Routing Table Report 08:00 +10GMT Thu 07 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 347702
Prefixes after maximum aggregation: 158032
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174393
Total ASes present in the Internet Routing Table: 36087
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31199
Origin ASes announcing only one prefix: 15028
Transit ASes present in the Internet Routing Table: 4888
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1955
Unregistered ASNs in the Routing Table: 346
Number of 32-bit ASNs allocated by the RIRs: 1260
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2142
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 191
Number of addresses announced to Internet: 2423625472
Equivalent to 144 /8s, 117 /16s and 151 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.2
Total number of prefixes smaller than registry allocations: 142618
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83761
Total APNIC prefixes after maximum aggregation: 28503
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81554
Unique aggregates announced from the APNIC address blocks: 36640
APNIC Region origin ASes present in the Internet Routing Table: 4334
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 673
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 604344064
Equivalent to 36 /8s, 5 /16s and 143 /24s
Percentage of available APNIC address space announced: 76.6
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: 137570
Total ARIN prefixes after maximum aggregation: 70422
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110398
Unique aggregates announced from the ARIN address blocks: 45054
ARIN Region origin ASes present in the Internet Routing Table: 14230
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5453
ARIN Region transit ASes present in the Internet Routing Table: 1417
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: 797702656
Equivalent to 47 /8s, 139 /16s and 250 /24s
Percentage of available ARIN address space announced: 63.4
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: 83796
Total RIPE prefixes after maximum aggregation: 47557
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77005
Unique aggregates announced from the RIPE address blocks: 50623
RIPE Region origin ASes present in the Internet Routing Table: 15482
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7789
RIPE Region transit ASes present in the Internet Routing Table: 2385
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 465901056
Equivalent to 27 /8s, 197 /16s and 22 /24s
Percentage of available RIPE address space announced: 75.1
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: 32023
Total LACNIC prefixes after maximum aggregation: 7324
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31096
Unique aggregates announced from the LACNIC address blocks: 16289
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.84
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81784320
Equivalent to 4 /8s, 223 /16s and 238 /24s
Percentage of available LACNIC address space announced: 54.2
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: 7668
Total AfriNIC prefixes after maximum aggregation: 1823
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6034
Unique aggregates announced from the AfriNIC address blocks: 1858
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22706176
Equivalent to 1 /8s, 90 /16s and 120 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1875 9507 605 Korea Telecom (KIX)
7545 1544 301 84 TPG Internet Pty Ltd
17974 1449 472 34 PT Telekomunikasi Indonesia
4755 1440 638 168 TATA Communications formerly
24560 1137 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 971 841 55 National Internet Backbone
4808 948 2028 277 CNCGROUP IP network China169
17488 939 162 97 Hathway IP Over Cable Interne
18101 936 116 139 Reliance Infocom Ltd Internet
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 3668 3838 262 BellSouth.net Inc.
4323 2537 1106 395 tw telecom holdings, inc.
1785 1793 681 131 PaeTec Communications, Inc.
6478 1605 305 34 AT&T Services, Inc.
18566 1597 330 198 Covad Communications Co.
20115 1535 1551 641 Charter Communications
19262 1488 4940 298 Verizon Online LLC
7018 1366 6946 892 AT&T Services, Inc.
22773 1291 2865 84 Cox Communications Inc.
2386 1281 537 924 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 541 326 30 Goldenlines main autonomous s
6830 513 1780 318 UPC Broadband
34984 495 97 188 BILISIM TELEKOM
29049 469 34 35 AzerSat LLC.
20940 458 130 347 Akamai Technologies European
3292 454 2013 391 TDC Data Networks
8866 446 134 26 Bulgarian Telecommunication C
3320 412 7604 358 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 401 577 6 France Telecom Espana SA
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 1408 262 153 Types of queries are: POCs, o
28573 1253 972 86 Types of queries are: POCs, o
8151 1230 2661 366 Uninet S.A. de C.V.
6503 1111 354 73 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 645 52 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 515 225 97 Types of queries are: POCs, o
11172 485 99 81 Alestra, S. de R.L. de C.V.
