Routing Table Report 08:00 +10GMT Thu 24 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 342864
Prefixes after maximum aggregation: 156118
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171677
Total ASes present in the Internet Routing Table: 35785
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 30957
Origin ASes announcing only one prefix: 14976
Transit ASes present in the Internet Routing Table: 4828
Transit-only ASes present in the Internet Routing Table: 109
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: 269
Number of 32-bit ASNs allocated by the RIRs: 1139
Prefixes from 32-bit ASNs in the Routing Table: 1765
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 194
Number of addresses announced to Internet: 2415309824
Equivalent to 143 /8s, 246 /16s and 180 /24s
Percentage of available address space announced: 65.2
Percentage of allocated address space announced: 65.2
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: 140483
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82387
Total APNIC prefixes after maximum aggregation: 28120
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80037
Unique aggregates announced from the APNIC address blocks: 35873
APNIC Region origin ASes present in the Internet Routing Table: 4287
APNIC Prefixes per ASN: 18.67
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 657
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 590592256
Equivalent to 35 /8s, 51 /16s and 185 /24s
Percentage of available APNIC address space announced: 74.9
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: 136878
Total ARIN prefixes after maximum aggregation: 70158
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109675
Unique aggregates announced from the ARIN address blocks: 45010
ARIN Region origin ASes present in the Internet Routing Table: 14130
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5384
ARIN Region transit ASes present in the Internet Routing Table: 1387
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787540992
Equivalent to 46 /8s, 240 /16s and 236 /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: 82663
Total RIPE prefixes after maximum aggregation: 46676
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75933
Unique aggregates announced from the RIPE address blocks: 49289
RIPE Region origin ASes present in the Internet Routing Table: 15351
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7799
RIPE Region transit ASes present in the Internet Routing Table: 2379
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460698112
Equivalent to 27 /8s, 117 /16s and 178 /24s
Percentage of available RIPE address space announced: 74.2
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: 31238
Total LACNIC prefixes after maximum aggregation: 7272
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30201
Unique aggregates announced from the LACNIC address blocks: 15879
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.22
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80822528
Equivalent to 4 /8s, 209 /16s and 65 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7255
Total AfriNIC prefixes after maximum aggregation: 1796
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5699
Unique aggregates announced from the AfriNIC address blocks: 1831
AfriNIC Region origin ASes present in the Internet Routing Table: 426
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21796864
Equivalent to 1 /8s, 76 /16s and 152 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1851 9492 585 Korea Telecom (KIX)
7545 1598 302 88 TPG Internet Pty Ltd
4755 1419 638 166 TATA Communications formerly
17974 1405 467 30 PT Telekomunikasi Indonesia
24560 1114 323 183 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
4808 943 2034 271 CNCGROUP IP network China169
17488 940 161 102 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 3693 3855 262 BellSouth.net Inc.
4323 2615 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
1785 1788 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1505 295 144 AT&T Services, Inc.
18566 1443 320 155 Covad Communications Co.
7018 1380 6724 901 AT&T Services, Inc.
2386 1299 554 935 AT&T Data Communications Serv
11492 1280 236 73 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 468 267 15 Kazakhtelecom Data Network Ad
34984 464 98 144 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
20940 413 98 319 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 399 1803 313 >>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 1382 257 165 Types of queries are: POCs, o
28573 1214 961 82 Types of queries are: POCs, o
8151 1211 2663 353 Uninet S.A. de C.V.
6503 1157 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 547 310 15 Types of queries are: POCs, o
3816 511 221 100 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 686 147 37 LINKdotNET AS number
8452 673 445 11 TEDATA
15475 486 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 220 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 3693 3855 262 BellSouth.net Inc.
4323 2615 1125 406 tw telecom holdings, inc.
4766 1851 9492 585 Korea Telecom (KIX)
19262 1843 4955 283 Verizon Online LLC
1785 1788 697 131 PaeTec Communications, Inc.
23456 1765 441 994 32-bit ASN transition
7545 1598 302 88 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1505 295 144 AT&T Services, Inc.
18566 1443 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 2615 2209 tw telecom holdings, inc.
1785 1788 1657 PaeTec Communications, Inc.
19262 1843 1560 Verizon Online LLC
7545 1598 1510 TPG Internet Pty Ltd
17974 1405 1375 PT Telekomunikasi Indonesia
6478 1505 1361 AT&T Services, Inc.
18566 1443 1288 Covad Communications Co.
4766 1851 1266 Korea Telecom (KIX)
4755 1419 1253 TATA Communications formerly
10620 1382 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,
31.24.32.0/21 43082 ServerSpace Ltd
31.24.40.0/21 43988 Access Basic Server S.L.
31.24.144.0/21 49855 PLUTEX GmbH
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
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 /8:22 /9:10 /10:26 /11:72 /12:216
/13:445 /14:764 /15:1371 /16:11474 /17:5634 /18:9306
/19:18946 /20:24449 /21:24863 /22:33104 /23:31535 /24:180171
/25:11 /26:17 /27:25 /28:156 /29:95 /30:45
/31:0 /32:107
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2279 3693 BellSouth.net Inc.
6478 1460 1505 AT&T Services, Inc.
18566 1421 1443 Covad Communications Co.
4323 1405 2615 tw telecom holdings, inc.
10620 1273 1382 Types of queries are: POCs, o
11492 1237 1280 CABLE ONE, INC.
7011 1058 1161 Frontier Communications of Am
1785 1054 1788 PaeTec Communications, Inc.
23456 1011 1765 32-bit ASN transition
19262 954 1843 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:232 2:40 4:13 5:1 8:335 12:2029
13:1 14:386 15:15 16:3 17:8 20:9
23:1 24:1489 27:593 32:56 33:4 34:2
37:1 38:702 40:101 41:2212 44:3 46:654
47:4 49:151 50:93 52:12 55:3 56:2
57:28 58:762 59:473 60:382 61:1011 62:1049
63:1934 64:3816 65:2357 66:4240 67:1784 68:1029
69:2930 70:736 71:405 72:2014 73:1 74:2346
75:291 76:346 77:872 78:693 79:451 80:1060
81:821 82:525 83:476 84:632 85:1043 86:570
87:753 88:355 89:1578 90:157 91:3536 92:493
93:1049 94:1204 95:771 96:451 97:252 98:820
99:33 101:27 107:3 108:90 109:930 110:478
111:707 112:305 113:367 114:478 115:648 116:929
117:675 118:679 119:1009 120:240 121:674 122:1614
123:1049 124:1274 125:1251 128:215 129:150 130:166
131:565 132:101 133:20 134:213 135:49 136:212
137:143 138:294 139:117 140:470 141:203 142:338
143:381 144:485 145:51 146:432 147:212 148:615
149:273 150:160 151:230 152:295 153:179 154:2
155:364 156:173 157:314 158:130 159:373 160:314
161:198 162:275 163:145 164:482 165:336 166:503
167:420 168:737 169:149 170:751 171:69 172:2
173:1314 174:528 175:319 176:1 177:15 178:764
180:804 181:2 182:355 183:248 184:213 186:1016
187:804 188:895 189:1049 190:4383 192:5757 193:4787
194:3489 195:2937 196:1171 197:3 198:3496 199:3807
200:5553 201:1571 202:8061 203:8330 204:4021 205:2319
206:2538 207:3005 208:3916 209:3441 210:2591 211:1333
212:1940 213:1735 214:769 215:63 216:4829 217:1639
218:533 219:374 220:1193 221:436 222:309 223:98
End of report
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