Routing Table Report 04:00 +10GMT Mon 07 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 349179
Prefixes after maximum aggregation: 157517
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172254
Total ASes present in the Internet Routing Table: 36016
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31038
Origin ASes announcing only one prefix: 14955
Transit ASes present in the Internet Routing Table: 4978
Transit-only ASes present in the Internet Routing Table: 125
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: 379
Unregistered ASNs in the Routing Table: 175
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: 250
Number of addresses announced to Internet: 2455952800
Equivalent to 146 /8s, 98 /16s and 221 /24s
Percentage of available address space announced: 66.3
Percentage of allocated address space announced: 66.3
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: 144978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86663
Total APNIC prefixes after maximum aggregation: 29682
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 83450
Unique aggregates announced from the APNIC address blocks: 36095
APNIC Region origin ASes present in the Internet Routing Table: 4341
APNIC Prefixes per ASN: 19.22
APNIC Region origin ASes announcing only one prefix: 1198
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 594710304
Equivalent to 35 /8s, 114 /16s and 143 /24s
Percentage of available APNIC address space announced: 75.4
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: 140226
Total ARIN prefixes after maximum aggregation: 71642
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110808
Unique aggregates announced from the ARIN address blocks: 44944
ARIN Region origin ASes present in the Internet Routing Table: 14236
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5422
ARIN Region transit ASes present in the Internet Routing Table: 1478
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787583872
Equivalent to 46 /8s, 241 /16s and 147 /24s
Percentage of available ARIN address space announced: 62.6
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: 82473
Total RIPE prefixes after maximum aggregation: 46896
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75777
Unique aggregates announced from the RIPE address blocks: 49410
RIPE Region origin ASes present in the Internet Routing Table: 15385
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7776
RIPE Region transit ASes present in the Internet Routing Table: 2396
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 478693632
Equivalent to 28 /8s, 136 /16s and 73 /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: 32029
Total LACNIC prefixes after maximum aggregation: 7381
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30868
Unique aggregates announced from the LACNIC address blocks: 16116
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.50
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81374336
Equivalent to 4 /8s, 217 /16s and 172 /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: 7572
Total AfriNIC prefixes after maximum aggregation: 1809
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 5959
Unique aggregates announced from the AfriNIC address blocks: 1831
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.70
AfriNIC Region origin ASes announcing only one prefix: 129
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: 21892352
Equivalent to 1 /8s, 78 /16s and 13 /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 2419 9501 891 Korea Telecom (KIX)
7545 1462 300 73 TPG Internet Pty Ltd
4755 1421 638 165 TATA Communications formerly
17974 1402 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1117 324 186 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1045 77 488 Sify Limited
17488 941 161 102 Hathway IP Over Cable Interne
18101 936 117 143 Reliance Infocom Ltd Internet
9829 893 762 49 BSNL National Internet Backbo
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 3682 3839 259 bellsouth.net, inc.
4323 2581 1109 403 Time Warner Telecom
19262 1829 4953 282 Verizon Global Networks
1785 1790 697 131 PaeTec Communications, Inc.
6478 1533 298 89 AT&T Worldnet Services
20115 1527 1534 650 Charter Communications
18566 1522 326 178 Covad Communications
7018 1365 6706 886 AT&T WorldNet Services
2386 1296 537 936 AT&T Data Communications Serv
11492 1288 236 70 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 514 1780 319 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 448 1996 389 TDC Tele Danmark
8866 442 133 23 Bulgarian Telecommunication C
20940 415 99 319 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1800 310 UUNET - Commercial IP service
12479 393 577 6 Uni2 Autonomous System
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 1387 257 164 TVCABLE BOGOTA
8151 1364 2702 364 UniNet S.A. de C.V.
