Routing Table Report 08:00 +10GMT Fri 16 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 380779
Prefixes after maximum aggregation: 165885
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188949
Total ASes present in the Internet Routing Table: 37706
Prefixes per ASN: 10.10
Origin-only ASes present in the Internet Routing Table: 32485
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5221
Transit-only ASes present in the Internet Routing Table: 129
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: 2641
Unregistered ASNs in the Routing Table: 1060
Number of 32-bit ASNs allocated by the RIRs: 2092
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4159
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2519487488
Equivalent to 150 /8s, 44 /16s and 84 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 159453
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90588
Total APNIC prefixes after maximum aggregation: 29897
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 87975
Unique aggregates announced from the APNIC address blocks: 38515
APNIC Region origin ASes present in the Internet Routing Table: 4556
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 631254272
Equivalent to 37 /8s, 160 /16s and 45 /24s
Percentage of available APNIC address space announced: 80.1
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: 145275
Total ARIN prefixes after maximum aggregation: 74370
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117645
Unique aggregates announced from the ARIN address blocks: 48682
ARIN Region origin ASes present in the Internet Routing Table: 14736
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5649
ARIN Region transit ASes present in the Internet Routing Table: 1500
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: 804547328
Equivalent to 47 /8s, 244 /16s and 107 /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: 95390
Total RIPE prefixes after maximum aggregation: 51583
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87567
Unique aggregates announced from the RIPE address blocks: 55037
RIPE Region origin ASes present in the Internet Routing Table: 16198
RIPE Prefixes per ASN: 5.41
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2562
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: 494357760
Equivalent to 29 /8s, 119 /16s and 77 /24s
Percentage of available RIPE address space announced: 79.6
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: 36216
Total LACNIC prefixes after maximum aggregation: 7900
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35864
Unique aggregates announced from the LACNIC address blocks: 18888
LACNIC Region origin ASes present in the Internet Routing Table: 1544
LACNIC Prefixes per ASN: 23.23
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 94768384
Equivalent to 5 /8s, 166 /16s and 13 /24s
Percentage of available LACNIC address space announced: 62.8
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: 8445
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6502
Unique aggregates announced from the AfriNIC address blocks: 2076
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.98
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 30852352
Equivalent to 1 /8s, 214 /16s and 197 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1950 11101 664 Korea Telecom (KIX)
17974 1636 503 38 PT Telekomunikasi Indonesia
7545 1629 303 86 TPG Internet Pty Ltd
4755 1499 385 158 TATA Communications formerly
9829 1164 989 28 National Internet Backbone
9583 1099 81 496 Sify Limited
7552 1009 1062 11 Vietel Corporation
24560 996 385 167 Bharti Airtel Ltd., Telemedia
18101 965 122 157 Reliance Infocom Ltd Internet
4808 938 1950 271 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 3482 3814 219 BellSouth.net Inc.
7029 2951 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1857 680 120 PaeTec Communications, Inc.
4323 1620 1089 387 tw telecom holdings, inc.
20115 1603 1549 626 Charter Communications
22773 1512 2909 105 Cox Communications Inc.
30036 1459 261 676 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1314 7047 864 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 1497 480 15 Corbina telecom
15557 1036 2161 64 NEUF CEGETEL (formerly LDCOM
2118 1033 99 14 EUnet/RELCOM Autonomous Syste
6830 647 1928 413 UPC Broadband
34984 624 132 194 BILISIM TELEKOM
12479 545 630 48 France Telecom Espana SA
20940 543 175 435 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 Deutsche Telekom AG
3292 481 2106 408 TDC Data Networks
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 1717 318 155 Types of queries are: POCs, o
28573 1566 1064 75 Types of queries are: POCs, o
8151 1314 2968 340 Uninet S.A. de C.V.
7303 1248 752 176 Telecom Argentina S.A.
27947 607 73 93 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 543 434 69 Axtel, S.A.B. de C.V.
11172 529 102 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 963 958 13 TEDATA
24863 786 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 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 3482 3814 219 BellSouth.net Inc.
