Routing Table Report 04:00 +10GMT Tue 28 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 361779
Prefixes after maximum aggregation: 164249
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178741
Total ASes present in the Internet Routing Table: 38018
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31663
Origin ASes announcing only one prefix: 15221
Transit ASes present in the Internet Routing Table: 5164
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 856
Unregistered ASNs in the Routing Table: 464
Number of 32-bit ASNs allocated by the RIRs: 1500
Number of 32-bit ASNs visible in the Routing Table: 1191
Prefixes from 32-bit ASNs in the Routing Table: 2733
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 133
Number of addresses announced to Internet: 2493459776
Equivalent to 148 /8s, 159 /16s and 45 /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: 91.0
Total number of prefixes smaller than registry allocations: 150715
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89876
Total APNIC prefixes after maximum aggregation: 30212
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86630
Unique aggregates announced from the APNIC address blocks: 36212
APNIC Region origin ASes present in the Internet Routing Table: 4495
APNIC Prefixes per ASN: 19.27
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 712
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: 52
Number of APNIC addresses announced to Internet: 622727456
Equivalent to 37 /8s, 30 /16s and 17 /24s
Percentage of available APNIC address space announced: 79.0
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: 141267
Total ARIN prefixes after maximum aggregation: 72516
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 113243
Unique aggregates announced from the ARIN address blocks: 46542
ARIN Region origin ASes present in the Internet Routing Table: 14448
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5522
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 819305472
Equivalent to 48 /8s, 213 /16s and 156 /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: 86112
Total RIPE prefixes after maximum aggregation: 48943
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79504
Unique aggregates announced from the RIPE address blocks: 52580
RIPE Region origin ASes present in the Internet Routing Table: 15758
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7864
RIPE Region transit ASes present in the Internet Routing Table: 2490
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: 874
Number of RIPE addresses announced to Internet: 478381824
Equivalent to 28 /8s, 131 /16s and 135 /24s
Percentage of available RIPE address space announced: 77.1
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: 33350
Total LACNIC prefixes after maximum aggregation: 7566
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32407
Unique aggregates announced from the LACNIC address blocks: 16938
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 249
Number of LACNIC addresses announced to Internet: 85626880
Equivalent to 5 /8s, 26 /16s and 144 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8224
Total AfriNIC prefixes after maximum aggregation: 1954
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6496
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 466
AfriNIC Prefixes per ASN: 13.94
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 24248832
Equivalent to 1 /8s, 114 /16s and 2 /24s
Percentage of available AfriNIC address space announced: 36.1
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 2457 9500 928 Korea Telecom (KIX)
17974 1855 461 44 PT TELEKOMUNIKASI INDONESIA
7545 1543 301 85 TPG Internet Pty Ltd
4755 1490 635 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1073 79 505 Sify Limited
9829 1054 888 54 BSNL National Internet Backbo
4808 1051 2092 302 CNCGROUP IP network: China169
17488 958 185 103 Hathway IP Over Cable Interne
18101 931 116 139 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 3627 3819 246 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1798 681 122 PaeTec Communications, Inc.
4323 1662 1082 400 Time Warner Telecom
20115 1586 1531 635 Charter Communications
6478 1499 276 522 AT&T Worldnet Services
19262 1451 4806 371 Verizon Global Networks
7018 1361 7053 890 AT&T WorldNet Services
22773 1346 2897 87 Cox Communications, Inc.
7029 1308 790 298 Windstream Communications Inc
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 530 106 185 BILISIM TELEKOM
6830 515 1780 320 UPC Distribution Services
3292 469 2080 404 TDC Tele Danmark
20940 467 137 359 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 436 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 396 1839 345 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 1532 281 157 TVCABLE BOGOTA
8151 1423 2738 357 UniNet S.A. de C.V.
28573 1266 993 78 NET Servicos de Comunicao S.A
7303 992 507 171 Telecom Argentina Stet-France
6503 742 354 74 AVANTEL, S.A.
