Routing Table Report 08:00 +10GMT Tue 06 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392964
Prefixes after maximum aggregation: 168549
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 194183
Total ASes present in the Internet Routing Table: 38091
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 32817
Origin ASes announcing only one prefix: 15536
Transit ASes present in the Internet Routing Table: 5274
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: 1147
Unregistered ASNs in the Routing Table: 207
Number of 32-bit ASNs allocated by the RIRs: 2309
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4883
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 452
Number of addresses announced to Internet: 2541947648
Equivalent to 151 /8s, 131 /16s and 11 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 165521
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92772
Total APNIC prefixes after maximum aggregation: 30512
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90167
Unique aggregates announced from the APNIC address blocks: 39457
APNIC Region origin ASes present in the Internet Routing Table: 4613
APNIC Prefixes per ASN: 19.55
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 641033984
Equivalent to 38 /8s, 53 /16s and 103 /24s
Percentage of available APNIC address space announced: 81.3
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: 147425
Total ARIN prefixes after maximum aggregation: 75091
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119292
Unique aggregates announced from the ARIN address blocks: 49698
ARIN Region origin ASes present in the Internet Routing Table: 14862
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5671
ARIN Region transit ASes present in the Internet Routing Table: 1515
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805475584
Equivalent to 48 /8s, 2 /16s and 149 /24s
Percentage of available ARIN address space announced: 64.0
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: 100254
Total RIPE prefixes after maximum aggregation: 52761
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91746
Unique aggregates announced from the RIPE address blocks: 56726
RIPE Region origin ASes present in the Internet Routing Table: 16335
RIPE Prefixes per ASN: 5.62
RIPE Region origin ASes announcing only one prefix: 8005
RIPE Region transit ASes present in the Internet Routing Table: 2586
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: 501428224
Equivalent to 29 /8s, 227 /16s and 48 /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: 38189
Total LACNIC prefixes after maximum aggregation: 7982
LACNIC Deaggregation factor: 4.78
Prefixes being announced from the LACNIC address blocks: 38072
Unique aggregates announced from the LACNIC address blocks: 19667
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 24.34
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 275
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: 97914112
Equivalent to 5 /8s, 214 /16s and 13 /24s
Percentage of available LACNIC address space announced: 64.8
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: 8692
Total AfriNIC prefixes after maximum aggregation: 2094
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6800
Unique aggregates announced from the AfriNIC address blocks: 2162
AfriNIC Region origin ASes present in the Internet Routing Table: 518
AfriNIC Prefixes per ASN: 13.13
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: 31563008
Equivalent to 1 /8s, 225 /16s and 157 /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 1643 303 88 TPG Internet Pty Ltd
4755 1544 386 160 TATA Communications formerly
9583 1199 91 509 Sify Limited
9829 1181 997 29 National Internet Backbone
7552 1088 1062 11 Vietel Corporation
24560 1002 383 166 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 3449 1040 172 Windstream Communications Inc
6389 3421 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
1785 1880 680 127 PaeTec Communications, Inc.
20115 1626 1547 636 Charter Communications
4323 1607 1075 382 tw telecom holdings, inc.
22773 1539 2910 110 Cox Communications Inc.
30036 1398 252 750 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1296 9810 853 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 1696 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 NEUF CEGETEL (formerly LDCOM
34984 657 188 170 BILISIM TELEKOM
6830 639 1926 410 UPC Broadband
20940 623 202 483 Akamai Technologies European
12479 610 644 55 France Telecom Espana SA
8551 602 360 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 1759 325 169 Types of queries are: POCs, o
28573 1692 1089 60 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 651 68 107 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
3816 565 240 89 Types of queries are: POCs, o
6503 562 418 67 Axtel, S.A.B. 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 1249 958 13 TEDATA
24863 822 274 34 LINKdotNET AS number
6713 491 649 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
24835 181 80 8 RAYA Telecom - Egypt
33776 168 12 19 Starcomms Nigeria Limited
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 3449 1040 172 Windstream Communications Inc
6389 3421 3807 199 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
4766 1925 11104 676 Korea Telecom (KIX)
1785 1880 680 127 PaeTec Communications, Inc.
10620 1759 325 169 Types of queries are: POCs, o
8402 1696 544 16 Corbina telecom
28573 1692 1089 60 Types of queries are: POCs, o
17974 1652 503 36 PT Telekomunikasi Indonesia
7545 1643 303 88 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 3421 3222 BellSouth.net Inc.
18566 2091 1914 Covad Communications Co.
1785 1880 1753 PaeTec Communications, Inc.
8402 1696 1680 Corbina telecom
28573 1692 1632 Types of queries are: POCs, o
17974 1652 1616 PT Telekomunikasi Indonesia
10620 1759 1590 Types of queries are: POCs, o
7545 1643 1555 TPG Internet Pty Ltd
22773 1539 1429 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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:458 /14:815 /15:1474 /16:12124 /17:6211 /18:10361
/19:20477 /20:28360 /21:28998 /22:39383 /23:36809 /24:206567
/25:11 /26:21 /27:20 /28:154 /29:138 /30:66
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3087 3449 Windstream Communications Inc
6389 2104 3421 BellSouth.net Inc.
18566 2040 2091 Covad Communications Co.
8402 1674 1696 Corbina telecom
10620 1656 1759 Types of queries are: POCs, o
30036 1348 1398 Mediacom Communications Corp
11492 1124 1161 CABLE ONE, INC.
1785 1064 1880 PaeTec Communications, Inc.
8452 1059 1249 TEDATA
7011 1038 1154 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:523 2:688 4:14 6:3 8:392 12:1963
13:1 14:600 15:12 16:3 17:7 20:8
23:140 24:1735 27:1205 31:980 32:60 33:2
34:2 36:9 37:220 38:774 40:117 41:2985
42:121 44:3 46:1377 47:3 49:332 50:512
52:13 54:5 55:10 56:3 57:34 58:926
59:483 60:280 61:1085 62:976 63:2003 64:4093
65:2278 66:4456 67:2032 68:1162 69:3152 70:908
71:409 72:1789 74:2642 75:470 76:319 77:970
78:965 79:476 80:1215 81:884 82:631 83:539
84:588 85:1162 86:737 87:915 88:333 89:1566
90:285 91:4538 92:514 93:1382 94:1374 95:1104
96:416 97:315 98:802 99:38 100:5 101:145
103:849 106:63 107:167 108:181 109:1527 110:727
111:862 112:425 113:531 114:605 115:777 116:857
117:704 118:903 119:1245 120:370 121:662 122:1580
123:1076 124:1303 125:1317 128:501 129:183 130:259
131:588 132:165 133:21 134:225 135:62 136:210
137:181 138:271 139:142 140:464 141:266 142:374
143:409 144:508 145:69 146:480 147:243 148:704
149:299 150:156 151:198 152:446 153:171 154:6
155:437 156:210 157:337 158:162 159:445 160:321
161:227 162:340 163:177 164:526 165:394 166:562
167:460 168:807 169:147 170:839 171:118 172:4
173:1707 174:592 175:420 176:522 177:529 178:1279
180:1184 181:68 182:751 183:285 184:439 185:1
186:2092 187:851 188:1048 189:1201 190:5430 192:5948
193:5575 194:4358 195:3398 196:1258 197:167 198:3583
199:4396 200:5621 201:1728 202:8167 203:8573 204:4275
205:2428 206:2655 207:2727 208:4037 209:3544 210:2689
211:1448 212:1973 213:1883 214:836 215:101 216:4993
217:1510 218:530 219:328 220:1226 221:548 222:295
223:307
End of report