Routing Table Report 08:00 +10GMT Thu 25 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 362862
Prefixes after maximum aggregation: 164846
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182859
Total ASes present in the Internet Routing Table: 37079
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 31997
Origin ASes announcing only one prefix: 15379
Transit ASes present in the Internet Routing Table: 5082
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2492
Unregistered ASNs in the Routing Table: 730
Number of 32-bit ASNs allocated by the RIRs: 1669
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3113
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2487327488
Equivalent to 148 /8s, 65 /16s and 155 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149860
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87913
Total APNIC prefixes after maximum aggregation: 29178
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85350
Unique aggregates announced from the APNIC address blocks: 37922
APNIC Region origin ASes present in the Internet Routing Table: 4494
APNIC Prefixes per ASN: 18.99
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 683
Average APNIC Region AS path length visible: 3.9
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: 623985408
Equivalent to 37 /8s, 49 /16s and 67 /24s
Percentage of available APNIC address space announced: 79.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 141274
Total ARIN prefixes after maximum aggregation: 72836
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113458
Unique aggregates announced from the ARIN address blocks: 47131
ARIN Region origin ASes present in the Internet Routing Table: 14542
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5605
ARIN Region transit ASes present in the Internet Routing Table: 1464
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803884544
Equivalent to 47 /8s, 234 /16s and 78 /24s
Percentage of available ARIN address space announced: 63.9
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: 88025
Total RIPE prefixes after maximum aggregation: 49735
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81191
Unique aggregates announced from the RIPE address blocks: 53512
RIPE Region origin ASes present in the Internet Routing Table: 15889
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7916
RIPE Region transit ASes present in the Internet Routing Table: 2495
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 487971328
Equivalent to 29 /8s, 21 /16s and 218 /24s
Percentage of available RIPE address space announced: 78.6
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: 33532
Total LACNIC prefixes after maximum aggregation: 7588
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32935
Unique aggregates announced from the LACNIC address blocks: 17421
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.09
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 263
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: 87762688
Equivalent to 5 /8s, 59 /16s and 39 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8311
Total AfriNIC prefixes after maximum aggregation: 2067
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 6415
Unique aggregates announced from the AfriNIC address blocks: 2072
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.3
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: 26872320
Equivalent to 1 /8s, 154 /16s and 10 /24s
Percentage of available AfriNIC address space announced: 40.0
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 1940 11038 645 Korea Telecom (KIX)
17974 1615 516 31 PT Telekomunikasi Indonesia
7545 1574 301 84 TPG Internet Pty Ltd
4755 1526 374 164 TATA Communications formerly
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1076 79 496 Sify Limited
17488 1021 192 146 Hathway IP Over Cable Interne
7552 1001 1062 11 Vietel Corporation
4808 949 2004 272 CNCGROUP IP network China169
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 3583 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1823 681 123 PaeTec Communications, Inc.
7029 1614 1033 209 Windstream Communications Inc
4323 1613 1101 396 tw telecom holdings, inc.
20115 1587 1538 632 Charter Communications
22773 1440 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1365 7085 895 AT&T Services, Inc.
2386 1228 516 889 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 538 107 181 BILISIM TELEKOM
6830 521 1810 321 UPC Broadband
20940 484 141 376 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
12479 457 593 7 France Telecom Espana SA
8866 456 133 26 Bulgarian Telecommunication C
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
8551 404 355 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 1609 296 159 Types of queries are: POCs, o
8151 1266 2753 352 Uninet S.A. de C.V.
28573 1262 996 67 Types of queries are: POCs, o
7303 1047 578 164 Telecom Argentina S.A.
14420 707 56 86 CORPORACION NACIONAL DE TELEC
6503 588 450 76 Axtel, S.A.B. de C.V.
22047 578 322 17 Types of queries are: POCs, o
27947 548 56 78 Telconet S.A
3816 534 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia 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 805 145 56 LINKdotNET AS number
8452 636 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 230 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 Vodacom Internet Company
24835 174 70 11 RAYA Telecom - Egypt
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 3583 3817 228 BellSouth.net Inc.
23456 3113 743 1678 32-bit ASN transition
4766 1940 11038 645 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1823 681 123 PaeTec Communications, Inc.
17974 1615 516 31 PT Telekomunikasi Indonesia
7029 1614 1033 209 Windstream Communications Inc
4323 1613 1101 396 tw telecom holdings, inc.
10620 1609 296 159 Types of queries are: POCs, o
20115 1587 1538 632 Charter Communications
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 1823 1700 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1615 1584 PT Telekomunikasi Indonesia
7545 1574 1490 TPG Internet Pty Ltd
10620 1609 1450 Types of queries are: POCs, o
23456 3113 1435 32-bit ASN transition
7029 1614 1405 Windstream Communications Inc
4755 1526 1362 TATA Communications formerly
22773 1440 1343 Cox Communications Inc.
4766 1940 1295 Korea Telecom (KIX)
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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:460 /14:796 /15:1415 /16:11907 /17:5911 /18:9927
/19:19654 /20:26532 /21:26567 /22:35410 /23:33999 /24:189399
/25:12 /26:20 /27:23 /28:154 /29:112 /30:59
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3583 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1525 3113 32-bit ASN transition
10620 1504 1609 Types of queries are: POCs, o
7029 1297 1614 Windstream Communications Inc
11492 1107 1153 CABLE ONE, INC.
7011 1056 1169 Frontier Communications of Am
1785 1053 1823 PaeTec Communications, Inc.
22773 934 1440 Cox Communications Inc.
30036 889 914 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:359 2:44 4:15 5:1 6:3 8:344
12:1957 13:1 14:507 15:15 16:3 17:5
20:10 23:31 24:1681 27:907 31:512 32:59
33:4 34:2 36:4 38:729 40:107 41:2445
42:50 44:3 46:1066 47:3 49:218 50:415
52:13 54:2 55:7 56:2 57:34 58:813
59:495 60:374 61:1015 62:1081 63:1923 64:3969
65:2302 66:3904 67:1926 68:1106 69:3111 70:775
71:373 72:1842 74:2433 75:328 76:337 77:858
78:707 79:482 80:1127 81:829 82:495 83:476
84:682 85:1081 86:500 87:843 88:339 89:1536
90:224 91:4043 92:526 93:1137 94:1349 95:875
96:413 97:267 98:927 99:37 101:74 103:237
106:79 107:35 108:75 109:1005 110:633 111:730
112:307 113:411 114:558 115:681 116:968 117:658
118:840 119:1180 120:330 121:661 122:1611 123:982
124:1281 125:1277 128:207 129:169 130:161 131:578
132:111 133:21 134:205 135:54 136:212 137:135
138:292 139:113 140:466 141:276 142:369 143:424
144:484 145:59 146:456 147:232 148:616 149:250
150:194 151:190 152:439 153:185 154:4 155:401
156:197 157:310 158:137 159:390 160:318 161:198
162:328 163:156 164:514 165:364 166:535 167:434
168:742 169:151 170:845 171:82 172:1 173:1645
174:624 175:384 176:157 177:229 178:1001 180:926
181:25 182:522 183:236 184:338 185:1 186:1368
187:677 188:937 189:854 190:5103 192:5882 193:4983
194:3508 195:3046 196:1239 197:144 198:3536 199:4013
200:5425 201:1510 202:8187 203:8361 204:4180 205:2306
206:2587 207:2738 208:3996 209:3392 210:2612 211:1453
212:2096 213:1766 214:766 215:70 216:4804 217:1613
218:541 219:349 220:1183 221:499 222:308 223:243
End of report
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