Routing Table Report 08:00 +10GMT Thu 01 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 377098
Prefixes after maximum aggregation: 165387
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 188316
Total ASes present in the Internet Routing Table: 37599
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 32421
Origin ASes announcing only one prefix: 15499
Transit ASes present in the Internet Routing Table: 5178
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: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2568
Unregistered ASNs in the Routing Table: 1012
Number of 32-bit ASNs allocated by the RIRs: 2017
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3963
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2513347328
Equivalent to 149 /8s, 206 /16s and 163 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 157657
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90229
Total APNIC prefixes after maximum aggregation: 29932
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87657
Unique aggregates announced from the APNIC address blocks: 38655
APNIC Region origin ASes present in the Internet Routing Table: 4546
APNIC Prefixes per ASN: 19.28
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 699
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: 630510592
Equivalent to 37 /8s, 148 /16s and 212 /24s
Percentage of available APNIC address space announced: 80.0
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: 144928
Total ARIN prefixes after maximum aggregation: 74167
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117439
Unique aggregates announced from the ARIN address blocks: 48635
ARIN Region origin ASes present in the Internet Routing Table: 14699
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5628
ARIN Region transit ASes present in the Internet Routing Table: 1494
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: 803266560
Equivalent to 47 /8s, 224 /16s and 224 /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: 92984
Total RIPE prefixes after maximum aggregation: 51300
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85213
Unique aggregates announced from the RIPE address blocks: 54621
RIPE Region origin ASes present in the Internet Routing Table: 16147
RIPE Prefixes per ASN: 5.28
RIPE Region origin ASes announcing only one prefix: 8010
RIPE Region transit ASes present in the Internet Routing Table: 2532
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: 492088320
Equivalent to 29 /8s, 84 /16s and 172 /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: 35987
Total LACNIC prefixes after maximum aggregation: 7888
LACNIC Deaggregation factor: 4.56
Prefixes being announced from the LACNIC address blocks: 35545
Unique aggregates announced from the LACNIC address blocks: 18764
LACNIC Region origin ASes present in the Internet Routing Table: 1537
LACNIC Prefixes per ASN: 23.13
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 271
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: 94252288
Equivalent to 5 /8s, 158 /16s and 45 /24s
Percentage of available LACNIC address space announced: 62.4
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: 8306
Total AfriNIC prefixes after maximum aggregation: 2027
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6395
Unique aggregates announced from the AfriNIC address blocks: 2013
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 12.82
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: 3.4
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: 29942528
Equivalent to 1 /8s, 200 /16s and 227 /24s
Percentage of available AfriNIC address space announced: 44.6
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 1951 11102 667 Korea Telecom (KIX)
7545 1621 303 85 TPG Internet Pty Ltd
4755 1498 381 157 TATA Communications formerly
17974 1454 503 38 PT Telekomunikasi Indonesia
9829 1166 989 28 National Internet Backbone
9583 1095 80 494 Sify Limited
7552 979 1062 11 Vietel Corporation
24560 967 343 218 Bharti Airtel Ltd., Telemedia
18101 959 121 155 Reliance Infocom Ltd Internet
4808 948 1978 278 CNCGROUP IP network China169
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 3480 3814 218 BellSouth.net Inc.
7029 2945 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
1785 1853 680 121 PaeTec Communications, Inc.
4323 1610 1089 386 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
22773 1507 2909 104 Cox Communications Inc.
30036 1436 257 674 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1324 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 1395 480 15 Corbina telecom
6830 644 1927 412 UPC Broadband
34984 613 114 193 BILISIM TELEKOM
20940 559 186 441 Akamai Technologies European
9116 544 326 32 Goldenlines main autonomous s
3320 511 8168 388 Deutsche Telekom AG
12479 488 598 10 France Telecom Espana SA
3292 481 2106 408 TDC Data Networks
8866 460 133 26 Bulgarian Telecommunication C
8551 451 367 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 1701 315 179 Types of queries are: POCs, o
28573 1514 1059 72 Types of queries are: POCs, o
8151 1314 2964 338 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
27947 599 72 88 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 Types of queries are: POCs, o
6503 542 434 69 Axtel, S.A.B. de C.V.
