Routing Table Report 08:00 +10GMT Mon 28 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 342917
Prefixes after maximum aggregation: 156199
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171759
Total ASes present in the Internet Routing Table: 35794
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 30956
Origin ASes announcing only one prefix: 14953
Transit ASes present in the Internet Routing Table: 4838
Transit-only ASes present in the Internet Routing Table: 111
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1332
Unregistered ASNs in the Routing Table: 270
Number of 32-bit ASNs allocated by the RIRs: 1155
Prefixes from 32-bit ASNs in the Routing Table: 1792
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 196
Number of addresses announced to Internet: 2383578368
Equivalent to 142 /8s, 18 /16s and 133 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 140369
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82520
Total APNIC prefixes after maximum aggregation: 28180
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80146
Unique aggregates announced from the APNIC address blocks: 35871
APNIC Region origin ASes present in the Internet Routing Table: 4291
APNIC Prefixes per ASN: 18.68
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 658
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 591717888
Equivalent to 35 /8s, 68 /16s and 230 /24s
Percentage of available APNIC address space announced: 75.0
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: 136628
Total ARIN prefixes after maximum aggregation: 70078
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109423
Unique aggregates announced from the ARIN address blocks: 45025
ARIN Region origin ASes present in the Internet Routing Table: 14127
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5374
ARIN Region transit ASes present in the Internet Routing Table: 1386
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787465728
Equivalent to 46 /8s, 239 /16s and 198 /24s
Percentage of available ARIN address space announced: 62.6
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: 82692
Total RIPE prefixes after maximum aggregation: 46736
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75988
Unique aggregates announced from the RIPE address blocks: 49358
RIPE Region origin ASes present in the Internet Routing Table: 15347
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7783
RIPE Region transit ASes present in the Internet Routing Table: 2386
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460929280
Equivalent to 27 /8s, 121 /16s and 57 /24s
Percentage of available RIPE address space announced: 74.3
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: 31316
Total LACNIC prefixes after maximum aggregation: 7268
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30309
Unique aggregates announced from the LACNIC address blocks: 15928
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.27
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80937984
Equivalent to 4 /8s, 211 /16s and 4 /24s
Percentage of available LACNIC address space announced: 53.6
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: 7313
Total AfriNIC prefixes after maximum aggregation: 1819
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 5729
Unique aggregates announced from the AfriNIC address blocks: 1830
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.17
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21886720
Equivalent to 1 /8s, 77 /16s and 247 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1865 9493 587 Korea Telecom (KIX)
7545 1591 302 85 TPG Internet Pty Ltd
4755 1419 637 165 TATA Communications formerly
17974 1404 467 30 PT Telekomunikasi Indonesia
24560 1115 323 184 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 943 2034 271 CNCGROUP IP network China169
17488 938 161 102 Hathway IP Over Cable Interne
18101 932 117 139 Reliance Infocom Ltd Internet
9829 895 761 45 National Internet Backbone
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 3690 3855 262 BellSouth.net Inc.
4323 2601 1125 404 tw telecom holdings, inc.
1785 1789 697 131 PaeTec Communications, Inc.
19262 1787 4954 285 Verizon Online LLC
20115 1528 1535 647 Charter Communications
6478 1517 296 112 AT&T Services, Inc.
18566 1444 320 155 Covad Communications Co.
7018 1380 6740 901 AT&T Services, Inc.
2386 1296 538 939 AT&T Data Communications Serv
11492 1285 236 70 CABLE ONE, 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
9116 542 328 31 Goldenlines main autonomous s
6830 512 1780 318 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 465 98 145 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 442 133 23 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 408 7604 355 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 400 1803 314 >>UNKNOWN<<
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 1383 257 166 Types of queries are: POCs, o
28573 1214 961 82 Types of queries are: POCs, o
8151 1206 2666 357 Uninet S.A. de C.V.
6503 1162 354 74 Axtel, S.A.B. de C.V.
7303 883 463 132 Telecom Argentina S.A.
