Routing Table Report 08:00 +10GMT Thu 08 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 393574
Prefixes after maximum aggregation: 168736
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 192917
Total ASes present in the Internet Routing Table: 38103
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 32838
Origin ASes announcing only one prefix: 15515
Transit ASes present in the Internet Routing Table: 5265
Transit-only ASes present in the Internet Routing Table: 131
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: 1151
Unregistered ASNs in the Routing Table: 212
Number of 32-bit ASNs allocated by the RIRs: 2311
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4917
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 539
Number of addresses announced to Internet: 2561250048
Equivalent to 152 /8s, 169 /16s and 147 /24s
Percentage of available address space announced: 69.1
Percentage of allocated address space announced: 69.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 165938
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92803
Total APNIC prefixes after maximum aggregation: 30565
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90189
Unique aggregates announced from the APNIC address blocks: 37778
APNIC Region origin ASes present in the Internet Routing Table: 4617
APNIC Prefixes per ASN: 19.53
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 700
Average APNIC Region AS path length visible: 4.1
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: 658622464
Equivalent to 39 /8s, 65 /16s and 200 /24s
Percentage of available APNIC address space announced: 83.5
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: 147597
Total ARIN prefixes after maximum aggregation: 75165
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119383
Unique aggregates announced from the ARIN address blocks: 49796
ARIN Region origin ASes present in the Internet Routing Table: 14868
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5667
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 806603520
Equivalent to 48 /8s, 19 /16s and 203 /24s
Percentage of available ARIN address space announced: 64.1
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: 100511
Total RIPE prefixes after maximum aggregation: 52795
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91947
Unique aggregates announced from the RIPE address blocks: 56883
RIPE Region origin ASes present in the Internet Routing Table: 16326
RIPE Prefixes per ASN: 5.63
RIPE Region origin ASes announcing only one prefix: 7991
RIPE Region transit ASes present in the Internet Routing Table: 2578
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501626624
Equivalent to 29 /8s, 230 /16s and 55 /24s
Percentage of available RIPE address space announced: 80.8
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: 38253
Total LACNIC prefixes after maximum aggregation: 7991
LACNIC Deaggregation factor: 4.79
Prefixes being announced from the LACNIC address blocks: 38145
Unique aggregates announced from the LACNIC address blocks: 19712
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.39
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 97940480
Equivalent to 5 /8s, 214 /16s and 116 /24s
Percentage of available LACNIC address space announced: 64.9
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: 8738
Total AfriNIC prefixes after maximum aggregation: 2105
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6849
Unique aggregates announced from the AfriNIC address blocks: 2161
AfriNIC Region origin ASes present in the Internet Routing Table: 519
AfriNIC Prefixes per ASN: 13.20
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31553024
Equivalent to 1 /8s, 225 /16s and 118 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1925 11104 676 Korea Telecom (KIX)
17974 1652 503 36 PT Telekomunikasi Indonesia
7545 1645 303 89 TPG Internet Pty Ltd
4755 1550 386 157 TATA Communications formerly
9583 1199 91 511 Sify Limited
9829 1188 1001 30 National Internet Backbone
7552 1101 1062 11 Vietel Corporation
24560 1001 378 172 Bharti Airtel Ltd., Telemedia
4808 978 1946 280 CNCGROUP IP network China169
18101 951 131 156 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
7029 3452 1040 172 Windstream Communications Inc
6389 3413 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
1785 1882 680 127 PaeTec Communications, Inc.
20115 1633 1555 633 Charter Communications
4323 1603 1075 382 tw telecom holdings, inc.
22773 1544 2910 111 Cox Communications Inc.
30036 1415 258 756 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1293 9809 851 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 1684 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2184 60 NEUF CEGETEL (formerly LDCOM
34984 657 188 170 BILISIM TELEKOM
6830 639 1926 410 UPC Broadband
12479 630 646 54 France Telecom Espana SA
20940 623 202 483 Akamai Technologies European
8551 603 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 540 37 9 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 1763 326 160 Types of queries are: POCs, o
28573 1676 1089 55 Types of queries are: POCs, o
8151 1344 2994 340 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 898 672 33 Tim Celular S.A.
