Routing Table Report 04:00 +10GMT Thu 17 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 346595
Prefixes after maximum aggregation: 156316
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171262
Total ASes present in the Internet Routing Table: 35879
Prefixes per ASN: 9.66
Origin-only ASes present in the Internet Routing Table: 30914
Origin ASes announcing only one prefix: 14975
Transit ASes present in the Internet Routing Table: 4965
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: 332
Unregistered ASNs in the Routing Table: 132
Number of 32-bit ASNs allocated by the RIRs: 1122
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: 195
Number of addresses announced to Internet: 2394553184
Equivalent to 142 /8s, 185 /16s and 251 /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: 88.0
Total number of prefixes smaller than registry allocations: 143507
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85755
Total APNIC prefixes after maximum aggregation: 29128
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 82540
Unique aggregates announced from the APNIC address blocks: 35783
APNIC Region origin ASes present in the Internet Routing Table: 4329
APNIC Prefixes per ASN: 19.07
APNIC Region origin ASes announcing only one prefix: 1211
APNIC Region transit ASes present in the Internet Routing Table: 694
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 589236768
Equivalent to 35 /8s, 31 /16s and 10 /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: 139492
Total ARIN prefixes after maximum aggregation: 71314
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110339
Unique aggregates announced from the ARIN address blocks: 44929
ARIN Region origin ASes present in the Internet Routing Table: 14202
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5411
ARIN Region transit ASes present in the Internet Routing Table: 1469
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786716064
Equivalent to 46 /8s, 228 /16s and 85 /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: 81998
Total RIPE prefixes after maximum aggregation: 46573
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75328
Unique aggregates announced from the RIPE address blocks: 49009
RIPE Region origin ASes present in the Internet Routing Table: 15308
RIPE Prefixes per ASN: 4.92
RIPE Region origin ASes announcing only one prefix: 7784
RIPE Region transit ASes present in the Internet Routing Table: 2388
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 460187712
Equivalent to 27 /8s, 109 /16s and 232 /24s
Percentage of available RIPE address space announced: 74.1
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: 31700
Total LACNIC prefixes after maximum aggregation: 7388
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 30460
Unique aggregates announced from the LACNIC address blocks: 15941
LACNIC Region origin ASes present in the Internet Routing Table: 1430
LACNIC Prefixes per ASN: 21.30
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80563328
Equivalent to 4 /8s, 205 /16s and 76 /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: 7434
Total AfriNIC prefixes after maximum aggregation: 1801
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5876
Unique aggregates announced from the AfriNIC address blocks: 1832
AfriNIC Region origin ASes present in the Internet Routing Table: 429
AfriNIC Prefixes per ASN: 13.70
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21776128
Equivalent to 1 /8s, 76 /16s and 71 /24s
Percentage of available AfriNIC address space announced: 32.4
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 2114 9490 678 Korea Telecom (KIX)
7545 1630 301 84 TPG Internet Pty Ltd
4755 1414 633 163 TATA Communications formerly
17974 1408 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1112 323 182 Bharti Airtel Ltd., Telemedia
9583 1043 77 487 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 952 162 105 Hathway IP Over Cable Interne
18101 928 117 141 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 3693 3855 261 bellsouth.net, inc.
4323 2625 1109 405 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1510 295 79 AT&T Worldnet Services
7018 1357 6673 876 AT&T WorldNet Services
2386 1299 553 936 AT&T Data Communications Serv
18566 1292 311 113 Covad Communications
11492 1275 236 76 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 513 1764 318 UPC Distribution Services
9198 466 267 15 Kazakhtelecom Data Network Ad
34984 464 98 143 BILISIM TELEKOM
3292 446 1996 388 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 411 7621 358 Deutsche Telekom AG
20940 408 96 314 Akamai Technologies European
8551 403 353 46 Bezeq International
702 396 1800 309 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 1373 255 166 TVCABLE BOGOTA
8151 1343 2680 358 UniNet S.A. de C.V.