7029 2951 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1950 11101 664 Korea Telecom (KIX)
1785 1857 680 120 PaeTec Communications, Inc.
10620 1717 318 155 Types of queries are: POCs, o
17974 1636 503 38 PT Telekomunikasi Indonesia
7545 1629 303 86 TPG Internet Pty Ltd
4323 1620 1089 387 tw telecom holdings, inc.
20115 1603 1549 626 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 2951 2738 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1857 1737 PaeTec Communications, Inc.
17974 1636 1598 PT Telekomunikasi Indonesia
10620 1717 1562 Types of queries are: POCs, o
7545 1629 1543 TPG Internet Pty Ltd
28573 1566 1491 Types of queries are: POCs, o
8402 1497 1482 Corbina telecom
22773 1512 1407 Cox Communications Inc.
4755 1499 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
37.9.0.0/19 44050 RIPE Network Coordination Cen
37.9.48.0/20 44050 RIPE Network Coordination Cen
37.9.144.0/20 8439 AIST Autonomous System
37.9.168.0/21 51013 Websupport s.r.o.
37.9.192.0/21 25424 INTERNEXT 2000 S.R.O.
37.10.0.0/17 23456 32-bit ASN transition
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 /12:238
/13:465 /14:810 /15:1440 /16:12013 /17:6095 /18:10143
/19:20228 /20:27822 /21:28084 /22:37960 /23:35524 /24:199272
/25:11 /26:21 /27:20 /28:153 /29:135 /30:66
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2563 2951 Windstream Communications Inc
6389 2123 3482 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1612 1717 Types of queries are: POCs, o
8402 1472 1497 Corbina telecom
30036 1419 1459 Mediacom Communications Corp
11492 1105 1142 CABLE ONE, INC.
1785 1059 1857 PaeTec Communications, Inc.
7011 1032 1149 Frontier Communications of Am
15557 992 1036 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:449 2:417 4:15 5:1 6:3 8:360
12:1943 13:1 14:554 15:11 16:3 17:7
20:9 23:74 24:1696 27:1109 31:732 32:62
33:2 34:2 36:4 38:771 40:114 41:2951
42:78 44:3 46:1136 47:3 49:277 50:462
52:13 55:4 56:2 57:41 58:878 59:481
60:339 61:1067 62:941 63:1961 64:4082 65:2302
66:4359 67:2005 68:1182 69:3127 70:916 71:378
72:1777 74:2638 75:432 76:320 77:933 78:855
79:438 80:1168 81:848 82:530 83:532 84:569
85:1167 86:738 87:901 88:342 89:1579 90:248
91:4359 92:543 93:1502 94:1316 95:1069 96:392
97:286 98:774 99:38 101:131 103:551 106:10
107:112 108:98 109:1400 110:671 111:816 112:366
113:487 114:589 115:687 116:864 117:696 118:886
119:1223 120:283 121:648 122:1555 123:1020 124:1291
125:1292 128:411 129:181 130:179 131:581 132:154
133:21 134:218 135:54 136:211 137:148 138:286
139:122 140:466 141:254 142:365 143:390 144:501
145:66 146:470 147:223 148:615 149:271 150:157
151:192 152:443 153:171 154:6 155:397 156:207
157:333 158:155 159:432 160:340 161:204 162:359
163:176 164:517 165:390 166:542 167:458 168:811
169:125 170:821 171:93 172:4 173:1790 174:599
175:404 176:326 177:419 178:1142 180:1200 181:39
182:659 183:260 184:403 185:1 186:1423 187:787
188:949 189:1179 190:5260 192:5932 193:5126 194:4287
195:3372 196:1268 197:174 198:3576 199:4184 200:5440
201:1711 202:8266 203:8417 204:4265 205:2387 206:2580
207:2765 208:4007 209:3540 210:2668 211:1423 212:1993
213:1803 214:797 215:92 216:4897 217:1502 218:554
219:331 220:1216 221:496 222:297 223:249
End of report
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