Routing Table Report 04:00 +10GMT Fri 11 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 349909
Prefixes after maximum aggregation: 157715
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172775
Total ASes present in the Internet Routing Table: 36022
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31042
Origin ASes announcing only one prefix: 14933
Transit ASes present in the Internet Routing Table: 4980
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: 386
Unregistered ASNs in the Routing Table: 175
Number of 32-bit ASNs allocated by the RIRs: 1189
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 250
Number of addresses announced to Internet: 2468181920
Equivalent to 147 /8s, 29 /16s and 119 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 145035
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87097
Total APNIC prefixes after maximum aggregation: 29730
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83876
Unique aggregates announced from the APNIC address blocks: 36265
APNIC Region origin ASes present in the Internet Routing Table: 4349
APNIC Prefixes per ASN: 19.29
APNIC Region origin ASes announcing only one prefix: 1201
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: 18
Number of APNIC addresses announced to Internet: 595703072
Equivalent to 35 /8s, 129 /16s and 181 /24s
Percentage of available APNIC address space announced: 75.5
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, 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: 140412
Total ARIN prefixes after maximum aggregation: 71709
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110966
Unique aggregates announced from the ARIN address blocks: 45002
ARIN Region origin ASes present in the Internet Routing Table: 14241
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5415
ARIN Region transit ASes present in the Internet Routing Table: 1480
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796443264
Equivalent to 47 /8s, 120 /16s and 194 /24s
Percentage of available ARIN address space announced: 63.3
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, 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: 82725
Total RIPE prefixes after maximum aggregation: 46980
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76023
Unique aggregates announced from the RIPE address blocks: 49685
RIPE Region origin ASes present in the Internet Routing Table: 15383
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7759
RIPE Region transit ASes present in the Internet Routing Table: 2402
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 480736000
Equivalent to 28 /8s, 167 /16s and 115 /24s
Percentage of available RIPE address space announced: 77.4
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: 31965
Total LACNIC prefixes after maximum aggregation: 7377
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30803
Unique aggregates announced from the LACNIC address blocks: 16110
LACNIC Region origin ASes present in the Internet Routing Table: 1435
LACNIC Prefixes per ASN: 21.47
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81348224
Equivalent to 4 /8s, 217 /16s and 70 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7500
Total AfriNIC prefixes after maximum aggregation: 1815
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5885
Unique aggregates announced from the AfriNIC address blocks: 1823
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 128
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: 22032896
Equivalent to 1 /8s, 80 /16s and 50 /24s
Percentage of available AfriNIC address space announced: 32.8
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 2421 9508 893 Korea Telecom (KIX)
7545 1593 301 82 TPG Internet Pty Ltd
4755 1427 638 167 TATA Communications formerly
17974 1409 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1129 324 186 Bharti Airtel Ltd., Telemedia
9583 1045 77 488 Sify Limited
4808 1005 2084 283 CNCGROUP IP network: China169
9829 1004 868 53 BSNL National Internet Backbo
17488 945 162 96 Hathway IP Over Cable Interne
18101 938 117 144 Reliance Infocom Ltd Internet
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 3681 3839 259 bellsouth.net, inc.
4323 2584 1109 403 Time Warner Telecom
19262 1829 4953 282 Verizon Global Networks
1785 1790 681 131 PaeTec Communications, Inc.
6478 1537 298 82 AT&T Worldnet Services
20115 1526 1534 650 Charter Communications
18566 1525 326 180 Covad Communications
7018 1363 6705 885 AT&T WorldNet Services
11492 1309 236 67 Cable One
2386 1294 537 934 AT&T Data Communications Serv
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 1780 318 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 466 98 145 BILISIM TELEKOM
3292 450 1996 389 TDC Tele Danmark
8866 443 133 23 Bulgarian Telecommunication C
20940 408 97 311 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 399 577 6 Uni2 Autonomous System
702 393 1800 307 UUNET - Commercial IP service
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 1384 258 163 TVCABLE BOGOTA
8151 1243 2700 367 UniNet S.A. de C.V.
28573 1243 963 83 NET Servicos de Comunicao S.A
6503 1181 354 73 AVANTEL, S.A.
