Routing Table Report 04:00 +10GMT Wed 16 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 350780
Prefixes after maximum aggregation: 158004
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 173108
Total ASes present in the Internet Routing Table: 36068
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 31089
Origin ASes announcing only one prefix: 14959
Transit ASes present in the Internet Routing Table: 4979
Transit-only ASes present in the Internet Routing Table: 126
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: 407
Unregistered ASNs in the Routing Table: 188
Number of 32-bit ASNs allocated by the RIRs: 1199
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: 192
Number of addresses announced to Internet: 2384431392
Equivalent to 142 /8s, 31 /16s and 137 /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: 89.2
Total number of prefixes smaller than registry allocations: 145489
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87445
Total APNIC prefixes after maximum aggregation: 29748
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 84272
Unique aggregates announced from the APNIC address blocks: 36368
APNIC Region origin ASes present in the Internet Routing Table: 4349
APNIC Prefixes per ASN: 19.38
APNIC Region origin ASes announcing only one prefix: 1205
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 596098592
Equivalent to 35 /8s, 135 /16s and 190 /24s
Percentage of available APNIC address space announced: 75.6
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: 140592
Total ARIN prefixes after maximum aggregation: 71784
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111111
Unique aggregates announced from the ARIN address blocks: 45003
ARIN Region origin ASes present in the Internet Routing Table: 14249
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5419
ARIN Region transit ASes present in the Internet Routing Table: 1473
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796567040
Equivalent to 47 /8s, 122 /16s and 166 /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: 82967
Total RIPE prefixes after maximum aggregation: 47206
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76298
Unique aggregates announced from the RIPE address blocks: 49992
RIPE Region origin ASes present in the Internet Routing Table: 15421
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7777
RIPE Region transit ASes present in the Internet Routing Table: 2407
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 464658944
Equivalent to 27 /8s, 178 /16s and 34 /24s
Percentage of available RIPE address space announced: 74.9
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: 32083
Total LACNIC prefixes after maximum aggregation: 7354
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30980
Unique aggregates announced from the LACNIC address blocks: 16127
LACNIC Region origin ASes present in the Internet Routing Table: 1431
LACNIC Prefixes per ASN: 21.65
LACNIC Region origin ASes announcing only one prefix: 431
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81458048
Equivalent to 4 /8s, 218 /16s and 243 /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: 7483
Total AfriNIC prefixes after maximum aggregation: 1808
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5884
Unique aggregates announced from the AfriNIC address blocks: 1787
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 127
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 22045184
Equivalent to 1 /8s, 80 /16s and 98 /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 2422 9508 892 Korea Telecom (KIX)
7545 1571 301 83 TPG Internet Pty Ltd
4755 1470 653 156 TATA Communications formerly
17974 1411 468 29 PT TELEKOMUNIKASI INDONESIA
24560 1129 324 186 Bharti Airtel Ltd., Telemedia
4808 1046 2142 294 CNCGROUP IP network: China169
9583 1046 76 489 Sify Limited
9829 1004 868 53 BSNL National Internet Backbo
17488 946 162 96 Hathway IP Over Cable Interne
18101 937 117 143 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 3677 3839 259 bellsouth.net, inc.
4323 2584 1093 402 Time Warner Telecom
19262 1830 4953 282 Verizon Global Networks
1785 1791 681 131 PaeTec Communications, Inc.
6478 1546 299 73 AT&T Worldnet Services
20115 1528 1535 649 Charter Communications
18566 1524 326 180 Covad Communications
7018 1367 6706 887 AT&T WorldNet Services
11492 1315 237 64 Cable One
2386 1291 536 931 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 451 95 201 BILISIM TELEKOM
3292 450 1996 389 TDC Tele Danmark
8866 444 133 24 Bulgarian Telecommunication C
20940 411 98 314 Akamai Technologies European
8402 407 320 11 Corbina telecom
3320 406 7604 352 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 402 577 6 Uni2 Autonomous System
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 1392 259 163 TVCABLE BOGOTA
28573 1238 965 82 NET Servicos de Comunicao S.A
8151 1237 2700 368 UniNet S.A. de C.V.
6503 1174 354 73 AVANTEL, S.A.
