Routing Table Report 08:00 +10GMT Mon 10 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 369814
Prefixes after maximum aggregation: 167031
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185413
Total ASes present in the Internet Routing Table: 37347
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32238
Origin ASes announcing only one prefix: 15497
Transit ASes present in the Internet Routing Table: 5109
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2384
Unregistered ASNs in the Routing Table: 905
Number of 32-bit ASNs allocated by the RIRs: 1837
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3388
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 91
Number of addresses announced to Internet: 2499910400
Equivalent to 149 /8s, 1 /16s and 155 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
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: 153429
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89326
Total APNIC prefixes after maximum aggregation: 29504
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 86739
Unique aggregates announced from the APNIC address blocks: 38005
APNIC Region origin ASes present in the Internet Routing Table: 4523
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 679
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: 627796992
Equivalent to 37 /8s, 107 /16s and 108 /24s
Percentage of available APNIC address space announced: 79.6
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: 143039
Total ARIN prefixes after maximum aggregation: 73577
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115442
Unique aggregates announced from the ARIN address blocks: 48149
ARIN Region origin ASes present in the Internet Routing Table: 14640
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5659
ARIN Region transit ASes present in the Internet Routing Table: 1496
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: 804538624
Equivalent to 47 /8s, 244 /16s and 73 /24s
Percentage of available ARIN address space announced: 63.9
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: 90611
Total RIPE prefixes after maximum aggregation: 50453
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83270
Unique aggregates announced from the RIPE address blocks: 54247
RIPE Region origin ASes present in the Internet Routing Table: 16008
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7968
RIPE Region transit ASes present in the Internet Routing Table: 2493
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 490453248
Equivalent to 29 /8s, 59 /16s and 185 /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: 34449
Total LACNIC prefixes after maximum aggregation: 7739
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33958
Unique aggregates announced from the LACNIC address blocks: 17934
LACNIC Region origin ASes present in the Internet Routing Table: 1522
LACNIC Prefixes per ASN: 22.31
LACNIC Region origin ASes announcing only one prefix: 455
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 90575104
Equivalent to 5 /8s, 102 /16s and 17 /24s
Percentage of available LACNIC address space announced: 60.0
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: 8296
Total AfriNIC prefixes after maximum aggregation: 2008
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6389
Unique aggregates announced from the AfriNIC address blocks: 1970
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.20
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27735040
Equivalent to 1 /8s, 167 /16s and 52 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1927 11039 649 Korea Telecom (KIX)
17974 1648 512 38 PT Telekomunikasi Indonesia
7545 1607 303 85 TPG Internet Pty Ltd
4755 1534 379 173 TATA Communications formerly
24560 1180 345 206 Bharti Airtel Ltd., Telemedia
9829 1165 989 28 National Internet Backbone
9583 1087 80 503 Sify Limited
7552 990 1062 11 Vietel Corporation
4808 966 2004 273 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 3554 3817 223 BellSouth.net Inc.
7029 1934 1042 210 Windstream Communications Inc
18566 1913 365 237 Covad Communications Co.
1785 1833 680 121 PaeTec Communications, Inc.
4323 1626 1099 392 tw telecom holdings, inc.
20115 1590 1541 635 Charter Communications
22773 1457 2907 100 Cox Communications Inc.
19262 1394 4728 400 Verizon Online LLC
30036 1384 250 675 Mediacom Communications Corp
7018 1347 7083 884 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 1437 352 13 Corbina telecom
6830 634 1890 410 UPC Broadband
34984 577 108 179 BILISIM TELEKOM
20940 547 184 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 503 8169 385 Deutsche Telekom AG
3292 481 2082 408 TDC Data Networks
12479 481 593 7 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
29049 424 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 1680 310 154 Types of queries are: POCs, o
28573 1357 1014 68 Types of queries are: POCs, o
8151 1267 2822 340 Uninet S.A. de C.V.
7303 1163 683 175 Telecom Argentina S.A.
