Routing Table Report 04:00 +10GMT Wed 09 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 349613
Prefixes after maximum aggregation: 157579
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172529
Total ASes present in the Internet Routing Table: 36008
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31033
Origin ASes announcing only one prefix: 14937
Transit ASes present in the Internet Routing Table: 4975
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 378
Unregistered ASNs in the Routing Table: 179
Number of 32-bit ASNs allocated by the RIRs: 1179
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 253
Number of addresses announced to Internet: 2465397664
Equivalent to 146 /8s, 242 /16s and 251 /24s
Percentage of available address space announced: 66.5
Percentage of allocated address space announced: 66.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 145048
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86960
Total APNIC prefixes after maximum aggregation: 29716
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83748
Unique aggregates announced from the APNIC address blocks: 36280
APNIC Region origin ASes present in the Internet Routing Table: 4346
APNIC Prefixes per ASN: 19.27
APNIC Region origin ASes announcing only one prefix: 1200
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 595608352
Equivalent to 35 /8s, 128 /16s and 67 /24s
Percentage of available APNIC address space announced: 75.5
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: 140296
Total ARIN prefixes after maximum aggregation: 71667
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110847
Unique aggregates announced from the ARIN address blocks: 44956
ARIN Region origin ASes present in the Internet Routing Table: 14233
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5409
ARIN Region transit ASes present in the Internet Routing Table: 1476
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796241024
Equivalent to 47 /8s, 117 /16s and 172 /24s
Percentage of available ARIN address space announced: 63.3
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: 82560
Total RIPE prefixes after maximum aggregation: 46905
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75840
Unique aggregates announced from the RIPE address blocks: 49420
RIPE Region origin ASes present in the Internet Routing Table: 15380
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7771
RIPE Region transit ASes present in the Internet Routing Table: 2395
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 478577152
Equivalent to 28 /8s, 134 /16s and 130 /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: 32052
Total LACNIC prefixes after maximum aggregation: 7377
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30892
Unique aggregates announced from the LACNIC address blocks: 16124
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.51
LACNIC Region origin ASes announcing only one prefix: 429
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 addresses announced to Internet: 81355136
Equivalent to 4 /8s, 217 /16s and 97 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7530
Total AfriNIC prefixes after maximum aggregation: 1809
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 5920
Unique aggregates announced from the AfriNIC address blocks: 1867
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21897472
Equivalent to 1 /8s, 78 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 32.6
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 2423 9509 892 Korea Telecom (KIX)
7545 1604 301 84 TPG Internet Pty Ltd
4755 1424 638 165 TATA Communications formerly
17974 1406 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1125 324 186 Bharti Airtel Ltd., Telemedia
9583 1045 77 488 Sify Limited
4808 1005 2084 283 CNCGROUP IP network: China169
9829 1001 867 52 BSNL National Internet Backbo
17488 942 162 103 Hathway IP Over Cable Interne
18101 937 117 144 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 3679 3839 261 bellsouth.net, inc.
4323 2580 1109 403 Time Warner Telecom
19262 1829 4953 282 Verizon Global Networks
1785 1790 697 131 PaeTec Communications, Inc.
6478 1532 298 91 AT&T Worldnet Services
20115 1527 1534 650 Charter Communications
18566 1524 326 180 Covad Communications
7018 1366 6706 888 AT&T WorldNet Services
2386 1297 537 937 AT&T Data Communications Serv
11492 1290 236 67 Cable One
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
6830 516 1780 319 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 450 1996 389 TDC Tele Danmark
8866 441 133 23 Bulgarian Telecommunication C
20940 414 99 318 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 397 577 6 Uni2 Autonomous System
702 393 1800 307 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 1384 258 163 TVCABLE BOGOTA
8151 1371 2702 366 UniNet S.A. de C.V.
28573 1239 964 84 NET Servicos de Comunicao S.A
6503 1178 354 73 AVANTEL, S.A.
7303 911 464 146 Telecom Argentina Stet-France
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 VTR PUNTO NET S.A.
