Routing Table Report 04:00 +10GMT Tue 21 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 360483
Prefixes after maximum aggregation: 163657
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178138
Total ASes present in the Internet Routing Table: 37910
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31611
Origin ASes announcing only one prefix: 15182
Transit ASes present in the Internet Routing Table: 5135
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 820
Unregistered ASNs in the Routing Table: 445
Number of 32-bit ASNs allocated by the RIRs: 1469
Number of 32-bit ASNs visible in the Routing Table: 1164
Prefixes from 32-bit ASNs in the Routing Table: 2688
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 138
Number of addresses announced to Internet: 2491539904
Equivalent to 148 /8s, 129 /16s and 225 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150065
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89686
Total APNIC prefixes after maximum aggregation: 30194
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86264
Unique aggregates announced from the APNIC address blocks: 36164
APNIC Region origin ASes present in the Internet Routing Table: 4487
APNIC Prefixes per ASN: 19.23
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 706
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: 49
Number of APNIC addresses announced to Internet: 622457632
Equivalent to 37 /8s, 25 /16s and 243 /24s
Percentage of available APNIC address space announced: 78.9
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: 140956
Total ARIN prefixes after maximum aggregation: 72098
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 112908
Unique aggregates announced from the ARIN address blocks: 46227
ARIN Region origin ASes present in the Internet Routing Table: 14441
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5519
ARIN Region transit ASes present in the Internet Routing Table: 1527
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 819089792
Equivalent to 48 /8s, 210 /16s and 81 /24s
Percentage of available ARIN address space announced: 65.1
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: 85602
Total RIPE prefixes after maximum aggregation: 48819
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 79033
Unique aggregates announced from the RIPE address blocks: 52460
RIPE Region origin ASes present in the Internet Routing Table: 15704
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7842
RIPE Region transit ASes present in the Internet Routing Table: 2468
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 855
Number of RIPE addresses announced to Internet: 477549056
Equivalent to 28 /8s, 118 /16s and 210 /24s
Percentage of available RIPE address space announced: 76.9
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: 33196
Total LACNIC prefixes after maximum aggregation: 7563
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32237
Unique aggregates announced from the LACNIC address blocks: 16874
LACNIC Region origin ASes present in the Internet Routing Table: 1467
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 435
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: 244
Number of LACNIC addresses announced to Internet: 84929792
Equivalent to 5 /8s, 15 /16s and 237 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8137
Total AfriNIC prefixes after maximum aggregation: 1972
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6431
Unique aggregates announced from the AfriNIC address blocks: 1983
AfriNIC Region origin ASes present in the Internet Routing Table: 464
AfriNIC Prefixes per ASN: 13.86
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 4
Number of AfriNIC addresses announced to Internet: 24283392
Equivalent to 1 /8s, 114 /16s and 137 /24s
Percentage of available AfriNIC address space announced: 36.2
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 2458 9500 926 Korea Telecom (KIX)
17974 1860 467 43 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 86 TPG Internet Pty Ltd
4755 1479 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
7552 1056 1064 7 Vietel Corporation
4808 1049 2090 300 CNCGROUP IP network: China169
9829 1046 883 59 BSNL National Internet Backbo
17488 949 182 100 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 3626 3819 250 bellsouth.net, inc.
18566 1913 365 237 Covad Communications
1785 1796 681 122 PaeTec Communications, Inc.
4323 1659 1081 397 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1523 1527 636 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1359 7054 889 AT&T WorldNet Services
22773 1339 2897 85 Cox Communications, Inc.
7029 1311 790 297 Alltel Information Services,
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
34984 524 107 182 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 465 136 357 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 398 1839 347 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 1529 280 157 TVCABLE BOGOTA
8151 1424 2729 364 UniNet S.A. de C.V.
28573 1229 992 77 NET Servicos de Comunicao S.A
7303 990 506 170 Telecom Argentina Stet-France
6503 742 354 74 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 VTR PUNTO NET S.A.
3816 529 229 99 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 500 53 52 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
24863 797 147 37 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 525 74 8 Nile Online
36992 304 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 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 3626 3819 250 bellsouth.net, inc.
23456 2688 666 1459 32-bit ASN transition
4766 2458 9500 926 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications
17974 1860 467 43 PT TELEKOMUNIKASI INDONESIA
1785 1796 681 122 PaeTec Communications, Inc.
4323 1659 1081 397 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
7545 1539 301 86 TPG Internet Pty Ltd
10620 1529 280 157 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1860 1817 PT TELEKOMUNIKASI INDONESIA
18566 1913 1676 Covad Communications
1785 1796 1674 PaeTec Communications, Inc.
4766 2458 1532 Korea Telecom (KIX)
7545 1539 1453 TPG Internet Pty Ltd
10620 1529 1372 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1479 1311 TATA Communications formerly
4323 1659 1262 Time Warner Telecom
22773 1339 1254 Cox Communications, Inc.
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
27.0.128.0/17 7514 Media Exchange, Inc.
31.132.80.0/20 50704 Benefic Consult SRL
31.132.192.0/21 50704 Benefic Consult SRL
41.190.32.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:461 /14:800 /15:1396 /16:11951 /17:5847 /18:9783
/19:19360 /20:25960 /21:25988 /22:34363 /23:33264 /24:187608
/25:1097 /26:1270 /27:731 /28:212 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 3626 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1529 TVCABLE BOGOTA
23456 1328 2688 32-bit ASN transition
11492 1090 1136 Cable One
7011 1060 1160 Citizens Utilities
7029 1057 1311 Alltel Information Services,
1785 1050 1796 PaeTec Communications, Inc.
22773 856 1339 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:288 2:45 4:16 5:1 6:3 8:336
12:1972 13:1 14:464 15:15 16:3 17:8
20:10 23:11 24:1652 27:789 31:448 32:64
33:4 34:2 37:1 38:735 40:103 41:2513
42:2 44:3 46:983 47:3 49:191 50:416
52:13 54:2 55:4 56:2 57:32 58:843
59:473 60:386 61:1181 62:1048 63:1937 64:3940
65:2275 66:3860 67:1891 68:1090 69:3043 70:714
71:376 72:1886 74:2376 75:318 76:339 77:882
78:701 79:439 80:1094 81:836 82:491 83:456
84:656 85:1075 86:550 87:756 88:333 89:1530
90:208 91:3851 92:525 93:1044 94:1279 95:840
96:446 97:249 98:878 99:36 101:74 103:85
106:10 107:14 108:71 109:995 110:606 111:707
112:299 113:406 114:541 115:669 116:968 117:675
118:835 119:1160 120:309 121:669 122:1629 123:953
124:1268 125:1241 128:247 129:172 130:165 131:578
132:111 133:21 134:214 135:48 136:216 137:138
138:300 139:114 140:480 141:238 142:403 143:409
144:490 145:54 146:449 147:211 148:662 149:247
150:172 151:190 152:332 153:180 154:4 155:398
156:195 157:352 158:138 159:390 160:316 161:208
162:312 163:162 164:503 165:352 166:534 167:425
168:740 169:156 170:837 171:77 172:1 173:1622
174:571 175:373 176:135 177:162 178:998 180:891
181:19 182:482 183:223 184:302 185:1 186:1243
187:723 188:861 189:903 190:4889 192:5861 193:4954
194:3493 195:3033 196:1224 197:40 198:3597 199:3949
200:5518 201:1500 202:8335 203:8403 204:4190 205:2340
206:2683 207:2817 208:3936 209:3461 210:2709 211:1431
212:2089 213:1728 214:771 215:67 216:4925 217:1639
218:547 219:364 220:1203 221:491 222:361 223:160
End of report
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