Routing Table Report 04:00 +10GMT Sun 08 May, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 356692
Prefixes after maximum aggregation: 161230
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176104
Total ASes present in the Internet Routing Table: 37502
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31367
Origin ASes announcing only one prefix: 15098
Transit ASes present in the Internet Routing Table: 5081
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 597
Unregistered ASNs in the Routing Table: 302
Number of 32-bit ASNs allocated by the RIRs: 1335
Number of 32-bit ASNs visible in the Routing Table: 1054
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: 150
Number of addresses announced to Internet: 2423266240
Equivalent to 144 /8s, 112 /16s and 27 /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: 148228
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89237
Total APNIC prefixes after maximum aggregation: 29927
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 85614
Unique aggregates announced from the APNIC address blocks: 36842
APNIC Region origin ASes present in the Internet Routing Table: 4433
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 707
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: 612989728
Equivalent to 36 /8s, 137 /16s and 123 /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: 140349
Total ARIN prefixes after maximum aggregation: 71249
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112695
Unique aggregates announced from the ARIN address blocks: 45342
ARIN Region origin ASes present in the Internet Routing Table: 14360
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5494
ARIN Region transit ASes present in the Internet Routing Table: 1497
Average ARIN Region AS path length visible: 4.0
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: 800042496
Equivalent to 47 /8s, 175 /16s and 174 /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: 83966
Total RIPE prefixes after maximum aggregation: 48017
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 77413
Unique aggregates announced from the RIPE address blocks: 51237
RIPE Region origin ASes present in the Internet Routing Table: 15571
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7807
RIPE Region transit ASes present in the Internet Routing Table: 2450
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: 468185856
Equivalent to 27 /8s, 231 /16s and 243 /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: 32749
Total LACNIC prefixes after maximum aggregation: 7498
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31783
Unique aggregates announced from the LACNIC address blocks: 16622
LACNIC Region origin ASes present in the Internet Routing Table: 1447
LACNIC Prefixes per ASN: 21.96
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 269
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: 208
Number of LACNIC addresses announced to Internet: 83155712
Equivalent to 4 /8s, 244 /16s and 219 /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: 7789
Total AfriNIC prefixes after maximum aggregation: 1863
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6154
Unique aggregates announced from the AfriNIC address blocks: 1916
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.74
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: 4.7
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: 23046912
Equivalent to 1 /8s, 95 /16s and 171 /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 1805 515 29 PT TELEKOMUNIKASI INDONESIA
7545 1565 301 86 TPG Internet Pty Ltd
4755 1460 634 167 TATA Communications formerly
7552 1203 1064 7 Vietel Corporation
24560 1151 336 184 Bharti Airtel Ltd., Telemedia
9583 1057 77 492 Sify Limited
4808 1036 2087 294 CNCGROUP IP network: China169
9829 1034 872 54 BSNL National Internet Backbo
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 2582 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 1359 6927 887 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 443 133 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 287 331 17 Etisalat MISR
3741 266 985 226 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
33776 214 12 11 Starcomms Nigeria Limited
24835 209 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 2582 1088 399 Time Warner Telecom
4766 2451 9493 916 Korea Telecom (KIX)
23456 2385 670 1291 32-bit ASN transition
17974 1805 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 1565 301 86 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 2582 2183 Time Warner Telecom
17974 1805 1776 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 1565 1479 TPG Internet Pty Ltd
10620 1458 1303 TVCABLE BOGOTA
4755 1460 1293 TATA Communications formerly
11492 1262 1247 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
31.210.248.0/21 35706 Net at Once
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 NetworkTwo Communications Gro
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 /16:11687 /17:5752 /18:9694
/19:19279 /20:25597 /21:25757 /22:34017 /23:32774 /24:185885
/25:1098 /26:1272 /27:707 /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 1289 2582 Time Warner Telecom
11492 1211 1262 Cable One
23456 1183 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 2:56 4:14 5:1 6:3 8:353
12:1992 13:1 14:450 15:15 16:3 17:8
20:10 23:6 24:1627 27:735 31:304 32:60
33:3 34:2 37:1 38:764 40:101 41:2486
42:4 44:3 46:908 47:4 49:172 50:388
52:13 55:3 56:2 57:30 58:844 59:483
60:387 61:1245 62:995 63:1923 64:3926 65:2296
66:4317 67:1873 68:1080 69:2970 70:698 71:347
72:1884 73:1 74:2336 75:302 76:338 77:852
78:688 79:454 80:1080 81:812 82:494 83:446
84:631 85:1075 86:577 87:747 88:325 89:1590
90:192 91:3712 92:510 93:1062 94:1266 95:804
96:483 97:255 98:839 99:35 101:69 103:9
107:6 108:85 109:946 110:585 111:706 112:318
113:397 114:534 115:657 116:947 117:678 118:814
119:1139 120:305 121:673 122:1619 123:1080 124:1255
125:1221 128:259 129:163 130:165 131:562 132:109
133:19 134:218 135:49 136:214 137:143 138:302
139:112 140:479 141:239 142:400 143:399 144:486
145:50 146:436 147:206 148:595 149:243 150:171
151:187 152:310 153:179 154:3 155:395 156:189
157:352 158:130 159:383 160:315 161:205 162:278
163:164 164:498 165:349 166:513 167:426 168:717
169:153 170:785 171:76 172:1 173:1542 174:547
175:371 177:119 178:860 180:818 181:19 182:439
183:208 184:260 185:1 186:1154 187:795 188:846
189:939 190:4850 192:5790 193:4843 194:3466 195:2972
196:1202 197:16 198:3561 199:3921 200:5527 201:1506
202:8326 203:8431 204:4137 205:2324 206:2749 207:3039
208:3959 209:3479 210:2727 211:1372 212:1963 213:1724
214:726 215:65 216:4892 217:1661 218:565 219:371
220:1203 221:481 222:342 223:146
End of report
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