7303 922 464 148 Telecom Argentina Stet-France
14420 634 51 88 CORPORACION NACIONAL DE TELEC
22047 544 310 15 VTR PUNTO NET S.A.
3816 513 225 97 Empresa Nacional de Telecomun
11172 489 99 83 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 794 445 11 TEDATA
24863 773 147 39 LINKdotNET AS number
15475 419 90 8 Nile Online
36992 297 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 225 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 140 422 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 3677 3839 259 bellsouth.net, inc.
4323 2584 1093 402 Time Warner Telecom
4766 2422 9508 892 Korea Telecom (KIX)
19262 1830 4953 282 Verizon Global Networks
1785 1791 681 131 PaeTec Communications, Inc.
7545 1571 301 83 TPG Internet Pty Ltd
6478 1546 299 73 AT&T Worldnet Services
20115 1528 1535 649 Charter Communications
18566 1524 326 180 Covad Communications
4755 1470 653 156 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 2182 Time Warner Telecom
1785 1791 1660 PaeTec Communications, Inc.
19262 1830 1548 Verizon Global Networks
4766 2422 1530 Korea Telecom (KIX)
7545 1571 1488 TPG Internet Pty Ltd
6478 1546 1473 AT&T Worldnet Services
17974 1411 1382 PT TELEKOMUNIKASI INDONESIA
18566 1524 1344 Covad Communications
4755 1470 1314 TATA Communications formerly
11492 1315 1251 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.185.0.0/21 48573 LLC NFS Telecom
41.57.192.0/18 22750 BCSNET
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 /12:216
/13:447 /14:767 /15:1369 /16:11556 /17:5682 /18:9367
/19:19050 /20:24698 /21:25274 /22:33626 /23:32065 /24:183312
/25:1129 /26:1328 /27:707 /28:41 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3677 bellsouth.net, inc.
18566 1503 1524 Covad Communications
6478 1500 1546 AT&T Worldnet Services
4323 1393 2584 Time Warner Telecom
10620 1283 1392 TVCABLE BOGOTA
11492 1272 1315 Cable One
7011 1062 1162 Citizens Utilities
1785 1057 1791 PaeTec Communications, Inc.
6503 953 1174 AVANTEL, S.A.
19262 941 1830 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:269 2:72 4:14 5:1 8:340 12:2026
13:1 14:429 15:15 16:3 17:8 20:10
23:3 24:1536 27:637 31:2 32:60 33:4
34:2 37:1 38:714 39:1 40:101 41:2278
44:3 46:725 47:4 49:163 50:199 52:13
55:2 56:2 57:32 58:862 59:495 60:387
61:1144 62:994 63:1925 64:3873 65:2349 66:4347
67:1775 68:1074 69:2895 70:703 71:400 72:1999
73:1 74:2351 75:283 76:342 77:846 78:698
79:454 80:1100 81:818 82:515 83:467 84:644
85:1045 86:576 87:757 88:353 89:1571 90:174
91:3631 92:497 93:1042 94:1219 95:784 96:471
97:251 98:800 99:34 101:48 106:1 107:4
108:129 109:905 110:477 111:718 112:322 113:373
114:496 115:715 116:968 117:677 118:720 119:1046
120:257 121:757 122:1615 123:1037 124:1294 125:1265
128:265 129:169 130:171 131:558 132:100 133:20
134:216 135:49 136:213 137:145 138:298 139:106
140:485 141:203 142:377 143:381 144:475 145:52
146:434 147:208 148:633 149:275 150:161 151:229
152:298 153:180 154:3 155:375 156:182 157:346
158:131 159:372 160:312 161:212 162:277 163:161
164:491 165:351 166:500 167:410 168:724 169:156
170:759 171:69 172:2 173:1262 174:517 175:326
177:35 178:804 180:818 181:4 182:384 183:245
184:234 185:1 186:1044 187:853 188:927 189:1031
190:4699 192:5770 193:4789 194:3490 195:2950 196:1192
197:6 198:3580 199:3852 200:5589 201:1575 202:8309
203:8487 204:4096 205:2301 206:2643 207:3046 208:3921
209:3480 210:2687 211:1351 212:1951 213:1724 214:758
215:66 216:4863 217:1649 218:553 219:381 220:1199
221:476 222:321 223:99
End of report
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