Routing Table Report 08:00 +10GMT Sat 12 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 345038
Prefixes after maximum aggregation: 156692
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 172757
Total ASes present in the Internet Routing Table: 35884
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31036
Origin ASes announcing only one prefix: 14953
Transit ASes present in the Internet Routing Table: 4848
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1370
Unregistered ASNs in the Routing Table: 299
Number of 32-bit ASNs allocated by the RIRs: 1191
Prefixes from 32-bit ASNs in the Routing Table: 1850
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 249
Number of addresses announced to Internet: 2483900672
Equivalent to 148 /8s, 13 /16s and 81 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 141569
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83059
Total APNIC prefixes after maximum aggregation: 28222
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80708
Unique aggregates announced from the APNIC address blocks: 36103
APNIC Region origin ASes present in the Internet Routing Table: 4284
APNIC Prefixes per ASN: 18.84
APNIC Region origin ASes announcing only one prefix: 1208
APNIC Region transit ASes present in the Internet Routing Table: 653
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 594556416
Equivalent to 35 /8s, 112 /16s and 54 /24s
Percentage of available APNIC address space announced: 75.4
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: 137218
Total ARIN prefixes after maximum aggregation: 70097
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 109955
Unique aggregates announced from the ARIN address blocks: 44959
ARIN Region origin ASes present in the Internet Routing Table: 14166
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5404
ARIN Region transit ASes present in the Internet Routing Table: 1393
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796384256
Equivalent to 47 /8s, 119 /16s and 220 /24s
Percentage of available ARIN address space announced: 63.3
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: 83136
Total RIPE prefixes after maximum aggregation: 47091
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 76433
Unique aggregates announced from the RIPE address blocks: 49913
RIPE Region origin ASes present in the Internet Routing Table: 15400
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7772
RIPE Region transit ASes present in the Internet Routing Table: 2402
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 481188864
Equivalent to 28 /8s, 174 /16s and 92 /24s
Percentage of available RIPE address space announced: 77.5
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: 31607
Total LACNIC prefixes after maximum aggregation: 7277
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30640
Unique aggregates announced from the LACNIC address blocks: 16136
LACNIC Region origin ASes present in the Internet Routing Table: 1426
LACNIC Prefixes per ASN: 21.49
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 81346304
Equivalent to 4 /8s, 217 /16s and 63 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7500
Total AfriNIC prefixes after maximum aggregation: 1821
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5881
Unique aggregates announced from the AfriNIC address blocks: 1852
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.58
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22030080
Equivalent to 1 /8s, 80 /16s and 39 /24s
Percentage of available AfriNIC address space announced: 32.8
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 1864 9500 589 Korea Telecom (KIX)
7545 1578 301 84 TPG Internet Pty Ltd
4755 1472 653 157 TATA Communications formerly
17974 1412 460 30 PT Telekomunikasi Indonesia
24560 1120 324 186 Bharti Airtel Ltd., Telemedia
9583 1047 76 487 Sify Limited
9829 1005 868 53 National Internet Backbone
17488 942 162 100 Hathway IP Over Cable Interne
4808 938 2032 271 CNCGROUP IP network China169
18101 935 117 141 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 3681 3839 260 BellSouth.net Inc.
4323 2583 1125 404 tw telecom holdings, inc.
19262 1830 4953 282 Verizon Online LLC
1785 1795 681 131 PaeTec Communications, Inc.
6478 1538 298 75 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1520 325 178 Covad Communications Co.
7018 1382 6868 902 AT&T Services, Inc.
11492 1311 236 66 CABLE ONE, INC.
2386 1297 538 936 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 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
3292 450 1996 389 TDC Data Networks
34984 450 95 201 BILISIM TELEKOM
8866 443 133 23 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 406 7604 352 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 401 577 6 France Telecom Espana SA
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 1384 258 163 Types of queries are: POCs, o
8151 1223 2681 361 Uninet S.A. de C.V.
28573 1220 963 83 Types of queries are: POCs, o
6503 1174 354 74 Axtel, S.A.B. de C.V.
7303 897 463 134 Telecom Argentina S.A.
14420 634 51 88 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 516 225 96 Types of queries are: POCs, o
11172 487 99 83 Alestra, S. de R.L. de C.V.
7738 479 922 30 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
8452 791 445 11 TEDATA
24863 767 147 37 LINKdotNET AS number
15475 420 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 140 422 86 MTN Network Solutions
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 3681 3839 260 BellSouth.net Inc.
