Routing Table Report 04:00 +10GMT Tue 16 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 367081
Prefixes after maximum aggregation: 166533
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182281
Total ASes present in the Internet Routing Table: 38487
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31953
Origin ASes announcing only one prefix: 15361
Transit ASes present in the Internet Routing Table: 5215
Transit-only ASes present in the Internet Routing Table: 147
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1081
Unregistered ASNs in the Routing Table: 609
Number of 32-bit ASNs allocated by the RIRs: 1647
Number of 32-bit ASNs visible in the Routing Table: 1319
Prefixes from 32-bit ASNs in the Routing Table: 3056
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2493127360
Equivalent to 148 /8s, 154 /16s and 26 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 153053
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92039
Total APNIC prefixes after maximum aggregation: 30477
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 88546
Unique aggregates announced from the APNIC address blocks: 37732
APNIC Region origin ASes present in the Internet Routing Table: 4530
APNIC Prefixes per ASN: 19.55
APNIC Region origin ASes announcing only one prefix: 1243
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: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 69
Number of APNIC addresses announced to Internet: 623703584
Equivalent to 37 /8s, 44 /16s and 246 /24s
Percentage of available APNIC address space announced: 79.1
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: 141960
Total ARIN prefixes after maximum aggregation: 73352
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113805
Unique aggregates announced from the ARIN address blocks: 47064
ARIN Region origin ASes present in the Internet Routing Table: 14573
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5602
ARIN Region transit ASes present in the Internet Routing Table: 1542
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803345408
Equivalent to 47 /8s, 226 /16s and 20 /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: 87392
Total RIPE prefixes after maximum aggregation: 49668
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80616
Unique aggregates announced from the RIPE address blocks: 53313
RIPE Region origin ASes present in the Internet Routing Table: 15882
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7914
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 948
Number of RIPE addresses announced to Internet: 487155712
Equivalent to 29 /8s, 9 /16s and 104 /24s
Percentage of available RIPE address space announced: 78.5
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: 34058
Total LACNIC prefixes after maximum aggregation: 7641
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33241
Unique aggregates announced from the LACNIC address blocks: 17266
LACNIC Region origin ASes present in the Internet Routing Table: 1502
LACNIC Prefixes per ASN: 22.13
LACNIC Region origin ASes announcing only one prefix: 445
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: 286
Number of LACNIC addresses announced to Internet: 87497728
Equivalent to 5 /8s, 55 /16s and 28 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8406
Total AfriNIC prefixes after maximum aggregation: 2029
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6544
Unique aggregates announced from the AfriNIC address blocks: 2034
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26909696
Equivalent to 1 /8s, 154 /16s and 156 /24s
Percentage of available AfriNIC address space announced: 40.1
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 2500 11046 952 Korea Telecom (KIX)
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1574 301 85 TPG Internet Pty Ltd
4755 1534 635 170 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 BSNL National Internet Backbo
7552 1116 1062 11 Vietel Corporation
9583 1071 78 493 Sify Limited
4808 1065 2098 306 CNCGROUP IP network: China169
17488 997 187 131 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 3587 3817 232 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1818 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1591 1538 623 Charter Communications
7029 1574 991 228 Windstream Communications Inc
22773 1409 2903 93 Cox Communications, Inc.
7018 1360 7052 890 AT&T WorldNet Services
2386 1248 517 898 AT&T Data Communications Serv
7011 1159 279 625 Citizens Utilities
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 538 107 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 455 133 26 Bulgarian Telecommunication C
3320 425 8151 371 Deutsche Telekom AG
29049 417 31 55 AzerSat LLC.
8551 403 354 44 Bezeq International
3301 397 1855 346 TeliaNet Sweden
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 1574 290 165 TVCABLE BOGOTA
8151 1430 2755 355 UniNet S.A. de C.V.
