Routing Table Report 08:00 +10GMT Tue 18 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 372093
Prefixes after maximum aggregation: 167589
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185168
Total ASes present in the Internet Routing Table: 37412
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32296
Origin ASes announcing only one prefix: 15502
Transit ASes present in the Internet Routing Table: 5116
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2205
Unregistered ASNs in the Routing Table: 870
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3465
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2501579520
Equivalent to 149 /8s, 27 /16s and 19 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 155075
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89518
Total APNIC prefixes after maximum aggregation: 29613
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86934
Unique aggregates announced from the APNIC address blocks: 38013
APNIC Region origin ASes present in the Internet Routing Table: 4533
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1271
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 4.0
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: 628366336
Equivalent to 37 /8s, 116 /16s and 28 /24s
Percentage of available APNIC address space announced: 79.7
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: 144375
Total ARIN prefixes after maximum aggregation: 73834
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 116672
Unique aggregates announced from the ARIN address blocks: 47943
ARIN Region origin ASes present in the Internet Routing Table: 14657
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5656
ARIN Region transit ASes present in the Internet Routing Table: 1489
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804727808
Equivalent to 47 /8s, 247 /16s and 44 /24s
Percentage of available ARIN address space announced: 64.0
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: 91088
Total RIPE prefixes after maximum aggregation: 50554
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83758
Unique aggregates announced from the RIPE address blocks: 54142
RIPE Region origin ASes present in the Internet Routing Table: 16036
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7974
RIPE Region transit ASes present in the Internet Routing Table: 2502
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 490660096
Equivalent to 29 /8s, 62 /16s and 225 /24s
Percentage of available RIPE address space announced: 79.0
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: 34427
Total LACNIC prefixes after maximum aggregation: 7757
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33969
Unique aggregates announced from the LACNIC address blocks: 17875
LACNIC Region origin ASes present in the Internet Routing Table: 1526
LACNIC Prefixes per ASN: 22.26
LACNIC Region origin ASes announcing only one prefix: 448
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: 90935040
Equivalent to 5 /8s, 107 /16s and 143 /24s
Percentage of available LACNIC address space announced: 60.2
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: 8525
Total AfriNIC prefixes after maximum aggregation: 2026
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6596
Unique aggregates announced from the AfriNIC address blocks: 1970
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27836672
Equivalent to 1 /8s, 168 /16s and 193 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1936 11071 655 Korea Telecom (KIX)
17974 1697 512 39 PT Telekomunikasi Indonesia
7545 1609 303 86 TPG Internet Pty Ltd
4755 1524 379 172 TATA Communications formerly
9829 1162 989 28 National Internet Backbone
9583 1087 80 503 Sify Limited
24560 988 336 234 Bharti Airtel Ltd., Telemedia
7552 983 1062 11 Vietel Corporation
4808 966 2007 274 CNCGROUP IP network China169
18101 954 165 143 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 3548 3815 222 BellSouth.net Inc.
7029 2286 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
1785 1840 680 121 PaeTec Communications, Inc.
4323 1630 1099 392 tw telecom holdings, inc.
20115 1591 1541 635 Charter Communications
22773 1461 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1390 250 672 Mediacom Communications Corp
7018 1350 7113 859 AT&T Services, Inc.
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
8402 1493 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 581 108 179 BILISIM TELEKOM
20940 547 183 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 500 8169 382 Deutsche Telekom AG
3292 483 2080 409 TDC Data Networks
12479 482 593 7 France Telecom Espana SA
8866 458 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1681 310 155 Types of queries are: POCs, o
28573 1383 1031 68 Types of queries are: POCs, o
8151 1285 2844 345 Uninet S.A. de C.V.
7303 1164 683 175 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 569 72 79 Telconet S.A
6503 560 450 70 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 96 Types of queries are: POCs, o
11172 521 101 96 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 796 146 33 LINKdotNET AS number
8452 653 446 12 TEDATA
15475 454 74 8 Nile Online
36992 299 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
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 3548 3815 222 BellSouth.net Inc.
