Routing Table Report 04:00 +10GMT Tue 06 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370477
Prefixes after maximum aggregation: 167308
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183439
Total ASes present in the Internet Routing Table: 38672
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 32075
Origin ASes announcing only one prefix: 15421
Transit ASes present in the Internet Routing Table: 5224
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1185
Unregistered ASNs in the Routing Table: 680
Number of 32-bit ASNs allocated by the RIRs: 1703
Number of 32-bit ASNs visible in the Routing Table: 1373
Prefixes from 32-bit ASNs in the Routing Table: 3180
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 2472920640
Equivalent to 147 /8s, 101 /16s and 198 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
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: 154467
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93348
Total APNIC prefixes after maximum aggregation: 30631
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89894
Unique aggregates announced from the APNIC address blocks: 38028
APNIC Region origin ASes present in the Internet Routing Table: 4550
APNIC Prefixes per ASN: 19.76
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 709
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: 78
Number of APNIC addresses announced to Internet: 625809696
Equivalent to 37 /8s, 77 /16s and 25 /24s
Percentage of available APNIC address space announced: 79.4
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: 142975
Total ARIN prefixes after maximum aggregation: 73466
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114876
Unique aggregates announced from the ARIN address blocks: 47246
ARIN Region origin ASes present in the Internet Routing Table: 14633
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5635
ARIN Region transit ASes present in the Internet Routing Table: 1554
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804328704
Equivalent to 47 /8s, 241 /16s and 21 /24s
Percentage of available ARIN address space announced: 63.9
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: 88102
Total RIPE prefixes after maximum aggregation: 49973
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81210
Unique aggregates announced from the RIPE address blocks: 53706
RIPE Region origin ASes present in the Internet Routing Table: 15934
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7934
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: 979
Number of RIPE addresses announced to Internet: 488475904
Equivalent to 29 /8s, 29 /16s and 141 /24s
Percentage of available RIPE address space announced: 78.7
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: 34379
Total LACNIC prefixes after maximum aggregation: 7728
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33663
Unique aggregates announced from the LACNIC address blocks: 17581
LACNIC Region origin ASes present in the Internet Routing Table: 1515
LACNIC Prefixes per ASN: 22.22
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 279
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: 300
Number of LACNIC addresses announced to Internet: 88061824
Equivalent to 5 /8s, 63 /16s and 183 /24s
Percentage of available LACNIC address space announced: 58.3
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: 8328
Total AfriNIC prefixes after maximum aggregation: 2022
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6433
Unique aggregates announced from the AfriNIC address blocks: 2012
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.35
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 26805504
Equivalent to 1 /8s, 153 /16s and 5 /24s
Percentage of available AfriNIC address space announced: 39.9
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 2507 11047 954 Korea Telecom (KIX)
17974 1979 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1577 301 83 TPG Internet Pty Ltd
4755 1538 635 169 TATA Communications formerly
24560 1177 336 193 Bharti Airtel Ltd., Telemedia
9829 1151 989 28 BSNL National Internet Backbo
4808 1073 2092 305 CNCGROUP IP network: China169
9583 1073 79 503 Sify Limited
17488 1036 192 158 Hathway IP Over Cable Interne
7552 986 1062 11 Vietel Corporation
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 3563 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1823 680 122 PaeTec Communications, Inc.
4323 1625 1085 396 Time Warner Telecom
20115 1591 1541 632 Charter Communications
7029 1583 995 230 Windstream Communications Inc
22773 1452 2906 99 Cox Communications, Inc.
19262 1393 4716 399 Verizon Global Networks
7018 1342 7051 877 AT&T WorldNet Services
2386 1223 515 881 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 541 107 182 BILISIM TELEKOM
6830 523 1811 321 UPC Distribution Services
20940 492 150 385 Akamai Technologies European
3292 470 2079 404 TDC Tele Danmark
12479 467 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 410 352 13 Corbina telecom
8551 404 354 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 1628 298 154 TVCABLE BOGOTA
8151 1403 2779 353 UniNet S.A. de C.V.
