Routing Table Report 04:00 +10GMT Wed 06 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362475
Prefixes after maximum aggregation: 164751
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179702
Total ASes present in the Internet Routing Table: 38094
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31684
Origin ASes announcing only one prefix: 15230
Transit ASes present in the Internet Routing Table: 5184
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 896
Unregistered ASNs in the Routing Table: 493
Number of 32-bit ASNs allocated by the RIRs: 1522
Number of 32-bit ASNs visible in the Routing Table: 1226
Prefixes from 32-bit ASNs in the Routing Table: 2829
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 137
Number of addresses announced to Internet: 2493319872
Equivalent to 148 /8s, 157 /16s and 10 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 151147
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90059
Total APNIC prefixes after maximum aggregation: 30180
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86800
Unique aggregates announced from the APNIC address blocks: 36860
APNIC Region origin ASes present in the Internet Routing Table: 4501
APNIC Prefixes per ASN: 19.28
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 714
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: 55
Number of APNIC addresses announced to Internet: 621380384
Equivalent to 37 /8s, 9 /16s and 131 /24s
Percentage of available APNIC address space announced: 78.8
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: 141326
Total ARIN prefixes after maximum aggregation: 72821
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113304
Unique aggregates announced from the ARIN address blocks: 46648
ARIN Region origin ASes present in the Internet Routing Table: 14460
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5523
ARIN Region transit ASes present in the Internet Routing Table: 1516
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819624832
Equivalent to 48 /8s, 218 /16s and 123 /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: 86400
Total RIPE prefixes after maximum aggregation: 49077
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79819
Unique aggregates announced from the RIPE address blocks: 52754
RIPE Region origin ASes present in the Internet Routing Table: 15778
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7867
RIPE Region transit ASes present in the Internet Routing Table: 2505
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: 903
Number of RIPE addresses announced to Internet: 478838784
Equivalent to 28 /8s, 138 /16s and 128 /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: 33437
Total LACNIC prefixes after maximum aggregation: 7584
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32520
Unique aggregates announced from the LACNIC address blocks: 16924
LACNIC Region origin ASes present in the Internet Routing Table: 1475
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 251
Number of LACNIC addresses announced to Internet: 85765120
Equivalent to 5 /8s, 28 /16s and 172 /24s
Percentage of available LACNIC address space announced: 56.8
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: 8214
Total AfriNIC prefixes after maximum aggregation: 1951
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6491
Unique aggregates announced from the AfriNIC address blocks: 1975
AfriNIC Region origin ASes present in the Internet Routing Table: 472
AfriNIC Prefixes per ASN: 13.75
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 4
Number of AfriNIC addresses announced to Internet: 24307712
Equivalent to 1 /8s, 114 /16s and 232 /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 2460 9499 927 Korea Telecom (KIX)
17974 1837 460 43 PT TELEKOMUNIKASI INDONESIA
7545 1543 301 85 TPG Internet Pty Ltd
4755 1490 635 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1098 914 45 BSNL National Internet Backbo
9583 1056 77 503 Sify Limited
4808 1049 2092 299 CNCGROUP IP network: China169
17488 962 186 103 Hathway IP Over Cable Interne
18101 931 116 139 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 3613 3818 249 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1802 681 122 PaeTec Communications, Inc.
4323 1653 1082 400 Time Warner Telecom
20115 1595 1533 634 Charter Communications
19262 1450 4806 371 Verizon Global Networks
7018 1365 7069 891 AT&T WorldNet Services
22773 1349 2897 88 Cox Communications, Inc.
6478 1340 248 614 AT&T Worldnet Services
2386 1253 520 903 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
34984 537 106 182 BILISIM TELEKOM
6830 513 1780 318 UPC Distribution Services
3292 467 2077 402 TDC Tele Danmark
20940 467 137 360 Akamai Technologies European
8866 450 134 26 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
12479 438 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
35819 398 78 9 Bayanat Al-Oula Autonomous Sy
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 1541 282 157 TVCABLE BOGOTA
8151 1424 2742 356 UniNet S.A. de C.V.