7029 2286 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
4766 1936 11071 655 Korea Telecom (KIX)
1785 1840 680 121 PaeTec Communications, Inc.
17974 1697 512 39 PT Telekomunikasi Indonesia
10620 1681 310 155 Types of queries are: POCs, o
4323 1630 1099 392 tw telecom holdings, inc.
7545 1609 303 86 TPG Internet Pty Ltd
20115 1591 1541 635 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
7029 2286 2076 Windstream Communications Inc
18566 2097 1921 Covad Communications Co.
1785 1840 1719 PaeTec Communications, Inc.
17974 1697 1658 PT Telekomunikasi Indonesia
10620 1681 1526 Types of queries are: POCs, o
7545 1609 1523 TPG Internet Pty Ltd
8402 1493 1480 Corbina telecom
22773 1461 1361 Cox Communications Inc.
4755 1524 1352 TATA Communications formerly
28573 1383 1315 Types of queries are: POCs, o
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.
25639 UNALLOCATED 12.41.169.0/24 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 0 *
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 /12:236
/13:464 /14:806 /15:1421 /16:11956 /17:6012 /18:10007
/19:20042 /20:27227 /21:27251 /22:36621 /23:34730 /24:194655
/25:12 /26:20 /27:22 /28:153 /29:127 /30:61
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3548 BellSouth.net Inc.
18566 2047 2097 Covad Communications Co.
7029 1944 2286 Windstream Communications Inc
10620 1576 1681 Types of queries are: POCs, o
8402 1470 1493 Corbina telecom
30036 1352 1390 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1057 1840 PaeTec Communications, Inc.
7011 1048 1166 Frontier Communications of Am
22773 949 1461 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:399 2:483 4:15 5:1 6:3 8:355
12:1952 13:1 14:529 15:11 16:3 17:7
20:9 23:58 24:1684 27:959 31:594 32:60
33:4 34:2 36:4 38:747 40:109 41:2655
42:52 44:3 46:995 47:3 49:298 50:444
52:13 55:5 56:2 57:36 58:836 59:486
60:360 61:1025 62:1092 63:1923 64:4062 65:2306
66:4268 67:1965 68:1149 69:3224 70:886 71:377
72:1866 74:2583 75:386 76:345 77:883 78:867
79:476 80:1124 81:825 82:502 83:532 84:634
85:1117 86:404 87:892 88:356 89:1597 90:269
91:4204 92:528 93:1525 94:1300 95:1048 96:432
97:283 98:908 99:37 101:92 103:369 106:70
107:69 108:68 109:1051 110:641 111:785 112:320
113:461 114:595 115:669 116:867 117:687 118:859
119:1240 120:337 121:676 122:1560 123:1019 124:1302
125:1324 128:208 129:174 130:160 131:581 132:137
133:21 134:210 135:54 136:211 137:136 138:290
139:117 140:465 141:294 142:364 143:428 144:493
145:63 146:466 147:216 148:620 149:265 150:160
151:192 152:446 153:178 154:6 155:358 156:203
157:328 158:152 159:407 160:323 161:204 162:336
163:163 164:505 165:364 166:536 167:435 168:725
169:143 170:873 171:85 172:4 173:1704 174:679
175:421 176:281 177:324 178:1056 180:1092 181:36
182:624 183:210 184:375 185:1 186:1246 187:690
188:931 189:870 190:5083 192:5863 193:5028 194:3556
195:3105 196:1262 197:168 198:3576 199:4127 200:5433
201:1653 202:8272 203:8371 204:4216 205:2348 206:2587
207:2756 208:4048 209:3571 210:2619 211:1446 212:2082
213:1769 214:781 215:90 216:4975 217:1614 218:553
219:331 220:1202 221:499 222:320 223:274
End of report
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