Routing Table Report 04:00 +10GMT Tue 15 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 346096
Prefixes after maximum aggregation: 156032
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171061
Total ASes present in the Internet Routing Table: 35871
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 30912
Origin ASes announcing only one prefix: 14973
Transit ASes present in the Internet Routing Table: 4959
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 339
Unregistered ASNs in the Routing Table: 137
Number of 32-bit ASNs allocated by the RIRs: 1117
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 194
Number of addresses announced to Internet: 2393832544
Equivalent to 142 /8s, 174 /16s and 252 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 143207
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85575
Total APNIC prefixes after maximum aggregation: 29007
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82349
Unique aggregates announced from the APNIC address blocks: 35718
APNIC Region origin ASes present in the Internet Routing Table: 4320
APNIC Prefixes per ASN: 19.06
APNIC Region origin ASes announcing only one prefix: 1210
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 589146400
Equivalent to 35 /8s, 29 /16s and 169 /24s
Percentage of available APNIC address space announced: 74.7
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: 139317
Total ARIN prefixes after maximum aggregation: 71298
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110183
Unique aggregates announced from the ARIN address blocks: 44886
ARIN Region origin ASes present in the Internet Routing Table: 14206
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5416
ARIN Region transit ASes present in the Internet Routing Table: 1474
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786603424
Equivalent to 46 /8s, 226 /16s and 157 /24s
Percentage of available ARIN address space announced: 62.5
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: 81957
Total RIPE prefixes after maximum aggregation: 46471
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75319
Unique aggregates announced from the RIPE address blocks: 48876
RIPE Region origin ASes present in the Internet Routing Table: 15299
RIPE Prefixes per ASN: 4.92
RIPE Region origin ASes announcing only one prefix: 7779
RIPE Region transit ASes present in the Internet Routing Table: 2380
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 459412032
Equivalent to 27 /8s, 98 /16s and 18 /24s
Percentage of available RIPE address space announced: 74.0
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: 31657
Total LACNIC prefixes after maximum aggregation: 7344
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30410
Unique aggregates announced from the LACNIC address blocks: 15963
LACNIC Region origin ASes present in the Internet Routing Table: 1429
LACNIC Prefixes per ASN: 21.28
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80703104
Equivalent to 4 /8s, 207 /16s and 110 /24s
Percentage of available LACNIC address space announced: 53.4
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: 7368
Total AfriNIC prefixes after maximum aggregation: 1800
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 5782
Unique aggregates announced from the AfriNIC address blocks: 1830
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 21828864
Equivalent to 1 /8s, 77 /16s and 21 /24s
Percentage of available AfriNIC address space announced: 32.5
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 2065 9489 648 Korea Telecom (KIX)
7545 1633 301 84 TPG Internet Pty Ltd
4755 1413 633 162 TATA Communications formerly
17974 1406 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1109 323 181 Bharti Airtel Ltd., Telemedia
9583 1043 77 488 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 952 162 104 Hathway IP Over Cable Interne
18101 926 117 142 Reliance Infocom Ltd Internet
9829 898 763 42 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 3700 3855 262 bellsouth.net, inc.
4323 2625 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
20115 1528 1534 646 Charter Communications
6478 1508 295 87 AT&T Worldnet Services
7018 1354 6673 871 AT&T WorldNet Services
2386 1297 553 934 AT&T Data Communications Serv
11492 1282 236 73 Cable One
18566 1282 311 104 Covad Communications
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 511 1764 316 UPC Distribution Services
9198 464 266 14 Kazakhtelecom Data Network Ad
34984 456 97 137 BILISIM TELEKOM
3292 445 1996 387 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 406 7620 355 Deutsche Telekom AG
20940 405 95 312 Akamai Technologies European
8551 403 353 46 Bezeq International
702 395 1800 308 UUNET - Commercial IP service
3301 383 1822 341 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 1371 255 165 TVCABLE BOGOTA
8151 1341 2664 359 UniNet S.A. de C.V.
