Routing Table Report 04:00 +10GMT Fri 11 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 345449
Prefixes after maximum aggregation: 155688
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 170889
Total ASes present in the Internet Routing Table: 35849
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 30897
Origin ASes announcing only one prefix: 14967
Transit ASes present in the Internet Routing Table: 4952
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: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 331
Unregistered ASNs in the Routing Table: 129
Number of 32-bit ASNs allocated by the RIRs: 1101
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: 210
Number of addresses announced to Internet: 2389876800
Equivalent to 142 /8s, 114 /16s and 160 /24s
Percentage of available address space announced: 64.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.8
Total number of prefixes smaller than registry allocations: 142606
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85290
Total APNIC prefixes after maximum aggregation: 28829
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82072
Unique aggregates announced from the APNIC address blocks: 35758
APNIC Region origin ASes present in the Internet Routing Table: 4320
APNIC Prefixes per ASN: 19.00
APNIC Region origin ASes announcing only one prefix: 1208
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 586866720
Equivalent to 34 /8s, 250 /16s and 224 /24s
Percentage of available APNIC address space announced: 74.4
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: 138979
Total ARIN prefixes after maximum aggregation: 71240
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109875
Unique aggregates announced from the ARIN address blocks: 44824
ARIN Region origin ASes present in the Internet Routing Table: 14188
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5414
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: 786282368
Equivalent to 46 /8s, 221 /16s and 183 /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: 81818
Total RIPE prefixes after maximum aggregation: 46387
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75139
Unique aggregates announced from the RIPE address blocks: 48799
RIPE Region origin ASes present in the Internet Routing Table: 15294
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7780
RIPE Region transit ASes present in the Internet Routing Table: 2374
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 458447680
Equivalent to 27 /8s, 83 /16s and 91 /24s
Percentage of available RIPE address space announced: 73.9
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: 31686
Total LACNIC prefixes after maximum aggregation: 7320
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30438
Unique aggregates announced from the LACNIC address blocks: 15925
LACNIC Region origin ASes present in the Internet Routing Table: 1428
LACNIC Prefixes per ASN: 21.32
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80573056
Equivalent to 4 /8s, 205 /16s and 114 /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: 7452
Total AfriNIC prefixes after maximum aggregation: 1797
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5868
Unique aggregates announced from the AfriNIC address blocks: 1822
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.46
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: 31
Number of AfriNIC addresses announced to Internet: 21830656
Equivalent to 1 /8s, 77 /16s and 28 /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 1976 9486 553 Korea Telecom (KIX)
7545 1635 301 85 TPG Internet Pty Ltd
4755 1412 633 161 TATA Communications formerly
17974 1406 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1108 323 181 Bharti Airtel Ltd., Telemedia
4808 1042 2142 294 CNCGROUP IP network: China169
9583 1042 76 487 Sify Limited
17488 952 162 104 Hathway IP Over Cable Interne
18101 928 117 144 Reliance Infocom Ltd Internet
9829 896 763 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 3708 3855 264 bellsouth.net, inc.
4323 2623 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 131 PaeTec Communications, Inc.
20115 1527 1534 643 Charter Communications
6478 1499 296 65 AT&T Worldnet Services
7018 1352 6673 871 AT&T WorldNet Services
2386 1299 553 936 AT&T Data Communications Serv
22773 1276 2865 78 Cox Communications, Inc.
11492 1267 235 78 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 512 1764 317 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 455 97 136 BILISIM TELEKOM
3292 444 1996 387 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 406 7620 355 Deutsche Telekom AG
8551 403 353 46 Bezeq International
20940 401 93 308 Akamai Technologies European
702 395 1800 308 UUNET - Commercial IP service
3301 382 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 1374 255 164 TVCABLE BOGOTA
8151 1341 2663 360 UniNet S.A. de C.V.
28573 1243 959 82 NET Servicos de Comunicao S.A
6503 1188 355 78 AVANTEL, S.A.
