Routing Table Report 08:00 +10GMT Sat 12 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 375802
Prefixes after maximum aggregation: 164644
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187669
Total ASes present in the Internet Routing Table: 37523
Prefixes per ASN: 10.02
Origin-only ASes present in the Internet Routing Table: 32372
Origin ASes announcing only one prefix: 15496
Transit ASes present in the Internet Routing Table: 5151
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2407
Unregistered ASNs in the Routing Table: 948
Number of 32-bit ASNs allocated by the RIRs: 1940
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3719
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2507259648
Equivalent to 149 /8s, 113 /16s and 191 /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: 91.6
Total number of prefixes smaller than registry allocations: 157418
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89944
Total APNIC prefixes after maximum aggregation: 29834
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87345
Unique aggregates announced from the APNIC address blocks: 38406
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1287
APNIC Region transit ASes present in the Internet Routing Table: 690
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: 629625600
Equivalent to 37 /8s, 135 /16s and 83 /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: 144936
Total ARIN prefixes after maximum aggregation: 73866
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117275
Unique aggregates announced from the ARIN address blocks: 48481
ARIN Region origin ASes present in the Internet Routing Table: 14668
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5622
ARIN Region transit ASes present in the Internet Routing Table: 1495
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: 804254976
Equivalent to 47 /8s, 239 /16s and 245 /24s
Percentage of available ARIN address space announced: 63.9
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: 92289
Total RIPE prefixes after maximum aggregation: 50997
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84741
Unique aggregates announced from the RIPE address blocks: 54675
RIPE Region origin ASes present in the Internet Routing Table: 16102
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7983
RIPE Region transit ASes present in the Internet Routing Table: 2514
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 491914240
Equivalent to 29 /8s, 82 /16s and 4 /24s
Percentage of available RIPE address space announced: 79.2
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: 35606
Total LACNIC prefixes after maximum aggregation: 7826
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35235
Unique aggregates announced from the LACNIC address blocks: 18624
LACNIC Region origin ASes present in the Internet Routing Table: 1533
LACNIC Prefixes per ASN: 22.98
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 270
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: 92889600
Equivalent to 5 /8s, 137 /16s and 98 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8606
Total AfriNIC prefixes after maximum aggregation: 2042
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6701
Unique aggregates announced from the AfriNIC address blocks: 2013
AfriNIC Region origin ASes present in the Internet Routing Table: 493
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 154
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: 27686144
Equivalent to 1 /8s, 166 /16s and 117 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1948 11105 662 Korea Telecom (KIX)
7545 1622 303 88 TPG Internet Pty Ltd
17974 1599 511 36 PT Telekomunikasi Indonesia
4755 1531 377 172 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1116 83 512 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 976 2001 279 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 954 119 149 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 3544 3814 220 BellSouth.net Inc.
7029 2952 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1850 680 122 PaeTec Communications, Inc.
4323 1621 1093 388 tw telecom holdings, inc.
20115 1594 1545 624 Charter Communications
22773 1494 2909 102 Cox Communications Inc.
30036 1414 255 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1323 7063 870 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
8402 1363 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
20940 552 182 434 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 504 8168 389 Deutsche Telekom AG
3292 480 2074 408 TDC Data Networks
12479 479 596 9 France Telecom Espana SA
8866 463 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
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 1706 316 157 Types of queries are: POCs, o
28573 1478 1043 85 Types of queries are: POCs, o
8151 1307 2918 342 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 580 72 85 Telconet S.A
6503 555 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 542 234 96 Types of queries are: POCs, o
11172 524 101 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 790 146 33 LINKdotNET AS number
8452 704 446 12 TEDATA
15475 454 74 8 Nile Online
36992 286 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
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 3544 3814 220 BellSouth.net Inc.
7029 2952 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1948 11105 662 Korea Telecom (KIX)
1785 1850 680 122 PaeTec Communications, Inc.
10620 1706 316 157 Types of queries are: POCs, o
7545 1622 303 88 TPG Internet Pty Ltd
4323 1621 1093 388 tw telecom holdings, inc.
17974 1599 511 36 PT Telekomunikasi Indonesia
20115 1594 1545 624 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
7029 2952 2740 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1850 1728 PaeTec Communications, Inc.
17974 1599 1563 PT Telekomunikasi Indonesia
10620 1706 1549 Types of queries are: POCs, o
7545 1622 1534 TPG Internet Pty Ltd
28573 1478 1393 Types of queries are: POCs, o
22773 1494 1392 Cox Communications Inc.
4755 1531 1359 TATA Communications formerly
8402 1363 1349 Corbina telecom
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
128.0.0.0/16 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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 37345 MEDALLION Communications
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
/13:465 /14:806 /15:1418 /16:11961 /17:6048 /18:10033
/19:20074 /20:27609 /21:27648 /22:37241 /23:34956 /24:196627
/25:12 /26:21 /27:22 /28:156 /29:131 /30:63
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2566 2952 Windstream Communications Inc
6389 2184 3544 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1601 1706 Types of queries are: POCs, o
30036 1374 1414 Mediacom Communications Corp
8402 1339 1363 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1057 1850 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 957 1494 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:407 2:447 4:15 5:1 6:3 8:356
12:1963 13:1 14:539 15:11 16:3 17:7
20:9 23:63 24:1675 27:1026 31:673 32:60
33:2 34:2 36:4 38:752 40:110 41:2721
42:60 44:3 46:1050 47:3 49:295 50:448
52:13 55:9 56:2 57:42 58:871 59:491
60:358 61:1029 62:1098 63:1965 64:4037 65:2302
66:4311 67:2020 68:1173 69:3141 70:903 71:388
72:1820 74:2632 75:430 76:319 77:880 78:865
79:477 80:1132 81:838 82:518 83:520 84:620
85:1153 86:406 87:933 88:356 89:1577 90:235
91:4258 92:536 93:1527 94:1303 95:1059 96:422
97:286 98:942 99:37 101:113 103:455 106:7
107:91 108:77 109:1186 110:645 111:804 112:353
113:462 114:611 115:685 116:857 117:690 118:875
119:1221 120:343 121:663 122:1564 123:1013 124:1295
125:1302 128:212 129:176 130:158 131:608 132:143
133:21 134:213 135:54 136:211 137:139 138:287
139:119 140:467 141:252 142:371 143:399 144:491
145:64 146:462 147:218 148:615 149:269 150:157
151:194 152:445 153:172 154:6 155:387 156:205
157:329 158:152 159:420 160:330 161:204 162:371
163:163 164:503 165:367 166:543 167:443 168:779
169:144 170:881 171:87 172:4 173:1741 174:703
175:405 176:288 177:367 178:1100 180:1140 181:38
182:640 183:228 184:393 185:1 186:1397 187:781
188:958 189:1163 190:5176 192:5879 193:5047 194:3549
195:3109 196:1252 197:171 198:3565 199:4166 200:5456
201:1702 202:8250 203:8425 204:4242 205:2355 206:2579
207:2746 208:4017 209:3558 210:2649 211:1450 212:2094
213:1807 214:778 215:96 216:4901 217:1602 218:557
219:338 220:1217 221:497 222:296 223:268
End of report
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