Routing Table Report 08:00 +10GMT Wed 23 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 342711
Prefixes after maximum aggregation: 155922
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171610
Total ASes present in the Internet Routing Table: 35777
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 30954
Origin ASes announcing only one prefix: 14975
Transit ASes present in the Internet Routing Table: 4823
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1336
Unregistered ASNs in the Routing Table: 268
Number of 32-bit ASNs allocated by the RIRs: 1137
Prefixes from 32-bit ASNs in the Routing Table: 1757
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 196
Number of addresses announced to Internet: 2414816768
Equivalent to 143 /8s, 239 /16s and 46 /24s
Percentage of available address space announced: 65.2
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 140465
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82324
Total APNIC prefixes after maximum aggregation: 28072
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79977
Unique aggregates announced from the APNIC address blocks: 35832
APNIC Region origin ASes present in the Internet Routing Table: 4285
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 660
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 590241024
Equivalent to 35 /8s, 46 /16s and 93 /24s
Percentage of available APNIC address space announced: 74.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 136914
Total ARIN prefixes after maximum aggregation: 70060
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109714
Unique aggregates announced from the ARIN address blocks: 45026
ARIN Region origin ASes present in the Internet Routing Table: 14132
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5386
ARIN Region transit ASes present in the Internet Routing Table: 1388
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787514880
Equivalent to 46 /8s, 240 /16s and 134 /24s
Percentage of available ARIN address space announced: 62.6
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: 82586
Total RIPE prefixes after maximum aggregation: 46629
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75874
Unique aggregates announced from the RIPE address blocks: 49242
RIPE Region origin ASes present in the Internet Routing Table: 15335
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7793
RIPE Region transit ASes present in the Internet Routing Table: 2371
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460551680
Equivalent to 27 /8s, 115 /16s and 118 /24s
Percentage of available RIPE address space announced: 74.2
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: 31156
Total LACNIC prefixes after maximum aggregation: 7252
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 30114
Unique aggregates announced from the LACNIC address blocks: 15912
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.16
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80795392
Equivalent to 4 /8s, 208 /16s and 215 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7293
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.01
Prefixes being announced from the AfriNIC address blocks: 5716
Unique aggregates announced from the AfriNIC address blocks: 1821
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.20
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21878272
Equivalent to 1 /8s, 77 /16s and 214 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1843 9491 582 Korea Telecom (KIX)
7545 1605 302 86 TPG Internet Pty Ltd
4755 1419 638 166 TATA Communications formerly
17974 1405 467 30 PT Telekomunikasi Indonesia
24560 1114 323 183 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
17488 942 162 103 Hathway IP Over Cable Interne
4808 939 2034 271 CNCGROUP IP network China169
18101 932 117 139 Reliance Infocom Ltd Internet
9829 897 763 42 National Internet Backbone
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 3692 3839 261 BellSouth.net Inc.
4323 2614 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
1785 1787 697 131 PaeTec Communications, Inc.
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Services, Inc.
18566 1437 320 159 Covad Communications Co.
7018 1385 6724 898 AT&T Services, Inc.
2386 1298 554 935 AT&T Data Communications Serv
11492 1283 236 73 CABLE ONE, 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
9116 542 328 31 Goldenlines main autonomous s
6830 512 1780 318 UPC Broadband
9198 468 267 15 Kazakhtelecom Data Network Ad
34984 464 98 144 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
20940 413 98 319 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 401 1803 314 >>UNKNOWN<<
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 1382 257 165 Types of queries are: POCs, o
28573 1214 961 82 Types of queries are: POCs, o
8151 1209 2662 351 Uninet S.A. de C.V.
6503 1156 354 74 Axtel, S.A.B. de C.V.
7303 883 463 132 Telecom Argentina S.A.
14420 640 57 93 CORPORACION NACIONAL DE TELEC
22047 545 310 15 Types of queries are: POCs, o
3816 513 221 100 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 476 37 42 Telefonica del Sur S.A.
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
24863 685 147 37 LINKdotNET AS number
8452 660 445 11 TEDATA
15475 486 90 12 Nile Online
36992 303 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 201 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 156 439 88 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 3692 3839 261 BellSouth.net Inc.
