Routing Table Report 08:00 +10GMT Sat 18 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355105
Prefixes after maximum aggregation: 161419
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178726
Total ASes present in the Internet Routing Table: 36582
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31575
Origin ASes announcing only one prefix: 15202
Transit ASes present in the Internet Routing Table: 5007
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: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2204
Unregistered ASNs in the Routing Table: 529
Number of 32-bit ASNs allocated by the RIRs: 1463
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2670
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 140
Number of addresses announced to Internet: 2488003328
Equivalent to 148 /8s, 75 /16s and 235 /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: 146447
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85380
Total APNIC prefixes after maximum aggregation: 28768
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82742
Unique aggregates announced from the APNIC address blocks: 36897
APNIC Region origin ASes present in the Internet Routing Table: 4432
APNIC Prefixes per ASN: 18.67
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 672
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: 618676480
Equivalent to 36 /8s, 224 /16s and 65 /24s
Percentage of available APNIC address space announced: 78.5
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: 139649
Total ARIN prefixes after maximum aggregation: 71430
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111899
Unique aggregates announced from the ARIN address blocks: 46209
ARIN Region origin ASes present in the Internet Routing Table: 14360
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5501
ARIN Region transit ASes present in the Internet Routing Table: 1454
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 801901568
Equivalent to 47 /8s, 204 /16s and 12 /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: 86114
Total RIPE prefixes after maximum aggregation: 48803
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79553
Unique aggregates announced from the RIPE address blocks: 52442
RIPE Region origin ASes present in the Internet Routing Table: 15718
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7855
RIPE Region transit ASes present in the Internet Routing Table: 2457
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: 477408512
Equivalent to 28 /8s, 116 /16s and 173 /24s
Percentage of available RIPE address space announced: 76.9
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: 32374
Total LACNIC prefixes after maximum aggregation: 7428
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31783
Unique aggregates announced from the LACNIC address blocks: 16870
LACNIC Region origin ASes present in the Internet Routing Table: 1455
LACNIC Prefixes per ASN: 21.84
LACNIC Region origin ASes announcing only one prefix: 441
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 region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84838400
Equivalent to 5 /8s, 14 /16s and 136 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8195
Total AfriNIC prefixes after maximum aggregation: 2005
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6350
Unique aggregates announced from the AfriNIC address blocks: 1955
AfriNIC Region origin ASes present in the Internet Routing Table: 457
AfriNIC Prefixes per ASN: 13.89
AfriNIC Region origin ASes announcing only one prefix: 142
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: 24236032
Equivalent to 1 /8s, 113 /16s and 208 /24s
Percentage of available AfriNIC address space announced: 36.1
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 1899 9492 620 Korea Telecom (KIX)
17974 1583 458 44 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1475 374 165 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1042 879 56 National Internet Backbone
4808 952 2009 279 CNCGROUP IP network China169
17488 948 190 101 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 3625 3819 250 BellSouth.net Inc.
18566 1912 365 236 Covad Communications Co.
1785 1799 681 122 PaeTec Communications, Inc.
4323 1660 1097 398 tw telecom holdings, inc.
6478 1634 296 275 AT&T Services, Inc.
20115 1524 1527 637 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7029 1411 1038 206 Alltel Information Services,
7018 1375 7088 903 AT&T Services, Inc.
22773 1338 2897 85 Cox Communications 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 540 326 31 Goldenlines main autonomous s
34984 524 107 182 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 466 2078 401 TDC Data Networks
20940 463 135 355 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 434 593 7 France Telecom Espana SA
3320 420 8151 367 Deutsche Telekom AG
8551 405 355 38 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 1523 278 155 Types of queries are: POCs, o
8151 1249 2710 357 Uninet S.A. de C.V.
28573 1242 993 78 Types of queries are: POCs, o
7303 967 506 158 Telecom Argentina S.A.
