Routing Table Report 04:00 +10GMT Mon 18 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 363652
Prefixes after maximum aggregation: 165333
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180592
Total ASes present in the Internet Routing Table: 38184
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31742
Origin ASes announcing only one prefix: 15260
Transit ASes present in the Internet Routing Table: 5184
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 922
Unregistered ASNs in the Routing Table: 537
Number of 32-bit ASNs allocated by the RIRs: 1564
Number of 32-bit ASNs visible in the Routing Table: 1258
Prefixes from 32-bit ASNs in the Routing Table: 2899
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2477935392
Equivalent to 147 /8s, 178 /16s and 75 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 151647
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90705
Total APNIC prefixes after maximum aggregation: 30300
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 87303
Unique aggregates announced from the APNIC address blocks: 37421
APNIC Region origin ASes present in the Internet Routing Table: 4518
APNIC Prefixes per ASN: 19.32
APNIC Region origin ASes announcing only one prefix: 1257
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: 61
Number of APNIC addresses announced to Internet: 622103104
Equivalent to 37 /8s, 20 /16s and 138 /24s
Percentage of available APNIC address space announced: 78.9
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: 141477
Total ARIN prefixes after maximum aggregation: 73074
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113409
Unique aggregates announced from the ARIN address blocks: 46689
ARIN Region origin ASes present in the Internet Routing Table: 14483
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5538
ARIN Region transit ASes present in the Internet Routing Table: 1526
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802464384
Equivalent to 47 /8s, 212 /16s and 162 /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: 86533
Total RIPE prefixes after maximum aggregation: 49183
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79874
Unique aggregates announced from the RIPE address blocks: 52875
RIPE Region origin ASes present in the Internet Routing Table: 15792
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7876
RIPE Region transit ASes present in the Internet Routing Table: 2496
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: 918
Number of RIPE addresses announced to Internet: 479484480
Equivalent to 28 /8s, 148 /16s and 90 /24s
Percentage of available RIPE address space announced: 77.2
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: 33680
Total LACNIC prefixes after maximum aggregation: 7610
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32780
Unique aggregates announced from the LACNIC address blocks: 17050
LACNIC Region origin ASes present in the Internet Routing Table: 1482
LACNIC Prefixes per ASN: 22.12
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 272
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 262
Number of LACNIC addresses announced to Internet: 86062336
Equivalent to 5 /8s, 33 /16s and 53 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8178
Total AfriNIC prefixes after maximum aggregation: 1965
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6491
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 469
AfriNIC Prefixes per ASN: 13.84
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24386304
Equivalent to 1 /8s, 116 /16s and 27 /24s
Percentage of available AfriNIC address space announced: 36.3
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 2469 11044 937 Korea Telecom (KIX)
7545 1554 301 85 TPG Internet Pty Ltd
17974 1532 455 46 PT TELEKOMUNIKASI INDONESIA
4755 1505 635 170 TATA Communications formerly
7552 1287 1064 7 Vietel Corporation
24560 1155 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 BSNL National Internet Backbo
9583 1064 78 504 Sify Limited
4808 1047 2092 299 CNCGROUP IP network: China169
17488 966 187 106 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 3599 3818 241 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1807 681 121 PaeTec Communications, Inc.
4323 1657 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
19262 1410 4744 390 Verizon Global Networks
7018 1365 7069 892 AT&T WorldNet Services
22773 1351 2897 88 Cox Communications, Inc.
7029 1292 791 305 Windstream Communications Inc
2386 1259 520 907 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 535 106 184 BILISIM TELEKOM
6830 510 1780 315 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 458 131 354 Akamai Technologies European
12479 457 593 7 Uni2 Autonomous System
8866 448 133 24 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 398 1803 311 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 1557 286 164 TVCABLE BOGOTA
8151 1436 2746 353 UniNet S.A. de C.V.
28573 1273 993 85 NET Servicos de Comunicao S.A
7303 1009 512 177 Telecom Argentina Stet-France
6503 748 354 74 AVANTEL, S.A.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 530 230 95 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 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 793 147 36 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 513 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 148 441 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 3599 3818 241 bellsouth.net, inc.
23456 2899 703 1557 32-bit ASN transition
4766 2469 11044 937 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1807 681 121 PaeTec Communications, Inc.
4323 1657 1082 400 Time Warner Telecom
20115 1594 1534 627 Charter Communications
10620 1557 286 164 TVCABLE BOGOTA
7545 1554 301 85 TPG Internet Pty Ltd
17974 1532 455 46 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1807 1686 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2469 1532 Korea Telecom (KIX)
17974 1532 1486 PT TELEKOMUNIKASI INDONESIA
7545 1554 1469 TPG Internet Pty Ltd
10620 1557 1393 TVCABLE BOGOTA
23456 2899 1342 32-bit ASN transition
4755 1505 1335 TATA Communications formerly
7552 1287 1280 Vietel Corporation
22773 1351 1263 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 /10:26 /11:80 /12:232
/13:464 /14:795 /15:1396 /16:12013 /17:5880 /18:9820
/19:19492 /20:26061 /21:26209 /22:34866 /23:33652 /24:189327
/25:1086 /26:1267 /27:735 /28:202 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3599 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1452 1557 TVCABLE BOGOTA
23456 1418 2899 32-bit ASN transition
11492 1095 1141 Cable One
6478 1056 1085 AT&T Worldnet Services
7011 1056 1158 Citizens Utilities
1785 1054 1807 PaeTec Communications, Inc.
7029 1039 1292 Windstream Communications Inc
22773 865 1351 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:330 2:46 4:16 5:1 6:3 8:338
12:1966 13:1 14:486 15:15 16:3 17:5
20:10 23:14 24:1679 27:826 31:502 32:64
33:4 34:2 36:4 38:746 40:104 41:2563
42:32 44:3 46:1042 47:3 49:201 50:393
52:13 54:2 55:5 56:2 57:35 58:862
59:479 60:387 61:1121 62:1034 63:1930 64:3957
65:2298 66:3890 67:1872 68:1103 69:3048 70:756
71:386 72:1887 74:2413 75:317 76:341 77:885
78:710 79:456 80:1114 81:838 82:500 83:454
84:691 85:1062 86:519 87:765 88:336 89:1529
90:224 91:3961 92:522 93:1044 94:1338 95:857
96:415 97:261 98:890 99:37 101:77 103:145
106:11 107:22 108:70 109:1019 110:608 111:709
112:305 113:407 114:552 115:684 116:979 117:688
118:830 119:1174 120:313 121:675 122:1608 123:977
124:1302 125:1275 128:242 129:171 130:169 131:574
132:111 133:21 134:212 135:48 136:216 137:137
138:297 139:116 140:480 141:244 142:403 143:415
144:481 145:55 146:451 147:215 148:672 149:248
150:160 151:189 152:342 153:182 154:4 155:397
156:199 157:352 158:138 159:454 160:314 161:202
162:310 163:159 164:499 165:367 166:529 167:433
168:736 169:153 170:848 171:78 172:1 173:1600
174:610 175:379 176:142 177:173 178:1003 180:898
181:23 182:491 183:231 184:346 185:1 186:1282
187:736 188:891 189:946 190:4997 192:5903 193:4973
194:3524 195:3028 196:1238 197:43 198:3576 199:3970
200:5556 201:1492 202:8403 203:8442 204:4221 205:2328
206:2673 207:2806 208:3981 209:3451 210:2689 211:1452
212:2102 213:1732 214:759 215:68 216:4941 217:1653
218:543 219:351 220:1232 221:493 222:337 223:216
End of report
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