Routing Table Report 04:00 +10GMT Thu 10 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 349974
Prefixes after maximum aggregation: 157682
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 172616
Total ASes present in the Internet Routing Table: 36030
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31058
Origin ASes announcing only one prefix: 14942
Transit ASes present in the Internet Routing Table: 4972
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: 380
Unregistered ASNs in the Routing Table: 170
Number of 32-bit ASNs allocated by the RIRs: 1185
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: 254
Number of addresses announced to Internet: 2466035616
Equivalent to 146 /8s, 252 /16s and 183 /24s
Percentage of available address space announced: 66.5
Percentage of allocated address space announced: 66.5
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: 145188
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87019
Total APNIC prefixes after maximum aggregation: 29725
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 83799
Unique aggregates announced from the APNIC address blocks: 36320
APNIC Region origin ASes present in the Internet Routing Table: 4347
APNIC Prefixes per ASN: 19.28
APNIC Region origin ASes announcing only one prefix: 1198
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: 595637792
Equivalent to 35 /8s, 128 /16s and 182 /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: 140444
Total ARIN prefixes after maximum aggregation: 71698
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110978
Unique aggregates announced from the ARIN address blocks: 44992
ARIN Region origin ASes present in the Internet Routing Table: 14237
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5411
ARIN Region transit ASes present in the Internet Routing Table: 1475
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796346496
Equivalent to 47 /8s, 119 /16s and 72 /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: 82708
Total RIPE prefixes after maximum aggregation: 46957
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75996
Unique aggregates announced from the RIPE address blocks: 49468
RIPE Region origin ASes present in the Internet Routing Table: 15396
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7777
RIPE Region transit ASes present in the Internet Routing Table: 2397
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 478843136
Equivalent to 28 /8s, 138 /16s and 145 /24s
Percentage of available RIPE address space announced: 77.1
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: 32072
Total LACNIC prefixes after maximum aggregation: 7384
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30908
Unique aggregates announced from the LACNIC address blocks: 16115
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.52
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81350784
Equivalent to 4 /8s, 217 /16s and 80 /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: 7520
Total AfriNIC prefixes after maximum aggregation: 1814
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5903
Unique aggregates announced from the AfriNIC address blocks: 1825
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.60
AfriNIC Region origin ASes announcing only one prefix: 127
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 22027008
Equivalent to 1 /8s, 80 /16s and 27 /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 2420 9508 892 Korea Telecom (KIX)
7545 1599 301 83 TPG Internet Pty Ltd
4755 1425 638 166 TATA Communications formerly
17974 1408 467 28 PT TELEKOMUNIKASI INDONESIA
24560 1130 324 186 Bharti Airtel Ltd., Telemedia
9583 1045 77 488 Sify Limited
4808 1005 2084 283 CNCGROUP IP network: China169
9829 1003 867 52 BSNL National Internet Backbo
17488 943 162 103 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 2580 1109 403 Time Warner Telecom
19262 1829 4953 282 Verizon Global Networks
1785 1791 697 132 PaeTec Communications, Inc.
6478 1532 298 91 AT&T Worldnet Services
20115 1526 1534 650 Charter Communications
18566 1525 326 180 Covad Communications
7018 1364 6705 886 AT&T WorldNet Services
2386 1294 537 934 AT&T Data Communications Serv
11492 1293 236 69 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 1780 318 UPC Distribution Services
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 450 1996 389 TDC Tele Danmark
8866 443 133 23 Bulgarian Telecommunication C
20940 408 97 312 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 397 577 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 1374 2700 367 UniNet S.A. de C.V.
28573 1244 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
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 465 53 50 Telconet 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 784 445 11 TEDATA
24863 769 147 39 LINKdotNET AS number
15475 440 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 2580 1109 403 Time Warner Telecom
4766 2420 9508 892 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Global Networks
1785 1791 697 132 PaeTec Communications, Inc.
7545 1599 301 83 TPG Internet Pty Ltd
6478 1532 298 91 AT&T Worldnet Services
20115 1526 1534 650 Charter Communications
18566 1525 326 180 Covad Communications
4755 1425 638 166 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 2580 2177 Time Warner Telecom
1785 1791 1659 PaeTec Communications, Inc.
19262 1829 1547 Verizon Global Networks
4766 2420 1528 Korea Telecom (KIX)
7545 1599 1516 TPG Internet Pty Ltd
6478 1532 1441 AT&T Worldnet Services
17974 1408 1380 PT TELEKOMUNIKASI INDONESIA
18566 1525 1345 Covad Communications
4755 1425 1259 TATA Communications formerly
11492 1293 1224 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 /11:72 /12:216
/13:446 /14:768 /15:1372 /16:11571 /17:5659 /18:9344
/19:19020 /20:24635 /21:25173 /22:33528 /23:31969 /24:182769
/25:1136 /26:1327 /27:716 /28:173 /29:9 /30:3
/31:0 /32:7
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 1486 1532 AT&T Worldnet Services
4323 1389 2580 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1250 1293 Cable One
7011 1058 1159 Citizens Utilities
1785 1055 1791 PaeTec Communications, Inc.
6503 960 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)
----------------------------------------------
1:261 2:46 4:14 5:1 8:340 12:2028
13:1 14:431 15:15 16:3 17:8 20:9
23:1 24:1508 27:606 31:5 32:60 33:4
34:2 36:2 37:1 38:745 39:1 40:101
41:2280 42:13 44:3 46:709 47:4 49:164
50:185 52:13 55:2 56:2 57:32 58:863
59:479 60:386 61:1113 62:1018 63:1926 64:3866
65:2346 66:4343 67:1783 68:1063 69:2884 70:700
71:407 72:2005 73:1 74:2345 75:293 76:340
77:839 78:700 79:445 80:1092 81:801 82:522
83:462 84:644 85:1043 86:571 87:751 88:351
89:1567 90:171 91:3590 92:496 93:1053 94:1209
95:779 96:471 97:252 98:811 99:34 101:55
106:1 107:4 108:129 109:906 110:477 111:717
112:320 113:391 114:512 115:668 116:957 117:680
118:689 119:1058 120:257 121:698 122:1615 123:1042
124:1297 125:1259 128:266 129:167 130:171 131:559
132:109 133:20 134:220 135:49 136:211 137:146
138:300 139:117 140:485 141:203 142:376 143:380
144:489 145:51 146:435 147:193 148:643 149:275
150:169 151:229 152:298 153:180 154:3 155:377
156:179 157:345 158:131 159:371 160:311 161:211
162:278 163:160 164:486 165:352 166:502 167:410
168:728 169:157 170:759 171:69 172:2 173:1252
174:521 175:323 177:36 178:795 180:814 181:4
182:400 183:243 184:227 186:1042 187:815 188:908
189:1032 190:4584 192:5777 193:4783 194:3493 195:2952
196:1197 197:4 198:3576 199:3853 200:5575 201:1586
202:8273 203:8464 204:4103 205:2307 206:2649 207:3068
208:3899 209:3480 210:2649 211:1353 212:1932 213:1730
214:762 215:63 216:4849 217:1653 218:553 219:373
220:1201 221:477 222:318 223:102
End of report
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