14420 636 59 87 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
27947 566 72 79 Telconet S.A
6503 561 450 70 Axtel, S.A.B. de C.V.
3816 538 233 95 Types of queries are: POCs, o
7738 526 1050 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 785 147 35 LINKdotNET AS number
8452 503 445 11 TEDATA
15475 445 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 277 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 192 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 3554 3817 223 BellSouth.net Inc.
7029 1934 1042 210 Windstream Communications Inc
4766 1927 11039 649 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
1785 1833 680 121 PaeTec Communications, Inc.
10620 1680 310 154 Types of queries are: POCs, o
17974 1648 512 38 PT Telekomunikasi Indonesia
4323 1626 1099 392 tw telecom holdings, inc.
7545 1607 303 85 TPG Internet Pty Ltd
20115 1590 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 1934 1724 Windstream Communications Inc
1785 1833 1712 PaeTec Communications, Inc.
18566 1913 1676 Covad Communications Co.
17974 1648 1610 PT Telekomunikasi Indonesia
10620 1680 1526 Types of queries are: POCs, o
7545 1607 1522 TPG Internet Pty Ltd
8402 1437 1424 Corbina telecom
4755 1534 1361 TATA Communications formerly
22773 1457 1357 Cox Communications Inc.
28573 1357 1289 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 /14:804 /15:1419 /16:11957 /17:5974 /18:9989
/19:19968 /20:27137 /21:27148 /22:36392 /23:34524 /24:193135
/25:12 /26:20 /27:24 /28:156 /29:127 /30:59
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2190 3554 BellSouth.net Inc.
18566 1870 1913 Covad Communications Co.
7029 1609 1934 Windstream Communications Inc
10620 1575 1680 Types of queries are: POCs, o
8402 1414 1437 Corbina telecom
30036 1346 1384 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1055 1833 PaeTec Communications, Inc.
7011 1048 1167 Frontier Communications of Am
22773 946 1457 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:386 2:487 4:15 5:1 6:3 8:353
12:1955 13:1 14:526 15:11 16:3 17:7
20:9 23:55 24:1687 27:960 31:576 32:60
33:4 34:2 36:4 38:743 40:108 41:2513
42:49 44:3 46:996 47:3 49:264 50:441
52:13 55:5 56:2 57:36 58:838 59:488
60:360 61:1014 62:1091 63:1926 64:4020 65:2300
66:3998 67:1962 68:1099 69:3195 70:833 71:378
72:1854 74:2506 75:363 76:339 77:883 78:858
79:478 80:1125 81:828 82:507 83:508 84:624
85:1118 86:411 87:873 88:355 89:1603 90:268
91:4161 92:527 93:1379 94:1294 95:1008 96:431
97:280 98:899 99:37 101:84 103:344 106:70
107:61 108:54 109:1037 110:633 111:790 112:313
113:461 114:562 115:667 116:858 117:679 118:855
119:1228 120:336 121:677 122:1595 123:1019 124:1305
125:1328 128:207 129:169 130:160 131:582 132:113
133:21 134:206 135:54 136:210 137:137 138:288
139:122 140:473 141:291 142:369 143:424 144:496
145:63 146:466 147:215 148:613 149:265 150:146
151:193 152:444 153:179 154:6 155:383 156:204
157:329 158:151 159:398 160:319 161:198 162:335
163:164 164:500 165:363 166:536 167:435 168:738
169:143 170:865 171:85 172:1 173:1667 174:656
175:417 176:269 177:291 178:1052 180:1094 181:37
182:619 183:205 184:368 185:1 186:1415 187:669
188:923 189:855 190:5096 192:5860 193:5017 194:3530
195:3104 196:1239 197:183 198:3576 199:4097 200:5447
201:1642 202:8248 203:8376 204:4229 205:2345 206:2585
207:2754 208:4041 209:3426 210:2629 211:1451 212:2080
213:1798 214:794 215:90 216:4889 217:1600 218:551
219:334 220:1201 221:497 222:293 223:280
End of report