Routing Table Report 08:00 +10GMT Thu 06 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 369741
Prefixes after maximum aggregation: 166834
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185277
Total ASes present in the Internet Routing Table: 37328
Prefixes per ASN: 9.91
Origin-only ASes present in the Internet Routing Table: 32217
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5111
Transit-only ASes present in the Internet Routing Table: 129
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: 2284
Unregistered ASNs in the Routing Table: 894
Number of 32-bit ASNs allocated by the RIRs: 1819
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3373
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2499184128
Equivalent to 148 /8s, 246 /16s and 134 /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: 153566
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89184
Total APNIC prefixes after maximum aggregation: 29495
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86606
Unique aggregates announced from the APNIC address blocks: 37988
APNIC Region origin ASes present in the Internet Routing Table: 4523
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 682
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: 627789824
Equivalent to 37 /8s, 107 /16s and 80 /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: 142861
Total ARIN prefixes after maximum aggregation: 73532
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115308
Unique aggregates announced from the ARIN address blocks: 48095
ARIN Region origin ASes present in the Internet Routing Table: 14631
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5648
ARIN Region transit ASes present in the Internet Routing Table: 1492
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: 804488192
Equivalent to 47 /8s, 243 /16s and 132 /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: 90567
Total RIPE prefixes after maximum aggregation: 50396
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83207
Unique aggregates announced from the RIPE address blocks: 54163
RIPE Region origin ASes present in the Internet Routing Table: 15999
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7964
RIPE Region transit ASes present in the Internet Routing Table: 2504
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: 490457344
Equivalent to 29 /8s, 59 /16s and 201 /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: 34512
Total LACNIC prefixes after maximum aggregation: 7702
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 34010
Unique aggregates announced from the LACNIC address blocks: 18000
LACNIC Region origin ASes present in the Internet Routing Table: 1515
LACNIC Prefixes per ASN: 22.45
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 268
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: 89917696
Equivalent to 5 /8s, 92 /16s and 9 /24s
Percentage of available LACNIC address space announced: 59.6
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: 8538
Total AfriNIC prefixes after maximum aggregation: 1998
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6626
Unique aggregates announced from the AfriNIC address blocks: 1941
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 27660032
Equivalent to 1 /8s, 166 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 41.2
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 1928 11039 650 Korea Telecom (KIX)
17974 1652 512 38 PT Telekomunikasi Indonesia
7545 1603 303 84 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
18101 953 165 143 Reliance Infocom Ltd Internet
4808 936 2003 269 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 3556 3817 226 BellSouth.net Inc.
18566 1912 365 236 Covad Communications Co.
7029 1850 1033 207 Windstream Communications Inc
1785 1832 680 121 PaeTec Communications, Inc.
4323 1626 1098 392 tw telecom holdings, inc.
20115 1591 1541 635 Charter Communications
22773 1456 2907 100 Cox Communications Inc.
19262 1394 4728 400 Verizon Online LLC
30036 1378 249 677 Mediacom Communications Corp
7018 1348 7084 887 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 1403 352 13 Corbina telecom
34984 575 108 178 BILISIM TELEKOM
6830 556 1873 333 UPC Broadband
9116 540 326 31 Goldenlines main autonomous s
20940 533 181 417 Akamai Technologies European
3320 502 8169 384 Deutsche Telekom AG
3292 482 2082 409 TDC Data Networks
12479 479 593 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 1682 310 154 Types of queries are: POCs, o
28573 1358 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 565 72 79 Telconet S.A
6503 562 450 70 Axtel, S.A.B. de C.V.
3816 536 232 99 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 810 146 33 LINKdotNET AS number
8452 723 445 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
33776 229 13 7 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 3556 3817 226 BellSouth.net Inc.
4766 1928 11039 650 Korea Telecom (KIX)
18566 1912 365 236 Covad Communications Co.
7029 1850 1033 207 Windstream Communications Inc
1785 1832 680 121 PaeTec Communications, Inc.
10620 1682 310 154 Types of queries are: POCs, o
17974 1652 512 38 PT Telekomunikasi Indonesia
4323 1626 1098 392 tw telecom holdings, inc.
7545 1603 303 84 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 1832 1711 PaeTec Communications, Inc.
18566 1912 1676 Covad Communications Co.
7029 1850 1643 Windstream Communications Inc
17974 1652 1614 PT Telekomunikasi Indonesia
10620 1682 1528 Types of queries are: POCs, o
7545 1603 1519 TPG Internet Pty Ltd
8402 1403 1390 Corbina telecom
4755 1532 1358 TATA Communications formerly
22773 1456 1356 Cox Communications Inc.
28573 1358 1290 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 /14:803 /15:1420 /16:11952 /17:5972 /18:9990
/19:19935 /20:27100 /21:27112 /22:36458 /23:34570 /24:193064
/25:12 /26:20 /27:24 /28:156 /29:124 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2191 3556 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
10620 1577 1682 Types of queries are: POCs, o
7029 1529 1850 Windstream Communications Inc
8402 1380 1403 Corbina telecom
30036 1340 1378 Mediacom Communications Corp
11492 1113 1150 CABLE ONE, INC.
1785 1055 1832 PaeTec Communications, Inc.
7011 1050 1169 Frontier Communications of Am
22773 945 1456 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 2:470 4:15 5:1 6:3 8:352
12:1950 13:1 14:527 15:11 16:3 17:7
20:10 23:52 24:1686 27:959 31:574 32:60
33:4 34:2 36:4 38:744 40:108 41:2668
42:48 44:3 46:993 47:3 49:260 50:434
52:13 55:5 56:2 57:36 58:830 59:488
60:362 61:1015 62:1089 63:1925 64:4005 65:2302
66:3985 67:1954 68:1094 69:3188 70:825 71:377
72:1848 74:2475 75:354 76:340 77:884 78:873
79:487 80:1126 81:838 82:504 83:505 84:623
85:1111 86:406 87:874 88:354 89:1597 90:268
91:4155 92:520 93:1370 94:1313 95:993 96:431
97:279 98:898 99:37 101:85 103:340 106:70
107:61 108:54 109:1038 110:631 111:789 112:312
113:458 114:554 115:670 116:859 117:676 118:852
119:1205 120:332 121:665 122:1593 123:1017 124:1307
125:1329 128:206 129:172 130:160 131:576 132:104
133:21 134:206 135:54 136:212 137:136 138:288
139:118 140:474 141:291 142:370 143:416 144:489
145:63 146:466 147:215 148:615 149:263 150:148
151:193 152:444 153:178 154:5 155:387 156:203
157:329 158:151 159:398 160:319 161:196 162:333
163:168 164:507 165:365 166:536 167:433 168:740
169:143 170:865 171:84 172:1 173:1650 174:655
175:407 176:266 177:288 178:1053 180:1087 181:37
182:616 183:206 184:385 185:1 186:1509 187:685
188:929 189:856 190:5103 192:5870 193:5019 194:3529
195:3095 196:1235 197:171 198:3571 199:4098 200:5436
201:1640 202:8276 203:8364 204:4219 205:2344 206:2580
207:2756 208:4020 209:3420 210:2623 211:1450 212:2070
213:1796 214:788 215:90 216:4892 217:1604 218:551
219:333 220:1200 221:494 222:292 223:274
End of report