Routing Table Report 08:00 +10GMT Sat 29 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 372793
Prefixes after maximum aggregation: 164263
Deaggregation factor: 2.27
Unique aggregates announced to Internet: 186064
Total ASes present in the Internet Routing Table: 37469
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32322
Origin ASes announcing only one prefix: 15508
Transit ASes present in the Internet Routing Table: 5147
Transit-only ASes present in the Internet Routing Table: 130
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: 2320
Unregistered ASNs in the Routing Table: 913
Number of 32-bit ASNs allocated by the RIRs: 1911
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3615
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2505628928
Equivalent to 149 /8s, 88 /16s and 221 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
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: 155197
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89616
Total APNIC prefixes after maximum aggregation: 29684
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87013
Unique aggregates announced from the APNIC address blocks: 38092
APNIC Region origin ASes present in the Internet Routing Table: 4547
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1283
APNIC Region transit ASes present in the Internet Routing Table: 692
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: 628945920
Equivalent to 37 /8s, 124 /16s and 244 /24s
Percentage of available APNIC address space announced: 79.8
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: 144145
Total ARIN prefixes after maximum aggregation: 73945
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116536
Unique aggregates announced from the ARIN address blocks: 48306
ARIN Region origin ASes present in the Internet Routing Table: 14668
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5651
ARIN Region transit ASes present in the Internet Routing Table: 1491
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: 804733696
Equivalent to 47 /8s, 247 /16s and 67 /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: 91375
Total RIPE prefixes after maximum aggregation: 50779
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83973
Unique aggregates announced from the RIPE address blocks: 54258
RIPE Region origin ASes present in the Internet Routing Table: 16056
RIPE Prefixes per ASN: 5.23
RIPE Region origin ASes announcing only one prefix: 7968
RIPE Region transit ASes present in the Internet Routing Table: 2515
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: 491226112
Equivalent to 29 /8s, 71 /16s and 132 /24s
Percentage of available RIPE address space announced: 79.1
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: 34925
Total LACNIC prefixes after maximum aggregation: 7823
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 34516
Unique aggregates announced from the LACNIC address blocks: 18141
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.60
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 267
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: 92646656
Equivalent to 5 /8s, 133 /16s and 173 /24s
Percentage of available LACNIC address space announced: 61.4
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: 8439
Total AfriNIC prefixes after maximum aggregation: 1955
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 6635
Unique aggregates announced from the AfriNIC address blocks: 1973
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 158
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: 27891200
Equivalent to 1 /8s, 169 /16s and 150 /24s
Percentage of available AfriNIC address space announced: 41.6
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 11088 658 Korea Telecom (KIX)
7545 1610 303 86 TPG Internet Pty Ltd
17974 1606 511 36 PT Telekomunikasi Indonesia
4755 1533 377 174 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1091 80 499 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 975 2009 278 CNCGROUP IP network China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 954 166 150 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 3546 3815 221 BellSouth.net Inc.
7029 2365 1042 210 Windstream Communications Inc
18566 2096 382 176 Covad Communications Co.
1785 1844 680 122 PaeTec Communications, Inc.
4323 1623 1094 389 tw telecom holdings, inc.
20115 1594 1546 620 Charter Communications
22773 1458 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1392 252 670 Mediacom Communications Corp
7018 1323 7063 867 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 1418 352 13 Corbina telecom
6830 649 1927 412 UPC Broadband
34984 589 108 179 BILISIM TELEKOM
20940 545 182 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 506 8169 386 Deutsche Telekom AG
3292 480 2074 407 TDC Data Networks
12479 479 596 9 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
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 1699 314 156 Types of queries are: POCs, o
28573 1459 1040 72 Types of queries are: POCs, o
8151 1280 2908 343 Uninet S.A. de C.V.
