Routing Table Report 08:00 +10GMT Fri 07 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 369828
Prefixes after maximum aggregation: 166875
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185393
Total ASes present in the Internet Routing Table: 37318
Prefixes per ASN: 9.91
Origin-only ASes present in the Internet Routing Table: 32213
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5105
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: 31
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2368
Unregistered ASNs in the Routing Table: 901
Number of 32-bit ASNs allocated by the RIRs: 1825
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3374
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2499600640
Equivalent to 148 /8s, 252 /16s and 225 /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: 153558
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89259
Total APNIC prefixes after maximum aggregation: 29492
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 86682
Unique aggregates announced from the APNIC address blocks: 38008
APNIC Region origin ASes present in the Internet Routing Table: 4519
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1265
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: 627808256
Equivalent to 37 /8s, 107 /16s and 152 /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: 142788
Total ARIN prefixes after maximum aggregation: 73531
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115227
Unique aggregates announced from the ARIN address blocks: 48083
ARIN Region origin ASes present in the Internet Routing Table: 14632
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5651
ARIN Region transit ASes present in the Internet Routing Table: 1494
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: 804499200
Equivalent to 47 /8s, 243 /16s and 175 /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: 90597
Total RIPE prefixes after maximum aggregation: 50400
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83240
Unique aggregates announced from the RIPE address blocks: 54173
RIPE Region origin ASes present in the Internet Routing Table: 15988
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7958
RIPE Region transit ASes present in the Internet Routing Table: 2496
Average RIPE Region AS path length visible: 3.4
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: 490466048
Equivalent to 29 /8s, 59 /16s and 235 /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: 34566
Total LACNIC prefixes after maximum aggregation: 7713
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 34065
Unique aggregates announced from the LACNIC address blocks: 18052
LACNIC Region origin ASes present in the Internet Routing Table: 1517
LACNIC Prefixes per ASN: 22.46
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.1
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: 90218240
Equivalent to 5 /8s, 96 /16s and 159 /24s
Percentage of available LACNIC address space announced: 59.7
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: 8537
Total AfriNIC prefixes after maximum aggregation: 2013
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6625
Unique aggregates announced from the AfriNIC address blocks: 1974
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.60
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 27801344
Equivalent to 1 /8s, 168 /16s and 55 /24s
Percentage of available AfriNIC address space announced: 41.4
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 1659 512 38 PT Telekomunikasi Indonesia
7545 1605 303 85 TPG Internet Pty Ltd
4755 1532 378 174 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 989 1062 11 Vietel Corporation
4808 959 2003 270 CNCGROUP IP network China169
18101 953 165 143 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 3556 3817 225 BellSouth.net Inc.
18566 1913 365 237 Covad Communications Co.
7029 1911 1041 208 Windstream Communications Inc
1785 1833 680 121 PaeTec Communications, Inc.
4323 1626 1099 393 tw telecom holdings, inc.
20115 1591 1541 635 Charter Communications
22773 1458 2907 100 Cox Communications Inc.
19262 1394 4728 400 Verizon Online LLC
30036 1382 250 674 Mediacom Communications Corp
7018 1347 7084 885 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 1427 352 13 Corbina telecom
6830 634 1890 410 UPC Broadband
34984 577 108 179 BILISIM TELEKOM
20940 546 184 420 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 502 8169 384 Deutsche Telekom AG
3292 481 2082 408 TDC Data Networks
12479 480 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
29049 423 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 1360 1014 68 Types of queries are: POCs, o
8151 1268 2820 339 Uninet S.A. de C.V.
7303 1164 683 175 Telecom Argentina S.A.
14420 756 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 536 232 98 Types of queries are: POCs, o
11172 520 101 95 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 781 146 33 LINKdotNET AS number
8452 720 445 11 TEDATA
15475 445 74 8 Nile Online
36992 297 415 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
12258 199 28 59 Vodacom Internet Company
33776 197 13 13 Starcomms Nigeria Limited
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 3556 3817 225 BellSouth.net Inc.
4766 1927 11039 649 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
7029 1911 1041 208 Windstream Communications Inc
1785 1833 680 121 PaeTec Communications, Inc.
10620 1680 310 154 Types of queries are: POCs, o
17974 1659 512 38 PT Telekomunikasi Indonesia
4323 1626 1099 393 tw telecom holdings, inc.
7545 1605 303 85 TPG Internet Pty Ltd
20115 1591 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
1785 1833 1712 PaeTec Communications, Inc.
7029 1911 1703 Windstream Communications Inc
18566 1913 1676 Covad Communications Co.
17974 1659 1621 PT Telekomunikasi Indonesia
10620 1680 1526 Types of queries are: POCs, o
7545 1605 1520 TPG Internet Pty Ltd
8402 1427 1414 Corbina telecom
4755 1532 1358 TATA Communications formerly
22773 1458 1358 Cox Communications Inc.
28573 1360 1292 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 /16:11956 /17:5965 /18:9985
/19:19951 /20:27097 /21:27130 /22:36405 /23:34547 /24:193202
/25:12 /26:20 /27:24 /28:157 /29:125 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2192 3556 BellSouth.net Inc.
18566 1870 1913 Covad Communications Co.
7029 1588 1911 Windstream Communications Inc
10620 1575 1680 Types of queries are: POCs, o
8402 1404 1427 Corbina telecom
30036 1344 1382 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1055 1833 PaeTec Communications, Inc.
7011 1050 1169 Frontier Communications of Am
22773 947 1458 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:383 2:480 4:15 5:1 6:3 8:352
12:1949 13:1 14:525 15:11 16:3 17:7
20:10 23:53 24:1645 27:957 31:577 32:60
33:4 34:2 36:4 38:745 40:108 41:2655
42:48 44:3 46:997 47:3 49:264 50:435
52:13 55:5 56:2 57:36 58:830 59:488
60:362 61:1016 62:1088 63:1927 64:3999 65:2299
66:3989 67:1958 68:1100 69:3192 70:830 71:377
72:1848 74:2483 75:361 76:340 77:884 78:874
79:487 80:1127 81:837 82:505 83:506 84:610
85:1111 86:410 87:875 88:353 89:1601 90:269
91:4151 92:529 93:1375 94:1310 95:1007 96:431
97:280 98:896 99:37 101:85 103:336 106:70
107:61 108:54 109:1038 110:635 111:790 112:313
113:459 114:554 115:670 116:862 117:678 118:853
119:1208 120:335 121:664 122:1593 123:1017 124:1301
125:1327 128:207 129:169 130:160 131:576 132:104
133:21 134:206 135:54 136:211 137:136 138:288
139:122 140:474 141:291 142:370 143:409 144:490
145:63 146:466 147:215 148:615 149:264 150:146
151:193 152:444 153:178 154:6 155:387 156:203
157:329 158:151 159:397 160:317 161:196 162:333
163:165 164:508 165:365 166:537 167:433 168:740
169:143 170:865 171:85 172:1 173:1668 174:657
175:407 176:273 177:285 178:1053 180:1090 181:37
182:617 183:198 184:377 185:1 186:1511 187:667
188:928 189:857 190:5175 192:5872 193:5019 194:3531
195:3104 196:1248 197:187 198:3572 199:4099 200:5437
201:1642 202:8287 203:8364 204:4222 205:2341 206:2585
207:2755 208:4017 209:3423 210:2625 211:1448 212:2072
213:1782 214:783 215:89 216:4892 217:1606 218:551
219:333 220:1201 221:497 222:293 223:280
End of report
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