Routing Table Report 08:00 +10GMT Wed 23 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 376843
Prefixes after maximum aggregation: 165241
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187916
Total ASes present in the Internet Routing Table: 37574
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 32403
Origin ASes announcing only one prefix: 15487
Transit ASes present in the Internet Routing Table: 5171
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2503
Unregistered ASNs in the Routing Table: 969
Number of 32-bit ASNs allocated by the RIRs: 1974
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3864
Special use prefixes present in the Routing Table: 7
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2509272064
Equivalent to 149 /8s, 144 /16s and 116 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 157587
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90358
Total APNIC prefixes after maximum aggregation: 29957
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87762
Unique aggregates announced from the APNIC address blocks: 38621
APNIC Region origin ASes present in the Internet Routing Table: 4563
APNIC Prefixes per ASN: 19.23
APNIC Region origin ASes announcing only one prefix: 1274
APNIC Region transit ASes present in the Internet Routing Table: 699
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: 629809920
Equivalent to 37 /8s, 138 /16s and 35 /24s
Percentage of available APNIC address space announced: 79.9
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: 144835
Total ARIN prefixes after maximum aggregation: 74102
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117301
Unique aggregates announced from the ARIN address blocks: 48599
ARIN Region origin ASes present in the Internet Routing Table: 14684
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5618
ARIN Region transit ASes present in the Internet Routing Table: 1497
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: 803321088
Equivalent to 47 /8s, 225 /16s and 181 /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: 93057
Total RIPE prefixes after maximum aggregation: 51181
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85241
Unique aggregates announced from the RIPE address blocks: 54418
RIPE Region origin ASes present in the Internet Routing Table: 16116
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 7989
RIPE Region transit ASes present in the Internet Routing Table: 2526
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 492613632
Equivalent to 29 /8s, 92 /16s and 176 /24s
Percentage of available RIPE address space announced: 79.4
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: 35824
Total LACNIC prefixes after maximum aggregation: 7878
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35447
Unique aggregates announced from the LACNIC address blocks: 18630
LACNIC Region origin ASes present in the Internet Routing Table: 1538
LACNIC Prefixes per ASN: 23.05
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 269
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 93190400
Equivalent to 5 /8s, 141 /16s and 249 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8212
Total AfriNIC prefixes after maximum aggregation: 2050
AfriNIC Deaggregation factor: 4.01
Prefixes being announced from the AfriNIC address blocks: 6278
Unique aggregates announced from the AfriNIC address blocks: 2048
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.51
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 27845632
Equivalent to 1 /8s, 168 /16s and 228 /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 1954 11102 666 Korea Telecom (KIX)
7545 1624 303 87 TPG Internet Pty Ltd
17974 1571 511 36 PT Telekomunikasi Indonesia
4755 1504 376 168 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1094 80 494 Sify Limited
7552 982 1062 11 Vietel Corporation
4808 978 1979 278 CNCGROUP IP network China169
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 148 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 3483 3814 220 BellSouth.net Inc.
7029 2944 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1852 680 121 PaeTec Communications, Inc.
4323 1612 1094 390 tw telecom holdings, inc.
20115 1597 1546 624 Charter Communications
22773 1500 2909 104 Cox Communications Inc.
30036 1435 257 671 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1320 7063 866 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 1571 480 15 Corbina telecom
6830 649 1927 412 UPC Broadband
34984 603 114 188 BILISIM TELEKOM
20940 557 185 439 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 511 8168 388 Deutsche Telekom AG
12479 486 596 9 France Telecom Espana SA
3292 481 2106 409 TDC Data Networks
8866 462 133 26 Bulgarian Telecommunication C
8551 416 367 39 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 1699 315 178 Types of queries are: POCs, o
28573 1507 1045 71 Types of queries are: POCs, o
8151 1312 2952 339 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 597 72 87 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 546 434 69 Axtel, S.A.B. de C.V.
3816 544 235 97 Types of queries are: POCs, o
11172 528 101 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
8452 844 446 12 TEDATA
24863 775 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 217 13 14 Starcomms Nigeria Limited
12258 197 28 58 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
36923 159 20 4 Swift Networks Limited
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 3483 3814 220 BellSouth.net Inc.
7029 2944 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1954 11102 666 Korea Telecom (KIX)
1785 1852 680 121 PaeTec Communications, Inc.
10620 1699 315 178 Types of queries are: POCs, o
7545 1624 303 87 TPG Internet Pty Ltd
4323 1612 1094 390 tw telecom holdings, inc.
20115 1597 1546 624 Charter Communications
8402 1571 480 15 Corbina telecom
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 2944 2732 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1852 1731 PaeTec Communications, Inc.
8402 1571 1556 Corbina telecom
7545 1624 1537 TPG Internet Pty Ltd
17974 1571 1535 PT Telekomunikasi Indonesia
10620 1699 1521 Types of queries are: POCs, o
28573 1507 1436 Types of queries are: POCs, o
22773 1500 1396 Cox Communications Inc.
4755 1504 1336 TATA Communications formerly
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
128.0.24.0/24 12654 RIPE NCC RIS Project
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 37345 MEDALLION Communications
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 /12:237
/13:465 /14:806 /15:1424 /16:11980 /17:6071 /18:10081
/19:20115 /20:27673 /21:27849 /22:37673 /23:35190 /24:196607
/25:11 /26:21 /27:20 /28:154 /29:128 /30:63
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2557 2944 Windstream Communications Inc
6389 2124 3483 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1594 1699 Types of queries are: POCs, o
8402 1546 1571 Corbina telecom
30036 1395 1435 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1058 1852 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 960 1500 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:418 2:487 4:15 5:1 6:3 8:358
12:1959 13:1 14:545 15:11 16:3 17:7
20:9 23:69 24:1685 27:1020 31:709 32:60
33:2 34:2 36:4 38:762 40:109 41:2805
42:64 44:3 46:1060 47:3 49:294 50:446
52:13 55:6 56:2 57:45 58:870 59:482
60:356 61:1065 62:898 63:1961 64:4055 65:2299
66:4328 67:2010 68:1172 69:3148 70:903 71:356
72:1813 74:2650 75:430 76:320 77:894 78:894
79:456 80:1140 81:836 82:517 83:523 84:468
85:1152 86:411 87:907 88:357 89:1595 90:237
91:4269 92:538 93:1447 94:1313 95:1114 96:424
97:285 98:773 99:37 101:119 103:503 106:1
107:95 108:86 109:1191 110:652 111:803 112:355
113:477 114:612 115:684 116:856 117:693 118:881
119:1263 120:349 121:652 122:1551 123:1020 124:1296
125:1299 128:235 129:176 130:164 131:629 132:147
133:21 134:221 135:54 136:209 137:143 138:285
139:120 140:468 141:249 142:369 143:400 144:494
145:65 146:467 147:220 148:618 149:272 150:157
151:191 152:446 153:172 154:5 155:390 156:205
157:323 158:156 159:427 160:332 161:204 162:367
163:165 164:514 165:370 166:540 167:448 168:822
169:145 170:823 171:87 172:4 173:1749 174:589
175:408 176:320 177:404 178:1118 180:1175 181:39
182:651 183:238 184:394 185:1 186:1420 187:782
188:985 189:1152 190:5182 192:5889 193:5053 194:3551
195:3109 196:1265 197:167 198:3564 199:4175 200:5444
201:1702 202:8269 203:8442 204:4231 205:2381 206:2571
207:2767 208:4020 209:3557 210:2662 211:1442 212:2036
213:1809 214:806 215:93 216:4885 217:1479 218:558
219:333 220:1217 221:507 222:298 223:278
End of report
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