Routing Table Report 04:00 +10GMT Wed 09 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 345257
Prefixes after maximum aggregation: 155692
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 170763
Total ASes present in the Internet Routing Table: 35817
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 30878
Origin ASes announcing only one prefix: 14967
Transit ASes present in the Internet Routing Table: 4939
Transit-only ASes present in the Internet Routing Table: 119
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: 424
Unregistered ASNs in the Routing Table: 126
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: 203
Number of addresses announced to Internet: 2414563392
Equivalent to 143 /8s, 235 /16s and 80 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
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: 142645
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85360
Total APNIC prefixes after maximum aggregation: 28925
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82053
Unique aggregates announced from the APNIC address blocks: 35693
APNIC Region origin ASes present in the Internet Routing Table: 4323
APNIC Prefixes per ASN: 18.98
APNIC Region origin ASes announcing only one prefix: 1212
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 586911776
Equivalent to 34 /8s, 251 /16s and 144 /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: 138884
Total ARIN prefixes after maximum aggregation: 71143
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109658
Unique aggregates announced from the ARIN address blocks: 44737
ARIN Region origin ASes present in the Internet Routing Table: 14176
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5411
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: 752340608
Equivalent to 44 /8s, 215 /16s and 206 /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: 81759
Total RIPE prefixes after maximum aggregation: 46368
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75086
Unique aggregates announced from the RIPE address blocks: 48776
RIPE Region origin ASes present in the Internet Routing Table: 15277
RIPE Prefixes per ASN: 4.91
RIPE Region origin ASes announcing only one prefix: 7775
RIPE Region transit ASes present in the Internet Routing Table: 2369
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 457627200
Equivalent to 27 /8s, 70 /16s and 214 /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: 31611
Total LACNIC prefixes after maximum aggregation: 7302
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30384
Unique aggregates announced from the LACNIC address blocks: 15902
LACNIC Region origin ASes present in the Internet Routing Table: 1428
LACNIC Prefixes per ASN: 21.28
LACNIC Region origin ASes announcing only one prefix: 435
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: 80487552
Equivalent to 4 /8s, 204 /16s and 36 /24s
Percentage of available LACNIC address space announced: 53.3
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: 7425
Total AfriNIC prefixes after maximum aggregation: 1843
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5840
Unique aggregates announced from the AfriNIC address blocks: 1811
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.43
AfriNIC Region origin ASes announcing only one prefix: 133
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: 21866496
Equivalent to 1 /8s, 77 /16s and 168 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1940 9485 529 Korea Telecom (KIX)
7545 1631 301 83 TPG Internet Pty Ltd
4755 1411 633 160 TATA Communications formerly
17974 1406 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1100 319 179 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 892 762 45 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 3714 3855 265 bellsouth.net, inc.
4323 2624 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
20115 1523 1533 640 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
7018 1354 6673 871 AT&T WorldNet Services
2386 1295 553 933 AT&T Data Communications Serv
22773 1278 2865 78 Cox Communications, Inc.
11492 1265 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 465 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 444 1996 387 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 1816 309 UUNET - Commercial IP service
20940 396 92 305 Akamai Technologies European
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 1374 255 164 TVCABLE BOGOTA
8151 1339 2648 359 UniNet S.A. de C.V.
28573 1241 961 82 NET Servicos de Comunicao S.A
6503 1186 355 78 AVANTEL, S.A.
7303 886 447 141 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 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 779 445 11 TEDATA
24863 762 147 39 LINKdotNET AS number
36992 591 313 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 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 146 422 83 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 3714 3855 265 bellsouth.net, inc.
4323 2624 1109 403 Time Warner Telecom
4766 1940 9485 529 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
7545 1631 301 83 TPG Internet Pty Ltd
20115 1523 1533 640 Charter Communications
6478 1482 291 81 AT&T Worldnet Services
4755 1411 633 160 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 2624 2221 Time Warner Telecom
1785 1786 1654 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1631 1548 TPG Internet Pty Ltd
4766 1940 1411 Korea Telecom (KIX)
6478 1482 1401 AT&T Worldnet Services
17974 1406 1378 PT TELEKOMUNIKASI INDONESIA
4755 1411 1251 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
31.144.0.0/16 21497 UMC 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 /9:11 /10:26 /11:72 /12:221
/13:445 /14:771 /15:1371 /16:11554 /17:5640 /18:9315
/19:18834 /20:24326 /21:24710 /22:32931 /23:31530 /24:180613
/25:995 /26:1076 /27:601 /28:167 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2292 3714 bellsouth.net, inc.
6478 1436 1482 AT&T Worldnet Services
4323 1412 2624 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1222 1265 Cable One
18566 1160 1182 Covad Communications
7011 1062 1165 Citizens Utilities
1785 1055 1786 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)
----------------------------------------------
1:173 2:46 4:13 5:1 8:333 12:2027
13:1 14:413 15:15 16:3 17:8 20:9
23:1 24:1471 27:576 32:61 33:5 34:2
37:1 38:697 40:101 41:2269 44:3 46:556
47:5 49:144 50:82 52:12 55:5 56:2
57:31 58:866 59:483 60:391 61:1115 62:1092
63:1927 64:3753 65:2358 66:4125 67:1758 68:1008
69:2883 70:716 71:396 72:1996 73:1 74:2323
75:293 76:342 77:866 78:704 79:443 80:1028
81:823 82:535 83:473 84:649 85:1051 86:536
87:741 88:357 89:1572 90:156 91:3471 92:493
93:1048 94:1203 95:798 96:425 97:250 98:786
99:33 101:27 107:3 108:86 109:903 110:472
111:695 112:310 113:357 114:496 115:642 116:921
117:676 118:649 119:1020 120:241 121:699 122:1632
123:1061 124:1278 125:1217 128:244 129:153 130:172
131:570 132:109 133:20 134:217 135:49 136:216
137:147 138:291 139:119 140:490 141:197 142:358
143:382 144:486 145:51 146:429 147:193 148:629
149:274 150:160 151:230 152:306 153:177 154:3
155:347 156:176 157:342 158:128 159:380 160:315
161:205 162:278 163:160 164:487 165:322 166:498
167:421 168:741 169:152 170:752 171:66 172:2
173:1276 174:518 175:314 176:1 177:4 178:797
180:794 182:345 183:250 184:207 186:997 187:813
188:910 189:1050 190:4365 192:5790 193:4797 194:3509
195:2953 196:1173 197:3 198:3576 199:3770 200:5575
201:1578 202:8254 203:8431 204:4107 205:2343 206:2629
207:3078 208:3891 209:3504 210:2644 211:1331 212:1876
213:1725 214:762 215:62 216:4863 217:1614 218:528
219:376 220:1205 221:449 222:319 223:95
End of report
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