Routing Table Report 04:00 +10GMT Tue 22 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 347380
Prefixes after maximum aggregation: 156822
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171642
Total ASes present in the Internet Routing Table: 35922
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 30954
Origin ASes announcing only one prefix: 14974
Transit ASes present in the Internet Routing Table: 4968
Transit-only ASes present in the Internet Routing Table: 122
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: 340
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 1137
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: 189
Number of addresses announced to Internet: 2397413344
Equivalent to 142 /8s, 229 /16s and 159 /24s
Percentage of available address space announced: 64.7
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 143906
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86180
Total APNIC prefixes after maximum aggregation: 29409
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 82988
Unique aggregates announced from the APNIC address blocks: 35920
APNIC Region origin ASes present in the Internet Routing Table: 4334
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1207
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: 20
Number of APNIC addresses announced to Internet: 590582816
Equivalent to 35 /8s, 51 /16s and 148 /24s
Percentage of available APNIC address space announced: 74.9
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: 139786
Total ARIN prefixes after maximum aggregation: 71523
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110569
Unique aggregates announced from the ARIN address blocks: 44970
ARIN Region origin ASes present in the Internet Routing Table: 14214
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5412
ARIN Region transit ASes present in the Internet Routing Table: 1471
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 787450240
Equivalent to 46 /8s, 239 /16s and 137 /24s
Percentage of available ARIN address space announced: 62.6
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: 82162
Total RIPE prefixes after maximum aggregation: 46597
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 75540
Unique aggregates announced from the RIPE address blocks: 49192
RIPE Region origin ASes present in the Internet Routing Table: 15326
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7785
RIPE Region transit ASes present in the Internet Routing Table: 2390
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 460431936
Equivalent to 27 /8s, 113 /16s and 162 /24s
Percentage of available RIPE address space announced: 74.2
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: 31790
Total LACNIC prefixes after maximum aggregation: 7361
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30535
Unique aggregates announced from the LACNIC address blocks: 15933
LACNIC Region origin ASes present in the Internet Routing Table: 1429
LACNIC Prefixes per ASN: 21.37
LACNIC Region origin ASes announcing only one prefix: 437
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: 80828544
Equivalent to 4 /8s, 209 /16s and 88 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7246
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 3.99
Prefixes being announced from the AfriNIC address blocks: 5677
Unique aggregates announced from the AfriNIC address blocks: 1816
AfriNIC Region origin ASes present in the Internet Routing Table: 437
AfriNIC Prefixes per ASN: 12.99
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 5.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21884672
Equivalent to 1 /8s, 77 /16s and 239 /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 2354 9498 855 Korea Telecom (KIX)
7545 1627 302 87 TPG Internet Pty Ltd
4755 1418 634 164 TATA Communications formerly
17974 1408 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1113 323 182 Bharti Airtel Ltd., Telemedia
9583 1044 77 488 Sify Limited
4808 1042 2142 294 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 931 117 141 Reliance Infocom Ltd Internet
9829 894 762 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 3694 3855 261 bellsouth.net, inc.
4323 2616 1109 405 Time Warner Telecom
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
7018 1365 6674 880 AT&T WorldNet Services
2386 1297 553 934 AT&T Data Communications Serv
11492 1280 236 73 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 513 1764 318 UPC Distribution Services
9198 467 267 15 Kazakhtelecom Data Network Ad
34984 463 98 143 BILISIM TELEKOM
3292 447 1996 388 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 410 7620 357 Deutsche Telekom AG
20940 410 97 316 Akamai Technologies European
8551 403 353 46 Bezeq International
702 396 1800 309 UUNET - Commercial IP service
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 255 166 TVCABLE BOGOTA
8151 1344 2682 359 UniNet S.A. de C.V.
28573 1232 961 82 NET Servicos de Comunicao S.A
6503 1166 354 73 AVANTEL, S.A.
7303 902 463 143 Telecom Argentina Stet-France
14420 638 57 92 CORPORACION NACIONAL DE TELEC
3816 559 223 102 Empresa Nacional de Telecomun
22047 545 310 15 VTR PUNTO NET S.A.