14420 641 57 94 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 510 221 100 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 476 37 42 Telefonica del Sur 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 688 147 37 LINKdotNET AS number
8452 637 445 11 TEDATA
15475 474 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 156 439 88 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 3690 3855 262 BellSouth.net Inc.
4323 2601 1125 404 tw telecom holdings, inc.
4766 1865 9493 587 Korea Telecom (KIX)
23456 1792 446 1006 32-bit ASN transition
1785 1789 697 131 PaeTec Communications, Inc.
19262 1787 4954 285 Verizon Online LLC
7545 1591 302 85 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1517 296 112 AT&T Services, Inc.
18566 1444 320 155 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 2601 2197 tw telecom holdings, inc.
1785 1789 1658 PaeTec Communications, Inc.
7545 1591 1506 TPG Internet Pty Ltd
19262 1787 1502 Verizon Online LLC
6478 1517 1405 AT&T Services, Inc.
17974 1404 1374 PT Telekomunikasi Indonesia
18566 1444 1289 Covad Communications Co.
4766 1865 1278 Korea Telecom (KIX)
4755 1419 1254 TATA Communications formerly
10620 1383 1217 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 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
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.
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Comcast Cable Communications,
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /9:10 /10:26 /11:72 /12:216
/13:443 /14:764 /15:1369 /16:11497 /17:5634 /18:9315
/19:18981 /20:24455 /21:24895 /22:33166 /23:31524 /24:180093
/25:11 /26:17 /27:23 /28:152 /29:91 /30:41
/31:0 /32:102
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2276 3690 BellSouth.net Inc.
6478 1471 1517 AT&T Services, Inc.
18566 1422 1444 Covad Communications Co.
4323 1401 2601 tw telecom holdings, inc.
10620 1274 1383 Types of queries are: POCs, o
11492 1242 1285 CABLE ONE, INC.
7011 1056 1157 Frontier Communications of Am
1785 1054 1789 PaeTec Communications, Inc.
23456 1024 1792 32-bit ASN transition
6503 944 1162 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)
----------------------------------------------
1:257 2:44 4:13 5:1 8:334 12:2026
13:1 14:390 15:15 16:3 17:8 20:9
23:1 24:1493 27:588 32:56 33:4 34:2
37:1 38:702 40:101 41:2233 44:3 46:641
47:4 49:153 50:96 52:12 55:2 56:2
57:28 58:761 59:473 60:381 61:1012 62:1043
63:1921 64:3821 65:2361 66:4246 67:1783 68:1044
69:2868 70:729 71:399 72:1991 73:1 74:2345
75:292 76:347 77:872 78:695 79:446 80:1067
81:812 82:525 83:474 84:633 85:1047 86:576
87:756 88:355 89:1576 90:157 91:3538 92:495
93:1049 94:1211 95:770 96:450 97:250 98:782
99:33 101:31 107:4 108:117 109:929 110:474
111:711 112:307 113:370 114:478 115:644 116:929
117:677 118:678 119:1025 120:246 121:674 122:1612
123:1054 124:1274 125:1254 128:214 129:150 130:167
131:557 132:101 133:20 134:212 135:49 136:212
137:143 138:294 139:115 140:467 141:203 142:338
143:381 144:485 145:51 146:433 147:198 148:609
149:262 150:160 151:230 152:295 153:180 154:2
155:377 156:173 157:315 158:128 159:375 160:314
161:199 162:276 163:146 164:486 165:339 166:503
167:409 168:733 169:156 170:751 171:69 172:2
173:1224 174:502 175:319 176:1 177:23 178:771
180:806 181:2 182:352 183:241 184:213 186:1022
187:823 188:899 189:1044 190:4413 192:5721 193:4790
194:3499 195:2949 196:1200 197:3 198:3507 199:3805
200:5571 201:1572 202:8057 203:8338 204:4013 205:2283
206:2542 207:2996 208:3921 209:3443 210:2590 211:1340
212:1946 213:1735 214:758 215:63 216:4835 217:1645
218:535 219:364 220:1195 221:436 222:309 223:100
End of report
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