7303 1231 748 177 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 577 72 84 Telconet S.A
6503 560 450 70 Axtel, S.A.B. de C.V.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 95 Types of queries are: POCs, o
11172 524 102 97 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 797 146 33 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 454 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 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 3546 3815 221 BellSouth.net Inc.
7029 2365 1042 210 Windstream Communications Inc
18566 2096 382 176 Covad Communications Co.
4766 1941 11088 658 Korea Telecom (KIX)
1785 1844 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
4323 1623 1094 389 tw telecom holdings, inc.
7545 1610 303 86 TPG Internet Pty Ltd
17974 1606 511 36 PT Telekomunikasi Indonesia
20115 1594 1546 620 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 2365 2155 Windstream Communications Inc
18566 2096 1920 Covad Communications Co.
1785 1844 1722 PaeTec Communications, Inc.
17974 1606 1570 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1610 1524 TPG Internet Pty Ltd
8402 1418 1405 Corbina telecom
28573 1459 1387 Types of queries are: POCs, o
4755 1533 1359 TATA Communications formerly
22773 1458 1358 Cox Communications Inc.
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
41.79.132.0/23 30969 Zimbabwe OnLine
41.79.132.0/22 30969 Zimbabwe OnLine
41.79.134.0/23 30969 Zimbabwe OnLine
41.222.79.0/24 36938 >>UNKNOWN<<
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
/13:465 /14:807 /15:1422 /16:11966 /17:6054 /18:10024
/19:20037 /20:27495 /21:27442 /22:36842 /23:34804 /24:194544
/25:12 /26:21 /27:20 /28:153 /29:120 /30:61
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3546 BellSouth.net Inc.
18566 2046 2096 Covad Communications Co.
7029 2019 2365 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
8402 1394 1418 Corbina telecom
30036 1353 1392 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1056 1844 PaeTec Communications, Inc.
7011 1050 1168 Frontier Communications of Am
22773 946 1458 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:411 2:466 4:15 5:1 6:3 8:357
12:1952 13:1 14:532 15:11 16:3 17:7
20:9 23:60 24:1677 27:967 31:620 32:56
33:2 34:2 36:4 38:751 40:110 41:2692
42:53 44:3 46:1007 47:3 49:288 50:439
52:13 55:5 56:2 57:39 58:839 59:489
60:360 61:1016 62:1089 63:1955 64:4020 65:2275
66:4257 67:1978 68:1147 69:3190 70:879 71:375
72:1803 74:2597 75:392 76:317 77:879 78:860
79:452 80:1133 81:838 82:507 83:529 84:619
85:1125 86:410 87:892 88:353 89:1604 90:237
91:4244 92:530 93:1520 94:1303 95:1039 96:428
97:283 98:914 99:37 101:100 103:406 106:70
107:78 108:72 109:1052 110:641 111:792 112:326
113:469 114:607 115:676 116:862 117:694 118:860
119:1214 120:337 121:681 122:1553 123:1016 124:1295
125:1304 128:209 129:167 130:157 131:622 132:138
133:21 134:212 135:54 136:211 137:137 138:286
139:119 140:466 141:308 142:371 143:419 144:492
145:63 146:455 147:216 148:618 149:266 150:160
151:194 152:444 153:178 154:6 155:388 156:205
157:326 158:154 159:415 160:330 161:204 162:336
163:163 164:507 165:368 166:373 167:437 168:733
169:144 170:873 171:85 172:4 173:1695 174:644
175:406 176:277 177:352 178:1053 180:1111 181:36
182:638 183:213 184:382 185:1 186:1300 187:714
188:951 189:871 190:5124 192:5863 193:5034 194:3556
195:3111 196:1191 197:165 198:3560 199:4132 200:5445
201:1684 202:8242 203:8394 204:4229 205:2341 206:2584
207:2756 208:4014 209:3548 210:2638 211:1450 212:2101
213:1776 214:792 215:96 216:4895 217:1603 218:554
219:337 220:1210 221:499 222:295 223:267
End of report
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