Routing Table Report 08:00 +10GMT Mon 12 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 365001
Prefixes after maximum aggregation: 165465
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183673
Total ASes present in the Internet Routing Table: 37182
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 32075
Origin ASes announcing only one prefix: 15450
Transit ASes present in the Internet Routing Table: 5107
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: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 2560
Unregistered ASNs in the Routing Table: 780
Number of 32-bit ASNs allocated by the RIRs: 1720
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3195
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 102
Number of addresses announced to Internet: 2492263936
Equivalent to 148 /8s, 140 /16s and 238 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 150732
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88631
Total APNIC prefixes after maximum aggregation: 29345
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86067
Unique aggregates announced from the APNIC address blocks: 38144
APNIC Region origin ASes present in the Internet Routing Table: 4506
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 691
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: 625209344
Equivalent to 37 /8s, 67 /16s and 240 /24s
Percentage of available APNIC address space announced: 79.3
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: 141935
Total ARIN prefixes after maximum aggregation: 72899
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114086
Unique aggregates announced from the ARIN address blocks: 47231
ARIN Region origin ASes present in the Internet Routing Table: 14571
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5625
ARIN Region transit ASes present in the Internet Routing Table: 1474
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804829440
Equivalent to 47 /8s, 248 /16s and 185 /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: 88343
Total RIPE prefixes after maximum aggregation: 49966
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81409
Unique aggregates announced from the RIPE address blocks: 53821
RIPE Region origin ASes present in the Internet Routing Table: 15942
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7959
RIPE Region transit ASes present in the Internet Routing Table: 2508
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: 488759040
Equivalent to 29 /8s, 33 /16s and 223 /24s
Percentage of available RIPE address space announced: 78.7
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: 33908
Total LACNIC prefixes after maximum aggregation: 7645
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33377
Unique aggregates announced from the LACNIC address blocks: 17676
LACNIC Region origin ASes present in the Internet Routing Table: 1508
LACNIC Prefixes per ASN: 22.13
LACNIC Region origin ASes announcing only one prefix: 455
LACNIC Region transit ASes present in the Internet Routing Table: 261
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: 88367104
Equivalent to 5 /8s, 68 /16s and 96 /24s
Percentage of available LACNIC address space announced: 58.5
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: 8304
Total AfriNIC prefixes after maximum aggregation: 2050
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 6420
Unique aggregates announced from the AfriNIC address blocks: 2010
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 27240960
Equivalent to 1 /8s, 159 /16s and 170 /24s
Percentage of available AfriNIC address space announced: 40.6
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 1943 11039 648 Korea Telecom (KIX)
17974 1678 516 31 PT Telekomunikasi Indonesia
7545 1584 301 82 TPG Internet Pty Ltd
4755 1536 378 166 TATA Communications formerly
24560 1178 336 193 Bharti Airtel Ltd., Telemedia
9829 1149 989 28 National Internet Backbone
9583 1079 80 503 Sify Limited
7552 1000 1062 11 Vietel Corporation
17488 982 192 158 Hathway IP Over Cable Interne
4808 956 1996 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 3563 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
4323 1624 1101 396 tw telecom holdings, inc.
7029 1622 1033 209 Windstream Communications Inc
20115 1591 1541 632 Charter Communications
22773 1449 2905 98 Cox Communications Inc.
19262 1394 4724 399 Verizon Online LLC
7018 1346 7084 884 AT&T Services, Inc.
30036 1327 243 687 Mediacom Communications Corp
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
34984 544 107 178 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Broadband
20940 501 155 389 Akamai Technologies European
3292 473 2080 404 TDC Data Networks
12479 468 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 405 355 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 1661 305 161 Types of queries are: POCs, o
28573 1299 1003 71 Types of queries are: POCs, o
8151 1263 2766 349 Uninet S.A. de C.V.
7303 1051 578 166 Telecom Argentina S.A.
14420 715 57 88 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 570 450 69 Axtel, S.A.B. de C.V.