28573 1265 996 67 NET Servicos de Comunicao S.A
7303 1065 578 175 Telecom Argentina Stet-France
6503 743 450 76 AVANTEL, S.A.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 531 232 96 Empresa Nacional de Telecomun
27947 517 53 53 Telconet S.A
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 807 147 43 LINKdotNET AS number
8452 680 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 253 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 193 28 64 Vodacom Internet Company
24835 179 78 10 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 3587 3817 232 bellsouth.net, inc.
23456 3056 730 1640 32-bit ASN transition
4766 2500 11046 952 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
17974 1909 516 31 PT TELEKOMUNIKASI INDONESIA
1785 1818 681 124 PaeTec Communications, Inc.
4323 1617 1086 401 Time Warner Telecom
20115 1591 1538 623 Charter Communications
7029 1574 991 228 Windstream Communications Inc
7545 1574 301 85 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 1909 1878 PT TELEKOMUNIKASI INDONESIA
1785 1818 1694 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2500 1548 Korea Telecom (KIX)
7545 1574 1489 TPG Internet Pty Ltd
23456 3056 1416 32-bit ASN transition
10620 1574 1409 TVCABLE BOGOTA
4755 1534 1364 TATA Communications formerly
7029 1574 1346 Windstream Communications Inc
22773 1409 1316 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 /10:27 /11:81 /12:233
/13:465 /14:798 /15:1414 /16:12057 /17:5906 /18:9932
/19:19530 /20:26549 /21:26503 /22:35347 /23:34188 /24:190660
/25:1101 /26:1303 /27:741 /28:205 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2218 3587 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1491 3056 32-bit ASN transition
10620 1469 1574 TVCABLE BOGOTA
7029 1275 1574 Windstream Communications Inc
11492 1100 1146 Cable One
7011 1057 1159 Citizens Utilities
1785 1053 1818 PaeTec Communications, Inc.
22773 905 1409 Cox Communications, Inc.
30036 900 922 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:354 2:45 4:15 5:1 6:3 8:340
12:1961 13:1 14:512 15:15 16:3 17:5
20:10 23:19 24:1686 27:871 31:512 32:64
33:4 34:2 36:4 38:733 40:107 41:2533
42:45 44:3 46:1060 47:3 49:219 50:396
52:13 54:2 55:7 56:2 57:35 58:869
59:498 60:379 61:1191 62:1095 63:1929 64:3996
65:2300 66:3920 67:1912 68:1110 69:3088 70:747
71:262 72:1800 74:2368 75:329 76:341 77:862
78:708 79:477 80:1126 81:826 82:487 83:465
84:686 85:1075 86:517 87:836 88:336 89:1533
90:224 91:4036 92:525 93:1119 94:1344 95:870
96:370 97:266 98:920 99:37 101:79 103:191
106:69 107:31 108:57 109:1008 110:627 111:731
112:311 113:410 114:560 115:682 116:992 117:665
118:872 119:1181 120:315 121:689 122:1605 123:985
124:1313 125:1298 128:246 129:174 130:171 131:578
132:116 133:21 134:213 135:52 136:216 137:140
138:296 139:116 140:488 141:244 142:382 143:419
144:489 145:58 146:460 147:215 148:695 149:253
150:161 151:168 152:440 153:182 154:5 155:401
156:199 157:331 158:138 159:456 160:318 161:207
162:328 163:164 164:516 165:367 166:534 167:431
168:748 169:153 170:847 171:81 172:1 173:1640
174:623 175:393 176:147 177:208 178:1001 180:924
181:24 182:520 183:240 184:364 185:1 186:1362
187:742 188:911 189:929 190:5098 192:5919 193:4980
194:3507 195:3031 196:1209 197:123 198:3586 199:4030
200:5513 201:1474 202:8415 203:8474 204:4257 205:2332
206:2672 207:2787 208:4000 209:3412 210:2700 211:1460
212:2075 213:1766 214:779 215:70 216:4882 217:1610
218:553 219:354 220:1200 221:514 222:360 223:236
End of report
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