Routing Table Report 08:00 +10GMT Fri 26 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 363058
Prefixes after maximum aggregation: 164894
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182942
Total ASes present in the Internet Routing Table: 37102
Prefixes per ASN: 9.79
Origin-only ASes present in the Internet Routing Table: 32008
Origin ASes announcing only one prefix: 15398
Transit ASes present in the Internet Routing Table: 5094
Transit-only ASes present in the Internet Routing Table: 136
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: 2528
Unregistered ASNs in the Routing Table: 738
Number of 32-bit ASNs allocated by the RIRs: 1674
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3117
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2488295168
Equivalent to 148 /8s, 80 /16s and 95 /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: 149930
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87896
Total APNIC prefixes after maximum aggregation: 29191
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85333
Unique aggregates announced from the APNIC address blocks: 37962
APNIC Region origin ASes present in the Internet Routing Table: 4493
APNIC Prefixes per ASN: 18.99
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 685
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: 624636160
Equivalent to 37 /8s, 59 /16s and 49 /24s
Percentage of available APNIC address space announced: 79.2
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: 141358
Total ARIN prefixes after maximum aggregation: 72841
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113541
Unique aggregates announced from the ARIN address blocks: 47081
ARIN Region origin ASes present in the Internet Routing Table: 14543
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5609
ARIN Region transit ASes present in the Internet Routing Table: 1468
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: 803981056
Equivalent to 47 /8s, 235 /16s and 199 /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: 88093
Total RIPE prefixes after maximum aggregation: 49745
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81259
Unique aggregates announced from the RIPE address blocks: 53568
RIPE Region origin ASes present in the Internet Routing Table: 15906
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7927
RIPE Region transit ASes present in the Internet Routing Table: 2500
Average RIPE Region AS path length visible: 3.6
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: 488158720
Equivalent to 29 /8s, 24 /16s and 182 /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: 33551
Total LACNIC prefixes after maximum aggregation: 7589
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 32983
Unique aggregates announced from the LACNIC address blocks: 17436
LACNIC Region origin ASes present in the Internet Routing Table: 1493
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: 262
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: 87789568
Equivalent to 5 /8s, 59 /16s and 144 /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: 8344
Total AfriNIC prefixes after maximum aggregation: 2073
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 6445
Unique aggregates announced from the AfriNIC address blocks: 2079
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 26880768
Equivalent to 1 /8s, 154 /16s and 43 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1941 11038 646 Korea Telecom (KIX)
17974 1613 516 31 PT Telekomunikasi Indonesia
7545 1574 301 83 TPG Internet Pty Ltd
4755 1527 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 1020 192 147 Hathway IP Over Cable Interne
7552 1005 1062 11 Vietel Corporation
18101 952 118 139 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 3582 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1825 681 123 PaeTec Communications, Inc.
4323 1612 1101 396 tw telecom holdings, inc.
7029 1597 1033 208 Windstream Communications Inc
20115 1587 1538 632 Charter Communications
22773 1441 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1354 7084 886 AT&T Services, Inc.
2386 1226 516 887 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 491 146 382 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
8866 458 133 26 Bulgarian Telecommunication C
12479 457 593 7 France Telecom Espana SA
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
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 1611 297 155 Types of queries are: POCs, o
8151 1268 2771 348 Uninet S.A. de C.V.
28573 1263 996 67 Types of queries are: POCs, o
7303 1047 578 164 Telecom Argentina S.A.
14420 711 56 87 CORPORACION NACIONAL DE TELEC
6503 587 450 76 Axtel, S.A.B. de C.V.
22047 578 322 17 Types of queries are: POCs, o
27947 550 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 635 445 11 TEDATA
15475 512 74 8 Nile Online
36992 303 415 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 175 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 3582 3817 228 BellSouth.net Inc.
23456 3117 743 1685 32-bit ASN transition
4766 1941 11038 646 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1825 681 123 PaeTec Communications, Inc.
17974 1613 516 31 PT Telekomunikasi Indonesia
4323 1612 1101 396 tw telecom holdings, inc.
10620 1611 297 155 Types of queries are: POCs, o
7029 1597 1033 208 Windstream Communications Inc
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 1825 1702 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1613 1582 PT Telekomunikasi Indonesia
7545 1574 1491 TPG Internet Pty Ltd
10620 1611 1456 Types of queries are: POCs, o
23456 3117 1432 32-bit ASN transition
7029 1597 1389 Windstream Communications Inc
4755 1527 1363 TATA Communications formerly
22773 1441 1344 Cox Communications Inc.
4766 1941 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
/13:461 /14:795 /15:1410 /16:11907 /17:5921 /18:9924
/19:19661 /20:26566 /21:26582 /22:35409 /23:34022 /24:189508
/25:12 /26:20 /27:23 /28:156 /29:112 /30:60
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2213 3582 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1528 3117 32-bit ASN transition
10620 1506 1611 Types of queries are: POCs, o
7029 1281 1597 Windstream Communications Inc
11492 1107 1153 CABLE ONE, INC.
7011 1063 1188 Frontier Communications of Am
1785 1053 1825 PaeTec Communications, Inc.
22773 935 1441 Cox Communications Inc.
30036 889 915 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 8:342
12:1955 13:1 14:511 15:15 16:3 17:5
20:10 23:31 24:1673 27:907 31:514 32:59
33:4 34:2 36:4 38:729 40:107 41:2449
42:50 44:3 46:1065 47:3 49:219 50:416
52:13 54:2 55:5 56:2 57:34 58:815
59:496 60:374 61:1010 62:1090 63:1926 64:3969
65:2302 66:3904 67:1919 68:1106 69:3118 70:776
71:373 72:1842 74:2432 75:329 76:338 77:865
78:708 79:479 80:1122 81:830 82:496 83:475
84:685 85:1078 86:501 87:851 88:339 89:1534
90:224 91:4055 92:524 93:1137 94:1339 95:866
96:414 97:266 98:924 99:37 101:74 103:235
106:79 107:36 108:75 109:1009 110:631 111:730
112:307 113:410 114:553 115:685 116:973 117:658
118:842 119:1187 120:329 121:662 122:1609 123:982
124:1278 125:1276 128:207 129:169 130:160 131:578
132:110 133:21 134:205 135:54 136:213 137:134
138:293 139:113 140:467 141:279 142:369 143:423
144:483 145:59 146:455 147:232 148:616 149:250
150:194 151:190 152:439 153:179 154:4 155:401
156:200 157:310 158:139 159:390 160:318 161:198
162:328 163:156 164:515 165:364 166:533 167:434
168:735 169:151 170:838 171:82 172:1 173:1644
174:624 175:384 176:156 177:240 178:1004 180:927
181:25 182:524 183:242 184:338 185:1 186:1380
187:689 188:938 189:864 190:5093 192:5880 193:4987
194:3507 195:3048 196:1241 197:144 198:3537 199:4018
200:5429 201:1510 202:8191 203:8368 204:4181 205:2302
206:2587 207:2757 208:3992 209:3412 210:2613 211:1452
212:2097 213:1764 214:779 215:76 216:4799 217:1614
218:541 219:347 220:1185 221:499 222:302 223:244
End of report
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