28573 1283 1003 71 NET Servicos de Comunicao S.A
7303 1055 578 168 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 592 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 563 55 82 Telconet S.A
3816 533 232 97 Empresa Nacional de Telecomun
7738 515 986 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
24863 810 147 43 LINKdotNET AS number
8452 648 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 193 28 62 Vodacom Internet Company
24835 181 70 12 RAYA Telecom - Egypt
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 3563 3817 226 bellsouth.net, inc.
23456 3180 753 1701 32-bit ASN transition
4766 2507 11047 954 Korea Telecom (KIX)
17974 1979 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1823 680 122 PaeTec Communications, Inc.
10620 1628 298 154 TVCABLE BOGOTA
4323 1625 1085 396 Time Warner Telecom
20115 1591 1541 632 Charter Communications
7029 1583 995 230 Windstream Communications Inc
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 1979 1948 PT TELEKOMUNIKASI INDONESIA
1785 1823 1701 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2507 1553 Korea Telecom (KIX)
7545 1577 1494 TPG Internet Pty Ltd
23456 3180 1479 32-bit ASN transition
10620 1628 1474 TVCABLE BOGOTA
4755 1538 1369 TATA Communications formerly
7029 1583 1353 Windstream Communications Inc
22773 1452 1353 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /12:233
/13:461 /14:798 /15:1410 /16:11956 /17:5948 /18:9975
/19:19667 /20:26682 /21:26804 /22:35875 /23:34581 /24:192634
/25:1111 /26:1297 /27:736 /28:161 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2200 3563 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1552 3180 32-bit ASN transition
10620 1523 1628 TVCABLE BOGOTA
7029 1282 1583 Windstream Communications Inc
11492 1108 1154 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1823 PaeTec Communications, Inc.
22773 942 1452 Cox Communications, Inc.
30036 930 958 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:364 2:51 4:15 5:1 6:3 8:348
12:1950 13:1 14:529 15:13 16:3 17:5
20:10 23:31 24:1679 27:933 31:524 32:64
33:3 34:2 36:4 38:736 40:107 41:2436
42:40 44:3 46:1082 47:3 49:233 50:413
52:13 54:2 55:3 56:2 57:35 58:868
59:492 60:376 61:1170 62:1092 63:1939 64:4022
65:2306 66:3932 67:1938 68:1111 69:3131 70:781
71:375 72:1853 74:2428 75:328 76:339 77:869
78:702 79:455 80:1122 81:840 82:495 83:495
84:684 85:1089 86:497 87:860 88:340 89:1540
90:231 91:4062 92:525 93:1140 94:1358 95:880
96:422 97:270 98:925 99:37 101:203 103:257
106:79 107:42 108:76 109:1020 110:666 111:750
112:308 113:432 114:563 115:704 116:982 117:777
118:881 119:1200 120:334 121:686 122:1605 123:997
124:1348 125:1355 128:248 129:178 130:166 131:581
132:118 133:21 134:211 135:53 136:213 137:136
138:294 139:116 140:490 141:286 142:389 143:422
144:486 145:61 146:466 147:222 148:632 149:250
150:153 151:190 152:441 153:179 154:6 155:396
156:201 157:354 158:141 159:458 160:319 161:207
162:335 163:170 164:511 165:367 166:537 167:433
168:748 169:146 170:850 171:84 172:1 173:1657
174:619 175:388 176:156 177:249 178:1020 180:1016
181:25 182:607 183:257 184:348 185:1 186:1403
187:689 188:939 189:877 190:5138 192:5924 193:5002
194:3521 195:3037 196:1237 197:146 198:3585 199:4090
200:5493 201:1638 202:8511 203:8505 204:4245 205:2332
206:2675 207:2832 208:4022 209:3435 210:2690 211:1463
212:2090 213:1761 214:755 215:76 216:4860 217:1614
218:549 219:343 220:1196 221:515 222:352 223:260
End of report
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