Routing Table Report 08:00 +10GMT Fri 01 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 346844
Prefixes after maximum aggregation: 157752
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173921
Total ASes present in the Internet Routing Table: 36031
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31150
Origin ASes announcing only one prefix: 15010
Transit ASes present in the Internet Routing Table: 4881
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1919
Unregistered ASNs in the Routing Table: 335
Number of 32-bit ASNs allocated by the RIRs: 1250
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2080
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 221
Number of addresses announced to Internet: 2409526016
Equivalent to 143 /8s, 158 /16s and 115 /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: 90.0
Total number of prefixes smaller than registry allocations: 142111
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83563
Total APNIC prefixes after maximum aggregation: 28508
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 81304
Unique aggregates announced from the APNIC address blocks: 36646
APNIC Region origin ASes present in the Internet Routing Table: 4326
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 664
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 600536320
Equivalent to 35 /8s, 203 /16s and 117 /24s
Percentage of available APNIC address space announced: 76.2
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: 137399
Total ARIN prefixes after maximum aggregation: 70338
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110231
Unique aggregates announced from the ARIN address blocks: 44982
ARIN Region origin ASes present in the Internet Routing Table: 14214
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5436
ARIN Region transit ASes present in the Internet Routing Table: 1415
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 797456640
Equivalent to 47 /8s, 136 /16s and 57 /24s
Percentage of available ARIN address space announced: 63.4
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: 83470
Total RIPE prefixes after maximum aggregation: 47475
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76695
Unique aggregates announced from the RIPE address blocks: 50301
RIPE Region origin ASes present in the Internet Routing Table: 15451
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7781
RIPE Region transit ASes present in the Internet Routing Table: 2390
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 465620992
Equivalent to 27 /8s, 192 /16s and 208 /24s
Percentage of available RIPE address space announced: 75.0
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: 31963
Total LACNIC prefixes after maximum aggregation: 7277
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 31032
Unique aggregates announced from the LACNIC address blocks: 16282
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.75
LACNIC Region origin ASes announcing only one prefix: 439
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 region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81563136
Equivalent to 4 /8s, 220 /16s and 142 /24s
Percentage of available LACNIC address space announced: 54.0
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: 7640
Total AfriNIC prefixes after maximum aggregation: 1815
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6010
Unique aggregates announced from the AfriNIC address blocks: 1854
AfriNIC Region origin ASes present in the Internet Routing Table: 439
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22631424
Equivalent to 1 /8s, 89 /16s and 84 /24s
Percentage of available AfriNIC address space announced: 33.7
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 1869 9506 601 Korea Telecom (KIX)
7545 1544 301 84 TPG Internet Pty Ltd
17974 1447 472 34 PT Telekomunikasi Indonesia
4755 1434 638 168 TATA Communications formerly
24560 1135 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1006 869 51 National Internet Backbone
4808 951 2034 278 CNCGROUP IP network China169
17488 938 162 98 Hathway IP Over Cable Interne
18101 935 116 139 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
6389 3670 3838 258 BellSouth.net Inc.
4323 2562 1107 399 tw telecom holdings, inc.
1785 1790 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1590 304 43 AT&T Services, Inc.
20115 1528 1539 648 Charter Communications
19262 1489 4935 303 Verizon Online LLC
7018 1372 6963 899 AT&T Services, Inc.
11492 1320 240 15 CABLE ONE, INC.
22773 1290 2865 84 Cox Communications 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 541 326 30 Goldenlines main autonomous s
6830 512 1780 317 UPC Broadband
34984 474 96 199 BILISIM TELEKOM
3292 455 2013 392 TDC Data Networks
8866 444 133 25 Bulgarian Telecommunication C
9198 424 267 15 Kazakhtelecom Data Network Ad
20940 417 98 324 Akamai Technologies European
3320 412 7604 358 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 397 1803 311 >>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 1402 261 150 Types of queries are: POCs, o
28573 1243 971 84 Types of queries are: POCs, o
8151 1226 2661 363 Uninet S.A. de C.V.
6503 1108 354 73 Axtel, S.A.B. de C.V.
7303 901 464 136 Telecom Argentina S.A.
14420 642 52 91 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 516 225 97 Types of queries are: POCs, o
11172 485 99 80 Alestra, S. de R.L. de C.V.
