Routing Table Report 04:00 +10GMT Mon 31 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 340809
Prefixes after maximum aggregation: 154692
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169310
Total ASes present in the Internet Routing Table: 35710
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 30785
Origin ASes announcing only one prefix: 14946
Transit ASes present in the Internet Routing Table: 4925
Transit-only ASes present in the Internet Routing Table: 120
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: 314
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 209
Number of addresses announced to Internet: 2349742272
Equivalent to 140 /8s, 14 /16s and 56 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 139740
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85055
Total APNIC prefixes after maximum aggregation: 28816
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81839
Unique aggregates announced from the APNIC address blocks: 35536
APNIC Region origin ASes present in the Internet Routing Table: 4315
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1217
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: 586751776
Equivalent to 34 /8s, 249 /16s and 31 /24s
Percentage of available APNIC address space announced: 79.5
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 138004
Total ARIN prefixes after maximum aggregation: 70666
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108985
Unique aggregates announced from the ARIN address blocks: 44521
ARIN Region origin ASes present in the Internet Routing Table: 14156
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5408
ARIN Region transit ASes present in the Internet Routing Table: 1467
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751618176
Equivalent to 44 /8s, 204 /16s and 200 /24s
Percentage of available ARIN address space announced: 63.1
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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 81201
Total RIPE prefixes after maximum aggregation: 46167
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74547
Unique aggregates announced from the RIPE address blocks: 48370
RIPE Region origin ASes present in the Internet Routing Table: 15232
RIPE Prefixes per ASN: 4.89
RIPE Region origin ASes announcing only one prefix: 7769
RIPE Region transit ASes present in the Internet Routing Table: 2371
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457027136
Equivalent to 27 /8s, 61 /16s and 174 /24s
Percentage of available RIPE address space announced: 75.7
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31624
Total LACNIC prefixes after maximum aggregation: 7258
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30377
Unique aggregates announced from the LACNIC address blocks: 15790
LACNIC Region origin ASes present in the Internet Routing Table: 1422
LACNIC Prefixes per ASN: 21.36
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80242944
Equivalent to 4 /8s, 200 /16s and 105 /24s
Percentage of available LACNIC address space announced: 59.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 4703
Total AfriNIC prefixes after maximum aggregation: 1664
AfriNIC Deaggregation factor: 2.83
Prefixes being announced from the AfriNIC address blocks: 3517
Unique aggregates announced from the AfriNIC address blocks: 1592
AfriNIC Region origin ASes present in the Internet Routing Table: 404
AfriNIC Prefixes per ASN: 8.71
AfriNIC Region origin ASes announcing only one prefix: 124
AfriNIC Region transit ASes present in the Internet Routing Table: 89
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 18317056
Equivalent to 1 /8s, 23 /16s and 127 /24s
Percentage of available AfriNIC address space announced: 36.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1915 9485 526 Korea Telecom (KIX)
7545 1593 300 81 TPG Internet Pty Ltd
4755 1403 637 161 TATA Communications formerly
17974 1389 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1033 2126 292 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 925 117 142 Reliance Infocom Ltd Internet
9829 896 762 41 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 3709 3855 265 bellsouth.net, inc.
4323 2634 1109 403 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 133 PaeTec Communications, Inc.
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
7018 1356 6674 874 AT&T WorldNet Services
2386 1298 553 934 AT&T Data Communications Serv
22773 1275 2865 78 Cox Communications, Inc.
11492 1271 235 74 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 1764 319 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 412 577 6 Uni2 Autonomous System
3320 403 7619 352 Deutsche Telekom AG
8551 402 353 46 Bezeq International
702 396 1816 309 UUNET - Commercial IP service
20940 392 89 303 Akamai Technologies European
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 1357 252 165 TVCABLE BOGOTA
8151 1330 2632 358 UniNet S.A. de C.V.