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
8452 928 958 13 TEDATA
24863 780 146 32 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 191 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
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 3480 3814 218 BellSouth.net Inc.
7029 2945 1042 212 Windstream Communications Inc
18566 2093 382 176 Covad Communications Co.
4766 1951 11102 667 Korea Telecom (KIX)
1785 1853 680 121 PaeTec Communications, Inc.
10620 1701 315 179 Types of queries are: POCs, o
7545 1621 303 85 TPG Internet Pty Ltd
4323 1610 1089 386 tw telecom holdings, inc.
20115 1599 1546 624 Charter Communications
28573 1514 1059 72 Types of queries are: POCs, o
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 2945 2733 Windstream Communications Inc
18566 2093 1917 Covad Communications Co.
1785 1853 1732 PaeTec Communications, Inc.
7545 1621 1536 TPG Internet Pty Ltd
10620 1701 1522 Types of queries are: POCs, o
28573 1514 1442 Types of queries are: POCs, o
17974 1454 1416 PT Telekomunikasi Indonesia
22773 1507 1403 Cox Communications Inc.
8402 1395 1380 Corbina telecom
4755 1498 1341 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
128.0.0.0/21 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 /11:82 /12:237
/13:463 /14:805 /15:1431 /16:11999 /17:6099 /18:10115
/19:20149 /20:27691 /21:27864 /22:37752 /23:35349 /24:196462
/25:11 /26:21 /27:21 /28:153 /29:134 /30:65
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2558 2945 Windstream Communications Inc
6389 2123 3480 BellSouth.net Inc.
18566 2043 2093 Covad Communications Co.
10620 1596 1701 Types of queries are: POCs, o
30036 1396 1436 Mediacom Communications Corp
8402 1370 1395 Corbina telecom
11492 1119 1156 CABLE ONE, INC.
1785 1058 1853 PaeTec Communications, Inc.
7011 1052 1169 Frontier Communications of Am
22773 967 1507 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:434 2:455 4:15 5:1 6:3 8:357
12:1950 13:1 14:547 15:11 16:3 17:7
20:9 23:71 24:1690 27:1043 31:715 32:61
33:2 34:2 36:4 38:763 40:114 41:2872
42:65 44:3 46:1104 47:3 49:293 50:447
52:13 55:6 56:2 57:45 58:870 59:475
60:355 61:1065 62:920 63:1961 64:4049 65:2308
66:4350 67:1999 68:1173 69:3156 70:902 71:359
72:1813 74:2644 75:430 76:320 77:898 78:862
79:435 80:1140 81:848 82:528 83:529 84:470
85:1164 86:415 87:905 88:354 89:1584 90:246
91:4303 92:526 93:1389 94:1324 95:1057 96:389
97:285 98:774 99:37 101:124 103:509 106:7
107:101 108:87 109:1088 110:659 111:805 112:360
113:480 114:615 115:683 116:878 117:691 118:854
119:1241 120:340 121:652 122:1569 123:1026 124:1290
125:1299 128:240 129:174 130:174 131:627 132:147
133:21 134:218 135:54 136:210 137:143 138:285
139:121 140:463 141:249 142:362 143:400 144:495
145:66 146:469 147:222 148:620 149:269 150:157
151:192 152:447 153:171 154:6 155:394 156:204
157:326 158:157 159:426 160:333 161:205 162:361
163:165 164:512 165:387 166:540 167:453 168:819
169:144 170:824 171:87 172:4 173:1761 174:584
175:399 176:321 177:401 178:1129 180:1106 181:39
182:655 183:243 184:399 185:1 186:1400 187:780
188:945 189:1165 190:5215 192:5897 193:5096 194:3549
195:3116 196:1248 197:170 198:3563 199:4194 200:5439
201:1692 202:8252 203:8401 204:4242 205:2389 206:2581
207:2765 208:4006 209:3525 210:2670 211:1444 212:1995
213:1808 214:817 215:96 216:4909 217:1485 218:557
219:333 220:1207 221:504 222:268 223:278
End of report