Routing Table Report 08:00 +10GMT Thu 17 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 376074
Prefixes after maximum aggregation: 164918
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187611
Total ASes present in the Internet Routing Table: 37552
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32386
Origin ASes announcing only one prefix: 15487
Transit ASes present in the Internet Routing Table: 5166
Transit-only ASes present in the Internet Routing Table: 132
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: 2477
Unregistered ASNs in the Routing Table: 968
Number of 32-bit ASNs allocated by the RIRs: 1958
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3781
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2507841280
Equivalent to 149 /8s, 122 /16s and 159 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
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: 157547
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90065
Total APNIC prefixes after maximum aggregation: 29832
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87437
Unique aggregates announced from the APNIC address blocks: 38363
APNIC Region origin ASes present in the Internet Routing Table: 4561
APNIC Prefixes per ASN: 19.17
APNIC Region origin ASes announcing only one prefix: 1283
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 3.9
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: 629757440
Equivalent to 37 /8s, 137 /16s and 86 /24s
Percentage of available APNIC address space announced: 79.9
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: 144637
Total ARIN prefixes after maximum aggregation: 73998
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117081
Unique aggregates announced from the ARIN address blocks: 48550
ARIN Region origin ASes present in the Internet Routing Table: 14671
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5621
ARIN Region transit ASes present in the Internet Routing Table: 1498
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: 803116032
Equivalent to 47 /8s, 222 /16s and 148 /24s
Percentage of available ARIN address space announced: 63.8
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: 92632
Total RIPE prefixes after maximum aggregation: 51122
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84869
Unique aggregates announced from the RIPE address blocks: 54447
RIPE Region origin ASes present in the Internet Routing Table: 16118
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7988
RIPE Region transit ASes present in the Internet Routing Table: 2531
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 492191744
Equivalent to 29 /8s, 86 /16s and 64 /24s
Percentage of available RIPE address space announced: 79.3
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: 35712
Total LACNIC prefixes after maximum aggregation: 7844
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 35323
Unique aggregates announced from the LACNIC address blocks: 18629
LACNIC Region origin ASes present in the Internet Routing Table: 1532
LACNIC Prefixes per ASN: 23.06
LACNIC Region origin ASes announcing only one prefix: 442
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: 93084160
Equivalent to 5 /8s, 140 /16s and 90 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8567
Total AfriNIC prefixes after maximum aggregation: 2049
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6654
Unique aggregates announced from the AfriNIC address blocks: 2032
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.44
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 107
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: 27744000
Equivalent to 1 /8s, 167 /16s and 87 /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 1954 11106 667 Korea Telecom (KIX)
7545 1623 303 86 TPG Internet Pty Ltd
17974 1594 511 36 PT Telekomunikasi Indonesia
4755 1516 378 170 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1094 80 494 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 985 2001 281 CNCGROUP IP network China169
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 148 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 3527 3814 225 BellSouth.net Inc.
7029 2951 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1851 680 122 PaeTec Communications, Inc.
4323 1613 1093 388 tw telecom holdings, inc.
20115 1595 1546 624 Charter Communications
22773 1497 2909 103 Cox Communications Inc.
30036 1422 256 667 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1319 7062 868 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 1377 416 14 Corbina telecom
6830 645 1927 411 UPC Broadband
34984 599 112 187 BILISIM TELEKOM
20940 554 182 436 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 512 8168 389 Deutsche Telekom AG
3292 482 2106 410 TDC Data Networks
12479 480 596 9 France Telecom Espana SA
8866 462 133 26 Bulgarian Telecommunication C
8551 417 367 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 1706 316 157 Types of queries are: POCs, o
28573 1482 1043 79 Types of queries are: POCs, o
8151 1309 2934 343 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 588 72 86 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 546 434 69 Axtel, S.A.B. de C.V.
3816 542 234 96 Types of queries are: POCs, o
11172 528 101 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 772 146 33 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 456 74 8 Nile Online
36992 282 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 203 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 3527 3814 225 BellSouth.net Inc.
7029 2951 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1954 11106 667 Korea Telecom (KIX)
1785 1851 680 122 PaeTec Communications, Inc.
10620 1706 316 157 Types of queries are: POCs, o
7545 1623 303 86 TPG Internet Pty Ltd
4323 1613 1093 388 tw telecom holdings, inc.
20115 1595 1546 624 Charter Communications
17974 1594 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
7029 2951 2739 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1851 1729 PaeTec Communications, Inc.
17974 1594 1558 PT Telekomunikasi Indonesia
10620 1706 1549 Types of queries are: POCs, o
7545 1623 1537 TPG Internet Pty Ltd
28573 1482 1403 Types of queries are: POCs, o
22773 1497 1394 Cox Communications Inc.
8402 1377 1363 Corbina telecom
4755 1516 1346 TATA Communications formerly
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 /14:805 /15:1416 /16:11966 /17:6059 /18:10072
/19:20088 /20:27623 /21:27753 /22:37550 /23:35087 /24:196293
/25:12 /26:21 /27:21 /28:152 /29:128 /30:59
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2565 2951 Windstream Communications Inc
6389 2176 3527 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1601 1706 Types of queries are: POCs, o
30036 1382 1422 Mediacom Communications Corp
8402 1353 1377 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1058 1851 PaeTec Communications, Inc.
7011 1050 1167 Frontier Communications of Am
22773 957 1497 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:456 4:15 5:1 6:3 8:354
12:1962 13:1 14:542 15:11 16:3 17:7
20:9 23:63 24:1681 27:1025 31:697 32:60
33:2 34:2 36:4 38:754 40:109 41:2670
42:60 44:3 46:1044 47:3 49:291 50:451
52:13 55:6 56:2 57:44 58:870 59:488
60:351 61:1037 62:1095 63:1960 64:4048 65:2296
66:4317 67:2015 68:1167 69:3144 70:903 71:389
72:1820 74:2631 75:429 76:321 77:891 78:867
79:488 80:1137 81:835 82:518 83:520 84:620
85:1154 86:409 87:906 88:356 89:1587 90:236
91:4269 92:537 93:1425 94:1309 95:1058 96:423
97:285 98:822 99:37 101:112 103:471 106:1
107:93 108:81 109:1171 110:650 111:796 112:349
113:457 114:579 115:682 116:857 117:692 118:877
119:1226 120:347 121:654 122:1573 123:1015 124:1296
125:1299 128:214 129:176 130:170 131:624 132:141
133:21 134:218 135:54 136:211 137:143 138:286
139:119 140:465 141:252 142:371 143:408 144:484
145:65 146:463 147:218 148:604 149:267 150:157
151:194 152:444 153:172 154:6 155:389 156:205
157:326 158:157 159:425 160:327 161:205 162:371
163:165 164:508 165:367 166:541 167:444 168:817
169:146 170:879 171:87 172:4 173:1742 174:593
175:405 176:290 177:376 178:1112 180:1138 181:39
182:643 183:231 184:396 185:1 186:1412 187:778
188:977 189:1158 190:5189 192:5888 193:5054 194:3550
195:3106 196:1254 197:168 198:3565 199:4176 200:5456
201:1701 202:8261 203:8425 204:4227 205:2341 206:2505
207:2746 208:4024 209:3558 210:2642 211:1454 212:2016
213:1805 214:809 215:97 216:4876 217:1607 218:561
219:333 220:1217 221:503 222:297 223:273
End of report
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