28573 1245 961 82 NET Servicos de Comunicao S.A
6503 1149 355 78 AVANTEL, S.A.
7303 887 461 117 Telecom Argentina Stet-France
14420 614 55 90 CORPORACION NACIONAL DE TELEC
22047 566 310 15 VTR PUNTO NET S.A.
3816 505 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 152 438 87 MTN Network Solutions
36874 139 24 6 Cybersmart
29975 131 475 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 106 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service
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 3709 3855 265 bellsouth.net, inc.
4323 2634 1109 403 Time Warner Telecom
4766 1915 9485 526 Korea Telecom (KIX)
19262 1841 4943 285 Verizon Global Networks
1785 1787 697 133 PaeTec Communications, Inc.
7545 1593 300 81 TPG Internet Pty Ltd
20115 1521 1531 642 Charter Communications
6478 1483 292 54 AT&T Worldnet Services
4755 1403 637 161 TATA Communications formerly
17974 1389 467 27 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 2634 2231 Time Warner Telecom
1785 1787 1654 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1593 1512 TPG Internet Pty Ltd
6478 1483 1429 AT&T Worldnet Services
4766 1915 1389 Korea Telecom (KIX)
17974 1389 1362 PT TELEKOMUNIKASI INDONESIA
4755 1403 1242 TATA Communications formerly
22773 1275 1197 Cox Communications, Inc.
11492 1271 1197 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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /8:19 /9:10 /10:26 /11:71 /12:214
/13:440 /14:766 /15:1358 /16:11466 /17:5595 /18:9242
/19:18759 /20:24213 /21:24575 /22:32321 /23:30991 /24:177933
/25:985 /26:1061 /27:580 /28:158 /29:16 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1437 1483 AT&T Worldnet Services
4323 1422 2634 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1227 1271 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1787 PaeTec Communications, Inc.
19262 954 1841 Verizon Global Networks
6503 933 1149 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:34 4:13 5:1 8:329 12:2030
13:1 14:382 15:15 16:3 17:8 20:9
23:1 24:1468 27:555 32:61 33:5 34:2
36:1 37:1 38:693 40:101 41:1635 42:1
44:3 46:517 47:5 49:142 50:76 52:12
55:5 56:2 57:30 58:870 59:483 60:391
61:1121 62:853 63:1918 64:3761 65:2332 66:4072
67:1757 68:1006 69:2876 70:717 71:392 72:1988
73:1 74:2312 75:293 76:329 77:852 78:692
79:441 80:1020 81:769 82:512 83:470 84:459
85:1049 86:510 87:725 88:359 89:1584 90:159
91:3437 92:493 93:1040 94:1183 95:778 96:422
97:249 98:756 99:33 101:24 107:3 108:81
109:858 110:470 111:695 112:313 113:351 114:495
115:634 116:879 117:673 118:652 119:1030 120:241
121:703 122:1608 123:1052 124:1268 125:1212 128:247
129:157 130:174 131:568 132:110 133:20 134:218
135:49 136:216 137:147 138:293 139:120 140:490
141:198 142:364 143:374 144:427 145:51 146:426
147:194 148:627 149:273 150:151 151:230 152:303
153:175 154:3 155:346 156:174 157:341 158:128
159:377 160:314 161:204 162:277 163:117 164:483
165:338 166:480 167:423 168:736 169:152 170:747
171:66 172:1 173:1270 174:517 175:313 176:1
177:4 178:768 180:775 182:401 183:247 184:207
186:964 187:799 188:908 189:1021 190:4439 192:5783
193:4785 194:3469 195:2922 196:1026 197:3 198:3551
199:3749 200:5581 201:1579 202:8264 203:8433 204:4101
205:2330 206:2532 207:2961 208:3877 209:3494 210:2627
211:1330 212:1866 213:1625 214:751 215:62 216:4826
217:1487 218:527 219:374 220:1202 221:448 222:319
223:92
End of report
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