27947 655 68 110 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
6503 562 418 67 Axtel, S.A.B. de C.V.
3816 561 240 89 Types of queries are: POCs, o
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 1252 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
33776 186 12 19 Starcomms Nigeria Limited
24835 181 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
29571 153 15 16 Ci Telecom Autonomous system
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
7029 3452 1040 172 Windstream Communications Inc
6389 3413 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
4766 1925 11104 676 Korea Telecom (KIX)
1785 1882 680 127 PaeTec Communications, Inc.
10620 1763 326 160 Types of queries are: POCs, o
8402 1684 544 16 Corbina telecom
28573 1676 1089 55 Types of queries are: POCs, o
17974 1652 503 36 PT Telekomunikasi Indonesia
7545 1645 303 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3413 3214 BellSouth.net Inc.
18566 2091 1914 Covad Communications Co.
1785 1882 1755 PaeTec Communications, Inc.
8402 1684 1668 Corbina telecom
28573 1676 1621 Types of queries are: POCs, o
17974 1652 1616 PT Telekomunikasi Indonesia
10620 1763 1603 Types of queries are: POCs, o
7545 1645 1556 TPG Internet Pty Ltd
22773 1544 1433 Cox Communications Inc.
2118 1421 1408 EUnet/RELCOM Autonomous Syste
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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /8:22 /9:12 /10:28 /11:81 /12:236
/13:458 /14:816 /15:1473 /16:12126 /17:6208 /18:10358
/19:20465 /20:28375 /21:29027 /22:39515 /23:36870 /24:206952
/25:11 /26:21 /27:20 /28:154 /29:140 /30:66
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3090 3452 Windstream Communications Inc
6389 2103 3413 BellSouth.net Inc.
18566 2040 2091 Covad Communications Co.
8402 1662 1684 Corbina telecom
10620 1660 1763 Types of queries are: POCs, o
30036 1364 1415 Mediacom Communications Corp
11492 1124 1161 CABLE ONE, INC.
1785 1064 1882 PaeTec Communications, Inc.
8452 1062 1252 TEDATA
7011 1042 1157 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:521 2:682 4:14 6:3 8:392 12:1962
13:1 14:599 15:12 16:3 17:7 20:8
23:142 24:1740 27:1208 31:983 32:57 33:2
34:2 36:9 37:231 38:774 40:117 41:3009
42:121 44:3 46:1388 47:3 49:335 50:512
52:13 54:5 55:11 56:3 57:36 58:908
59:486 60:280 61:1077 62:978 63:2005 64:4093
65:2274 66:4456 67:2030 68:1164 69:3165 70:908
71:409 72:1791 74:2646 75:470 76:319 77:970
78:950 79:484 80:1210 81:887 82:632 83:539
84:594 85:1163 86:733 87:915 88:334 89:1567
90:277 91:4556 92:515 93:1383 94:1371 95:1103
96:417 97:316 98:828 99:38 100:5 101:143
103:862 106:63 107:168 108:208 109:1531 110:724
111:864 112:425 113:531 114:605 115:763 116:858
117:703 118:904 119:1246 120:371 121:663 122:1580
123:1077 124:1299 125:1335 128:506 129:182 130:254
131:588 132:157 133:21 134:226 135:62 136:210
137:182 138:275 139:144 140:463 141:265 142:374
143:413 144:507 145:69 146:485 147:243 148:705
149:299 150:155 151:197 152:446 153:171 154:6
155:437 156:210 157:338 158:162 159:445 160:326
161:227 162:339 163:176 164:527 165:395 166:562
167:464 168:806 169:147 170:839 171:119 172:4
173:1707 174:591 175:421 176:540 177:542 178:1282
180:1186 181:68 182:755 183:281 184:443 185:1
186:2106 187:847 188:1072 189:1207 190:5462 192:5953
193:5571 194:4366 195:3401 196:1265 197:168 198:3589
199:4398 200:5634 201:1761 202:8146 203:8585 204:4281
205:2429 206:2664 207:2729 208:4039 209:3548 210:2687
211:1449 212:1968 213:1882 214:844 215:102 216:5012
217:1527 218:532 219:329 220:1223 221:548 222:296
223:310
End of report
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