Routing Table Report 04:00 +10GMT Fri 08 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 362500
Prefixes after maximum aggregation: 164911
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 179906
Total ASes present in the Internet Routing Table: 38117
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31691
Origin ASes announcing only one prefix: 15248
Transit ASes present in the Internet Routing Table: 5195
Transit-only ASes present in the Internet Routing Table: 132
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: 914
Unregistered ASNs in the Routing Table: 504
Number of 32-bit ASNs allocated by the RIRs: 1527
Number of 32-bit ASNs visible in the Routing Table: 1231
Prefixes from 32-bit ASNs in the Routing Table: 2851
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2493365696
Equivalent to 148 /8s, 157 /16s and 189 /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: 151329
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89846
Total APNIC prefixes after maximum aggregation: 30245
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86586
Unique aggregates announced from the APNIC address blocks: 37015
APNIC Region origin ASes present in the Internet Routing Table: 4493
APNIC Prefixes per ASN: 19.27
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: 4.4
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: 621335584
Equivalent to 37 /8s, 8 /16s and 212 /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: 141456
Total ARIN prefixes after maximum aggregation: 72857
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113391
Unique aggregates announced from the ARIN address blocks: 46639
ARIN Region origin ASes present in the Internet Routing Table: 14466
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5530
ARIN Region transit ASes present in the Internet Routing Table: 1523
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: 819510656
Equivalent to 48 /8s, 216 /16s and 189 /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: 86495
Total RIPE prefixes after maximum aggregation: 49126
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79905
Unique aggregates announced from the RIPE address blocks: 52809
RIPE Region origin ASes present in the Internet Routing Table: 15794
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7876
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 908
Number of RIPE addresses announced to Internet: 478860544
Equivalent to 28 /8s, 138 /16s and 213 /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: 33463
Total LACNIC prefixes after maximum aggregation: 7572
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32595
Unique aggregates announced from the LACNIC address blocks: 16920
LACNIC Region origin ASes present in the Internet Routing Table: 1479
LACNIC Prefixes per ASN: 22.04
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 273
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: 85824256
Equivalent to 5 /8s, 29 /16s and 147 /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: 8174
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6444
Unique aggregates announced from the AfriNIC address blocks: 1999
AfriNIC Region origin ASes present in the Internet Routing Table: 472
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.9
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: 24335872
Equivalent to 1 /8s, 115 /16s and 86 /24s
Percentage of available AfriNIC address space announced: 36.3
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 2473 11044 938 Korea Telecom (KIX)
17974 1597 459 43 PT TELEKOMUNIKASI INDONESIA
7545 1548 301 85 TPG Internet Pty Ltd
4755 1494 635 171 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1105 922 46 BSNL National Internet Backbo
9583 1057 78 503 Sify Limited
4808 1047 2092 299 CNCGROUP IP network: China169
17488 964 186 105 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 3607 3819 244 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1804 681 122 PaeTec Communications, Inc.
4323 1656 1082 400 Time Warner Telecom
20115 1594 1532 636 Charter Communications
19262 1429 4778 392 Verizon Global Networks
7018 1365 7069 891 AT&T WorldNet Services
22773 1350 2897 88 Cox Communications, Inc.
6478 1344 249 616 AT&T Worldnet Services
7029 1288 791 301 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 536 106 184 BILISIM TELEKOM
6830 512 1780 317 UPC Distribution Services
3292 467 2077 402 TDC Tele Danmark
20940 459 132 354 Akamai Technologies European
12479 453 593 7 Uni2 Autonomous System
8866 447 133 25 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
35819 401 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 1542 282 158 TVCABLE BOGOTA
8151 1432 2742 357 UniNet S.A. de C.V.
28573 1270 995 77 NET Servicos de Comunicao S.A
7303 995 511 173 Telecom Argentina Stet-France
6503 749 354 74 AVANTEL, S.A.
