Routing Table Report 08:00 +10GMT Mon 13 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 354638
Prefixes after maximum aggregation: 160804
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178476
Total ASes present in the Internet Routing Table: 36533
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31549
Origin ASes announcing only one prefix: 15183
Transit ASes present in the Internet Routing Table: 4984
Transit-only ASes present in the Internet Routing Table: 114
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: 2167
Unregistered ASNs in the Routing Table: 508
Number of 32-bit ASNs allocated by the RIRs: 1450
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2650
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 157
Number of addresses announced to Internet: 2487462400
Equivalent to 148 /8s, 67 /16s and 170 /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: 91.1
Total number of prefixes smaller than registry allocations: 146483
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85168
Total APNIC prefixes after maximum aggregation: 28768
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82475
Unique aggregates announced from the APNIC address blocks: 36788
APNIC Region origin ASes present in the Internet Routing Table: 4428
APNIC Prefixes per ASN: 18.63
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 670
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: 618586880
Equivalent to 36 /8s, 222 /16s and 227 /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: 139550
Total ARIN prefixes after maximum aggregation: 71031
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111818
Unique aggregates announced from the ARIN address blocks: 46090
ARIN Region origin ASes present in the Internet Routing Table: 14345
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5488
ARIN Region transit ASes present in the Internet Routing Table: 1443
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: 801964544
Equivalent to 47 /8s, 205 /16s and 2 /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: 85903
Total RIPE prefixes after maximum aggregation: 48675
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79354
Unique aggregates announced from the RIPE address blocks: 52406
RIPE Region origin ASes present in the Internet Routing Table: 15692
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7849
RIPE Region transit ASes present in the Internet Routing Table: 2451
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: 477274368
Equivalent to 28 /8s, 114 /16s and 161 /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: 32439
Total LACNIC prefixes after maximum aggregation: 7400
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31884
Unique aggregates announced from the LACNIC address blocks: 16954
LACNIC Region origin ASes present in the Internet Routing Table: 1448
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 437
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84806912
Equivalent to 5 /8s, 14 /16s and 13 /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: 8206
Total AfriNIC prefixes after maximum aggregation: 1963
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6325
Unique aggregates announced from the AfriNIC address blocks: 1861
AfriNIC Region origin ASes present in the Internet Routing Table: 457
AfriNIC Prefixes per ASN: 13.84
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 24140032
Equivalent to 1 /8s, 112 /16s and 89 /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 1545 439 35 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1468 374 163 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1041 878 60 National Internet Backbone
4808 960 2017 278 CNCGROUP IP network China169
17488 944 191 102 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 3628 3822 253 BellSouth.net Inc.
4323 1960 1097 400 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
1785 1796 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
20115 1539 1541 633 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7018 1376 7085 903 AT&T Services, Inc.
22773 1339 2897 87 Cox Communications Inc.
2386 1270 536 910 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 540 326 31 Goldenlines main autonomous s
34984 521 106 180 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 437 593 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 1304 992 80 Types of queries are: POCs, o
8151 1247 2708 359 Uninet S.A. de C.V.
7303 967 506 158 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 532 231 93 Types of queries are: POCs, o
13489 517 262 122 EPM Telecomunicaciones S.A. E
7738 516 986 31 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
24863 792 147 35 LINKdotNET AS number
8452 783 445 11 TEDATA
15475 529 74 8 Nile Online
36992 307 415 16 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 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 3628 3822 253 BellSouth.net Inc.
23456 2650 650 1437 32-bit ASN transition
4323 1960 1097 400 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
4766 1904 9492 620 Korea Telecom (KIX)
1785 1796 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
17974 1545 439 35 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 1728 1678 AT&T Services, Inc.
18566 1912 1676 Covad Communications Co.
1785 1796 1674 PaeTec Communications, Inc.
4323 1960 1560 tw telecom holdings, inc.
17974 1545 1510 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1513 1356 Types of queries are: POCs, o
4755 1468 1305 TATA Communications formerly
4766 1904 1284 Korea Telecom (KIX)
22773 1339 1252 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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 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 /16:11918 /17:5826 /18:9720
/19:19441 /20:25891 /21:25961 /22:34104 /23:32949 /24:185299
/25:13 /26:17 /27:25 /28:160 /29:105 /30:55
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2231 3628 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1682 1728 AT&T Services, Inc.
10620 1403 1513 Types of queries are: POCs, o
23456 1321 2650 32-bit ASN transition
11492 1087 1133 CABLE ONE, INC.
7011 1061 1161 Frontier Communications of Am
1785 1049 1796 PaeTec Communications, Inc.
7029 939 1257 Alltel Information Services,
4323 872 1960 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:285 2:45 4:16 5:1 6:3 8:336
12:1972 13:1 14:452 15:15 16:3 17:8
20:10 23:11 24:1607 27:777 31:431 32:55
33:4 34:2 37:1 38:728 40:103 41:2505
42:2 44:3 46:956 47:3 49:188 50:409
52:13 54:2 55:3 56:2 57:31 58:797
59:470 60:385 61:1014 62:1053 63:1927 64:3913
65:2246 66:4123 67:1885 68:1079 69:3000 70:701
71:373 72:1848 74:2350 75:308 76:340 77:880
78:704 79:468 80:1104 81:836 82:497 83:464
84:666 85:1080 86:580 87:758 88:330 89:1527
90:204 91:3833 92:526 93:1037 94:1311 95:832
96:440 97:251 98:872 99:36 101:63 103:59
106:6 107:11 108:82 109:967 110:600 111:705
112:291 113:392 114:536 115:680 116:938 117:672
118:785 119:1128 120:308 121:646 122:1623 123:938
124:1260 125:1212 128:209 129:169 130:158 131:573
132:102 133:19 134:206 135:48 136:212 137:140
138:301 139:110 140:459 141:238 142:388 143:410
144:487 145:54 146:441 147:212 148:585 149:245
150:164 151:187 152:327 153:180 154:2 155:399
156:192 157:324 158:137 159:373 160:317 161:199
162:306 163:154 164:500 165:351 166:530 167:423
168:734 169:153 170:832 171:77 172:1 173:1605
174:584 175:357 176:134 177:151 178:997 180:880
181:18 182:453 183:218 184:298 185:1 186:1209
187:770 188:846 189:917 190:4874 192:5791 193:4903
194:3482 195:2988 196:1233 197:20 198:3529 199:3888
200:5452 201:1474 202:8091 203:8251 204:4114 205:2318
206:2598 207:2753 208:3935 209:3445 210:2647 211:1391
212:2015 213:1723 214:734 215:69 216:4897 217:1656
218:533 219:360 220:1199 221:474 222:309 223:154
End of report
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