14117 480 38 44 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 837 445 11 TEDATA
24863 770 147 36 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
6713 231 215 12 Itissalat Al-MAGHRIB
33776 230 13 5 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 147 441 86 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 3670 3838 258 BellSouth.net Inc.
4323 2562 1107 399 tw telecom holdings, inc.
23456 2080 500 1120 32-bit ASN transition
4766 1869 9506 601 Korea Telecom (KIX)
1785 1790 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1590 304 43 AT&T Services, Inc.
7545 1544 301 84 TPG Internet Pty Ltd
20115 1528 1539 648 Charter Communications
19262 1489 4935 303 Verizon Online LLC
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 2562 2163 tw telecom holdings, inc.
1785 1790 1659 PaeTec Communications, Inc.
6478 1590 1547 AT&T Services, Inc.
7545 1544 1460 TPG Internet Pty Ltd
17974 1447 1413 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
11492 1320 1305 CABLE ONE, INC.
4766 1869 1268 Korea Telecom (KIX)
4755 1434 1266 TATA Communications formerly
10620 1402 1252 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 *
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.
21861 UNALLOCATED 12.37.59.0/24 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 65535 Internet Assigned Numbers Aut
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
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
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
31.170.48.0/20 44208 Farahoosh Dena
31.170.64.0/19 8887 TESATEL, s.r.o.
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 /9:11 /10:26 /11:74 /12:218
/13:447 /14:765 /15:1373 /16:11568 /17:5691 /18:9394
/19:19171 /20:24862 /21:25224 /22:33487 /23:31930 /24:182113
/25:11 /26:17 /27:24 /28:158 /29:97 /30:50
/31:0 /32:113
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2263 3670 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1544 1590 AT&T Services, Inc.
4323 1376 2562 tw telecom holdings, inc.
10620 1292 1402 Types of queries are: POCs, o
11492 1269 1320 CABLE ONE, INC.
23456 1098 2080 32-bit ASN transition
7011 1064 1164 Frontier Communications of Am
1785 1056 1790 PaeTec Communications, Inc.
6503 892 1108 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)
----------------------------------------------
1:288 2:54 4:14 5:1 8:347 12:2013
13:1 14:413 15:15 16:3 17:8 20:9
23:5 24:1591 27:707 31:53 32:56 33:3
34:2 37:1 38:744 39:1 40:101 41:2372
44:3 46:782 47:4 49:140 50:136 52:13
55:5 56:2 57:27 58:775 59:478 60:385
61:1041 62:1007 63:1908 64:3859 65:2339 66:4339
67:1809 68:1078 69:2916 70:696 71:343 72:1893
73:1 74:2326 75:285 76:336 77:851 78:695
79:451 80:1080 81:819 82:510 83:466 84:646
85:1032 86:549 87:770 88:342 89:1564 90:175
91:3667 92:510 93:1044 94:1234 95:782 96:453
97:253 98:813 99:35 101:41 106:1 107:4
108:80 109:926 110:518 111:673 112:321 113:379
114:497 115:667 116:919 117:672 118:757 119:1123
120:285 121:686 122:1605 123:1041 124:1263 125:1250
128:213 129:168 130:167 131:563 132:101 133:20
134:208 135:49 136:210 137:139 138:300 139:110
140:462 141:173 142:362 143:388 144:478 145:52
146:438 147:197 148:617 149:260 150:158 151:187
152:296 153:180 154:2 155:390 156:184 157:318
158:131 159:374 160:316 161:200 162:277 163:155
164:493 165:347 166:502 167:414 168:717 169:153
170:778 171:74 172:2 173:1257 174:531 175:340
177:78 178:765 180:791 181:4 182:401 183:201
184:236 185:1 186:1112 187:904 188:923 189:1039
190:4780 192:5718 193:4792 194:3480 195:2941 196:1211
197:15 198:3532 199:3847 200:5534 201:1481 202:8144
203:8346 204:4044 205:2297 206:2545 207:2951 208:3891
209:3473 210:2648 211:1355 212:1987 213:1708 214:765
215:66 216:4859 217:1642 218:547 219:371 220:1189
221:462 222:308 223:101
End of report
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