14420 684 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 531 231 94 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 503 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 797 147 37 LINKdotNET AS number
8452 792 445 11 TEDATA
15475 524 74 8 Nile Online
36992 313 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 216 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 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 3627 3819 246 bellsouth.net, inc.
23456 2733 676 1482 32-bit ASN transition
4766 2457 9500 928 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
17974 1855 461 44 PT TELEKOMUNIKASI INDONESIA
1785 1798 681 122 PaeTec Communications, Inc.
4323 1662 1082 400 Time Warner Telecom
20115 1586 1531 635 Charter Communications
7545 1543 301 85 TPG Internet Pty Ltd
10620 1532 281 157 TVCABLE BOGOTA
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 1855 1811 PT TELEKOMUNIKASI INDONESIA
1785 1798 1676 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2457 1529 Korea Telecom (KIX)
7545 1543 1458 TPG Internet Pty Ltd
10620 1532 1375 TVCABLE BOGOTA
4755 1490 1322 TATA Communications formerly
4323 1662 1262 Time Warner Telecom
22773 1346 1259 Cox Communications, Inc.
23456 2733 1251 32-bit ASN transition
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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:461 /14:800 /15:1397 /16:11969 /17:5863 /18:9752
/19:19421 /20:25819 /21:26089 /22:34521 /23:33490 /24:188490
/25:1093 /26:1274 /27:736 /28:212 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2232 3627 bellsouth.net, inc.
18566 1869 1913 Covad Communications
6478 1466 1499 AT&T Worldnet Services
10620 1427 1532 TVCABLE BOGOTA
23456 1338 2733 32-bit ASN transition
11492 1091 1137 Cable One
7011 1056 1157 Citizens Utilities
7029 1055 1308 Windstream Communications Inc
1785 1051 1798 PaeTec Communications, Inc.
22773 861 1346 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:298 2:50 4:16 5:1 6:3 8:336
12:1979 13:1 14:464 15:15 16:3 17:8
20:10 23:12 24:1656 27:802 31:473 32:64
33:4 34:2 37:1 38:736 39:3 40:103
41:2563 42:5 44:3 46:989 47:3 49:197
50:413 52:13 54:2 55:3 56:2 57:33
58:863 59:476 60:386 61:1181 62:1040 63:1936
64:3941 65:2286 66:3881 67:1902 68:1092 69:3024
70:757 71:389 72:1889 74:2376 75:320 76:338
77:890 78:710 79:462 80:1093 81:835 82:493
83:457 84:670 85:1077 86:549 87:759 88:336
89:1532 90:209 91:3877 92:537 93:1048 94:1319
95:836 96:445 97:254 98:886 99:36 101:76
103:90 106:9 107:16 108:70 109:1015 110:606
111:707 112:304 113:404 114:545 115:667 116:964
117:670 118:859 119:1146 120:313 121:669 122:1618
123:963 124:1304 125:1242 128:247 129:172 130:168
131:571 132:111 133:21 134:214 135:48 136:214
137:137 138:300 139:115 140:480 141:239 142:403
143:403 144:484 145:54 146:450 147:215 148:661
149:248 150:164 151:190 152:332 153:180 154:4
155:399 156:195 157:351 158:138 159:453 160:314
161:210 162:310 163:165 164:506 165:354 166:534
167:433 168:739 169:158 170:845 171:78 172:1
173:1632 174:610 175:375 176:138 177:151 178:987
180:893 181:19 182:483 183:223 184:307 185:1
186:1259 187:735 188:875 189:931 190:4914 192:5887
193:4971 194:3495 195:3042 196:1219 197:41 198:3588
199:3959 200:5535 201:1507 202:8346 203:8433 204:4206
205:2348 206:2680 207:2809 208:3951 209:3471 210:2701
211:1462 212:2103 213:1735 214:773 215:70 216:4936
217:1636 218:549 219:362 220:1203 221:491 222:361
223:169
End of report
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