Routing Table Report 08:00 +10GMT Tue 02 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 359887
Prefixes after maximum aggregation: 163839
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181782
Total ASes present in the Internet Routing Table: 36883
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 31797
Origin ASes announcing only one prefix: 15307
Transit ASes present in the Internet Routing Table: 5086
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2369
Unregistered ASNs in the Routing Table: 654
Number of 32-bit ASNs allocated by the RIRs: 1608
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2979
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 114
Number of addresses announced to Internet: 2495203072
Equivalent to 148 /8s, 185 /16s and 199 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 148660
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86757
Total APNIC prefixes after maximum aggregation: 29075
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84215
Unique aggregates announced from the APNIC address blocks: 37986
APNIC Region origin ASes present in the Internet Routing Table: 4468
APNIC Prefixes per ASN: 18.85
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.1
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: 611506176
Equivalent to 36 /8s, 114 /16s and 216 /24s
Percentage of available APNIC address space announced: 77.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 140540
Total ARIN prefixes after maximum aggregation: 72549
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112665
Unique aggregates announced from the ARIN address blocks: 46725
ARIN Region origin ASes present in the Internet Routing Table: 14449
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5552
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803222016
Equivalent to 47 /8s, 224 /16s and 50 /24s
Percentage of available ARIN address space announced: 63.8
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: 87441
Total RIPE prefixes after maximum aggregation: 49411
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80738
Unique aggregates announced from the RIPE address blocks: 53078
RIPE Region origin ASes present in the Internet Routing Table: 15831
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7906
RIPE Region transit ASes present in the Internet Routing Table: 2504
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484398848
Equivalent to 28 /8s, 223 /16s and 87 /24s
Percentage of available RIPE address space announced: 78.0
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: 33227
Total LACNIC prefixes after maximum aggregation: 7530
LACNIC Deaggregation factor: 4.41
Prefixes being announced from the LACNIC address blocks: 32620
Unique aggregates announced from the LACNIC address blocks: 17264
LACNIC Region origin ASes present in the Internet Routing Table: 1482
LACNIC Prefixes per ASN: 22.01
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 87224832
Equivalent to 5 /8s, 50 /16s and 242 /24s
Percentage of available LACNIC address space announced: 57.8
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: 8251
Total AfriNIC prefixes after maximum aggregation: 1982
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6544
Unique aggregates announced from the AfriNIC address blocks: 2028
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26907392
Equivalent to 1 /8s, 154 /16s and 147 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1929 11038 644 Korea Telecom (KIX)
7545 1556 301 84 TPG Internet Pty Ltd
17974 1534 508 32 PT Telekomunikasi Indonesia
4755 1512 375 169 TATA Communications formerly
24560 1195 336 187 Bharti Airtel Ltd., Telemedia
9829 1114 929 42 National Internet Backbone
9583 1057 77 496 Sify Limited
17488 972 193 118 Hathway IP Over Cable Interne
7552 952 1062 11 Vietel Corporation
4808 951 2005 275 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 3619 3818 237 BellSouth.net Inc.
18566 1911 364 239 Covad Communications Co.
1785 1815 681 121 PaeTec Communications, Inc.
7029 1646 1031 210 Windstream Communications Inc
4323 1615 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
19262 1413 4792 392 Verizon Online LLC
22773 1405 2900 90 Cox Communications Inc.
7018 1370 7085 898 AT&T Services, Inc.
2386 1256 520 904 AT&T Data Communications Serv
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
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 BILISIM TELEKOM
6830 511 1788 316 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 466 133 359 Akamai Technologies European
12479 456 593 7 France Telecom Espana SA
8866 454 133 26 Bulgarian Telecommunication C
29049 433 32 55 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
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 1550 288 169 Types of queries are: POCs, o
28573 1261 995 73 Types of queries are: POCs, o
8151 1252 2730 350 Uninet S.A. de C.V.
7303 1043 577 162 Telecom Argentina S.A.
6503 752 451 78 Axtel, S.A.B. de C.V.
