Routing Table Report 08:00 +10GMT Thu 18 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 362181
Prefixes after maximum aggregation: 164545
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182638
Total ASes present in the Internet Routing Table: 37022
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 31934
Origin ASes announcing only one prefix: 15382
Transit ASes present in the Internet Routing Table: 5088
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: 2473
Unregistered ASNs in the Routing Table: 702
Number of 32-bit ASNs allocated by the RIRs: 1650
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3055
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2511126272
Equivalent to 149 /8s, 172 /16s and 191 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 149773
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87574
Total APNIC prefixes after maximum aggregation: 29129
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85012
Unique aggregates announced from the APNIC address blocks: 37870
APNIC Region origin ASes present in the Internet Routing Table: 4482
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 680
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: 623081216
Equivalent to 37 /8s, 35 /16s and 119 /24s
Percentage of available APNIC address space announced: 79.0
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: 141082
Total ARIN prefixes after maximum aggregation: 72804
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113161
Unique aggregates announced from the ARIN address blocks: 47104
ARIN Region origin ASes present in the Internet Routing Table: 14511
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5601
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: 803627520
Equivalent to 47 /8s, 230 /16s and 98 /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: 87938
Total RIPE prefixes after maximum aggregation: 49653
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81139
Unique aggregates announced from the RIPE address blocks: 53411
RIPE Region origin ASes present in the Internet Routing Table: 15874
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7913
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: 487581952
Equivalent to 29 /8s, 15 /16s and 233 /24s
Percentage of available RIPE address space announced: 78.5
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: 33477
Total LACNIC prefixes after maximum aggregation: 7543
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 32872
Unique aggregates announced from the LACNIC address blocks: 17302
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 87524608
Equivalent to 5 /8s, 55 /16s and 133 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8351
Total AfriNIC prefixes after maximum aggregation: 2042
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6469
Unique aggregates announced from the AfriNIC address blocks: 2109
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.45
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26913792
Equivalent to 1 /8s, 154 /16s and 172 /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 1937 11038 646 Korea Telecom (KIX)
17974 1606 516 31 PT Telekomunikasi Indonesia
7545 1571 301 81 TPG Internet Pty Ltd
4755 1525 374 167 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1136 984 36 National Internet Backbone
9583 1071 78 493 Sify Limited
7552 1001 1062 11 Vietel Corporation
17488 999 188 138 Hathway IP Over Cable Interne
4808 950 2004 271 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 3582 3817 227 BellSouth.net Inc.
18566 1911 364 238 Covad Communications Co.
1785 1819 681 123 PaeTec Communications, Inc.
4323 1618 1102 402 tw telecom holdings, inc.
7029 1611 1029 208 Windstream Communications Inc
20115 1584 1537 629 Charter Communications
22773 1434 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1366 7085 895 AT&T Services, Inc.
2386 1247 517 897 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 539 107 183 BILISIM TELEKOM
6830 510 1788 316 UPC Broadband
20940 474 136 367 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
8866 458 133 26 Bulgarian Telecommunication C
12479 455 593 7 France Telecom Espana SA
3320 424 8151 370 Deutsche Telekom AG
29049 416 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 1587 293 163 Types of queries are: POCs, o
8151 1263 2745 352 Uninet S.A. de C.V.
28573 1257 996 67 Types of queries are: POCs, o
7303 1046 578 163 Telecom Argentina S.A.
6503 731 450 76 Axtel, S.A.B. de C.V.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 533 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
11172 512 101 91 Alestra, S. de R.L. de C.V.
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 807 145 56 LINKdotNET AS number
8452 636 445 11 TEDATA
15475 512 74 8 Nile Online
36992 307 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
15706 253 32 6 Sudatel Internet Exchange Aut
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
12258 195 28 62 Vodacom Internet Company
24835 179 78 10 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 227 BellSouth.net Inc.
23456 3055 732 1644 32-bit ASN transition
4766 1937 11038 646 Korea Telecom (KIX)
18566 1911 364 238 Covad Communications Co.
1785 1819 681 123 PaeTec Communications, Inc.
4323 1618 1102 402 tw telecom holdings, inc.
7029 1611 1029 208 Windstream Communications Inc
17974 1606 516 31 PT Telekomunikasi Indonesia
10620 1587 293 163 Types of queries are: POCs, o
20115 1584 1537 629 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 1819 1696 PaeTec Communications, Inc.
18566 1911 1673 Covad Communications Co.
17974 1606 1575 PT Telekomunikasi Indonesia
7545 1571 1490 TPG Internet Pty Ltd
10620 1587 1424 Types of queries are: POCs, o
23456 3055 1411 32-bit ASN transition
7029 1611 1403 Windstream Communications Inc
4755 1525 1358 TATA Communications formerly
22773 1434 1337 Cox Communications Inc.
4766 1937 1291 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 /8:21 /9:12 /10:27 /11:81 /12:234
/13:465 /14:796 /15:1412 /16:12040 /17:5907 /18:9910
/19:19621 /20:26454 /21:26482 /22:35153 /23:33860 /24:189182
/25:11 /26:20 /27:23 /28:159 /29:113 /30:61
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3582 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1502 3055 32-bit ASN transition
10620 1482 1587 Types of queries are: POCs, o
7029 1295 1611 Windstream Communications Inc
11492 1100 1146 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1052 1819 PaeTec Communications, Inc.
22773 930 1434 Cox Communications Inc.
30036 908 931 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:352 2:46 4:15 5:1 6:3 8:340
12:1956 13:1 14:506 15:15 16:3 17:5
20:10 23:19 24:1683 27:863 31:516 32:59
33:4 34:2 36:4 38:728 40:107 41:2514
42:45 44:3 46:1058 47:3 49:219 50:403
52:13 54:2 55:5 56:2 57:34 58:816
59:494 60:374 61:1018 62:1080 63:1925 64:3971
65:2298 66:3919 67:1919 68:1100 69:3080 70:776
71:373 72:1844 74:2429 75:328 76:338 77:861
78:705 79:488 80:1127 81:831 82:496 83:475
84:685 85:1076 86:497 87:840 88:337 89:1536
90:224 91:4051 92:526 93:1134 94:1347 95:875
96:414 97:266 98:919 99:37 101:74 103:200
106:69 107:32 108:72 109:1011 110:626 111:728
112:298 113:407 114:558 115:675 116:974 117:648
118:830 119:1176 120:311 121:661 122:1598 123:972
124:1277 125:1281 128:208 129:169 130:165 131:575
132:108 133:21 134:205 135:51 136:214 137:135
138:296 139:114 140:466 141:276 142:366 143:419
144:487 145:58 146:456 147:216 148:628 149:253
150:156 151:190 152:438 153:184 154:4 155:401
156:196 157:300 158:133 159:392 160:318 161:198
162:325 163:154 164:516 165:364 166:534 167:433
168:741 169:151 170:841 171:81 172:1 173:1642
174:622 175:376 176:154 177:219 178:998 180:926
181:26 182:517 183:242 184:364 185:1 186:1365
187:723 188:928 189:926 190:5113 192:5881 193:4973
194:3506 195:3035 196:1213 197:127 198:3533 199:3989
200:5441 201:1485 202:8196 203:8374 204:4177 205:2299
206:2584 207:2735 208:3995 209:3386 210:2609 211:1450
212:2102 213:1769 214:753 215:70 216:4838 217:1619
218:544 219:345 220:1186 221:499 222:310 223:234
End of report
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