7303 891 447 143 Telecom Argentina Stet-France
14420 639 57 93 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 503 220 94 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
8452 772 445 11 TEDATA
24863 763 147 39 LINKdotNET AS number
36992 583 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
15475 220 56 9 Nile Online
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
16637 146 422 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 3708 3855 264 bellsouth.net, inc.
4323 2623 1109 403 Time Warner Telecom
4766 1976 9486 553 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 131 PaeTec Communications, Inc.
7545 1635 301 85 TPG Internet Pty Ltd
20115 1527 1534 643 Charter Communications
6478 1499 296 65 AT&T Worldnet Services
4755 1412 633 161 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 2623 2220 Time Warner Telecom
1785 1785 1654 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1635 1550 TPG Internet Pty Ltd
6478 1499 1434 AT&T Worldnet Services
4766 1976 1423 Korea Telecom (KIX)
17974 1406 1378 PT TELEKOMUNIKASI INDONESIA
4755 1412 1251 TATA Communications formerly
10620 1374 1210 TVCABLE BOGOTA
22773 1276 1198 Cox Communications, Inc.
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
31.28.0.0/19 29076 Hoster.RU autonomous system
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
41.222.79.0/24 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 /11:71 /12:215
/13:442 /14:765 /15:1362 /16:11487 /17:5642 /18:9320
/19:18828 /20:24346 /21:24732 /22:32943 /23:31597 /24:180838
/25:975 /26:1068 /27:564 /28:170 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2287 3708 bellsouth.net, inc.
6478 1453 1499 AT&T Worldnet Services
4323 1412 2623 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1224 1267 Cable One
18566 1206 1228 Covad Communications
7011 1062 1165 Citizens Utilities
1785 1055 1785 PaeTec Communications, Inc.
6503 965 1188 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)
----------------------------------------------
1:176 2:46 4:13 5:1 8:333 12:2028
13:1 14:421 15:15 16:3 17:8 20:9
23:1 24:1474 27:580 32:61 33:5 34:2
37:1 38:700 40:101 41:2283 44:3 46:578
47:5 49:145 50:82 52:12 55:6 56:2
57:32 58:865 59:481 60:391 61:1113 62:1095
63:1942 64:3751 65:2359 66:4149 67:1762 68:1008
69:2891 70:712 71:397 72:1976 73:1 74:2323
75:293 76:341 77:865 78:707 79:443 80:1047
81:823 82:535 83:472 84:651 85:1049 86:542
87:741 88:357 89:1569 90:156 91:3461 92:494
93:1039 94:1198 95:750 96:426 97:250 98:789
99:33 101:27 107:3 108:86 109:957 110:472
111:698 112:310 113:354 114:498 115:641 116:929
117:679 118:662 119:1023 120:240 121:702 122:1635
123:1062 124:1266 125:1220 128:264 129:153 130:173
131:570 132:109 133:20 134:217 135:49 136:216
137:147 138:291 139:117 140:491 141:196 142:358
143:386 144:486 145:51 146:430 147:194 148:634
149:274 150:162 151:230 152:306 153:178 154:3
155:350 156:176 157:342 158:129 159:380 160:315
161:205 162:271 163:161 164:486 165:338 166:496
167:420 168:741 169:151 170:755 171:68 172:2
173:1284 174:517 175:315 176:1 177:4 178:789
180:794 182:346 183:252 184:208 186:1006 187:803
188:906 189:1048 190:4367 192:5793 193:4800 194:3507
195:2960 196:1169 197:3 198:3576 199:3826 200:5598
201:1578 202:8270 203:8438 204:4117 205:2337 206:2634
207:3080 208:3883 209:3480 210:2654 211:1332 212:1879
213:1730 214:758 215:62 216:4817 217:1612 218:531
219:376 220:1208 221:449 222:318 223:94
End of report
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