28573 1224 961 83 NET Servicos de Comunicao S.A
6503 1176 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 514 225 96 Empresa Nacional de Telecomun
7738 479 922 30 Telecomunicacoes da Bahia S.A
11172 464 83 82 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
8452 833 445 11 TEDATA
24863 769 147 39 LINKdotNET AS number
15475 443 90 9 Nile Online
36992 300 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 227 78 10 RAYA Telecom - Egypt
6713 200 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 140 422 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 3682 3839 259 bellsouth.net, inc.
4323 2581 1109 403 Time Warner Telecom
4766 2419 9501 891 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Global Networks
1785 1790 697 131 PaeTec Communications, Inc.
6478 1533 298 89 AT&T Worldnet Services
20115 1527 1534 650 Charter Communications
18566 1522 326 178 Covad Communications
7545 1462 300 73 TPG Internet Pty Ltd
4755 1421 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 2581 2178 Time Warner Telecom
1785 1790 1659 PaeTec Communications, Inc.
19262 1829 1547 Verizon Global Networks
4766 2419 1528 Korea Telecom (KIX)
6478 1533 1444 AT&T Worldnet Services
7545 1462 1389 TPG Internet Pty Ltd
17974 1402 1373 PT TELEKOMUNIKASI INDONESIA
18566 1522 1344 Covad Communications
4755 1421 1256 TATA Communications formerly
10620 1387 1223 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
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
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 /9:10 /10:26 /11:72 /12:216
/13:446 /14:766 /15:1371 /16:11563 /17:5661 /18:9332
/19:18987 /20:24546 /21:25125 /22:33441 /23:31827 /24:182342
/25:1143 /26:1381 /27:713 /28:168 /29:9 /30:3
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3682 bellsouth.net, inc.
18566 1500 1522 Covad Communications
6478 1487 1533 AT&T Worldnet Services
4323 1390 2581 Time Warner Telecom
10620 1278 1387 TVCABLE BOGOTA
11492 1245 1288 Cable One
7011 1057 1158 Citizens Utilities
1785 1055 1790 PaeTec Communications, Inc.
6503 958 1176 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)
----------------------------------------------
1:264 2:44 4:14 5:1 8:339 9:1
12:2011 13:1 14:423 15:15 16:3 17:8
20:9 23:1 24:1508 27:594 31:3 32:60
33:4 34:2 36:2 37:1 38:710 39:1
40:101 41:2322 42:13 44:3 46:694 47:4
49:164 50:180 52:13 55:3 56:2 57:32
58:858 59:477 60:379 61:1109 62:1018 63:1924
64:3849 65:2347 66:4326 67:1772 68:1065 69:2877
70:700 71:406 72:1997 73:1 74:2350 75:291
76:340 77:840 78:696 79:441 80:1052 81:792
82:521 83:462 84:644 85:1045 86:574 87:753
88:357 89:1566 90:169 91:3578 92:494 93:1053
94:1227 95:774 96:463 97:252 98:812 99:34
101:50 106:1 107:4 108:129 109:913 110:475
111:722 112:318 113:387 114:508 115:666 116:944
117:677 118:688 119:1011 120:256 121:701 122:1625
123:1034 124:1290 125:1258 128:266 129:165 130:172
131:561 132:108 133:20 134:218 135:49 136:211
137:146 138:298 139:118 140:487 141:203 142:374
143:375 144:489 145:51 146:435 147:202 148:645
149:265 150:170 151:229 152:298 153:180 154:3
155:376 156:178 157:343 158:130 159:376 160:311
161:210 162:278 163:160 164:486 165:345 166:501
167:409 168:727 169:157 170:758 171:69 172:2
173:1249 174:520 175:322 176:1 177:35 178:788
180:815 181:4 182:393 183:244 184:249 186:1038
187:807 188:906 189:1032 190:4587 192:5776 193:4787
194:3484 195:2955 196:1197 197:4 198:3573 199:3845
200:5581 201:1583 202:8235 203:8433 204:4105 205:2302
206:2649 207:3068 208:3889 209:3482 210:2629 211:1355
212:1927 213:1729 214:749 215:63 216:4840 217:1651
218:546 219:373 220:1201 221:473 222:319 223:103
End of report
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