7303 911 464 147 Telecom Argentina Stet-France
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 VTR PUNTO NET S.A.
3816 515 225 97 Empresa Nacional de Telecomun
11172 488 83 82 Servicios Alestra S.A de C.V
7738 479 922 30 Telecomunicacoes da Bahia 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 792 445 11 TEDATA
24863 770 147 39 LINKdotNET AS number
15475 419 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 141 422 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 3681 3839 259 bellsouth.net, inc.
4323 2584 1109 403 Time Warner Telecom
4766 2421 9508 893 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Global Networks
1785 1790 681 131 PaeTec Communications, Inc.
7545 1593 301 82 TPG Internet Pty Ltd
6478 1537 298 82 AT&T Worldnet Services
20115 1526 1534 650 Charter Communications
18566 1525 326 180 Covad Communications
4755 1427 638 167 TATA Communications formerly
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 2584 2181 Time Warner Telecom
1785 1790 1659 PaeTec Communications, Inc.
19262 1829 1547 Verizon Global Networks
4766 2421 1528 Korea Telecom (KIX)
7545 1593 1511 TPG Internet Pty Ltd
6478 1537 1455 AT&T Worldnet Services
17974 1409 1381 PT TELEKOMUNIKASI INDONESIA
18566 1525 1345 Covad Communications
4755 1427 1260 TATA Communications formerly
11492 1309 1242 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
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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /8:24 /9:11 /10:26 /11:73 /12:216
/13:447 /14:768 /15:1370 /16:11573 /17:5667 /18:9353
/19:19028 /20:24667 /21:25208 /22:33542 /23:31987 /24:182702
/25:1138 /26:1330 /27:719 /28:42 /29:9 /30:3
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3681 bellsouth.net, inc.
18566 1503 1525 Covad Communications
6478 1491 1537 AT&T Worldnet Services
4323 1391 2584 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1266 1309 Cable One
7011 1058 1159 Citizens Utilities
1785 1055 1790 PaeTec Communications, Inc.
6503 959 1181 AVANTEL, S.A.
19262 941 1829 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:264 2:48 4:14 5:1 8:341 12:2028
13:1 14:431 15:15 16:3 17:8 20:9
23:3 24:1512 27:609 31:4 32:60 33:4
34:2 36:2 37:1 38:745 39:1 40:101
41:2303 42:13 44:3 46:704 47:4 49:165
50:194 52:13 55:2 56:2 57:32 58:863
59:479 60:386 61:1113 62:1015 63:1925 64:3869
65:2351 66:4338 67:1771 68:1064 69:2880 70:700
71:399 72:2005 73:1 74:2346 75:283 76:340
77:839 78:699 79:445 80:1092 81:802 82:516
83:462 84:644 85:1044 86:570 87:752 88:350
89:1569 90:173 91:3596 92:494 93:1037 94:1212
95:779 96:471 97:250 98:801 99:34 101:56
106:1 107:4 108:129 109:909 110:479 111:721
112:321 113:383 114:495 115:668 116:958 117:679
118:712 119:1038 120:257 121:698 122:1614 123:1043
124:1298 125:1260 128:266 129:168 130:171 131:558
132:109 133:20 134:220 135:49 136:212 137:146
138:300 139:110 140:486 141:203 142:377 143:380
144:492 145:51 146:435 147:193 148:639 149:276
150:151 151:229 152:298 153:180 154:3 155:377
156:179 157:345 158:131 159:371 160:311 161:211
162:277 163:160 164:486 165:352 166:496 167:410
168:729 169:153 170:759 171:69 172:2 173:1256
174:516 175:323 177:35 178:795 180:816 181:4
182:383 183:244 184:229 186:1040 187:813 188:913
189:1033 190:4571 192:5775 193:4779 194:3488 195:2949
196:1209 197:4 198:3578 199:3860 200:5585 201:1584
202:8276 203:8478 204:4103 205:2308 206:2634 207:3071
208:3905 209:3482 210:2673 211:1353 212:1932 213:1708
214:751 215:63 216:4844 217:1653 218:555 219:373
220:1199 221:477 222:318 223:100
End of report
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