14420 688 55 83 CORPORACION NACIONAL DE TELEC
22047 577 322 17 VTR PUNTO NET S.A.
3816 532 230 96 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 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 796 445 11 TEDATA
24863 790 147 37 LINKdotNET AS number
15475 514 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 227 13 5 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 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 3607 3819 244 bellsouth.net, inc.
23456 2851 697 1524 32-bit ASN transition
4766 2473 11044 938 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1804 681 122 PaeTec Communications, Inc.
4323 1656 1082 400 Time Warner Telecom
17974 1597 459 43 PT TELEKOMUNIKASI INDONESIA
20115 1594 1532 636 Charter Communications
7545 1548 301 85 TPG Internet Pty Ltd
10620 1542 282 158 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
1785 1804 1682 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
17974 1597 1554 PT TELEKOMUNIKASI INDONESIA
4766 2473 1535 Korea Telecom (KIX)
7545 1548 1463 TPG Internet Pty Ltd
10620 1542 1384 TVCABLE BOGOTA
23456 2851 1327 32-bit ASN transition
4755 1494 1323 TATA Communications formerly
22773 1350 1262 Cox Communications, Inc.
4323 1656 1256 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.
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /12:232
/13:468 /14:804 /15:1400 /16:11995 /17:5887 /18:9817
/19:19464 /20:25850 /21:26167 /22:34661 /23:33567 /24:188735
/25:1084 /26:1261 /27:735 /28:213 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2219 3607 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1437 1542 TVCABLE BOGOTA
23456 1406 2851 32-bit ASN transition
6478 1315 1344 AT&T Worldnet Services
11492 1096 1142 Cable One
7011 1054 1156 Citizens Utilities
1785 1053 1804 PaeTec Communications, Inc.
7029 1035 1288 Windstream Communications Inc
22773 864 1350 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:323 2:48 4:16 5:1 6:3 8:337
12:1973 13:1 14:479 15:15 16:3 17:5
20:10 23:13 24:1674 27:814 31:489 32:64
33:4 34:2 36:4 38:744 40:103 41:2512
42:32 44:3 46:1040 47:3 49:194 50:441
52:13 54:2 55:4 56:2 57:35 58:856
59:478 60:387 61:1113 62:1036 63:1934 64:3943
65:2295 66:3870 67:1897 68:1092 69:3044 70:758
71:389 72:1887 74:2385 75:316 76:341 77:887
78:712 79:461 80:1116 81:839 82:498 83:457
84:691 85:1072 86:554 87:761 88:335 89:1532
90:223 91:3943 92:536 93:1052 94:1337 95:855
96:445 97:256 98:890 99:36 101:77 103:108
106:10 107:19 108:70 109:1032 110:605 111:709
112:303 113:403 114:526 115:671 116:966 117:667
118:812 119:1156 120:309 121:673 122:1595 123:967
124:1295 125:1229 128:246 129:172 130:167 131:578
132:112 133:21 134:214 135:48 136:216 137:136
138:299 139:116 140:480 141:242 142:403 143:419
144:485 145:54 146:449 147:216 148:657 149:247
150:164 151:189 152:329 153:182 154:4 155:396
156:197 157:352 158:137 159:454 160:313 161:201
162:309 163:164 164:503 165:358 166:530 167:430
168:740 169:155 170:840 171:78 172:1 173:1640
174:609 175:381 176:141 177:163 178:991 180:879
181:21 182:488 183:222 184:325 185:1 186:1273
187:702 188:881 189:937 190:4952 192:5897 193:4967
194:3503 195:3028 196:1244 197:41 198:3573 199:3964
200:5540 201:1489 202:8368 203:8401 204:4219 205:2321
206:2677 207:2812 208:3964 209:3445 210:2699 211:1462
212:2091 213:1740 214:779 215:69 216:4937 217:1640
218:545 219:359 220:1201 221:492 222:361 223:181
End of report
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