Routing Table Report 08:00 +10GMT Thu 03 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 343696
Prefixes after maximum aggregation: 156286
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171941
Total ASes present in the Internet Routing Table: 35821
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 30987
Origin ASes announcing only one prefix: 14949
Transit ASes present in the Internet Routing Table: 4834
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 (23456) 20
Prefixes from unregistered ASNs in the Routing Table: 1343
Unregistered ASNs in the Routing Table: 275
Number of 32-bit ASNs allocated by the RIRs: 1159
Prefixes from 32-bit ASNs in the Routing Table: 1809
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 195
Number of addresses announced to Internet: 2385486592
Equivalent to 142 /8s, 47 /16s and 163 /24s
Percentage of available address space announced: 64.4
Percentage of allocated address space announced: 64.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.8
Total number of prefixes smaller than registry allocations: 140823
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82724
Total APNIC prefixes after maximum aggregation: 28196
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80381
Unique aggregates announced from the APNIC address blocks: 36029
APNIC Region origin ASes present in the Internet Routing Table: 4291
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1216
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: 593071360
Equivalent to 35 /8s, 89 /16s and 141 /24s
Percentage of available APNIC address space announced: 75.2
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: 136718
Total ARIN prefixes after maximum aggregation: 70064
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109491
Unique aggregates announced from the ARIN address blocks: 44877
ARIN Region origin ASes present in the Internet Routing Table: 14127
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5380
ARIN Region transit ASes present in the Internet Routing Table: 1389
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787538432
Equivalent to 46 /8s, 240 /16s and 226 /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: 82765
Total RIPE prefixes after maximum aggregation: 46821
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 76051
Unique aggregates announced from the RIPE address blocks: 49391
RIPE Region origin ASes present in the Internet Routing Table: 15380
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7787
RIPE Region transit ASes present in the Internet Routing Table: 2381
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 461604352
Equivalent to 27 /8s, 131 /16s and 134 /24s
Percentage of available RIPE address space announced: 74.4
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: 31508
Total LACNIC prefixes after maximum aggregation: 7267
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30527
Unique aggregates announced from the LACNIC address blocks: 16091
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.44
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 253
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81147392
Equivalent to 4 /8s, 214 /16s and 54 /24s
Percentage of available LACNIC address space announced: 53.7
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: 7490
Total AfriNIC prefixes after maximum aggregation: 1812
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 5868
Unique aggregates announced from the AfriNIC address blocks: 1827
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.65
AfriNIC Region origin ASes announcing only one prefix: 130
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: 21886976
Equivalent to 1 /8s, 77 /16s and 248 /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 1867 9493 590 Korea Telecom (KIX)
7545 1589 301 85 TPG Internet Pty Ltd
4755 1420 638 165 TATA Communications formerly
17974 1396 467 30 PT Telekomunikasi Indonesia
24560 1116 323 185 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 940 2032 269 CNCGROUP IP network China169
17488 938 161 102 Hathway IP Over Cable Interne
18101 934 117 141 Reliance Infocom Ltd Internet
9829 895 761 45 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 3684 3855 261 BellSouth.net Inc.
4323 2599 1125 404 tw telecom holdings, inc.
1785 1791 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Online LLC
20115 1527 1534 650 Charter Communications
6478 1523 296 110 AT&T Services, Inc.
18566 1514 324 178 Covad Communications Co.
7018 1379 6740 900 AT&T Services, Inc.
2386 1297 538 940 AT&T Data Communications Serv
11492 1285 236 70 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 469 267 15 Kazakhtelecom Data Network Ad
34984 466 98 146 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 442 133 23 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 401 1803 315 >>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 1383 257 166 Types of queries are: POCs, o
8151 1216 2685 357 Uninet S.A. de C.V.
28573 1206 961 82 Types of queries are: POCs, o
6503 1172 354 74 Axtel, S.A.B. de C.V.
7303 886 463 134 Telecom Argentina S.A.
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 542 310 15 Types of queries are: POCs, o
3816 514 224 96 Types of queries are: POCs, o
7738 479 922 30 Telecomunicacoes da Bahia S.A
14117 467 36 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 796 445 11 TEDATA
24863 767 147 37 LINKdotNET AS number
15475 436 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 220 78 10 RAYA Telecom - Egypt
6713 211 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 147 439 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 3684 3855 261 BellSouth.net Inc.
