Routing Table Report 08:00 +10GMT Sat 26 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 343077
Prefixes after maximum aggregation: 156132
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171744
Total ASes present in the Internet Routing Table: 35784
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 30958
Origin ASes announcing only one prefix: 14967
Transit ASes present in the Internet Routing Table: 4826
Transit-only ASes present in the Internet Routing Table: 108
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: 1329
Unregistered ASNs in the Routing Table: 267
Number of 32-bit ASNs allocated by the RIRs: 1141
Prefixes from 32-bit ASNs in the Routing Table: 1782
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 200
Number of addresses announced to Internet: 2383608320
Equivalent to 142 /8s, 18 /16s and 250 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
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: 140459
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82527
Total APNIC prefixes after maximum aggregation: 28160
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80180
Unique aggregates announced from the APNIC address blocks: 35884
APNIC Region origin ASes present in the Internet Routing Table: 4285
APNIC Prefixes per ASN: 18.71
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 658
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 591636224
Equivalent to 35 /8s, 67 /16s and 167 /24s
Percentage of available APNIC address space announced: 75.0
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: 136656
Total ARIN prefixes after maximum aggregation: 70036
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109458
Unique aggregates announced from the ARIN address blocks: 44991
ARIN Region origin ASes present in the Internet Routing Table: 14124
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5374
ARIN Region transit ASes present in the Internet Routing Table: 1387
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787473152
Equivalent to 46 /8s, 239 /16s and 227 /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: 82671
Total RIPE prefixes after maximum aggregation: 46731
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75939
Unique aggregates announced from the RIPE address blocks: 49340
RIPE Region origin ASes present in the Internet Routing Table: 15351
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7795
RIPE Region transit ASes present in the Internet Routing Table: 2379
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 461120512
Equivalent to 27 /8s, 124 /16s and 36 /24s
Percentage of available RIPE address space announced: 74.3
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: 31321
Total LACNIC prefixes after maximum aggregation: 7270
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30305
Unique aggregates announced from the LACNIC address blocks: 15923
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.27
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 254
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80942336
Equivalent to 4 /8s, 211 /16s and 21 /24s
Percentage of available LACNIC address space announced: 53.6
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: 7437
Total AfriNIC prefixes after maximum aggregation: 1813
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 5844
Unique aggregates announced from the AfriNIC address blocks: 1829
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21883648
Equivalent to 1 /8s, 77 /16s and 235 /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 1865 9493 587 Korea Telecom (KIX)
7545 1597 302 87 TPG Internet Pty Ltd
4755 1418 637 165 TATA Communications formerly
17974 1414 467 30 PT Telekomunikasi Indonesia
24560 1115 323 184 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 943 2034 271 CNCGROUP IP network China169
17488 938 161 102 Hathway IP Over Cable Interne
18101 932 117 139 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 3691 3855 262 BellSouth.net Inc.
4323 2603 1125 404 tw telecom holdings, inc.
1785 1789 697 131 PaeTec Communications, Inc.
19262 1787 4954 285 Verizon Online LLC
20115 1528 1535 647 Charter Communications
6478 1522 296 84 AT&T Services, Inc.
18566 1444 320 155 Covad Communications Co.
7018 1372 6723 897 AT&T Services, Inc.
2386 1298 554 934 AT&T Data Communications Serv
11492 1283 236 72 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 470 267 15 Kazakhtelecom Data Network Ad
34984 465 98 145 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 442 133 23 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 400 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 1383 257 166 Types of queries are: POCs, o
28573 1216 961 82 Types of queries are: POCs, o
8151 1213 2667 357 Uninet S.A. de C.V.
6503 1159 354 74 Axtel, S.A.B. de C.V.
7303 883 463 132 Telecom Argentina S.A.
14420 641 57 94 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 509 221 100 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
8452 769 445 11 TEDATA
24863 689 147 37 LINKdotNET AS number
15475 474 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
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 3691 3855 262 BellSouth.net Inc.
4323 2603 1125 404 tw telecom holdings, inc.
4766 1865 9493 587 Korea Telecom (KIX)
1785 1789 697 131 PaeTec Communications, Inc.
19262 1787 4954 285 Verizon Online LLC
23456 1782 446 1008 32-bit ASN transition
7545 1597 302 87 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1522 296 84 AT&T Services, Inc.
18566 1444 320 155 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 2603 2199 tw telecom holdings, inc.
1785 1789 1658 PaeTec Communications, Inc.
7545 1597 1510 TPG Internet Pty Ltd
19262 1787 1502 Verizon Online LLC
6478 1522 1438 AT&T Services, Inc.
17974 1414 1384 PT Telekomunikasi Indonesia
18566 1444 1289 Covad Communications Co.
4766 1865 1278 Korea Telecom (KIX)
4755 1418 1253 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
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,
31.43.64.0/19 30886 PP KOM i TEX
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /12:216
/13:443 /14:764 /15:1371 /16:11496 /17:5637 /18:9314
/19:18988 /20:24459 /21:24900 /22:33187 /23:31545 /24:180165
/25:11 /26:17 /27:25 /28:157 /29:98 /30:45
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2277 3691 BellSouth.net Inc.
6478 1476 1522 AT&T Services, Inc.
18566 1422 1444 Covad Communications Co.
4323 1401 2603 tw telecom holdings, inc.
10620 1274 1383 Types of queries are: POCs, o
11492 1240 1283 CABLE ONE, INC.
7011 1056 1157 Frontier Communications of Am
1785 1054 1789 PaeTec Communications, Inc.
23456 1016 1782 32-bit ASN transition
6503 942 1159 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)
----------------------------------------------
1:249 2:40 4:13 5:1 8:334 12:2028
13:1 14:387 15:15 16:3 17:8 20:9
23:1 24:1491 27:591 32:56 33:4 34:2
37:1 38:703 40:101 41:2305 44:3 46:643
47:4 49:152 50:95 52:12 55:2 56:2
57:28 58:762 59:473 60:381 61:1012 62:1041
63:1934 64:3821 65:2356 66:4245 67:1778 68:1029
69:2892 70:729 71:399 72:2010 73:1 74:2346
75:292 76:347 77:854 78:696 79:447 80:1063
81:811 82:525 83:475 84:635 85:1047 86:576
87:754 88:355 89:1578 90:157 91:3544 92:495
93:1049 94:1205 95:773 96:450 97:250 98:796
99:33 101:31 107:4 108:88 109:929 110:482
111:714 112:306 113:368 114:478 115:645 116:928
117:679 118:678 119:1011 120:242 121:674 122:1614
123:1051 124:1277 125:1254 128:214 129:150 130:167
131:565 132:101 133:20 134:213 135:49 136:210
137:143 138:294 139:115 140:467 141:203 142:338
143:380 144:482 145:51 146:435 147:196 148:615
149:272 150:160 151:230 152:295 153:179 154:2
155:377 156:173 157:315 158:128 159:374 160:314
161:199 162:275 163:146 164:486 165:337 166:502
167:409 168:729 169:150 170:750 171:69 172:2
173:1224 174:512 175:317 176:1 177:23 178:756
180:807 181:2 182:351 183:243 184:213 186:1019
187:824 188:897 189:1050 190:4405 192:5757 193:4788
194:3487 195:2954 196:1198 197:3 198:3507 199:3802
200:5570 201:1573 202:8066 203:8339 204:4003 205:2279
206:2539 207:2997 208:3918 209:3458 210:2596 211:1340
212:1947 213:1739 214:764 215:63 216:4825 217:1639
218:535 219:363 220:1193 221:436 222:309 223:100
End of report
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