Routing Table Report 04:00 +10GMT Tue 05 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362560
Prefixes after maximum aggregation: 164846
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179939
Total ASes present in the Internet Routing Table: 38088
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31685
Origin ASes announcing only one prefix: 15232
Transit ASes present in the Internet Routing Table: 5179
Transit-only ASes present in the Internet Routing Table: 133
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: 887
Unregistered ASNs in the Routing Table: 491
Number of 32-bit ASNs allocated by the RIRs: 1521
Number of 32-bit ASNs visible in the Routing Table: 1224
Prefixes from 32-bit ASNs in the Routing Table: 2837
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 133
Number of addresses announced to Internet: 2493174624
Equivalent to 148 /8s, 154 /16s and 211 /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: 151157
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90085
Total APNIC prefixes after maximum aggregation: 30254
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86836
Unique aggregates announced from the APNIC address blocks: 37073
APNIC Region origin ASes present in the Internet Routing Table: 4500
APNIC Prefixes per ASN: 19.30
APNIC Region origin ASes announcing only one prefix: 1246
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: 53
Number of APNIC addresses announced to Internet: 621226912
Equivalent to 37 /8s, 7 /16s and 43 /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: 141473
Total ARIN prefixes after maximum aggregation: 72849
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113440
Unique aggregates announced from the ARIN address blocks: 46653
ARIN Region origin ASes present in the Internet Routing Table: 14463
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5526
ARIN Region transit ASes present in the Internet Routing Table: 1519
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: 819634304
Equivalent to 48 /8s, 218 /16s and 160 /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: 86380
Total RIPE prefixes after maximum aggregation: 49072
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79812
Unique aggregates announced from the RIPE address blocks: 52715
RIPE Region origin ASes present in the Internet Routing Table: 15774
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7869
RIPE Region transit ASes present in the Internet Routing Table: 2501
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: 901
Number of RIPE addresses announced to Internet: 478819328
Equivalent to 28 /8s, 138 /16s and 52 /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: 33442
Total LACNIC prefixes after maximum aggregation: 7581
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32542
Unique aggregates announced from the LACNIC address blocks: 16945
LACNIC Region origin ASes present in the Internet Routing Table: 1476
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 271
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: 253
Number of LACNIC addresses announced to Internet: 85768448
Equivalent to 5 /8s, 28 /16s and 185 /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: 8129
Total AfriNIC prefixes after maximum aggregation: 1961
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6387
Unique aggregates announced from the AfriNIC address blocks: 2000
AfriNIC Region origin ASes present in the Internet Routing Table: 468
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 100
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: 24272384
Equivalent to 1 /8s, 114 /16s and 94 /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 2464 9500 931 Korea Telecom (KIX)
17974 1835 460 43 PT TELEKOMUNIKASI INDONESIA
7545 1542 301 85 TPG Internet Pty Ltd
4755 1486 635 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1098 914 45 BSNL National Internet Backbo
9583 1057 78 503 Sify Limited
4808 1048 2091 298 CNCGROUP IP network: China169
17488 962 186 103 Hathway IP Over Cable Interne
18101 932 116 139 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 3617 3819 248 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1802 681 122 PaeTec Communications, Inc.
4323 1658 1082 400 Time Warner Telecom
20115 1594 1533 633 Charter Communications
19262 1449 4806 370 Verizon Global Networks
7018 1363 7069 890 AT&T WorldNet Services
22773 1348 2897 88 Cox Communications, Inc.
6478 1340 248 614 AT&T Worldnet Services
7029 1285 790 298 Windstream Communications Inc
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 469 2080 404 TDC Tele Danmark
20940 467 137 360 Akamai Technologies European
8866 450 134 26 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
12479 439 593 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 1421 2742 354 UniNet S.A. de C.V.
28573 1271 996 80 NET Servicos de Comunicao S.A
7303 1001 507 176 Telecom Argentina Stet-France
6503 747 354 74 AVANTEL, S.A.
14420 685 55 81 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 532 230 96 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 505 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 776 445 11 TEDATA
24863 729 147 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 3617 3819 248 bellsouth.net, inc.
23456 2837 693 1517 32-bit ASN transition
4766 2464 9500 931 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
17974 1835 460 43 PT TELEKOMUNIKASI INDONESIA
1785 1802 681 122 PaeTec Communications, Inc.
4323 1658 1082 400 Time Warner Telecom
20115 1594 1533 633 Charter Communications
7545 1542 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 1835 1792 PT TELEKOMUNIKASI INDONESIA
1785 1802 1680 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2464 1533 Korea Telecom (KIX)
7545 1542 1457 TPG Internet Pty Ltd
10620 1541 1384 TVCABLE BOGOTA
23456 2837 1320 32-bit ASN transition
4755 1486 1318 TATA Communications formerly
22773 1348 1260 Cox Communications, Inc.
4323 1658 1258 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
/13:461 /14:802 /15:1396 /16:11986 /17:5877 /18:9808
/19:19449 /20:25861 /21:26195 /22:34611 /23:33540 /24:188873
/25:1091 /26:1268 /27:745 /28:206 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2226 3617 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1436 1541 TVCABLE BOGOTA
23456 1396 2837 32-bit ASN transition
6478 1311 1340 AT&T Worldnet Services
11492 1092 1138 Cable One
7011 1055 1156 Citizens Utilities
1785 1052 1802 PaeTec Communications, Inc.
7029 1032 1285 Windstream Communications Inc
22773 862 1348 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 2:49 4:16 5:1 6:3 8:337
12:1975 13:1 14:472 15:15 16:3 17:8
20:10 23:13 24:1666 27:811 31:489 32:64
33:4 34:2 36:4 37:1 38:744 39:3
40:103 41:2533 42:31 44:3 46:1033 47:3
49:196 50:435 52:13 54:2 55:4 56:2
57:33 58:860 59:477 60:386 61:1175 62:1025
63:1936 64:3946 65:2303 66:3878 67:1896 68:1091
69:3033 70:757 71:389 72:1891 74:2384 75:313
76:341 77:886 78:713 79:460 80:1116 81:847
82:502 83:457 84:687 85:1071 86:552 87:759
88:336 89:1532 90:211 91:3929 92:538 93:1054
94:1336 95:854 96:446 97:255 98:891 99:36
101:77 103:104 106:10 107:19 108:71 109:1017
110:610 111:712 112:303 113:408 114:545 115:669
116:970 117:669 118:855 119:1152 120:308 121:670
122:1598 123:971 124:1300 125:1241 128:246 129:171
130:168 131:573 132:112 133:21 134:214 135:48
136:207 137:136 138:299 139:115 140:478 141:241
142:403 143:415 144:484 145:54 146:449 147:213
148:659 149:247 150:163 151:189 152:330 153:180
154:4 155:399 156:199 157:352 158:137 159:453
160:314 161:210 162:309 163:165 164:510 165:359
166:528 167:432 168:740 169:158 170:847 171:78
172:1 173:1633 174:615 175:378 176:143 177:163
178:996 180:880 181:21 182:487 183:223 184:326
185:1 186:1258 187:729 188:875 189:943 190:4934
192:5895 193:4969 194:3496 195:3030 196:1237 197:41
198:3571 199:3966 200:5520 201:1498 202:8388 203:8401
204:4223 205:2344 206:2678 207:2810 208:3966 209:3449
210:2694 211:1456 212:2101 213:1743 214:769 215:69
216:4933 217:1636 218:544 219:361 220:1204 221:492
222:361 223:181
End of report
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