Routing Table Report 08:00 +10GMT Mon 05 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392808
Prefixes after maximum aggregation: 168453
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 194074
Total ASes present in the Internet Routing Table: 38084
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 32823
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5261
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: 1149
Unregistered ASNs in the Routing Table: 207
Number of 32-bit ASNs allocated by the RIRs: 2307
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4889
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 441
Number of addresses announced to Internet: 2541532928
Equivalent to 151 /8s, 124 /16s and 183 /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: 165539
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92688
Total APNIC prefixes after maximum aggregation: 30498
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90054
Unique aggregates announced from the APNIC address blocks: 39369
APNIC Region origin ASes present in the Internet Routing Table: 4611
APNIC Prefixes per ASN: 19.53
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 702
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: 640847360
Equivalent to 38 /8s, 50 /16s and 142 /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: 147279
Total ARIN prefixes after maximum aggregation: 75029
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119232
Unique aggregates announced from the ARIN address blocks: 49696
ARIN Region origin ASes present in the Internet Routing Table: 14863
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5676
ARIN Region transit ASes present in the Internet Routing Table: 1513
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: 805496064
Equivalent to 48 /8s, 2 /16s and 229 /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: 100264
Total RIPE prefixes after maximum aggregation: 52758
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91777
Unique aggregates announced from the RIPE address blocks: 56762
RIPE Region origin ASes present in the Internet Routing Table: 16332
RIPE Prefixes per ASN: 5.62
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2571
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: 501376000
Equivalent to 29 /8s, 226 /16s and 100 /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: 38281
Total LACNIC prefixes after maximum aggregation: 7974
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38167
Unique aggregates announced from the LACNIC address blocks: 19682
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 24.42
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 279
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: 97935104
Equivalent to 5 /8s, 214 /16s and 95 /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: 8669
Total AfriNIC prefixes after maximum aggregation: 2084
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6783
Unique aggregates announced from the AfriNIC address blocks: 2155
AfriNIC Region origin ASes present in the Internet Routing Table: 515
AfriNIC Prefixes per ASN: 13.17
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 120
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: 31558912
Equivalent to 1 /8s, 225 /16s and 141 /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 1653 503 37 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 1182 997 29 National Internet Backbone
7552 1088 1062 11 Vietel Corporation
24560 1011 385 167 Bharti Airtel Ltd., Telemedia
4808 976 1945 278 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 3448 1040 172 Windstream Communications Inc
6389 3418 3807 202 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
1785 1879 680 126 PaeTec Communications, Inc.
20115 1630 1550 632 Charter Communications
4323 1607 1075 382 tw telecom holdings, inc.
22773 1537 2910 110 Cox Communications Inc.
30036 1407 253 741 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1291 6995 848 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 1719 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 NEUF CEGETEL (formerly LDCOM
34984 656 188 170 BILISIM TELEKOM
6830 640 1926 411 UPC Broadband
20940 622 202 482 Akamai Technologies European
12479 606 644 55 France Telecom Espana SA
8551 599 360 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 1690 1089 60 Types of queries are: POCs, o
8151 1343 2994 339 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 868 672 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 564 240 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 824 274 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 3448 1040 172 Windstream Communications Inc
6389 3418 3807 202 BellSouth.net Inc.
18566 2091 382 177 Covad Communications Co.
4766 1925 11104 676 Korea Telecom (KIX)
1785 1879 680 126 PaeTec Communications, Inc.
10620 1759 325 169 Types of queries are: POCs, o
8402 1719 544 16 Corbina telecom
28573 1690 1089 60 Types of queries are: POCs, o
17974 1653 503 37 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 3418 3216 BellSouth.net Inc.
18566 2091 1914 Covad Communications Co.
1785 1879 1753 PaeTec Communications, Inc.
8402 1719 1703 Corbina telecom
28573 1690 1630 Types of queries are: POCs, o
17974 1653 1616 PT Telekomunikasi Indonesia
10620 1759 1590 Types of queries are: POCs, o
7545 1643 1555 TPG Internet Pty Ltd
22773 1537 1427 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 /12:234
/13:458 /14:815 /15:1473 /16:12121 /17:6208 /18:10354
/19:20464 /20:28328 /21:28974 /22:39380 /23:36804 /24:206515
/25:11 /26:20 /27:20 /28:153 /29:135 /30:65
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3086 3448 Windstream Communications Inc
6389 2102 3418 BellSouth.net Inc.
18566 2040 2091 Covad Communications Co.
8402 1697 1719 Corbina telecom
10620 1656 1759 Types of queries are: POCs, o
30036 1357 1407 Mediacom Communications Corp
11492 1124 1161 CABLE ONE, INC.
1785 1064 1879 PaeTec Communications, Inc.
8452 1059 1249 TEDATA
7011 1040 1156 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:520 2:701 4:14 6:3 8:391 12:1961
13:1 14:599 15:11 16:3 17:7 20:8
23:136 24:1733 27:1204 31:982 32:60 33:2
34:2 36:9 37:220 38:774 40:117 41:2974
42:120 44:3 46:1383 47:3 49:334 50:511
52:13 54:5 55:9 56:3 57:36 58:924
59:483 60:284 61:1081 62:975 63:2005 64:4090
65:2278 66:4453 67:2037 68:1165 69:3153 70:908
71:409 72:1789 74:2644 75:470 76:320 77:972
78:966 79:477 80:1208 81:884 82:631 83:539
84:587 85:1159 86:737 87:914 88:334 89:1569
90:284 91:4537 92:515 93:1383 94:1372 95:1108
96:416 97:315 98:796 99:38 100:5 101:150
103:846 106:63 107:167 108:180 109:1525 110:721
111:865 112:425 113:530 114:605 115:776 116:858
117:703 118:901 119:1239 120:361 121:663 122:1573
123:1076 124:1303 125:1316 128:501 129:183 130:258
131:588 132:165 133:21 134:224 135:61 136:210
137:181 138:271 139:142 140:462 141:265 142:374
143:408 144:507 145:69 146:479 147:242 148:704
149:299 150:153 151:198 152:446 153:171 154:6
155:393 156:210 157:338 158:162 159:445 160:322
161:227 162:340 163:177 164:526 165:396 166:562
167:460 168:802 169:147 170:839 171:119 172:4
173:1709 174:584 175:418 176:524 177:538 178:1282
180:1183 181:68 182:749 183:285 184:437 185:1
186:2056 187:850 188:1053 189:1199 190:5513 192:5947
193:5579 194:4353 195:3403 196:1257 197:167 198:3579
199:4390 200:5636 201:1742 202:8142 203:8578 204:4271
205:2425 206:2653 207:2726 208:4040 209:3542 210:2684
211:1451 212:1998 213:1878 214:823 215:90 216:4998
217:1512 218:531 219:328 220:1226 221:548 222:295
223:305
End of report