28573 1206 926 98 NET Servicos de Comunicao S.A
6503 1186 354 73 AVANTEL, S.A.
7303 901 464 142 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 506 221 96 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 460 34 34 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
8452 806 445 11 TEDATA
24863 763 147 39 LINKdotNET AS number
36992 605 305 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
29571 192 17 11 Ci Telecom Autonomous system
15475 189 56 9 Nile Online
16637 149 422 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 3693 3855 261 bellsouth.net, inc.
4323 2625 1109 405 Time Warner Telecom
4766 2114 9490 678 Korea Telecom (KIX)
19262 1844 4955 284 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
7545 1630 301 84 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1510 295 79 AT&T Worldnet Services
4755 1414 633 163 TATA Communications formerly
17974 1408 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 2220 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
19262 1844 1560 Verizon Global Networks
7545 1630 1546 TPG Internet Pty Ltd
4766 2114 1436 Korea Telecom (KIX)
6478 1510 1431 AT&T Worldnet Services
17974 1408 1380 PT TELEKOMUNIKASI INDONESIA
4755 1414 1251 TATA Communications formerly
10620 1373 1207 TVCABLE BOGOTA
11492 1275 1199 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
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
/13:445 /14:764 /15:1363 /16:11501 /17:5642 /18:9306
/19:18839 /20:24377 /21:24863 /22:32969 /23:31682 /24:181413
/25:1051 /26:1201 /27:642 /28:166 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2280 3693 bellsouth.net, inc.
6478 1464 1510 AT&T Worldnet Services
4323 1414 2625 Time Warner Telecom
18566 1270 1292 Covad Communications
10620 1264 1373 TVCABLE BOGOTA
11492 1232 1275 Cable One
7011 1060 1163 Citizens Utilities
1785 1054 1784 PaeTec Communications, Inc.
6503 968 1186 AVANTEL, S.A.
19262 954 1844 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:185 2:45 4:13 5:1 8:334 12:2033
13:1 14:414 15:15 16:3 17:8 20:9
23:1 24:1483 27:588 32:60 33:4 34:2
37:1 38:703 40:101 41:2321 44:3 46:605
47:4 49:147 50:93 52:12 55:3 56:2
57:32 58:865 59:475 60:391 61:1114 62:1052
63:1940 64:3793 65:2359 66:4171 67:1789 68:1028
69:2912 70:738 71:402 72:2011 73:1 74:2324
75:292 76:345 77:873 78:706 79:448 80:1047
81:820 82:523 83:472 84:634 85:1057 86:552
87:751 88:355 89:1578 90:156 91:3492 92:493
93:1042 94:1204 95:766 96:454 97:251 98:784
99:33 101:30 107:3 108:88 109:923 110:480
111:702 112:311 113:363 114:500 115:655 116:896
117:681 118:670 119:1015 120:242 121:703 122:1632
123:1052 124:1278 125:1243 128:265 129:156 130:170
131:570 132:111 133:20 134:217 135:49 136:215
137:146 138:292 139:118 140:494 141:203 142:359
143:386 144:485 145:51 146:431 147:211 148:637
149:275 150:162 151:229 152:306 153:180 154:3
155:350 156:176 157:342 158:128 159:380 160:314
161:207 162:274 163:161 164:486 165:338 166:502
167:422 168:743 169:152 170:755 171:69 172:2
173:1323 174:527 175:306 176:1 177:7 178:781
180:810 182:360 183:247 184:211 186:1011 187:814
188:870 189:1050 190:4386 192:5802 193:4801 194:3500
195:2958 196:1159 197:3 198:3571 199:3834 200:5599
201:1582 202:8279 203:8439 204:4098 205:2342 206:2642
207:3085 208:3898 209:3491 210:2627 211:1335 212:1892
213:1729 214:758 215:62 216:4888 217:1623 218:538
219:377 220:1202 221:450 222:317 223:100
End of report
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