Routing Table Report 08:00 +10GMT Mon 31 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 373468
Prefixes after maximum aggregation: 164290
Deaggregation factor: 2.27
Unique aggregates announced to Internet: 186146
Total ASes present in the Internet Routing Table: 37459
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 32310
Origin ASes announcing only one prefix: 15488
Transit ASes present in the Internet Routing Table: 5149
Transit-only ASes present in the Internet Routing Table: 132
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: 2323
Unregistered ASNs in the Routing Table: 916
Number of 32-bit ASNs allocated by the RIRs: 1917
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3624
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2506084352
Equivalent to 149 /8s, 95 /16s and 208 /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: 155672
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89694
Total APNIC prefixes after maximum aggregation: 29695
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87098
Unique aggregates announced from the APNIC address blocks: 38124
APNIC Region origin ASes present in the Internet Routing Table: 4549
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1280
APNIC Region transit ASes present in the Internet Routing Table: 694
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: 629100288
Equivalent to 37 /8s, 127 /16s and 79 /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: 144447
Total ARIN prefixes after maximum aggregation: 73884
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 116674
Unique aggregates announced from the ARIN address blocks: 48291
ARIN Region origin ASes present in the Internet Routing Table: 14639
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5623
ARIN Region transit ASes present in the Internet Routing Table: 1495
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: 804734720
Equivalent to 47 /8s, 247 /16s and 71 /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: 91521
Total RIPE prefixes after maximum aggregation: 50790
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84099
Unique aggregates announced from the RIPE address blocks: 54289
RIPE Region origin ASes present in the Internet Routing Table: 16073
RIPE Prefixes per ASN: 5.23
RIPE Region origin ASes announcing only one prefix: 7980
RIPE Region transit ASes present in the Internet Routing Table: 2512
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: 491167488
Equivalent to 29 /8s, 70 /16s and 159 /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: 34964
Total LACNIC prefixes after maximum aggregation: 7825
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 34561
Unique aggregates announced from the LACNIC address blocks: 18124
LACNIC Region origin ASes present in the Internet Routing Table: 1528
LACNIC Prefixes per ASN: 22.62
LACNIC Region origin ASes announcing only one prefix: 447
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: 92617728
Equivalent to 5 /8s, 133 /16s and 60 /24s
Percentage of available LACNIC address space announced: 61.3
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: 8533
Total AfriNIC prefixes after maximum aggregation: 2020
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6646
Unique aggregates announced from the AfriNIC address blocks: 1981
AfriNIC Region origin ASes present in the Internet Routing Table: 494
AfriNIC Prefixes per ASN: 13.45
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: 27905280
Equivalent to 1 /8s, 169 /16s and 205 /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 1605 511 36 PT Telekomunikasi Indonesia
4755 1525 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 955 166 150 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 3545 3815 221 BellSouth.net Inc.
7029 2365 1042 210 Windstream Communications Inc
18566 2095 382 176 Covad Communications Co.
1785 1843 680 122 PaeTec Communications, Inc.
4323 1623 1094 389 tw telecom holdings, inc.
20115 1588 1544 622 Charter Communications
22773 1458 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1394 253 667 Mediacom Communications Corp
7018 1321 7063 865 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 1411 352 13 Corbina telecom
6830 649 1927 412 UPC Broadband
34984 589 108 179 BILISIM TELEKOM
20940 548 182 423 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 1464 1040 72 Types of queries are: POCs, o
8151 1281 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 578 72 84 Telconet S.A
6503 559 434 69 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 652 446 12 TEDATA
15475 451 74 8 Nile Online
36992 298 415 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 3545 3815 221 BellSouth.net Inc.
7029 2365 1042 210 Windstream Communications Inc
18566 2095 382 176 Covad Communications Co.
4766 1941 11088 658 Korea Telecom (KIX)
1785 1843 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 1605 511 36 PT Telekomunikasi Indonesia
20115 1588 1544 622 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 2095 1919 Covad Communications Co.
1785 1843 1721 PaeTec Communications, Inc.
17974 1605 1569 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1610 1524 TPG Internet Pty Ltd
8402 1411 1398 Corbina telecom
28573 1464 1392 Types of queries are: POCs, o
22773 1458 1358 Cox Communications Inc.
4755 1525 1351 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
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 /12:237
/13:465 /14:807 /15:1421 /16:11980 /17:6050 /18:10023
/19:20047 /20:27495 /21:27459 /22:36848 /23:34881 /24:195092
/25:12 /26:21 /27:22 /28:154 /29:125 /30:63
/31:0 /32:126
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3545 BellSouth.net Inc.
18566 2045 2095 Covad Communications Co.
7029 2019 2365 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
8402 1387 1411 Corbina telecom
30036 1355 1394 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1056 1843 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)
----------------------------------------------
1:412 2:461 4:15 5:1 6:3 8:356
12:1946 13:1 14:531 15:11 16:3 17:7
20:9 23:60 24:1677 27:968 31:648 32:56
33:2 34:2 36:4 38:752 40:110 41:2693
42:53 44:3 46:1016 47:3 49:293 50:440
52:13 55:6 56:2 57:39 58:844 59:486
60:360 61:1017 62:1090 63:1954 64:4020 65:2301
66:4263 67:1985 68:1146 69:3195 70:878 71:383
72:1801 74:2600 75:392 76:317 77:879 78:851
79:474 80:1138 81:840 82:525 83:529 84:618
85:1130 86:410 87:890 88:355 89:1603 90:237
91:4241 92:527 93:1524 94:1303 95:1041 96:428
97:284 98:928 99:37 101:100 103:405 106:70
107:78 108:72 109:1051 110:641 111:792 112:326
113:468 114:607 115:677 116:864 117:694 118:861
119:1217 120:337 121:677 122:1557 123:1016 124:1295
125:1305 128:208 129:181 130:155 131:625 132:140
133:21 134:212 135:51 136:211 137:137 138:286
139:120 140:460 141:310 142:371 143:419 144:491
145:63 146:455 147:218 148:616 149:266 150:159
151:194 152:444 153:178 154:6 155:389 156:205
157:328 158:154 159:415 160:332 161:204 162:368
163:163 164:507 165:367 166:538 167:434 168:733
169:144 170:880 171:85 172:4 173:1716 174:674
175:406 176:282 177:365 178:1083 180:1114 181:36
182:639 183:213 184:382 185:1 186:1296 187:712
188:951 189:872 190:5125 192:5878 193:5044 194:3556
195:3113 196:1223 197:167 198:3563 199:4131 200:5440
201:1689 202:8263 203:8392 204:4223 205:2343 206:2586
207:2763 208:4010 209:3545 210:2638 211:1450 212:2102
213:1779 214:796 215:95 216:4888 217:1603 218:556
219:337 220:1213 221:499 222:295 223:268
End of report
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