3816 515 225 97 Empresa Nacional de Telecomun
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 466 53 50 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
8452 782 445 11 TEDATA
24863 770 147 39 LINKdotNET AS number
15475 440 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 141 422 85 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 3679 3839 261 bellsouth.net, inc.
4323 2580 1109 403 Time Warner Telecom
4766 2423 9509 892 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Global Networks
1785 1790 697 131 PaeTec Communications, Inc.
7545 1604 301 84 TPG Internet Pty Ltd
6478 1532 298 91 AT&T Worldnet Services
20115 1527 1534 650 Charter Communications
18566 1524 326 180 Covad Communications
4755 1424 638 165 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2580 2177 Time Warner Telecom
1785 1790 1659 PaeTec Communications, Inc.
19262 1829 1547 Verizon Global Networks
4766 2423 1531 Korea Telecom (KIX)
7545 1604 1520 TPG Internet Pty Ltd
6478 1532 1441 AT&T Worldnet Services
17974 1406 1377 PT TELEKOMUNIKASI INDONESIA
18566 1524 1344 Covad Communications
4755 1424 1259 TATA Communications formerly
11492 1290 1223 Cable One
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
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
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /8:24 /9:11 /10:26 /11:72 /12:216
/13:446 /14:768 /15:1372 /16:11572 /17:5651 /18:9327
/19:18963 /20:24582 /21:25147 /22:33493 /23:31933 /24:182642
/25:1136 /26:1329 /27:713 /28:171 /29:9 /30:3
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2269 3679 bellsouth.net, inc.
18566 1502 1524 Covad Communications
6478 1486 1532 AT&T Worldnet Services
4323 1389 2580 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1247 1290 Cable One
1785 1055 1790 PaeTec Communications, Inc.
7011 1055 1156 Citizens Utilities
6503 960 1178 AVANTEL, S.A.
19262 941 1829 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:263 2:45 4:14 5:1 8:340 12:2029
13:1 14:428 15:15 16:3 17:8 20:9
23:1 24:1507 27:605 31:4 32:60 33:4
34:2 36:2 37:1 38:710 39:1 40:101
41:2297 42:13 44:3 46:706 47:4 49:164
50:183 52:13 55:3 56:2 57:32 58:871
59:478 60:384 61:1108 62:1017 63:1926 64:3859
65:2349 66:4332 67:1779 68:1064 69:2877 70:700
71:407 72:2001 73:1 74:2343 75:291 76:340
77:846 78:698 79:431 80:1085 81:801 82:522
83:462 84:644 85:1042 86:574 87:752 88:357
89:1566 90:171 91:3584 92:496 93:1054 94:1226
95:768 96:455 97:252 98:809 99:34 101:51
106:1 107:4 108:129 109:911 110:478 111:720
112:320 113:391 114:509 115:667 116:956 117:679
118:689 119:1061 120:256 121:702 122:1620 123:1044
124:1288 125:1259 128:266 129:166 130:172 131:561
132:109 133:20 134:219 135:49 136:211 137:146
138:300 139:117 140:487 141:203 142:374 143:381
144:489 145:51 146:435 147:201 148:645 149:275
150:169 151:229 152:298 153:180 154:3 155:377
156:179 157:344 158:131 159:371 160:311 161:211
162:278 163:160 164:486 165:345 166:500 167:410
168:727 169:156 170:758 171:69 172:2 173:1244
174:521 175:327 177:35 178:794 180:814 181:4
182:399 183:243 184:226 186:1040 187:809 188:909
189:1032 190:4588 192:5773 193:4793 194:3495 195:2939
196:1193 197:4 198:3578 199:3859 200:5580 201:1583
202:8265 203:8460 204:4105 205:2313 206:2651 207:3068
208:3894 209:3484 210:2636 211:1353 212:1928 213:1731
214:762 215:63 216:4844 217:1650 218:549 219:373
220:1202 221:477 222:318 223:98
End of report
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