Routing Table Report 08:00 +10GMT Fri 10 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 354189
Prefixes after maximum aggregation: 160754
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178062
Total ASes present in the Internet Routing Table: 36513
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31530
Origin ASes announcing only one prefix: 15178
Transit ASes present in the Internet Routing Table: 4983
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2162
Unregistered ASNs in the Routing Table: 499
Number of 32-bit ASNs allocated by the RIRs: 1440
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2634
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 169
Number of addresses announced to Internet: 2486624768
Equivalent to 148 /8s, 54 /16s and 226 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 146091
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85098
Total APNIC prefixes after maximum aggregation: 28763
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82409
Unique aggregates announced from the APNIC address blocks: 36735
APNIC Region origin ASes present in the Internet Routing Table: 4421
APNIC Prefixes per ASN: 18.64
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 669
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: 618121984
Equivalent to 36 /8s, 215 /16s and 203 /24s
Percentage of available APNIC address space announced: 78.4
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: 139333
Total ARIN prefixes after maximum aggregation: 71048
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111596
Unique aggregates announced from the ARIN address blocks: 46052
ARIN Region origin ASes present in the Internet Routing Table: 14348
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5497
ARIN Region transit ASes present in the Internet Routing Table: 1445
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: 802074368
Equivalent to 47 /8s, 206 /16s and 175 /24s
Percentage of available ARIN address space announced: 63.7
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: 85813
Total RIPE prefixes after maximum aggregation: 48636
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79225
Unique aggregates announced from the RIPE address blocks: 52161
RIPE Region origin ASes present in the Internet Routing Table: 15673
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7839
RIPE Region transit ASes present in the Internet Routing Table: 2449
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 476713984
Equivalent to 28 /8s, 106 /16s and 20 /24s
Percentage of available RIPE address space announced: 76.8
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: 32360
Total LACNIC prefixes after maximum aggregation: 7396
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31836
Unique aggregates announced from the LACNIC address blocks: 16883
LACNIC Region origin ASes present in the Internet Routing Table: 1449
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84755456
Equivalent to 5 /8s, 13 /16s and 68 /24s
Percentage of available LACNIC address space announced: 56.1
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: 8226
Total AfriNIC prefixes after maximum aggregation: 1966
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6360
Unique aggregates announced from the AfriNIC address blocks: 1871
AfriNIC Region origin ASes present in the Internet Routing Table: 456
AfriNIC Prefixes per ASN: 13.95
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.5
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: 24135168
Equivalent to 1 /8s, 112 /16s and 70 /24s
Percentage of available AfriNIC address space announced: 36.0
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 1904 9492 620 Korea Telecom (KIX)
17974 1556 441 38 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1470 374 164 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1057 76 506 Sify Limited
9829 1039 877 62 National Internet Backbone
4808 960 2017 278 CNCGROUP IP network China169
17488 936 191 103 Hathway IP Over Cable Interne
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 3636 3822 256 BellSouth.net Inc.
4323 1964 1097 402 tw telecom holdings, inc.
18566 1875 355 269 Covad Communications Co.
1785 1794 681 122 PaeTec Communications, Inc.
6478 1720 318 44 AT&T Services, Inc.
20115 1539 1541 633 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7018 1377 7102 903 AT&T Services, Inc.
22773 1337 2897 87 Cox Communications Inc.
2386 1266 536 909 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 539 326 30 Goldenlines main autonomous s
34984 518 106 182 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 464 2078 399 TDC Data Networks
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 7 France Telecom Espana SA
3320 424 8152 369 Deutsche Telekom AG
8551 407 356 39 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 1513 278 157 Types of queries are: POCs, o
28573 1300 992 80 Types of queries are: POCs, o
8151 1247 2707 357 Uninet S.A. de C.V.
7303 937 504 142 Telecom Argentina S.A.
6503 731 354 74 Axtel, S.A.B. de C.V.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 530 231 93 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 516 262 124 EPM Telecomunicaciones S.A. E
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 795 445 11 TEDATA
24863 792 147 35 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 308 415 17 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS
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 3636 3822 256 BellSouth.net Inc.