14420 701 56 82 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 511 101 90 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
8452 797 445 11 TEDATA
24863 784 147 40 LINKdotNET AS number
15475 514 74 8 Nile Online
36992 314 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 228 13 7 Starcomms Nigeria Limited
24835 177 78 10 RAYA Telecom - Egypt
15706 175 32 6 Sudatel Internet Exchange Aut
29571 158 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 3619 3818 237 BellSouth.net Inc.
23456 2979 720 1603 32-bit ASN transition
4766 1929 11038 644 Korea Telecom (KIX)
18566 1911 364 239 Covad Communications Co.
1785 1815 681 121 PaeTec Communications, Inc.
7029 1646 1031 210 Windstream Communications Inc
4323 1615 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
7545 1556 301 84 TPG Internet Pty Ltd
10620 1550 288 169 Types of queries are: POCs, o
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 1815 1694 PaeTec Communications, Inc.
18566 1911 1672 Covad Communications Co.
17974 1534 1502 PT Telekomunikasi Indonesia
7545 1556 1472 TPG Internet Pty Ltd
7029 1646 1436 Windstream Communications Inc
10620 1550 1381 Types of queries are: POCs, o
23456 2979 1376 32-bit ASN transition
4755 1512 1343 TATA Communications formerly
22773 1405 1315 Cox Communications Inc.
4766 1929 1285 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<<
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 /8:21 /9:12 /10:27 /11:79 /12:232
/13:457 /14:781 /15:1382 /16:11998 /17:5868 /18:9787
/19:19592 /20:26260 /21:26243 /22:34713 /23:33569 /24:188359
/25:12 /26:19 /27:23 /28:158 /29:111 /30:59
/31:0 /32:125
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2241 3619 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1463 2979 32-bit ASN transition
10620 1445 1550 Types of queries are: POCs, o
7029 1322 1646 Windstream Communications Inc
11492 1096 1141 CABLE ONE, INC.
7011 1057 1159 Frontier Communications of Am
1785 1053 1815 PaeTec Communications, Inc.
6478 970 998 AT&T Services, Inc.
22773 904 1405 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:341 2:47 4:16 5:1 6:3 8:341
12:1958 13:1 14:485 15:15 16:3 17:5
20:10 23:18 24:1677 27:856 31:512 32:59
33:4 34:2 36:4 38:723 40:104 41:2562
42:36 44:3 46:1044 47:3 49:200 50:378
52:13 54:2 55:5 56:2 57:33 58:815
59:481 60:376 61:1024 62:1061 63:1933 64:3969
65:2299 66:3899 67:1888 68:1102 69:3026 70:776
71:373 72:1860 74:2431 75:328 76:340 77:861
78:706 79:481 80:1124 81:873 82:505 83:469
84:689 85:1068 86:517 87:768 88:334 89:1524
90:224 91:3992 92:526 93:1117 94:1332 95:871
96:415 97:263 98:891 99:37 101:78 103:177
106:79 107:27 108:73 109:1033 110:611 111:717
112:298 113:403 114:557 115:663 116:968 117:653
118:810 119:1161 120:315 121:641 122:1602 123:981
124:1337 125:1282 128:208 129:163 130:163 131:574
132:106 133:21 134:206 135:52 136:213 137:135
138:296 139:113 140:459 141:257 142:387 143:419
144:482 145:57 146:450 147:215 148:614 149:251
150:151 151:189 152:339 153:182 154:4 155:400
156:196 157:324 158:140 159:389 160:316 161:196
162:307 163:153 164:507 165:364 166:532 167:432
168:739 169:151 170:834 171:81 172:1 173:1618
174:610 175:373 176:149 177:188 178:1006 180:874
181:25 182:492 183:234 184:341 185:1 186:1304
187:740 188:901 189:969 190:5016 192:5880 193:4979
194:3508 195:3064 196:1200 197:108 198:3531 199:3955
200:5498 201:1470 202:8212 203:8338 204:4173 205:2306
206:2580 207:2737 208:3982 209:3380 210:2598 211:1445
212:2106 213:1766 214:755 215:67 216:4869 217:1629
218:537 219:342 220:1195 221:494 222:310 223:236
End of report
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