Routing Table Report 04:00 +10GMT Mon 09 May, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 356524
Prefixes after maximum aggregation: 161247
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176062
Total ASes present in the Internet Routing Table: 37487
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31367
Origin ASes announcing only one prefix: 15091
Transit ASes present in the Internet Routing Table: 5064
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 593
Unregistered ASNs in the Routing Table: 300
Number of 32-bit ASNs allocated by the RIRs: 1337
Number of 32-bit ASNs visible in the Routing Table: 1056
Prefixes from 32-bit ASNs in the Routing Table: 2385
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 149
Number of addresses announced to Internet: 2423621056
Equivalent to 144 /8s, 117 /16s and 133 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 148138
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89141
Total APNIC prefixes after maximum aggregation: 29899
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 85521
Unique aggregates announced from the APNIC address blocks: 36829
APNIC Region origin ASes present in the Internet Routing Table: 4431
APNIC Prefixes per ASN: 19.30
APNIC Region origin ASes announcing only one prefix: 1232
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 612958240
Equivalent to 36 /8s, 137 /16s and 0 /24s
Percentage of available APNIC address space announced: 77.7
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: 140391
Total ARIN prefixes after maximum aggregation: 71286
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112700
Unique aggregates announced from the ARIN address blocks: 45348
ARIN Region origin ASes present in the Internet Routing Table: 14362
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5498
ARIN Region transit ASes present in the Internet Routing Table: 1495
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 800069888
Equivalent to 47 /8s, 176 /16s and 25 /24s
Percentage of available ARIN address space announced: 63.6
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: 83845
Total RIPE prefixes after maximum aggregation: 48005
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 77301
Unique aggregates announced from the RIPE address blocks: 51181
RIPE Region origin ASes present in the Internet Routing Table: 15551
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7795
RIPE Region transit ASes present in the Internet Routing Table: 2444
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 781
Number of RIPE addresses announced to Internet: 468142080
Equivalent to 27 /8s, 231 /16s and 72 /24s
Percentage of available RIPE address space announced: 75.4
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: 32760
Total LACNIC prefixes after maximum aggregation: 7509
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31790
Unique aggregates announced from the LACNIC address blocks: 16619
LACNIC Region origin ASes present in the Internet Routing Table: 1450
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 210
Number of LACNIC addresses announced to Internet: 83169024
Equivalent to 4 /8s, 245 /16s and 15 /24s
Percentage of available LACNIC address space announced: 55.1
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: 7786
Total AfriNIC prefixes after maximum aggregation: 1868
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6149
Unique aggregates announced from the AfriNIC address blocks: 1919
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23047168
Equivalent to 1 /8s, 95 /16s and 172 /24s
Percentage of available AfriNIC address space announced: 34.3
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 2451 9493 916 Korea Telecom (KIX)
17974 1803 515 29 PT TELEKOMUNIKASI INDONESIA
7545 1567 301 87 TPG Internet Pty Ltd
4755 1461 634 167 TATA Communications formerly
24560 1151 336 184 Bharti Airtel Ltd., Telemedia
7552 1108 1064 7 Vietel Corporation
9583 1057 77 492 Sify Limited
9829 1039 874 51 BSNL National Internet Backbo
4808 1036 2087 294 CNCGROUP IP network: China169
17488 938 164 100 Hathway IP Over Cable Interne
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 3647 3822 255 bellsouth.net, inc.
4323 2563 1088 399 Time Warner Telecom
1785 1785 681 127 PaeTec Communications, Inc.
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
20115 1531 1536 636 Charter Communications
19262 1496 4949 298 Verizon Global Networks
7018 1358 6927 886 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
2386 1264 536 907 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 519 1780 321 UPC Distribution Services
34984 508 106 184 BILISIM TELEKOM
3292 457 1997 391 TDC Tele Danmark
20940 446 131 342 Akamai Technologies European
8866 444 134 26 Bulgarian Telecommunication C
29049 443 33 43 AzerSat LLC.
3320 423 7609 368 Deutsche Telekom AG
12479 418 577 6 Uni2 Autonomous System
8551 406 355 45 Bezeq International
702 397 1802 310 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 1458 270 155 TVCABLE BOGOTA
8151 1366 2700 363 UniNet S.A. de C.V.
28573 1298 990 89 NET Servicos de Comunicao S.A
7303 929 470 150 Telecom Argentina Stet-France
6503 801 354 73 AVANTEL, S.A.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 557 310 15 VTR PUNTO NET S.A.