6503 733 354 74 Axtel, S.A.B. de C.V.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 Types of queries are: POCs, o
3816 532 229 98 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 494 100 85 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 792 147 35 LINKdotNET AS number
8452 761 445 11 TEDATA
15475 526 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 87 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 3625 3819 250 BellSouth.net Inc.
23456 2670 661 1446 32-bit ASN transition
18566 1912 365 236 Covad Communications Co.
4766 1899 9492 620 Korea Telecom (KIX)
1785 1799 681 122 PaeTec Communications, Inc.
4323 1660 1097 398 tw telecom holdings, inc.
6478 1634 296 275 AT&T Services, Inc.
17974 1583 458 44 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
20115 1524 1527 637 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 1799 1677 PaeTec Communications, Inc.
18566 1912 1676 Covad Communications Co.
17974 1583 1539 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1523 1368 Types of queries are: POCs, o
6478 1634 1359 AT&T Services, Inc.
4755 1475 1310 TATA Communications formerly
4766 1899 1279 Korea Telecom (KIX)
4323 1660 1262 tw telecom holdings, inc.
22773 1338 1253 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.
31.132.8.0/21 15478 White Market Media SRL
31.132.32.0/20 15478 White Market Media SRL
41.190.32.0/23 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 /11:81 /12:231
/13:462 /14:800 /15:1394 /16:11919 /17:5818 /18:9728
/19:19454 /20:26042 /21:25900 /22:34152 /23:32939 /24:185619
/25:13 /26:18 /27:25 /28:160 /29:102 /30:56
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3625 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1597 1634 AT&T Services, Inc.
10620 1413 1523 Types of queries are: POCs, o
23456 1328 2670 32-bit ASN transition
7029 1090 1411 Alltel Information Services,
11492 1087 1133 CABLE ONE, INC.
7011 1059 1159 Frontier Communications of Am
1785 1050 1799 PaeTec Communications, Inc.
22773 855 1338 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:285 2:42 4:16 5:1 6:3 8:335
12:1971 13:1 14:447 15:15 16:3 17:8
20:10 23:11 24:1648 27:789 31:444 32:59
33:4 34:2 37:1 38:730 40:103 41:2483
42:2 44:3 46:975 47:3 49:188 50:409
52:13 54:2 55:4 56:2 57:30 58:801
59:468 60:385 61:1018 62:1048 63:1926 64:3919
65:2268 66:3846 67:1890 68:1082 69:3037 70:721
71:376 72:1886 74:2371 75:318 76:338 77:880
78:706 79:469 80:1111 81:846 82:497 83:464
84:668 85:1085 86:579 87:758 88:334 89:1526
90:208 91:3857 92:530 93:1049 94:1299 95:838
96:440 97:249 98:879 99:36 101:61 103:75
106:7 107:14 108:71 109:1002 110:605 111:704
112:293 113:393 114:540 115:660 116:944 117:674
118:788 119:1135 120:310 121:644 122:1623 123:936
124:1259 125:1219 128:209 129:168 130:159 131:575
132:103 133:21 134:206 135:48 136:214 137:135
138:300 139:111 140:459 141:238 142:387 143:408
144:460 145:54 146:444 147:211 148:591 149:246
150:164 151:190 152:330 153:180 154:3 155:398
156:191 157:323 158:138 159:382 160:315 161:200
162:310 163:152 164:500 165:350 166:532 167:424
168:735 169:154 170:834 171:77 172:1 173:1618
174:602 175:359 176:135 177:160 178:997 180:883
181:19 182:463 183:220 184:301 185:1 186:1240
187:723 188:857 189:907 190:4881 192:5805 193:4956
194:3486 195:3031 196:1222 197:23 198:3535 199:3911
200:5459 201:1487 202:8027 203:8315 204:4115 205:2324
206:2597 207:2743 208:3918 209:3436 210:2646 211:1417
212:2020 213:1727 214:770 215:69 216:4907 217:1642
218:535 219:361 220:1195 221:475 222:308 223:156
End of report
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