28573 1280 996 80 NET Servicos de Comunicao S.A
7303 1003 509 176 Telecom Argentina Stet-France
6503 747 354 74 AVANTEL, S.A.
14420 688 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 529 229 96 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 507 53 53 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 795 445 11 TEDATA
24863 790 147 37 LINKdotNET AS number
15475 524 74 8 Nile Online
36992 315 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 219 12 8 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 3613 3818 249 bellsouth.net, inc.
23456 2829 692 1521 32-bit ASN transition
4766 2460 9499 927 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
17974 1837 460 43 PT TELEKOMUNIKASI INDONESIA
1785 1802 681 122 PaeTec Communications, Inc.
4323 1653 1082 400 Time Warner Telecom
20115 1595 1533 634 Charter Communications
7545 1543 301 85 TPG Internet Pty Ltd
10620 1541 282 157 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 1837 1794 PT TELEKOMUNIKASI INDONESIA
1785 1802 1680 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2460 1533 Korea Telecom (KIX)
7545 1543 1458 TPG Internet Pty Ltd
10620 1541 1384 TVCABLE BOGOTA
4755 1490 1322 TATA Communications formerly
23456 2829 1308 32-bit ASN transition
22773 1349 1261 Cox Communications, Inc.
4323 1653 1253 Time Warner Telecom
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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:465 /14:802 /15:1396 /16:11991 /17:5886 /18:9804
/19:19453 /20:25816 /21:26136 /22:34599 /23:33577 /24:188853
/25:1085 /26:1267 /27:745 /28:209 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2224 3613 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1436 1541 TVCABLE BOGOTA
23456 1396 2829 32-bit ASN transition
6478 1311 1340 AT&T Worldnet Services
11492 1094 1140 Cable One
7011 1055 1156 Citizens Utilities
1785 1052 1802 PaeTec Communications, Inc.
7029 955 1180 Windstream Communications Inc
22773 863 1349 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:322 2:48 4:16 5:1 6:3 8:337
12:1976 13:1 14:473 15:15 16:3 17:8
20:10 23:13 24:1667 27:810 31:489 32:64
33:4 34:2 36:4 38:743 39:3 40:103
41:2564 42:31 44:3 46:1033 47:3 49:193
50:436 52:13 54:2 55:4 56:2 57:33
58:860 59:477 60:386 61:1174 62:1021 63:1936
64:3944 65:2303 66:3877 67:1898 68:1091 69:3032
70:757 71:389 72:1891 74:2383 75:310 76:341
77:886 78:713 79:461 80:1115 81:836 82:500
83:456 84:690 85:1076 86:552 87:759 88:336
89:1532 90:211 91:3931 92:539 93:1049 94:1337
95:852 96:445 97:255 98:874 99:36 101:77
103:105 106:10 107:20 108:71 109:1032 110:618
111:711 112:302 113:410 114:545 115:674 116:969
117:670 118:856 119:1155 120:311 121:673 122:1599
123:970 124:1301 125:1241 128:246 129:171 130:168
131:574 132:112 133:21 134:214 135:48 136:216
137:136 138:299 139:108 140:480 141:241 142:403
143:416 144:482 145:54 146:449 147:213 148:661
149:247 150:162 151:189 152:330 153:180 154:4
155:399 156:197 157:351 158:137 159:453 160:314
161:209 162:309 163:165 164:510 165:359 166:528
167:432 168:740 169:158 170:847 171:78 172:1
173:1632 174:615 175:380 176:142 177:155 178:998
180:880 181:21 182:488 183:217 184:326 185:1
186:1256 187:725 188:878 189:938 190:4935 192:5877
193:4969 194:3497 195:3029 196:1238 197:41 198:3571
199:3963 200:5527 201:1490 202:8396 203:8400 204:4221
205:2342 206:2678 207:2809 208:3941 209:3448 210:2689
211:1459 212:2098 213:1742 214:774 215:69 216:4934
217:1647 218:544 219:361 220:1203 221:492 222:361
223:182
End of report
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