Routing Table Report 08:00 +10GMT Fri 15 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358447
Prefixes after maximum aggregation: 163263
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180544
Total ASes present in the Internet Routing Table: 36781
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 31727
Origin ASes announcing only one prefix: 15278
Transit ASes present in the Internet Routing Table: 5054
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 2329
Unregistered ASNs in the Routing Table: 615
Number of 32-bit ASNs allocated by the RIRs: 1551
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2903
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2493544960
Equivalent to 148 /8s, 160 /16s and 122 /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: 91.1
Total number of prefixes smaller than registry allocations: 148169
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85989
Total APNIC prefixes after maximum aggregation: 28945
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 83672
Unique aggregates announced from the APNIC address blocks: 37436
APNIC Region origin ASes present in the Internet Routing Table: 4463
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 619936512
Equivalent to 36 /8s, 243 /16s and 123 /24s
Percentage of available APNIC address space announced: 78.6
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: 140650
Total ARIN prefixes after maximum aggregation: 72410
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112900
Unique aggregates announced from the ARIN address blocks: 46670
ARIN Region origin ASes present in the Internet Routing Table: 14401
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5520
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803089152
Equivalent to 47 /8s, 222 /16s and 43 /24s
Percentage of available ARIN address space announced: 63.8
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: 87045
Total RIPE prefixes after maximum aggregation: 49217
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80377
Unique aggregates announced from the RIPE address blocks: 52877
RIPE Region origin ASes present in the Internet Routing Table: 15806
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7894
RIPE Region transit ASes present in the Internet Routing Table: 2478
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 479260416
Equivalent to 28 /8s, 144 /16s and 239 /24s
Percentage of available RIPE address space announced: 77.2
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: 32784
Total LACNIC prefixes after maximum aggregation: 7470
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32286
Unique aggregates announced from the LACNIC address blocks: 17031
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 21.96
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 85926144
Equivalent to 5 /8s, 31 /16s and 33 /24s
Percentage of available LACNIC address space announced: 56.9
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: 8350
Total AfriNIC prefixes after maximum aggregation: 2019
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6497
Unique aggregates announced from the AfriNIC address blocks: 1995
AfriNIC Region origin ASes present in the Internet Routing Table: 470
AfriNIC Prefixes per ASN: 13.82
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24385024
Equivalent to 1 /8s, 116 /16s and 22 /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 1910 11036 633 Korea Telecom (KIX)
7545 1553 301 85 TPG Internet Pty Ltd
17974 1537 456 45 PT Telekomunikasi Indonesia
4755 1499 375 167 TATA Communications formerly
24560 1154 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 National Internet Backbone
9583 1064 78 504 Sify Limited
17488 963 186 109 Hathway IP Over Cable Interne
4808 946 2003 274 CNCGROUP IP network China169
18101 933 116 139 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3593 3818 241 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1808 681 122 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1594 1534 627 Charter Communications
19262 1427 4784 392 Verizon Online LLC
7029 1387 1031 209 Windstream Communications Inc
7018 1381 7102 906 AT&T Services, Inc.
22773 1350 2897 88 Cox Communications Inc.
2386 1260 521 905 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 540 326 31 Goldenlines main autonomous s
34984 536 106 184 BILISIM TELEKOM
6830 510 1780 316 UPC Broadband
3292 467 2077 402 TDC Data Networks
20940 459 131 355 Akamai Technologies European
12479 457 593 7 France Telecom Espana SA
8866 449 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 Deutsche Telekom AG
8551 405 355 38 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1543 282 158 Types of queries are: POCs, o
28573 1263 995 78 Types of queries are: POCs, o
8151 1252 2728 351 Uninet S.A. de C.V.
7303 986 511 165 Telecom Argentina S.A.
6503 737 354 74 Axtel, S.A.B. de C.V.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 534 230 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 498 54 48 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 792 147 34 LINKdotNET AS number
8452 778 445 11 TEDATA
15475 513 74 8 Nile Online
36992 314 415 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 87 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3593 3818 241 BellSouth.net Inc.
23456 2903 703 1554 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1910 11036 633 Korea Telecom (KIX)
1785 1808 681 122 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1594 1534 627 Charter Communications
7545 1553 301 85 TPG Internet Pty Ltd
10620 1543 282 158 Types of queries are: POCs, o
17974 1537 456 45 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1808 1686 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1537 1492 PT Telekomunikasi Indonesia
7545 1553 1468 TPG Internet Pty Ltd
10620 1543 1385 Types of queries are: POCs, o
23456 2903 1349 32-bit ASN transition
4755 1499 1332 TATA Communications formerly
4766 1910 1277 Korea Telecom (KIX)
22773 1350 1262 Cox Communications Inc.
4323 1657 1256 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
Complete listing at http://thyme.rand.apnic.net/london/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 /8:21 /9:12 /10:26 /11:80 /12:232
/13:464 /14:794 /15:1396 /16:11965 /17:5856 /18:9759
/19:19591 /20:25909 /21:26130 /22:34563 /23:33675 /24:187474
/25:13 /26:20 /27:24 /28:158 /29:103 /30:58
/31:0 /32:124
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2209 3593 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1438 1543 Types of queries are: POCs, o
23456 1421 2903 32-bit ASN transition
11492 1094 1140 CABLE ONE, INC.
7029 1067 1387 Windstream Communications Inc
7011 1055 1157 Frontier Communications of Am
6478 1054 1083 AT&T Services, Inc.
1785 1053 1808 PaeTec Communications, Inc.
22773 864 1350 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:324 2:41 4:16 5:1 6:3 8:337
12:1966 13:1 14:480 15:15 16:3 17:5
20:11 23:14 24:1686 27:815 31:500 32:59
33:4 34:2 36:4 38:741 40:103 41:2554
42:32 44:3 46:1034 47:3 49:200 50:469
52:13 54:2 55:6 56:2 57:33 58:818
59:473 60:384 61:1017 62:1038 63:1929 64:3929
65:2297 66:3880 67:1873 68:1096 69:3047 70:751
71:389 72:1887 74:2380 75:316 76:340 77:885
78:710 79:466 80:1112 81:844 82:502 83:456
84:691 85:1067 86:522 87:764 88:337 89:1535
90:224 91:3961 92:523 93:1053 94:1341 95:856
96:413 97:258 98:890 99:37 101:72 103:132
106:10 107:22 108:70 109:1020 110:605 111:708
112:297 113:400 114:550 115:666 116:950 117:663
118:816 119:1154 120:313 121:652 122:1601 123:963
124:1268 125:1227 128:207 129:166 130:163 131:573
132:103 133:21 134:205 135:48 136:214 137:134
138:272 139:114 140:460 141:244 142:387 143:413
144:481 145:55 146:436 147:211 148:611 149:247
150:153 151:189 152:340 153:182 154:3 155:397
156:196 157:317 158:138 159:382 160:311 161:193
162:306 163:154 164:499 165:360 166:529 167:433
168:730 169:151 170:840 171:78 172:1 173:1617
174:609 175:359 176:143 177:170 178:1002 180:889
181:23 182:476 183:228 184:345 185:1 186:1282
187:730 188:896 189:943 190:4969 192:5846 193:4992
194:3523 195:3059 196:1246 197:43 198:3526 199:3927
200:5492 201:1482 202:8198 203:8356 204:4140 205:2307
206:2577 207:2737 208:3946 209:3422 210:2596 211:1443
212:2116 213:1774 214:776 215:69 216:4909 217:1632
218:532 219:345 220:1195 221:480 222:313 223:214
End of report
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