7738 479 922 30 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
8452 851 445 11 TEDATA
24863 772 147 36 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 266 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 147 441 86 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 3668 3838 262 BellSouth.net Inc.
4323 2537 1106 395 tw telecom holdings, inc.
23456 2142 609 1152 32-bit ASN transition
4766 1875 9507 605 Korea Telecom (KIX)
1785 1793 681 131 PaeTec Communications, Inc.
6478 1605 305 34 AT&T Services, Inc.
18566 1597 330 198 Covad Communications Co.
7545 1544 301 84 TPG Internet Pty Ltd
20115 1535 1551 641 Charter Communications
19262 1488 4940 298 Verizon Online LLC
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 2537 2142 tw telecom holdings, inc.
1785 1793 1662 PaeTec Communications, Inc.
6478 1605 1571 AT&T Services, Inc.
7545 1544 1460 TPG Internet Pty Ltd
17974 1449 1415 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
4755 1440 1272 TATA Communications formerly
4766 1875 1270 Korea Telecom (KIX)
10620 1408 1255 Types of queries are: POCs, o
11492 1265 1250 CABLE ONE, 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
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.
21861 UNALLOCATED 12.37.59.0/24 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
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
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
31.0.0.0/15 8374 Polkomtel S.A.
31.2.0.0/17 8374 Polkomtel S.A.
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 /9:12 /10:26 /11:75 /12:219
/13:448 /14:768 /15:1377 /16:11551 /17:5695 /18:9385
/19:19186 /20:24976 /21:25292 /22:33590 /23:31976 /24:182623
/25:11 /26:17 /27:24 /28:160 /29:97 /30:52
/31:0 /32:122
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2262 3668 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1559 1605 AT&T Services, Inc.
4323 1358 2537 tw telecom holdings, inc.
10620 1298 1408 Types of queries are: POCs, o
11492 1214 1265 CABLE ONE, INC.
23456 1114 2142 32-bit ASN transition
7011 1068 1168 Frontier Communications of Am
1785 1057 1793 PaeTec Communications, Inc.
6503 895 1111 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)
----------------------------------------------
1:292 2:54 4:14 5:1 8:350 12:2005
13:1 14:417 15:15 16:3 17:8 20:9
23:5 24:1582 27:708 31:213 32:55 33:3
34:2 37:1 38:748 39:1 40:101 41:2394
42:1 44:3 46:780 47:4 49:172 50:213
52:13 55:4 56:2 57:27 58:802 59:477
60:385 61:1057 62:1003 63:1913 64:3851 65:2331
66:4293 67:1810 68:1077 69:2936 70:701 71:343
72:1897 73:1 74:2327 75:285 76:337 77:852
78:680 79:465 80:1087 81:823 82:513 83:466
84:648 85:1042 86:519 87:771 88:338 89:1585
90:175 91:3662 92:495 93:1055 94:1262 95:774
96:456 97:252 98:822 99:35 101:53 106:2
107:4 108:78 109:941 110:530 111:668 112:318
113:384 114:494 115:698 116:916 117:669 118:755
119:1131 120:286 121:689 122:1614 123:1040 124:1247
125:1251 128:212 129:168 130:166 131:562 132:101
133:20 134:209 135:49 136:210 137:139 138:301
139:103 140:464 141:173 142:361 143:387 144:477
145:52 146:439 147:202 148:619 149:262 150:161
151:187 152:296 153:180 154:2 155:390 156:184
157:325 158:132 159:374 160:316 161:232 162:275
163:155 164:489 165:348 166:504 167:416 168:720
169:153 170:774 171:75 172:2 173:1258 174:533
175:339 177:78 178:802 180:802 181:5 182:405
183:199 184:241 185:1 186:1117 187:914 188:937
189:1041 190:4794 192:5727 193:4806 194:3463 195:2948
196:1210 197:17 198:3525 199:3859 200:5540 201:1481
202:8148 203:8346 204:4053 205:2297 206:2516 207:2931
208:3909 209:3475 210:2650 211:1353 212:1988 213:1713
214:734 215:66 216:4840 217:1641 218:543 219:381
220:1189 221:462 222:306 223:102
End of report
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