28573 1238 961 82 NET Servicos de Comunicao S.A
6503 1189 355 78 AVANTEL, S.A.
7303 891 447 141 Telecom Argentina Stet-France
14420 639 57 93 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 505 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 457 34 32 Telefonica del Sur 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 763 147 39 LINKdotNET AS number
8452 746 445 11 TEDATA
36992 589 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
15475 193 56 9 Nile Online
29571 193 19 11 Ci Telecom Autonomous system
16637 147 422 83 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 3700 3855 262 bellsouth.net, inc.
4323 2625 1109 403 Time Warner Telecom
4766 2065 9489 648 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
7545 1633 301 84 TPG Internet Pty Ltd
20115 1528 1534 646 Charter Communications
6478 1508 295 87 AT&T Worldnet Services
4755 1413 633 162 TATA Communications formerly
17974 1406 467 28 PT TELEKOMUNIKASI INDONESIA
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 2625 2222 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1633 1549 TPG Internet Pty Ltd
6478 1508 1421 AT&T Worldnet Services
4766 2065 1417 Korea Telecom (KIX)
17974 1406 1378 PT TELEKOMUNIKASI INDONESIA
4755 1413 1251 TATA Communications formerly
11492 1282 1209 Cable One
10620 1371 1206 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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /8:21 /9:10 /10:26 /11:72 /12:215
/13:444 /14:764 /15:1363 /16:11493 /17:5642 /18:9309
/19:18831 /20:24345 /21:24810 /22:32948 /23:31680 /24:181117
/25:1034 /26:1150 /27:628 /28:167 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2282 3700 bellsouth.net, inc.
6478 1462 1508 AT&T Worldnet Services
4323 1414 2625 Time Warner Telecom
10620 1262 1371 TVCABLE BOGOTA
18566 1260 1282 Covad Communications
11492 1239 1282 Cable One
7011 1060 1163 Citizens Utilities
1785 1054 1784 PaeTec Communications, Inc.
6503 966 1189 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:182 2:43 4:13 5:1 8:332 12:2027
13:1 14:411 15:15 16:3 17:8 20:9
23:1 24:1485 27:581 32:60 33:5 34:2
37:1 38:703 40:101 41:2272 44:3 46:601
47:4 49:147 50:90 52:12 55:5 56:2
57:32 58:853 59:477 60:391 61:1114 62:1071
63:1944 64:3786 65:2364 66:4166 67:1764 68:1027
69:2907 70:738 71:400 72:2009 73:1 74:2322
75:292 76:345 77:864 78:703 79:448 80:1048
81:822 82:540 83:472 84:651 85:1052 86:557
87:745 88:355 89:1575 90:156 91:3470 92:495
93:1043 94:1200 95:757 96:421 97:251 98:791
99:33 101:28 107:3 108:88 109:959 110:472
111:699 112:311 113:354 114:503 115:641 116:902
117:677 118:664 119:1020 120:240 121:702 122:1620
123:1062 124:1277 125:1230 128:264 129:153 130:172
131:569 132:109 133:20 134:217 135:49 136:215
137:147 138:291 139:118 140:493 141:203 142:359
143:389 144:486 145:51 146:432 147:204 148:635
149:274 150:155 151:229 152:306 153:179 154:3
155:350 156:176 157:340 158:129 159:380 160:315
161:206 162:274 163:158 164:486 165:339 166:500
167:422 168:742 169:151 170:754 171:69 172:2
173:1297 174:517 175:315 176:1 177:6 178:787
180:808 182:355 183:248 184:211 186:1010 187:821
188:866 189:1039 190:4369 192:5800 193:4799 194:3504
195:2944 196:1178 197:3 198:3573 199:3828 200:5559
201:1580 202:8276 203:8441 204:4108 205:2337 206:2628
207:3083 208:3903 209:3498 210:2653 211:1337 212:1884
213:1727 214:763 215:62 216:4888 217:1594 218:534
219:376 220:1203 221:449 222:318 223:98
End of report
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