Routing Table Report 04:00 +10GMT Mon 07 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 344780
Prefixes after maximum aggregation: 155537
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 170478
Total ASes present in the Internet Routing Table: 35796
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 30872
Origin ASes announcing only one prefix: 14956
Transit ASes present in the Internet Routing Table: 4924
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: 422
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 1092
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: 196
Number of addresses announced to Internet: 2382268992
Equivalent to 141 /8s, 254 /16s and 138 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.2
Total number of prefixes smaller than registry allocations: 142447
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85218
Total APNIC prefixes after maximum aggregation: 28894
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 81905
Unique aggregates announced from the APNIC address blocks: 35640
APNIC Region origin ASes present in the Internet Routing Table: 4319
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1212
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: 20
Number of APNIC addresses announced to Internet: 589009952
Equivalent to 35 /8s, 27 /16s and 148 /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: 138664
Total ARIN prefixes after maximum aggregation: 71082
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109507
Unique aggregates announced from the ARIN address blocks: 44691
ARIN Region origin ASes present in the Internet Routing Table: 14174
ARIN Prefixes per ASN: 7.73
ARIN Region origin ASes announcing only one prefix: 5409
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 752192320
Equivalent to 44 /8s, 213 /16s and 139 /24s
Percentage of available ARIN address space announced: 62.3
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,
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: 81603
Total RIPE prefixes after maximum aggregation: 46318
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74920
Unique aggregates announced from the RIPE address blocks: 48668
RIPE Region origin ASes present in the Internet Routing Table: 15264
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7769
RIPE Region transit ASes present in the Internet Routing Table: 2359
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457222208
Equivalent to 27 /8s, 64 /16s and 168 /24s
Percentage of available RIPE address space announced: 73.7
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, 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: 31619
Total LACNIC prefixes after maximum aggregation: 7299
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30347
Unique aggregates announced from the LACNIC address blocks: 15873
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.27
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80387776
Equivalent to 4 /8s, 202 /16s and 158 /24s
Percentage of available LACNIC address space announced: 53.2
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: 7457
Total AfriNIC prefixes after maximum aggregation: 1833
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 5870
Unique aggregates announced from the AfriNIC address blocks: 1790
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 131
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: 21737984
Equivalent to 1 /8s, 75 /16s and 178 /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 1914 9485 525 Korea Telecom (KIX)
7545 1627 301 83 TPG Internet Pty Ltd
4755 1409 637 161 TATA Communications formerly
17974 1387 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1099 318 182 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1034 2130 292 CNCGROUP IP network: China169
17488 952 162 104 Hathway IP Over Cable Interne
18101 929 117 144 Reliance Infocom Ltd Internet
9829 895 762 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 3705 3855 265 bellsouth.net, inc.
4323 2624 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 132 PaeTec Communications, Inc.
20115 1522 1532 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1352 6673 873 AT&T WorldNet Services
2386 1295 553 933 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1264 235 79 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 515 1764 319 UPC Distribution Services
9198 464 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 447 2011 390 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 407 7620 355 Deutsche Telekom AG
8551 403 353 46 Bezeq International
702 396 1801 309 UUNET - Commercial IP service
20940 394 91 303 Akamai Technologies European
3301 384 1823 342 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 1331 2647 356 UniNet S.A. de C.V.
28573 1244 961 82 NET Servicos de Comunicao S.A
6503 1186 355 78 AVANTEL, S.A.
7303 887 461 117 Telecom Argentina Stet-France
14420 625 56 93 CORPORACION NACIONAL DE TELEC
22047 548 310 15 VTR PUNTO NET S.A.
3816 500 220 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 822 445 11 TEDATA
24863 762 147 39 LINKdotNET AS number
36992 641 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 152 438 87 MTN Network Solutions
29975 132 490 17 Vodacom
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 3705 3855 265 bellsouth.net, inc.
4323 2624 1109 403 Time Warner Telecom
4766 1914 9485 525 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 132 PaeTec Communications, Inc.
7545 1627 301 83 TPG Internet Pty Ltd
20115 1522 1532 642 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
4755 1409 637 161 TATA Communications formerly
17974 1387 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 2624 2221 Time Warner Telecom
1785 1785 1653 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1627 1544 TPG Internet Pty Ltd
6478 1482 1401 AT&T Worldnet Services
4766 1914 1389 Korea Telecom (KIX)
17974 1387 1360 PT TELEKOMUNIKASI INDONESIA
4755 1409 1248 TATA Communications formerly
10620 1374 1210 TVCABLE BOGOTA
22773 1278 1200 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
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 /9:11 /10:26 /11:73 /12:221
/13:444 /14:772 /15:1371 /16:11548 /17:5631 /18:9303
/19:18811 /20:24295 /21:24670 /22:32900 /23:31442 /24:180398
/25:991 /26:1074 /27:587 /28:166 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2284 3705 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1412 2624 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1221 1264 Cable One
18566 1160 1182 Covad Communications
7011 1062 1163 Citizens Utilities
1785 1054 1785 PaeTec Communications, Inc.
6503 964 1186 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)
----------------------------------------------
1:169 2:41 4:13 5:1 8:333 12:2010
13:1 14:398 15:15 16:3 17:8 20:9
21:2 23:1 24:1466 27:572 32:61 33:5
34:2 37:1 38:696 40:101 41:2322 44:3
46:552 47:5 49:143 50:83 52:12 55:4
56:2 57:31 58:866 59:483 60:391 61:1117
62:1076 63:1927 64:3753 65:2358 66:4127 67:1761
68:1005 69:2883 70:717 71:397 72:1994 73:1
74:2321 75:292 76:342 77:865 78:709 79:443
80:1044 81:825 82:534 83:472 84:645 85:1049
86:532 87:739 88:357 89:1590 90:156 91:3456
92:494 93:1041 94:1202 95:793 96:416 97:250
98:786 99:33 101:23 107:3 108:82 109:897
110:472 111:693 112:312 113:353 114:495 115:641
116:922 117:675 118:649 119:1012 120:240 121:699
122:1629 123:1059 124:1269 125:1216 128:264 129:152
130:170 131:566 132:110 133:20 134:217 135:49
136:216 137:146 138:291 139:120 140:490 141:197
142:358 143:375 144:480 145:52 146:429 147:193
148:627 149:274 150:152 151:230 152:306 153:177
154:3 155:347 156:176 157:342 158:128 159:379
160:315 161:205 162:278 163:161 164:486 165:338
166:483 167:420 168:741 169:152 170:751 171:66
172:2 173:1276 174:521 175:313 176:1 177:12
178:782 180:778 182:340 183:250 184:208 186:981
187:787 188:911 189:1050 190:4380 192:5791 193:4796
194:3500 195:2948 196:1176 197:3 198:3577 199:3761
200:5583 201:1578 202:8260 203:8426 204:4102 205:2342
206:2632 207:3081 208:3889 209:3498 210:2639 211:1333
212:1877 213:1723 214:757 215:62 216:4809 217:1616
218:527 219:376 220:1202 221:449 222:319 223:94
End of report
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