23456 2634 647 1426 32-bit ASN transition
4323 1964 1097 402 tw telecom holdings, inc.
4766 1904 9492 620 Korea Telecom (KIX)
18566 1875 355 269 Covad Communications Co.
1785 1794 681 122 PaeTec Communications, Inc.
6478 1720 318 44 AT&T Services, Inc.
17974 1556 441 38 PT Telekomunikasi Indonesia
20115 1539 1541 633 Charter Communications
7545 1536 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1720 1676 AT&T Services, Inc.
1785 1794 1672 PaeTec Communications, Inc.
18566 1875 1606 Covad Communications Co.
4323 1964 1562 tw telecom holdings, inc.
17974 1556 1518 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1513 1356 Types of queries are: POCs, o
4755 1470 1306 TATA Communications formerly
4766 1904 1284 Korea Telecom (KIX)
22773 1337 1250 Cox Communications 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
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
27.0.128.0/17 7514 Media EXchange, Inc.
31.131.160.0/21 56897 >>UNKNOWN<<
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
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 /9:12 /10:28 /11:80 /12:230
/13:462 /14:799 /15:1394 /16:11904 /17:5822 /18:9711
/19:19440 /20:25858 /21:25960 /22:34057 /23:32903 /24:185001
/25:13 /26:17 /27:25 /28:161 /29:106 /30:55
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2238 3636 BellSouth.net Inc.
18566 1838 1875 Covad Communications Co.
6478 1674 1720 AT&T Services, Inc.
10620 1403 1513 Types of queries are: POCs, o
23456 1304 2634 32-bit ASN transition
11492 1101 1147 CABLE ONE, INC.
7011 1061 1161 Frontier Communications of Am
1785 1050 1794 PaeTec Communications, Inc.
7029 938 1256 Alltel Information Services,
4323 876 1964 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:279 2:47 4:16 5:1 6:3 8:337
12:1973 13:1 14:453 15:15 16:3 17:8
20:10 23:11 24:1608 27:772 31:427 32:55
33:4 34:2 37:1 38:734 40:103 41:2520
42:6 44:3 46:961 47:3 49:195 50:403
52:13 54:2 55:4 56:2 57:28 58:796
59:470 60:385 61:1016 62:1052 63:1929 64:3904
65:2254 66:4126 67:1869 68:1082 69:2968 70:703
71:373 72:1830 74:2348 75:308 76:337 77:882
78:704 79:466 80:1094 81:835 82:479 83:460
84:667 85:1079 86:578 87:759 88:332 89:1530
90:205 91:3822 92:523 93:1037 94:1292 95:817
96:438 97:251 98:869 99:36 101:57 103:56
106:1 107:11 108:83 109:967 110:599 111:703
112:294 113:395 114:537 115:678 116:940 117:669
118:787 119:1137 120:311 121:646 122:1621 123:937
124:1265 125:1212 128:209 129:169 130:158 131:574
132:102 133:19 134:205 135:48 136:212 137:141
138:300 139:109 140:457 141:238 142:388 143:413
144:487 145:54 146:442 147:212 148:587 149:246
150:166 151:187 152:328 153:180 154:2 155:399
156:195 157:323 158:138 159:373 160:317 161:201
162:307 163:154 164:500 165:350 166:528 167:424
168:724 169:153 170:798 171:77 172:1 173:1601
174:586 175:357 176:133 177:151 178:998 180:849
181:18 182:454 183:214 184:295 185:1 186:1197
187:769 188:845 189:890 190:4865 192:5797 193:4911
194:3492 195:2992 196:1230 197:19 198:3527 199:3886
200:5464 201:1460 202:8079 203:8255 204:4109 205:2309
206:2600 207:2770 208:3930 209:3435 210:2654 211:1392
212:2017 213:1727 214:734 215:68 216:4848 217:1634
218:533 219:360 220:1199 221:475 222:309 223:154
End of report
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