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 461 34 33 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
24863 676 147 39 LINKdotNET AS number
8452 629 445 11 TEDATA
15475 493 90 12 Nile Online
36992 302 271 14 Etisalat MISR
3741 263 987 225 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 201 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 153 439 89 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 3694 3855 261 bellsouth.net, inc.
4323 2616 1109 405 Time Warner Telecom
4766 2354 9498 855 Korea Telecom (KIX)
19262 1843 4955 283 Verizon Global Networks
1785 1784 697 131 PaeTec Communications, Inc.
7545 1627 302 87 TPG Internet Pty Ltd
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
4755 1418 634 164 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 2616 2211 Time Warner Telecom
1785 1784 1653 PaeTec Communications, Inc.
19262 1843 1560 Verizon Global Networks
7545 1627 1540 TPG Internet Pty Ltd
4766 2354 1499 Korea Telecom (KIX)
6478 1518 1439 AT&T Worldnet Services
17974 1408 1379 PT TELEKOMUNIKASI INDONESIA
18566 1435 1279 Covad Communications
4755 1418 1254 TATA Communications formerly
10620 1374 1208 TVCABLE BOGOTA
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
31.24.0.0/21 16082 Spitfire Digital Networks Aut
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
41.57.192.0/18 22750 BCSNET
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 /9:10 /10:26 /11:72 /12:215
/13:446 /14:764 /15:1372 /16:11513 /17:5663 /18:9329
/19:18868 /20:24421 /21:24894 /22:33009 /23:31632 /24:181804
/25:1115 /26:1318 /27:692 /28:169 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3694 bellsouth.net, inc.
6478 1472 1518 AT&T Worldnet Services
18566 1413 1435 Covad Communications
4323 1407 2616 Time Warner Telecom
10620 1265 1374 TVCABLE BOGOTA
11492 1237 1280 Cable One
7011 1057 1160 Citizens Utilities
1785 1054 1784 PaeTec Communications, Inc.
19262 954 1843 Verizon Global Networks
6503 950 1166 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:218 2:54 4:13 5:1 8:335 12:2031
13:1 14:409 15:15 16:3 17:8 20:9
23:1 24:1490 27:587 32:60 33:4 34:2
37:1 38:706 40:101 41:2194 44:3 46:642
47:4 49:150 50:93 52:12 55:2 56:2
57:31 58:863 59:475 60:390 61:1109 62:1051
63:1939 64:3837 65:2360 66:4241 67:1766 68:1028
69:2922 70:737 71:405 72:2009 73:1 74:2343
75:292 76:346 77:871 78:709 79:447 80:1061
81:821 82:522 83:476 84:632 85:1045 86:558
87:749 88:354 89:1575 90:156 91:3519 92:491
93:1040 94:1205 95:771 96:453 97:251 98:826
99:33 101:31 107:3 108:88 109:932 110:482
111:706 112:311 113:370 114:500 115:654 116:930
117:680 118:676 119:1024 120:242 121:698 122:1622
123:1049 124:1291 125:1259 128:266 129:156 130:170
131:564 132:109 133:20 134:220 135:49 136:215
137:147 138:293 139:119 140:489 141:203 142:359
143:382 144:486 145:51 146:437 147:202 148:637
149:266 150:161 151:229 152:298 153:179 154:3
155:350 156:176 157:342 158:130 159:380 160:313
161:209 162:274 163:157 164:484 165:336 166:502
167:421 168:743 169:150 170:755 171:69 172:25
173:1318 174:533 175:320 176:1 177:13 178:791
180:812 182:361 183:248 184:213 186:1010 187:807
188:891 189:1068 190:4392 192:5805 193:4795 194:3514
195:2951 196:1191 197:3 198:3570 199:3834 200:5596
201:1576 202:8287 203:8446 204:4097 205:2338 206:2645
207:3083 208:3906 209:3498 210:2639 211:1342 212:1928
213:1734 214:768 215:62 216:4864 217:1636 218:545
219:376 220:1201 221:452 222:312 223:97
End of report
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