4323 2614 1125 406 tw telecom holdings, inc.
4766 1843 9491 582 Korea Telecom (KIX)
19262 1843 4955 283 Verizon Online LLC
1785 1787 697 131 PaeTec Communications, Inc.
23456 1757 438 991 32-bit ASN transition
7545 1605 302 86 TPG Internet Pty Ltd
20115 1526 1534 646 Charter Communications
6478 1518 296 79 AT&T Services, Inc.
18566 1437 320 159 Covad Communications Co.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2614 2208 tw telecom holdings, inc.
1785 1787 1656 PaeTec Communications, Inc.
19262 1843 1560 Verizon Online LLC
7545 1605 1519 TPG Internet Pty Ltd
6478 1518 1439 AT&T Services, Inc.
17974 1405 1375 PT Telekomunikasi Indonesia
18566 1437 1278 Covad Communications Co.
4766 1843 1261 Korea Telecom (KIX)
4755 1419 1253 TATA Communications formerly
10620 1382 1217 Types of queries are: POCs, o
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 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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.
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
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Comcast Cable Communications,
31.24.0.0/21 16082 Spitfire Digital Networks Aut
31.24.8.0/21 8758 Iway AG
31.24.32.0/21 43082 ServerSpace Ltd
31.24.40.0/21 43988 Access Basic Server S.L.
31.28.32.0/19 8439 AIST Autonomous System
37.0.0.0/16 12654 RIPE NCC RIS Project
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 /9:10 /10:26 /11:72 /12:216
/13:445 /14:763 /15:1372 /16:11474 /17:5628 /18:9304
/19:18950 /20:24437 /21:24847 /22:33099 /23:31513 /24:180075
/25:11 /26:17 /27:25 /28:156 /29:95 /30:45
/31:0 /32:109
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2280 3692 BellSouth.net Inc.
6478 1472 1518 AT&T Services, Inc.
18566 1415 1437 Covad Communications Co.
4323 1405 2614 tw telecom holdings, inc.
10620 1273 1382 Types of queries are: POCs, o
11492 1240 1283 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1054 1787 PaeTec Communications, Inc.
23456 1010 1757 32-bit ASN transition
19262 954 1843 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:222 2:43 4:13 5:1 8:335 12:2028
13:1 14:386 15:15 16:3 17:8 20:9
23:1 24:1488 27:586 32:56 33:4 34:2
37:1 38:702 40:101 41:2205 44:3 46:653
47:4 49:152 50:93 52:12 55:3 56:2
57:27 58:760 59:473 60:382 61:1012 62:1047
63:1936 64:3824 65:2352 66:4233 67:1784 68:1027
69:2930 70:736 71:405 72:2013 73:1 74:2346
75:292 76:347 77:873 78:705 79:450 80:1062
81:820 82:525 83:479 84:632 85:1047 86:570
87:759 88:355 89:1571 90:156 91:3523 92:491
93:1038 94:1212 95:769 96:450 97:251 98:819
99:33 101:27 107:3 108:88 109:927 110:479
111:709 112:305 113:369 114:477 115:646 116:928
117:674 118:668 119:1014 120:240 121:676 122:1616
123:1052 124:1276 125:1253 128:213 129:150 130:166
131:565 132:102 133:20 134:213 135:49 136:212
137:143 138:294 139:117 140:467 141:203 142:342
143:381 144:477 145:51 146:432 147:212 148:617
149:274 150:157 151:230 152:295 153:179 154:2
155:360 156:173 157:313 158:130 159:373 160:314
161:198 162:274 163:145 164:484 165:336 166:504
167:420 168:737 169:149 170:751 171:69 172:2
173:1322 174:532 175:317 176:1 177:14 178:766
180:803 181:2 182:355 183:248 184:213 186:1016
187:804 188:890 189:1049 190:4383 192:5758 193:4792
194:3486 195:2934 196:1189 197:3 198:3496 199:3809
200:5490 201:1570 202:8055 203:8321 204:4021 205:2317
206:2538 207:3006 208:3903 209:3461 210:2593 211:1329
212:1948 213:1738 214:771 215:63 216:4825 217:1633
218:534 219:374 220:1193 221:436 222:309 223:94
End of report
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