3816 518 226 99 Empresa Nacional de Telecomun
11172 495 84 83 Servicios Alestra S.A de C.V
13489 487 233 116 Orbitel S.A. E.S.P.
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 881 445 11 TEDATA
24863 782 147 37 LINKdotNET AS number
15475 421 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 218 12 10 Starcomms Nigeria Limited
24835 207 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 149 441 86 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 3647 3822 255 bellsouth.net, inc.
4323 2563 1088 399 Time Warner Telecom
4766 2451 9493 916 Korea Telecom (KIX)
23456 2385 672 1293 32-bit ASN transition
17974 1803 515 29 PT TELEKOMUNIKASI INDONESIA
1785 1785 681 127 PaeTec Communications, Inc.
18566 1782 354 219 Covad Communications
6478 1668 313 51 AT&T Worldnet Services
7545 1567 301 87 TPG Internet Pty Ltd
20115 1531 1536 636 Charter Communications
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 2563 2164 Time Warner Telecom
17974 1803 1774 PT TELEKOMUNIKASI INDONESIA
1785 1785 1658 PaeTec Communications, Inc.
6478 1668 1617 AT&T Worldnet Services
18566 1782 1563 Covad Communications
4766 2451 1535 Korea Telecom (KIX)
7545 1567 1480 TPG Internet Pty Ltd
10620 1458 1303 TVCABLE BOGOTA
4755 1461 1294 TATA Communications formerly
11492 1264 1249 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
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
23502 UNALLOCATED 12.44.44.0/24 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 NetworkTwo Communications Gro
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:12 /10:28 /11:78 /12:223
/13:458 /14:790 /15:1390 /16:11697 /17:5754 /18:9697
/19:19276 /20:25500 /21:25750 /22:34011 /23:32764 /24:185829
/25:1097 /26:1270 /27:706 /28:158 /29:8 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2248 3647 bellsouth.net, inc.
18566 1744 1782 Covad Communications
6478 1622 1668 AT&T Worldnet Services
10620 1348 1458 TVCABLE BOGOTA
4323 1272 2563 Time Warner Telecom
11492 1213 1264 Cable One
23456 1179 2385 32-bit ASN transition
7011 1062 1162 Citizens Utilities
1785 1054 1785 PaeTec Communications, Inc.
22773 846 1329 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:265 2:54 4:14 5:1 6:3 8:353
12:1989 13:1 14:451 15:15 16:3 17:8
20:10 23:6 24:1628 27:736 31:304 32:60
33:3 34:2 37:1 38:764 40:101 41:2485
42:4 44:3 46:908 47:4 49:172 50:388
52:13 55:3 56:2 57:30 58:845 59:482
60:387 61:1253 62:992 63:1923 64:3925 65:2306
66:4305 67:1872 68:1080 69:2969 70:699 71:347
72:1884 73:1 74:2339 75:302 76:338 77:852
78:688 79:452 80:1063 81:811 82:492 83:448
84:631 85:1072 86:577 87:746 88:325 89:1595
90:192 91:3700 92:510 93:1048 94:1259 95:805
96:483 97:255 98:837 99:35 101:68 103:9
107:6 108:85 109:945 110:585 111:706 112:318
113:399 114:534 115:658 116:951 117:678 118:817
119:1133 120:305 121:673 122:1621 123:1080 124:1254
125:1221 128:259 129:163 130:165 131:568 132:110
133:19 134:218 135:49 136:214 137:143 138:302
139:113 140:480 141:239 142:401 143:400 144:483
145:50 146:440 147:206 148:594 149:243 150:171
151:187 152:310 153:179 154:3 155:396 156:189
157:352 158:130 159:384 160:315 161:205 162:279
163:164 164:496 165:351 166:513 167:426 168:718
169:153 170:790 171:76 172:1 173:1542 174:550
175:371 177:119 178:833 180:818 181:19 182:439
183:208 184:260 185:1 186:1146 187:782 188:848
189:943 190:4856 192:5791 193:4836 194:3467 195:2967
196:1202 197:16 198:3560 199:3925 200:5529 201:1506
202:8318 203:8428 204:4143 205:2327 206:2754 207:3033
208:3965 209:3479 210:2726 211:1373 212:1974 213:1723
214:732 215:68 216:4883 217:1660 218:565 219:371
220:1203 221:480 222:342 223:146
End of report
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