
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 619778080
Equivalent to 36 /8s, 241 /16s and 16 /24s
Percentage of available APNIC address space announced: 78.6
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: 140743
Total ARIN prefixes after maximum aggregation: 71687
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 112698
Unique aggregates announced from the ARIN address blocks: 46072
ARIN Region origin ASes present in the Internet Routing Table: 14427
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5510
ARIN Region transit ASes present in the Internet Routing Table: 1513
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818753280
Equivalent to 48 /8s, 205 /16s and 47 /24s
Percentage of available ARIN address space announced: 65.1
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: 85412
Total RIPE prefixes after maximum aggregation: 48623
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78860
Unique aggregates announced from the RIPE address blocks: 52095
RIPE Region origin ASes present in the Internet Routing Table: 15684
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7841
RIPE Region transit ASes present in the Internet Routing Table: 2467
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 837
Number of RIPE addresses announced to Internet: 476343424
Equivalent to 28 /8s, 100 /16s and 108 /24s
Percentage of available RIPE address space announced: 76.7
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: 33013
Total LACNIC prefixes after maximum aggregation: 7511
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32118
Unique aggregates announced from the LACNIC address blocks: 16967
LACNIC Region origin ASes present in the Internet Routing Table: 1465
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 235
Number of LACNIC addresses announced to Internet: 84821760
Equivalent to 5 /8s, 14 /16s and 71 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8061
Total AfriNIC prefixes after maximum aggregation: 1924
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6373
Unique aggregates announced from the AfriNIC address blocks: 1936
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 13.88
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 5
Number of AfriNIC addresses announced to Internet: 24121344
Equivalent to 1 /8s, 112 /16s and 16 /24s
Percentage of available AfriNIC address space announced: 35.9
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 2459 9500 922 Korea Telecom (KIX)
17974 1548 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 86 TPG Internet Pty Ltd
4755 1474 634 168 TATA Communications formerly
24560 1156 337 187 Bharti Airtel Ltd., Telemedia
7552 1142 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
4808 1052 2098 299 CNCGROUP IP network: China169
9829 1038 876 65 BSNL National Internet Backbo
17488 936 173 105 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 3636 3822 255 bellsouth.net, inc.
4323 1967 1081 401 Time Warner Telecom
18566 1875 355 269 Covad Communications
1785 1791 681 122 PaeTec Communications, Inc.
6478 1719 318 43 AT&T Worldnet Services
20115 1539 1541 633 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1364 7068 891 AT&T WorldNet Services
22773 1339 2897 88 Cox Communications, Inc.
2386 1269 536 912 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 520 106 180 BILISIM TELEKOM
6830 514 1780 321 UPC Distribution Services
3292 464 2078 399 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 Uni2 Autonomous System
3320 426 8152 371 Deutsche Telekom AG
8551 406 355 45 Bezeq International
702 396 1803 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 1512 278 157 TVCABLE BOGOTA
28573 1328 992 79 NET Servicos de Comunicao S.A
8151 1267 2726 364 UniNet S.A. de C.V.
7303 960 505 152 Telecom Argentina Stet-France
6503 738 354 73 AVANTEL, S.A.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 528 231 94 Empresa Nacional de Telecomun
13489 517 262 122 Orbitel S.A. E.S.P.
7738 516 986 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
8452 796 445 11 TEDATA
24863 795 147 37 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 306 415 17 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 86 MTN Network Solutions
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 3636 3822 255 bellsouth.net, inc.
23456 2638 649 1428 32-bit ASN transition
4766 2459 9500 922 Korea Telecom (KIX)
4323 1967 1081 401 Time Warner Telecom
18566 1875 355 269 Covad Communications
1785 1791 681 122 PaeTec Communications, Inc.
6478 1719 318 43 AT&T Worldnet Services
17974 1548 441 38 PT TELEKOMUNIKASI INDONESIA
20115 1539 1541 633 Charter Communications
7545 1538 301 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
6478 1719 1676 AT&T Worldnet Services
1785 1791 1669 PaeTec Communications, Inc.
18566 1875 1606 Covad Communications
4323 1967 1566 Time Warner Telecom
4766 2459 1537 Korea Telecom (KIX)
17974 1548 1510 PT TELEKOMUNIKASI INDONESIA
7545 1538 1452 TPG Internet Pty Ltd
10620 1512 1355 TVCABLE BOGOTA
4755 1474 1306 TATA Communications formerly
22773 1339 1251 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
27.0.128.0/17 7514 Media Exchange, Inc.
31.131.160.0/21 56897 >>UNKNOWN<<
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
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 /10:28 /11:80 /12:230
/13:463 /14:799 /15:1394 /16:11929 /17:5844 /18:9781
/19:19371 /20:25817 /21:26001 /22:34197 /23:33173 /24:186742
/25:1079 /26:1266 /27:710 /28:43 /29:8 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2239 3636 bellsouth.net, inc.
18566 1838 1875 Covad Communications
6478 1673 1719 AT&T Worldnet Services
10620 1402 1512 TVCABLE BOGOTA
23456 1310 2638 32-bit ASN transition
11492 1107 1153 Cable One
7011 1062 1161 Citizens Utilities
1785 1050 1791 PaeTec Communications, Inc.
4323 880 1967 Time Warner Telecom
22773 854 1339 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:281 2:48 4:16 5:1 6:3 8:338
12:1978 13:1 14:459 15:15 16:3 17:8
20:10 23:11 24:1612 27:772 31:426 32:60
33:4 34:2 37:1 38:739 40:102 41:2524
42:6 44:3 46:954 47:3 49:198 50:402
52:13 54:2 55:5 56:2 57:29 58:841
59:475 60:387 61:1121 62:1050 63:1936 64:3934
65:2252 66:4137 67:1866 68:1089 69:2995 70:706
71:369 72:1846 74:2354 75:309 76:341 77:882
78:704 79:460 80:1090 81:834 82:491 83:473
84:675 85:1075 86:581 87:746 88:331 89:1528
90:205 91:3808 92:527 93:1037 94:1285 95:825
96:443 97:251 98:865 99:35 101:65 103:55
106:1 107:11 108:83 109:973 110:600 111:710
112:303 113:399 114:537 115:685 116:954 117:686
118:795 119:1139 120:312 121:669 122:1624 123:946
124:1272 125:1221 128:261 129:173 130:162 131:576
132:111 133:19 134:211 135:48 136:214 137:144
138:300 139:111 140:481 141:239 142:404 143:415
144:499 145:54 146:445 147:214 148:605 149:247
150:175 151:187 152:330 153:180 154:3 155:397
156:198 157:352 158:138 159:380 160:318 161:207
162:300 163:165 164:500 165:353 166:524 167:424
168:730 169:155 170:804 171:77 172:1 173:1596
174:584 175:371 176:133 177:143 178:994 180:855
181:18 182:461 183:213 184:295 185:1 186:1207
187:793 188:842 189:900 190:4887 192:5844 193:4916
194:3496 195:2995 196:1232 197:19 198:3582 199:3921
200:5479 201:1479 202:8301 203:8334 204:4185 205:2339
206:2687 207:2840 208:3952 209:3470 210:2717 211:1399
212:2010 213:1730 214:742 215:72 216:4937 217:1633
218:547 219:364 220:1204 221:491 222:317 223:154
End of report
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