Routing Table Report 08:00 +10GMT Sat 12 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 341195
Prefixes after maximum aggregation: 155092
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 170853
Total ASes present in the Internet Routing Table: 35707
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 30899
Origin ASes announcing only one prefix: 14971
Transit ASes present in the Internet Routing Table: 4808
Transit-only ASes present in the Internet Routing Table: 110
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (42805) 21
Prefixes from unregistered ASNs in the Routing Table: 1327
Unregistered ASNs in the Routing Table: 258
Number of 32-bit ASNs allocated by the RIRs: 1110
Prefixes from 32-bit ASNs in the Routing Table: 1677
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 202
Number of addresses announced to Internet: 2408629760
Equivalent to 143 /8s, 144 /16s and 198 /24s
Percentage of available address space announced: 65.0
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 139709
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81891
Total APNIC prefixes after maximum aggregation: 27832
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79382
Unique aggregates announced from the APNIC address blocks: 35714
APNIC Region origin ASes present in the Internet Routing Table: 4262
APNIC Prefixes per ASN: 18.63
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 655
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 586874112
Equivalent to 34 /8s, 250 /16s and 253 /24s
Percentage of available APNIC address space announced: 74.4
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: 136221
Total ARIN prefixes after maximum aggregation: 69761
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109123
Unique aggregates announced from the ARIN address blocks: 44802
ARIN Region origin ASes present in the Internet Routing Table: 14121
ARIN Prefixes per ASN: 7.73
ARIN Region origin ASes announcing only one prefix: 5399
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: 23
Number of ARIN addresses announced to Internet: 786478848
Equivalent to 46 /8s, 224 /16s and 183 /24s
Percentage of available ARIN address space announced: 62.5
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: 82278
Total RIPE prefixes after maximum aggregation: 46437
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75576
Unique aggregates announced from the RIPE address blocks: 48850
RIPE Region origin ASes present in the Internet Routing Table: 15301
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7785
RIPE Region transit ASes present in the Internet Routing Table: 2357
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 459054848
Equivalent to 27 /8s, 92 /16s and 159 /24s
Percentage of available RIPE address space announced: 74.0
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: 31096
Total LACNIC prefixes after maximum aggregation: 7252
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 30023
Unique aggregates announced from the LACNIC address blocks: 15955
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.14
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80621568
Equivalent to 4 /8s, 206 /16s and 48 /24s
Percentage of available LACNIC address space announced: 53.4
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: 7484
Total AfriNIC prefixes after maximum aggregation: 1815
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5880
Unique aggregates announced from the AfriNIC address blocks: 1828
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21840128
Equivalent to 1 /8s, 77 /16s and 65 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1779 9485 523 Korea Telecom (KIX)
7545 1612 301 84 TPG Internet Pty Ltd
4755 1412 637 162 TATA Communications formerly
17974 1407 459 29 PT Telekomunikasi Indonesia
24560 1108 323 181 Bharti Airtel Ltd., Telemedia
9583 1042 76 487 Sify Limited
17488 952 162 104 Hathway IP Over Cable Interne
4808 939 2034 271 CNCGROUP IP network China169
18101 927 117 142 Reliance Infocom Ltd Internet
9829 898 763 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 3705 3855 265 BellSouth.net Inc.
4323 2624 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
1785 1789 697 131 PaeTec Communications, Inc.
20115 1529 1534 646 Charter Communications
6478 1500 296 62 AT&T Services, Inc.
7018 1370 6708 887 AT&T Services, Inc.
2386 1300 554 937 AT&T Data Communications Serv
11492 1282 236 73 CABLE ONE, INC.
18566 1279 310 103 Covad Communications Co.
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 509 1764 315 UPC Broadband
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 456 97 137 BILISIM TELEKOM
3292 445 1996 387 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
8551 405 355 38 Bezeq International
20940 404 94 311 Akamai Technologies European
3320 403 7617 352 Deutsche Telekom AG
702 400 1803 313 >>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 1371 255 165 Types of queries are: POCs, o
28573 1220 961 82 Types of queries are: POCs, o
8151 1208 2645 356 Uninet S.A. de C.V.
6503 1179 355 79 Axtel, S.A.B. de C.V.