27947 554 56 77 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
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 808 147 41 LINKdotNET AS number
8452 681 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 204 13 14 Starcomms Nigeria Limited
12258 194 28 63 Vodacom Internet Company
29571 191 17 11 Ci Telecom Autonomous system
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 3563 3817 227 BellSouth.net Inc.
23456 3195 762 1737 32-bit ASN transition
4766 1943 11039 648 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1824 680 122 PaeTec Communications, Inc.
17974 1678 516 31 PT Telekomunikasi Indonesia
10620 1661 305 161 Types of queries are: POCs, o
4323 1624 1101 396 tw telecom holdings, inc.
7029 1622 1033 209 Windstream Communications Inc
20115 1591 1541 632 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 1824 1702 PaeTec Communications, Inc.
18566 1910 1675 Covad Communications Co.
17974 1678 1647 PT Telekomunikasi Indonesia
7545 1584 1502 TPG Internet Pty Ltd
10620 1661 1500 Types of queries are: POCs, o
23456 3195 1458 32-bit ASN transition
7029 1622 1413 Windstream Communications Inc
4755 1536 1370 TATA Communications formerly
22773 1449 1351 Cox Communications Inc.
4766 1943 1295 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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /12:235
/13:463 /14:797 /15:1410 /16:11924 /17:5935 /18:9962
/19:19800 /20:26763 /21:26845 /22:35745 /23:34290 /24:190188
/25:12 /26:20 /27:22 /28:154 /29:114 /30:59
/31:0 /32:123
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2199 3563 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
10620 1556 1661 Types of queries are: POCs, o
23456 1556 3195 32-bit ASN transition
7029 1306 1622 Windstream Communications Inc
30036 1290 1327 Mediacom Communications Corp
11492 1111 1157 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1051 1824 PaeTec Communications, Inc.
22773 940 1449 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:369 2:49 4:15 5:1 6:3 8:346
12:1949 13:1 14:521 15:13 16:3 17:5
20:10 23:32 24:1666 27:932 31:516 32:59
33:3 34:2 36:4 38:732 40:107 41:2461
42:43 44:3 46:973 47:3 49:232 50:413
52:13 54:2 55:6 56:2 57:34 58:821
59:491 60:374 61:1010 62:1082 63:1935 64:4001
65:2300 66:3915 67:1952 68:1094 69:3165 70:778
71:377 72:1857 74:2425 75:327 76:338 77:869
78:667 79:481 80:1125 81:843 82:507 83:491
84:685 85:1090 86:418 87:864 88:347 89:1540
90:232 91:4082 92:522 93:1130 94:1340 95:801
96:417 97:271 98:928 99:37 100:1 101:79
103:278 106:71 107:42 108:76 109:1013 110:631
111:741 112:311 113:420 114:551 115:686 116:903
117:661 118:849 119:1175 120:334 121:667 122:1597
123:1006 124:1288 125:1342 128:214 129:174 130:160
131:579 132:111 133:21 134:207 135:52 136:204
137:135 138:294 139:114 140:471 141:289 142:371
143:408 144:487 145:60 146:460 147:215 148:613
149:249 150:146 151:189 152:442 153:179 154:5
155:393 156:199 157:323 158:143 159:391 160:322
161:198 162:330 163:163 164:512 165:368 166:536
167:430 168:737 169:143 170:849 171:84 172:1
173:1645 174:631 175:391 176:172 177:246 178:1004
180:1016 181:24 182:595 183:230 184:353 185:1
186:1416 187:674 188:938 189:867 190:5131 192:5885
193:4998 194:3515 195:3046 196:1229 197:147 198:3531
199:4064 200:5447 201:1627 202:8217 203:8398 204:4178
205:2307 206:2593 207:2757 208:4014 209:3435 210:2610
211:1455 212:2105 213:1764 214:769 215:76 216:4818
217:1598 218:541 219:341 220:1186 221:499 222:303
223:256
End of report
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