Routing Table Report 08:00 +10GMT Wed 26 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 374843
Prefixes after maximum aggregation: 164184
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 185895
Total ASes present in the Internet Routing Table: 37461
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32312
Origin ASes announcing only one prefix: 15528
Transit ASes present in the Internet Routing Table: 5149
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2264
Unregistered ASNs in the Routing Table: 900
Number of 32-bit ASNs allocated by the RIRs: 1889
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3557
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2505121280
Equivalent to 149 /8s, 81 /16s and 30 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 157114
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89539
Total APNIC prefixes after maximum aggregation: 29642
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86958
Unique aggregates announced from the APNIC address blocks: 38038
APNIC Region origin ASes present in the Internet Routing Table: 4542
APNIC Prefixes per ASN: 19.15
APNIC Region origin ASes announcing only one prefix: 1282
APNIC Region transit ASes present in the Internet Routing Table: 689
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: 628983552
Equivalent to 37 /8s, 125 /16s and 135 /24s
Percentage of available APNIC address space announced: 79.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 144327
Total ARIN prefixes after maximum aggregation: 73958
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116541
Unique aggregates announced from the ARIN address blocks: 48249
ARIN Region origin ASes present in the Internet Routing Table: 14670
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1493
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: 804717312
Equivalent to 47 /8s, 247 /16s and 3 /24s
Percentage of available ARIN address space announced: 64.0
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: 93367
Total RIPE prefixes after maximum aggregation: 50687
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85974
Unique aggregates announced from the RIPE address blocks: 54219
RIPE Region origin ASes present in the Internet Routing Table: 16056
RIPE Prefixes per ASN: 5.35
RIPE Region origin ASes announcing only one prefix: 7988
RIPE Region transit ASes present in the Internet Routing Table: 2527
Average RIPE Region AS path length visible: 3.4
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: 490990336
Equivalent to 29 /8s, 67 /16s and 235 /24s
Percentage of available RIPE address space announced: 79.1
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: 34825
Total LACNIC prefixes after maximum aggregation: 7802
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 34392
Unique aggregates announced from the LACNIC address blocks: 18070
LACNIC Region origin ASes present in the Internet Routing Table: 1525
LACNIC Prefixes per ASN: 22.55
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 91613184
Equivalent to 5 /8s, 117 /16s and 232 /24s
Percentage of available LACNIC address space announced: 60.7
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: 8531
Total AfriNIC prefixes after maximum aggregation: 2017
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6618
Unique aggregates announced from the AfriNIC address blocks: 1984
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 3.3
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: 27924736
Equivalent to 1 /8s, 170 /16s and 25 /24s
Percentage of available AfriNIC address space announced: 41.6
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 1940 11088 658 Korea Telecom (KIX)
7545 1611 303 87 TPG Internet Pty Ltd
17974 1610 511 36 PT Telekomunikasi Indonesia
4755 1534 377 174 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1091 80 499 Sify Limited
7552 984 1062 11 Vietel Corporation
4808 973 2003 277 CNCGROUP IP network China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 954 166 150 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 3545 3814 223 BellSouth.net Inc.
7029 2331 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
1785 1844 680 122 PaeTec Communications, Inc.
4323 1623 1094 389 tw telecom holdings, inc.
20115 1594 1546 620 Charter Communications
22773 1461 2907 100 Cox Communications Inc.
30036 1396 253 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1324 7063 873 AT&T Services, 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
3352 2193 2317 51 Internet Access Network of TD
8402 1508 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 589 108 179 BILISIM TELEKOM
20940 549 182 423 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 504 8169 384 Deutsche Telekom AG
3292 483 2080 410 TDC Data Networks
12479 481 595 8 France Telecom Espana SA
8866 458 133 26 Bulgarian Telecommunication C
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 1694 313 155 Types of queries are: POCs, o
28573 1454 1032 69 Types of queries are: POCs, o
8151 1288 2894 347 Uninet S.A. de C.V.
