Routing Table Report 04:00 +10GMT Mon 04 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362473
Prefixes after maximum aggregation: 164776
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179771
Total ASes present in the Internet Routing Table: 38066
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31670
Origin ASes announcing only one prefix: 15225
Transit ASes present in the Internet Routing Table: 5174
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: 880
Unregistered ASNs in the Routing Table: 487
Number of 32-bit ASNs allocated by the RIRs: 1521
Number of 32-bit ASNs visible in the Routing Table: 1222
Prefixes from 32-bit ASNs in the Routing Table: 2791
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 132
Number of addresses announced to Internet: 2492742208
Equivalent to 148 /8s, 148 /16s and 58 /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: 151102
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90051
Total APNIC prefixes after maximum aggregation: 30229
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 86808
Unique aggregates announced from the APNIC address blocks: 37046
APNIC Region origin ASes present in the Internet Routing Table: 4496
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 711
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: 621137056
Equivalent to 37 /8s, 5 /16s and 204 /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: 141479
Total ARIN prefixes after maximum aggregation: 72860
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113441
Unique aggregates announced from the ARIN address blocks: 46634
ARIN Region origin ASes present in the Internet Routing Table: 14464
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5532
ARIN Region transit ASes present in the Internet Routing Table: 1517
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: 819628160
Equivalent to 48 /8s, 218 /16s and 136 /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: 86334
Total RIPE prefixes after maximum aggregation: 49046
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79761
Unique aggregates announced from the RIPE address blocks: 52669
RIPE Region origin ASes present in the Internet Routing Table: 15766
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: 2499
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: 899
Number of RIPE addresses announced to Internet: 478764032
Equivalent to 28 /8s, 137 /16s and 92 /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: 33425
Total LACNIC prefixes after maximum aggregation: 7567
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32513
Unique aggregates announced from the LACNIC address blocks: 16946
LACNIC Region origin ASes present in the Internet Routing Table: 1472
LACNIC Prefixes per ASN: 22.09
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 270
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: 85691392
Equivalent to 5 /8s, 27 /16s and 140 /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: 8180
Total AfriNIC prefixes after maximum aggregation: 1952
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6468
Unique aggregates announced from the AfriNIC address blocks: 1964
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.97
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 24262144
Equivalent to 1 /8s, 114 /16s and 54 /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 1825 461 42 PT TELEKOMUNIKASI INDONESIA
7545 1542 301 84 TPG Internet Pty Ltd
4755 1477 631 163 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1098 914 45 BSNL National Internet Backbo
9583 1056 78 506 Sify Limited
4808 1050 2091 298 CNCGROUP IP network: China169
17488 958 186 104 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 1593 1532 636 Charter Communications
19262 1449 4806 370 Verizon Global Networks
7018 1364 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 535 106 185 BILISIM TELEKOM
6830 513 1780 318 UPC Distribution Services
3292 469 2080 404 TDC Tele Danmark
20940 467 137 360 Akamai Technologies European
8866 451 134 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 1417 2742 356 UniNet S.A. de C.V.
28573 1271 996 80 NET Servicos de Comunicao S.A
7303 1000 507 175 Telecom Argentina Stet-France
6503 746 354 74 AVANTEL, S.A.
14420 685 55 81 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 534 232 92 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 503 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
8452 795 445 11 TEDATA
24863 790 147 37 LINKdotNET AS number
15475 523 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 212 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 2791 691 1514 32-bit ASN transition
4766 2464 9500 931 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
17974 1825 461 42 PT TELEKOMUNIKASI INDONESIA
1785 1802 681 122 PaeTec Communications, Inc.
4323 1658 1082 400 Time Warner Telecom
20115 1593 1532 636 Charter Communications
7545 1542 301 84 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 1825 1783 PT TELEKOMUNIKASI INDONESIA
1785 1802 1680 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2464 1533 Korea Telecom (KIX)
7545 1542 1458 TPG Internet Pty Ltd
10620 1541 1384 TVCABLE BOGOTA
4755 1477 1314 TATA Communications formerly
23456 2791 1277 32-bit ASN transition
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 /14:801 /15:1396 /16:11979 /17:5874 /18:9805
/19:19460 /20:25880 /21:26171 /22:34640 /23:33574 /24:188737
/25:1089 /26:1268 /27:746 /28:202 /29:8 /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 1374 2791 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 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)
----------------------------------------------
1:320 2:48 4:16 5:1 6:3 8:336
12:1976 13:1 14:470 15:15 16:3 17:8
20:10 23:13 24:1666 27:814 31:489 32:64
33:4 34:2 36:4 37:1 38:744 39:3
40:103 41:2547 42:31 44:3 46:997 47:3
49:196 50:435 52:13 54:2 55:4 56:2
57:33 58:859 59:477 60:386 61:1169 62:1027
63:1936 64:3944 65:2292 66:3869 67:1898 68:1091
69:3036 70:758 71:389 72:1891 74:2377 75:313
76:341 77:886 78:714 79:460 80:1113 81:846
82:502 83:457 84:686 85:1076 86:552 87:759
88:336 89:1530 90:211 91:3931 92:536 93:1055
94:1325 95:852 96:446 97:255 98:892 99:36
101:77 103:100 106:10 107:19 108:71 109:1019
110:608 111:712 112:303 113:408 114:544 115:668
116:969 117:669 118:853 119:1155 120:309 121:669
122:1603 123:970 124:1298 125:1238 128:246 129:173
130:168 131:573 132:112 133:21 134:214 135:48
136:201 137:136 138:299 139:115 140:480 141:241
142:403 143:415 144:484 145:54 146:449 147:213
148:655 149:247 150:163 151:189 152:330 153:180
154:4 155:399 156:198 157:351 158:136 159:451
160:314 161:210 162:309 163:165 164:510 165:359
166:528 167:432 168:740 169:158 170:847 171:78
172:1 173:1634 174:615 175:376 176:141 177:146
178:994 180:879 181:21 182:486 183:223 184:326
185:1 186:1260 187:727 188:872 189:943 190:4936
192:5893 193:4968 194:3496 195:3026 196:1216 197:41
198:3569 199:3960 200:5518 201:1497 202:8374 203:8413
204:4220 205:2356 206:2678 207:2811 208:3963 209:3450
210:2694 211:1454 212:2101 213:1745 214:768 215:69
216:4930 217:1644 218:544 219:361 220:1204 221:492
222:361 223:181
End of report
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