Routing Table Report 04:00 +10GMT Thu 29 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 374636
Prefixes after maximum aggregation: 168409
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185149
Total ASes present in the Internet Routing Table: 38916
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 32242
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5226
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: 35
Max AS path prepend of ASN (23456) 31
Prefixes from unregistered ASNs in the Routing Table: 1453
Unregistered ASNs in the Routing Table: 793
Number of 32-bit ASNs allocated by the RIRs: 1786
Number of 32-bit ASNs visible in the Routing Table: 1448
Prefixes from 32-bit ASNs in the Routing Table: 3304
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2479546880
Equivalent to 147 /8s, 202 /16s and 226 /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: 91.4
Total number of prefixes smaller than registry allocations: 156401
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94455
Total APNIC prefixes after maximum aggregation: 30750
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 90914
Unique aggregates announced from the APNIC address blocks: 38122
APNIC Region origin ASes present in the Internet Routing Table: 4571
APNIC Prefixes per ASN: 19.89
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 627210592
Equivalent to 37 /8s, 98 /16s and 121 /24s
Percentage of available APNIC address space announced: 79.5
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: 143868
Total ARIN prefixes after maximum aggregation: 73885
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116061
Unique aggregates announced from the ARIN address blocks: 48031
ARIN Region origin ASes present in the Internet Routing Table: 14686
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5648
ARIN Region transit ASes present in the Internet Routing Table: 1557
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: 805081088
Equivalent to 47 /8s, 252 /16s and 144 /24s
Percentage of available ARIN address space announced: 64.0
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: 89485
Total RIPE prefixes after maximum aggregation: 50355
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82192
Unique aggregates announced from the RIPE address blocks: 54097
RIPE Region origin ASes present in the Internet Routing Table: 16009
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2516
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: 1029
Number of RIPE addresses announced to Internet: 489779584
Equivalent to 29 /8s, 49 /16s and 113 /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: 34784
Total LACNIC prefixes after maximum aggregation: 7755
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34109
Unique aggregates announced from the LACNIC address blocks: 17879
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.34
LACNIC Region origin ASes announcing only one prefix: 447
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: 314
Number of LACNIC addresses announced to Internet: 89289600
Equivalent to 5 /8s, 82 /16s and 115 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8571
Total AfriNIC prefixes after maximum aggregation: 1996
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6633
Unique aggregates announced from the AfriNIC address blocks: 1957
AfriNIC Region origin ASes present in the Internet Routing Table: 489
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 155
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: 27355136
Equivalent to 1 /8s, 161 /16s and 104 /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 2504 11048 957 Korea Telecom (KIX)
17974 2017 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1605 303 86 TPG Internet Pty Ltd
4755 1545 638 176 TATA Communications formerly
7552 1392 1064 7 Vietel Corporation
24560 1183 346 189 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1086 80 502 Sify Limited
4808 1072 2096 303 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 226 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1828 680 123 PaeTec Communications, Inc.
7029 1713 1008 194 Windstream Communications Inc
4323 1624 1082 391 Time Warner Telecom
20115 1596 1543 636 Charter Communications
22773 1460 2907 99 Cox Communications, Inc.
30036 1406 261 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1339 7050 870 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 1081 352 13 Corbina telecom
34984 575 108 179 BILISIM TELEKOM
6830 532 1813 324 UPC Distribution Services
20940 530 178 408 Akamai Technologies European
3320 501 8169 383 Deutsche Telekom AG
3292 479 2082 408 TDC Tele Danmark
12479 475 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 56 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 1681 310 155 TVCABLE BOGOTA
28573 1367 1013 70 NET Servicos de Comunicao S.A
8151 1276 2798 344 UniNet S.A. de C.V.
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 579 450 70 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 813 147 37 LINKdotNET AS number
8452 689 445 11 TEDATA
15475 450 74 8 Nile Online
36992 292 415 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 226 bellsouth.net, inc.
4766 2504 11048 957 Korea Telecom (KIX)
17974 2017 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
1785 1828 680 123 PaeTec Communications, Inc.
7029 1713 1008 194 Windstream Communications Inc
10620 1681 310 155 TVCABLE BOGOTA
4323 1624 1082 391 Time Warner Telecom
7545 1605 303 86 TPG Internet Pty Ltd
20115 1596 1543 636 Charter Communications
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 2017 1984 PT TELEKOMUNIKASI INDONESIA
1785 1828 1705 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
4766 2504 1547 Korea Telecom (KIX)
10620 1681 1526 TVCABLE BOGOTA
7029 1713 1519 Windstream Communications Inc
7545 1605 1519 TPG Internet Pty Ltd
23456 3304 1513 32-bit ASN transition
7552 1392 1385 Vietel Corporation
4755 1545 1369 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 /8:19 /9:12 /10:27 /11:81 /12:234
/13:463 /14:802 /15:1422 /16:11994 /17:5988 /18:10032
/19:19803 /20:27078 /21:27236 /22:36824 /23:34865 /24:194470
/25:1138 /26:1344 /27:751 /28:44 /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 1576 1681 TVCABLE BOGOTA
7029 1410 1713 Windstream Communications Inc
30036 1363 1406 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1053 1828 PaeTec Communications, Inc.
7011 1052 1173 Citizens Utilities
8402 1028 1081 Corbina telecom
22773 949 1460 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:383 2:322 4:15 5:1 6:3 8:356
12:1957 13:1 14:532 15:13 16:3 17:7
20:10 23:35 24:1687 27:948 31:555 32:64
33:4 34:2 36:4 38:747 40:108 41:2656
42:49 44:3 46:993 47:3 49:262 50:430
52:13 54:2 55:3 56:2 57:37 58:875
59:493 60:363 61:1178 62:1080 63:1935 64:4050
65:2304 66:3976 67:1947 68:1119 69:3191 70:816
71:377 72:1855 74:2457 75:349 76:341 77:875
78:814 79:480 80:1119 81:838 82:502 83:482
84:621 85:1090 86:410 87:876 88:351 89:1581
90:268 91:4131 92:533 93:1306 94:1286 95:926
96:436 97:277 98:908 99:37 101:209 103:325
106:70 107:53 108:76 109:1028 110:666 111:789
112:322 113:449 114:567 115:696 116:875 117:706
118:895 119:1213 120:282 121:683 122:1610 123:1007
124:1335 125:1393 128:214 129:179 130:165 131:575
132:110 133:21 134:214 135:54 136:213 137:139
138:287 139:120 140:495 141:291 142:388 143:415
144:482 145:62 146:471 147:215 148:633 149:262
150:152 151:193 152:443 153:177 154:6 155:387
156:207 157:361 158:146 159:465 160:323 161:205
162:336 163:177 164:508 165:373 166:536 167:430
168:742 169:147 170:866 171:84 172:1 173:1640
174:646 175:402 176:215 177:306 178:1031 180:1092
181:37 182:627 183:212 184:369 185:1 186:1466
187:673 188:926 189:862 190:5160 192:5905 193:5020
194:3528 195:3066 196:1258 197:175 198:3631 199:4133
200:5480 201:1617 202:8576 203:8554 204:4256 205:2360
206:2678 207:2820 208:4036 209:3458 210:2706 211:1555
212:2053 213:1769 214:787 215:75 216:4898 217:1607
218:552 219:338 220:1228 221:500 222:341 223:263
End of report
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