7303 1229 747 177 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 577 72 85 Telconet S.A
6503 558 450 70 Axtel, S.A.B. de C.V.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 541 233 95 Types of queries are: POCs, o
11172 522 101 96 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 800 146 33 LINKdotNET AS number
8452 633 446 12 TEDATA
15475 454 74 8 Nile Online
36992 298 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 218 17 13 Ci Telecom Autonomous system
33776 199 12 16 Starcomms Nigeria Limited
12258 197 28 58 Vodacom Internet Company
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 3545 3814 223 BellSouth.net Inc.
7029 2331 1042 210 Windstream Communications Inc
3352 2193 2317 51 Internet Access Network of TD
18566 2097 382 176 Covad Communications Co.
4766 1940 11088 658 Korea Telecom (KIX)
1785 1844 680 122 PaeTec Communications, Inc.
10620 1694 313 155 Types of queries are: POCs, o
4323 1623 1094 389 tw telecom holdings, inc.
7545 1611 303 87 TPG Internet Pty Ltd
17974 1610 511 36 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3352 2193 2142 Internet Access Network of TD
7029 2331 2121 Windstream Communications Inc
18566 2097 1921 Covad Communications Co.
1785 1844 1722 PaeTec Communications, Inc.
17974 1610 1574 PT Telekomunikasi Indonesia
10620 1694 1539 Types of queries are: POCs, o
7545 1611 1524 TPG Internet Pty Ltd
8402 1508 1495 Corbina telecom
28573 1454 1385 Types of queries are: POCs, o
22773 1461 1361 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.
25639 UNALLOCATED 12.41.169.0/24 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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /10:27 /11:81 /12:237
/13:464 /14:806 /15:1422 /16:11979 /17:6055 /18:10011
/19:20056 /20:27458 /21:27582 /22:37035 /23:35583 /24:195484
/25:11 /26:20 /27:22 /28:155 /29:127 /30:63
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3545 BellSouth.net Inc.
18566 2047 2097 Covad Communications Co.
7029 1987 2331 Windstream Communications Inc
3352 1742 2193 Internet Access Network of TD
10620 1589 1694 Types of queries are: POCs, o
8402 1484 1508 Corbina telecom
30036 1357 1396 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1057 1844 PaeTec Communications, Inc.
7011 1050 1168 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:484 4:15 5:1 6:3 8:357
12:1954 13:1 14:533 15:11 16:3 17:7
20:9 23:58 24:1666 27:959 31:612 32:60
33:4 34:2 36:4 38:750 40:110 41:2669
42:54 44:3 46:1006 47:3 49:288 50:441
52:13 55:6 56:2 57:38 58:842 59:491
60:360 61:996 62:1088 63:1952 64:4012 65:2302
66:4272 67:1990 68:1146 69:3187 70:889 71:379
72:1801 74:2555 75:391 76:319 77:885 78:872
79:458 80:1590 81:956 82:500 83:578 84:619
85:1125 86:410 87:894 88:420 89:1604 90:237
91:4222 92:531 93:1539 94:1309 95:1068 96:427
97:284 98:921 99:37 101:100 103:391 106:70
107:75 108:72 109:1046 110:643 111:788 112:323
113:465 114:602 115:675 116:863 117:693 118:859
119:1214 120:337 121:680 122:1552 123:1015 124:1296
125:1303 128:209 129:177 130:159 131:588 132:138
133:21 134:210 135:54 136:211 137:137 138:284
139:120 140:465 141:299 142:371 143:420 144:488
145:62 146:469 147:223 148:620 149:266 150:159
151:191 152:445 153:178 154:6 155:388 156:205
157:331 158:153 159:412 160:325 161:204 162:332
163:162 164:506 165:368 166:535 167:438 168:737
169:144 170:872 171:85 172:4 173:1707 174:685
175:411 176:289 177:353 178:1063 180:1091 181:36
182:637 183:208 184:379 185:1 186:1300 187:705
188:937 189:873 190:5108 192:5882 193:5040 194:3560
195:3095 196:1238 197:162 198:3573 199:4137 200:5449
201:1683 202:8278 203:8391 204:4226 205:2338 206:2581
207:2761 208:4010 209:3545 210:2617 211:1448 212:2103
213:1807 214:788 215:94 216:4896 217:1614 218:554
219:338 220:1203 221:501 222:297 223:267
End of report