4323 2583 1125 404 tw telecom holdings, inc.
4766 1864 9500 589 Korea Telecom (KIX)
23456 1850 473 1042 32-bit ASN transition
19262 1830 4953 282 Verizon Online LLC
1785 1795 681 131 PaeTec Communications, Inc.
7545 1578 301 84 TPG Internet Pty Ltd
6478 1538 298 75 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1520 325 178 Covad Communications Co.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2583 2179 tw telecom holdings, inc.
1785 1795 1664 PaeTec Communications, Inc.
19262 1830 1548 Verizon Online LLC
7545 1578 1494 TPG Internet Pty Ltd
6478 1538 1463 AT&T Services, Inc.
17974 1412 1382 PT Telekomunikasi Indonesia
18566 1520 1342 Covad Communications Co.
4755 1472 1315 TATA Communications formerly
4766 1864 1275 Korea Telecom (KIX)
11492 1311 1245 CABLE ONE, INC.
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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.
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
1.5.0.0/16 38639 for assignment to JPNIC membe
1.6.0.0/15 38639 for assignment to JPNIC membe
1.8.0.0/16 38639 for assignment to JPNIC membe
1.20.0.0/16 38639 for assignment to JPNIC membe
1.32.0.0/16 38639 for assignment to JPNIC membe
1.37.0.0/16 38639 for assignment to JPNIC membe
1.187.0.0/16 38639 for assignment to JPNIC membe
14.0.0.0/24 38639 for assignment to JPNIC membe
14.0.1.0/24 38639 for assignment to JPNIC membe
14.0.2.0/23 38639 for assignment to JPNIC membe
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 /8:25 /9:11 /10:26 /11:73 /12:217
/13:445 /14:766 /15:1370 /16:11520 /17:5632 /18:9314
/19:19108 /20:24626 /21:25112 /22:33347 /23:31770 /24:181222
/25:11 /26:17 /27:24 /28:153 /29:94 /30:48
/31:0 /32:107
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3681 BellSouth.net Inc.
18566 1498 1520 Covad Communications Co.
6478 1492 1538 AT&T Services, Inc.
4323 1389 2583 tw telecom holdings, inc.
10620 1275 1384 Types of queries are: POCs, o
11492 1268 1311 CABLE ONE, INC.
7011 1063 1163 Frontier Communications of Am
1785 1055 1795 PaeTec Communications, Inc.
23456 1047 1850 32-bit ASN transition
6503 952 1174 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:270 2:59 4:14 5:1 8:340 12:2024
13:1 14:405 15:15 16:3 17:8 20:9
23:3 24:1513 27:603 31:2 32:56 33:4
34:2 36:2 37:1 38:709 39:1 40:101
41:2303 42:13 44:3 46:704 47:4 49:164
50:200 52:13 55:2 56:2 57:29 58:756
59:489 60:384 61:1033 62:1013 63:1918 64:3838
65:2348 66:4327 67:1775 68:1062 69:2885 70:701
71:399 72:2008 73:1 74:2346 75:283 76:342
77:840 78:699 79:447 80:1091 81:816 82:518
83:470 84:644 85:1045 86:571 87:766 88:353
89:1569 90:175 91:3596 92:488 93:1047 94:1218
95:776 96:466 97:251 98:804 99:34 101:54
106:1 107:4 108:129 109:904 110:475 111:712
112:310 113:383 114:475 115:704 116:941 117:658
118:706 119:1024 120:254 121:726 122:1609 123:1035
124:1284 125:1260 128:215 129:162 130:165 131:554
132:98 133:20 134:213 135:49 136:209 137:143
138:296 139:108 140:464 141:203 142:360 143:362
144:487 145:52 146:417 147:194 148:621 149:275
150:154 151:229 152:296 153:180 154:2 155:377
156:176 157:316 158:131 159:364 160:312 161:201
162:276 163:150 164:486 165:348 166:497 167:410
168:723 169:155 170:756 171:69 172:2 173:1259
174:516 175:326 177:35 178:804 180:803 181:4
182:373 183:242 184:233 186:1043 187:835 188:919
189:1031 190:4623 192:5696 193:4778 194:3483 195:2949
196:1209 197:4 198:3499 199:3816 200:5556 201:1569
202:8074 203:8366 204:4028 205:2247 206:2550 207:2991
208:3904 209:3451 210:2636 211:1340 212:1947 213:1714
214:746 215:63 216:4822 217:1655 218:546 219:378
220:1191 221:457 222:313 223:98
End of report
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