4323 2599 1125 404 tw telecom holdings, inc.
4766 1867 9493 590 Korea Telecom (KIX)
23456 1809 450 1011 32-bit ASN transition
1785 1791 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Online LLC
7545 1589 301 85 TPG Internet Pty Ltd
20115 1527 1534 650 Charter Communications
6478 1523 296 110 AT&T Services, Inc.
18566 1514 324 178 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 2599 2195 tw telecom holdings, inc.
1785 1791 1660 PaeTec Communications, Inc.
7545 1589 1504 TPG Internet Pty Ltd
19262 1786 1502 Verizon Online LLC
6478 1523 1413 AT&T Services, Inc.
17974 1396 1366 PT Telekomunikasi Indonesia
18566 1514 1336 Covad Communications Co.
4766 1867 1277 Korea Telecom (KIX)
4755 1420 1255 TATA Communications formerly
10620 1383 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
24.129.192.0/19 7922 Comcast Cable Communications,
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.29.0.0/19 12997 Kyrgyztelecom's Network
31.184.128.0/18 51074 Gostaresh Ertebatate Mabna Co
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 /8:20 /9:10 /10:26 /11:72 /12:217
/13:443 /14:765 /15:1368 /16:11492 /17:5634 /18:9297
/19:18997 /20:24475 /21:24951 /22:33242 /23:31662 /24:180563
/25:11 /26:17 /27:23 /28:156 /29:98 /30:44
/31:0 /32:113
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3684 BellSouth.net Inc.
18566 1491 1514 Covad Communications Co.
6478 1477 1523 AT&T Services, Inc.
4323 1398 2599 tw telecom holdings, inc.
10620 1274 1383 Types of queries are: POCs, o
11492 1242 1285 CABLE ONE, INC.
1785 1055 1791 PaeTec Communications, Inc.
7011 1055 1156 Frontier Communications of Am
23456 1025 1809 32-bit ASN transition
6503 954 1172 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)
----------------------------------------------
1:258 2:45 4:13 5:1 8:333 12:2028
13:1 14:393 15:15 16:3 17:8 20:9
23:1 24:1500 27:586 31:3 32:56 33:4
34:2 37:1 38:702 40:101 41:2286 44:3
46:642 47:4 49:156 50:101 52:13 55:2
56:2 57:28 58:758 59:475 60:382 61:1018
62:1028 63:1924 64:3821 65:2342 66:4299 67:1778
68:1068 69:2878 70:727 71:400 72:1998 73:1
74:2344 75:292 76:346 77:838 78:697 79:446
80:1070 81:796 82:525 83:467 84:633 85:1046
86:573 87:767 88:355 89:1579 90:160 91:3566
92:495 93:1061 94:1215 95:771 96:450 97:253
98:790 99:33 101:29 107:4 108:118 109:905
110:470 111:713 112:308 113:400 114:485 115:655
116:940 117:678 118:683 119:1026 120:245 121:671
122:1615 123:1051 124:1276 125:1256 128:214 129:150
130:166 131:557 132:101 133:20 134:205 135:49
136:212 137:143 138:294 139:116 140:463 141:203
142:356 143:380 144:487 145:51 146:431 147:198
148:622 149:273 150:160 151:230 152:295 153:180
154:2 155:375 156:174 157:315 158:127 159:375
160:312 161:199 162:277 163:145 164:486 165:341
166:501 167:409 168:722 169:154 170:751 171:69
172:2 173:1230 174:509 175:320 176:1 177:33
178:777 180:801 181:4 182:379 183:242 184:212
186:1030 187:834 188:907 189:1049 190:4582 192:5719
193:4790 194:3486 195:2953 196:1208 197:4 198:3499
199:3796 200:5590 201:1574 202:8055 203:8337 204:4010
205:2272 206:2544 207:2996 208:3901 209:3445 210:2596
211:1344 212:1944 213:1721 214:758 215:63 216:4834
217:1652 218:534 219:376 220:1195 221:460 222:311
223:101
End of report
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