7303 867 447 128 Telecom Argentina S.A.
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 505 220 95 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 462 35 37 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
8452 777 445 11 TEDATA
24863 760 147 37 LINKdotNET AS number
36992 584 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
15475 220 56 9 Nile Online
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
16637 148 422 84 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 3705 3855 265 BellSouth.net Inc.
4323 2624 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
1785 1789 697 131 PaeTec Communications, Inc.
4766 1779 9485 523 Korea Telecom (KIX)
23456 1677 425 943 32-bit ASN transition
7545 1612 301 84 TPG Internet Pty Ltd
20115 1529 1534 646 Charter Communications
6478 1500 296 62 AT&T Services, Inc.
4755 1412 637 162 TATA Communications formerly
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 2624 2220 tw telecom holdings, inc.
1785 1789 1658 PaeTec Communications, Inc.
19262 1842 1559 Verizon Online LLC
7545 1612 1528 TPG Internet Pty Ltd
6478 1500 1438 AT&T Services, Inc.
17974 1407 1378 PT Telekomunikasi Indonesia
4766 1779 1256 Korea Telecom (KIX)
4755 1412 1250 TATA Communications formerly
11492 1282 1209 CABLE ONE, INC.
10620 1371 1206 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,
31.28.0.0/19 29076 Citytelecom.ru
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network Inc.
41.57.192.0/18 22750 BCSNET
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 /11:71 /12:216
/13:443 /14:763 /15:1363 /16:11459 /17:5624 /18:9297
/19:18913 /20:24341 /21:24659 /22:32793 /23:31447 /24:179423
/25:11 /26:10 /27:16 /28:121 /29:62 /30:30
/31:0 /32:75
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2283 3705 BellSouth.net Inc.
6478 1454 1500 AT&T Services, Inc.
4323 1412 2624 tw telecom holdings, inc.
10620 1262 1371 Types of queries are: POCs, o
18566 1257 1279 Covad Communications Co.
11492 1239 1282 CABLE ONE, INC.
7011 1063 1166 Frontier Communications of Am
1785 1055 1789 PaeTec Communications, Inc.
23456 979 1677 32-bit ASN transition
6503 956 1179 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:177 2:45 4:13 5:1 8:331 12:2028
13:1 14:391 15:15 16:3 17:8 20:9
23:1 24:1482 27:575 32:57 33:5 34:2
37:1 38:697 40:101 41:2289 44:3 46:585
47:5 49:145 50:84 52:12 55:7 56:2
57:29 58:765 59:475 60:389 61:1018 62:1094
63:1935 64:3735 65:2359 66:4155 67:1761 68:1024
69:2911 70:737 71:400 72:2007 73:1 74:2313
75:292 76:344 77:864 78:704 79:444 80:1047
81:823 82:542 83:474 84:652 85:1051 86:553
87:752 88:355 89:1572 90:156 91:3465 92:495
93:1041 94:1200 95:755 96:423 97:251 98:791
99:33 101:27 107:3 108:88 109:954 110:472
111:687 112:303 113:359 114:478 115:634 116:917
117:672 118:663 119:1010 120:237 121:679 122:1629
123:1060 124:1252 125:1221 128:212 129:147 130:166
131:566 132:102 133:20 134:210 135:49 136:213
137:144 138:291 139:116 140:469 141:196 142:341
143:380 144:483 145:51 146:423 147:198 148:617
149:273 150:158 151:230 152:303 153:179 154:2
155:348 156:173 157:312 158:129 159:372 160:314
161:195 162:273 163:151 164:485 165:337 166:497
167:422 168:736 169:148 170:747 171:68 172:2
173:1288 174:519 175:314 176:1 177:4 178:760
180:786 182:337 183:251 184:210 186:992 187:813
188:909 189:1047 190:4343 192:5748 193:4793 194:3493
195:2946 196:1181 197:3 198:3498 199:3800 200:5544
201:1576 202:8036 203:8331 204:4044 205:2314 206:2529
207:3004 208:3894 209:3466 210:2603 211:1326 212:1915
213:1731 214:753 215:62 216:4863 217:1611 218:520
219:374 220:1195 221:433 222:315 223:93
End of report
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