Routing Table Report 08:00 +10GMT Mon 21 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 345392
Prefixes after maximum aggregation: 157024
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173035
Total ASes present in the Internet Routing Table: 35935
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31112
Origin ASes announcing only one prefix: 14979
Transit ASes present in the Internet Routing Table: 4823
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: 25
Max AS path prepend of ASN (42805) 21
Prefixes from unregistered ASNs in the Routing Table: 1811
Unregistered ASNs in the Routing Table: 315
Number of 32-bit ASNs allocated by the RIRs: 1213
Prefixes from 32-bit ASNs in the Routing Table: 1944
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 191
Number of addresses announced to Internet: 2405469696
Equivalent to 143 /8s, 96 /16s and 142 /24s
Percentage of available address space announced: 64.9
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.5
Total number of prefixes smaller than registry allocations: 141461
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83367
Total APNIC prefixes after maximum aggregation: 28329
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81068
Unique aggregates announced from the APNIC address blocks: 36364
APNIC Region origin ASes present in the Internet Routing Table: 4300
APNIC Prefixes per ASN: 18.85
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 646
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 598643456
Equivalent to 35 /8s, 174 /16s and 147 /24s
Percentage of available APNIC address space announced: 75.9
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: 136998
Total ARIN prefixes after maximum aggregation: 70271
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109791
Unique aggregates announced from the ARIN address blocks: 45077
ARIN Region origin ASes present in the Internet Routing Table: 14188
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5414
ARIN Region transit ASes present in the Internet Routing Table: 1402
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 797005312
Equivalent to 47 /8s, 129 /16s and 86 /24s
Percentage of available ARIN address space announced: 63.3
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: 83151
Total RIPE prefixes after maximum aggregation: 47117
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76500
Unique aggregates announced from the RIPE address blocks: 49887
RIPE Region origin ASes present in the Internet Routing Table: 15420
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7777
RIPE Region transit ASes present in the Internet Routing Table: 2382
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 464837632
Equivalent to 27 /8s, 180 /16s and 220 /24s
Percentage of available RIPE address space announced: 74.9
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: 31813
Total LACNIC prefixes after maximum aggregation: 7279
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 30860
Unique aggregates announced from the LACNIC address blocks: 16164
LACNIC Region origin ASes present in the Internet Routing Table: 1429
LACNIC Prefixes per ASN: 21.60
LACNIC Region origin ASes announcing only one prefix: 443
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: 81447168
Equivalent to 4 /8s, 218 /16s and 201 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7454
Total AfriNIC prefixes after maximum aggregation: 1801
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5853
Unique aggregates announced from the AfriNIC address blocks: 1793
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22131200
Equivalent to 1 /8s, 81 /16s and 178 /24s
Percentage of available AfriNIC address space announced: 33.0
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 9500 593 Korea Telecom (KIX)
7545 1553 301 84 TPG Internet Pty Ltd
4755 1476 653 160 TATA Communications formerly
17974 1432 472 34 PT Telekomunikasi Indonesia
24560 1134 324 187 Bharti Airtel Ltd., Telemedia
9583 1047 77 493 Sify Limited
9829 1004 868 53 National Internet Backbone
18101 936 117 140 Reliance Infocom Ltd Internet
17488 935 162 96 Hathway IP Over Cable Interne
4808 932 2031 270 CNCGROUP IP network China169
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 3674 3838 258 BellSouth.net Inc.
4323 2568 1109 403 tw telecom holdings, inc.
1785 1795 681 131 PaeTec Communications, Inc.
18566 1598 330 198 Covad Communications Co.
6478 1553 300 65 AT&T Services, Inc.
20115 1527 1536 645 Charter Communications
19262 1488 4939 299 Verizon Online LLC
7018 1382 6868 902 AT&T Services, Inc.
11492 1315 236 64 CABLE ONE, INC.
22773 1286 2865 80 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 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
9198 472 267 15 Kazakhtelecom Data Network Ad
34984 455 95 203 BILISIM TELEKOM
3292 453 2013 391 TDC Data Networks
8866 443 133 24 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 396 1803 310 >>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 1394 260 159 Types of queries are: POCs, o
28573 1228 965 82 Types of queries are: POCs, o
8151 1226 2679 369 Uninet S.A. de C.V.
6503 1174 354 74 Axtel, S.A.B. de C.V.
7303 899 464 135 Telecom Argentina S.A.
14420 636 52 91 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 516 225 96 Types of queries are: POCs, o
13489 491 213 106 EPM Telecomunicaciones S.A. E
11172 485 99 81 Alestra, S. de R.L. de C.V.
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 787 445 11 TEDATA
24863 770 147 37 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 297 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 207 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 148 441 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 3674 3838 258 BellSouth.net Inc.
4323 2568 1109 403 tw telecom holdings, inc.
23456 1944 476 1065 32-bit ASN transition
4766 1869 9500 593 Korea Telecom (KIX)
1785 1795 681 131 PaeTec Communications, Inc.
18566 1598 330 198 Covad Communications Co.
6478 1553 300 65 AT&T Services, Inc.
7545 1553 301 84 TPG Internet Pty Ltd
20115 1527 1536 645 Charter Communications
19262 1488 4939 299 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 2568 2165 tw telecom holdings, inc.
1785 1795 1664 PaeTec Communications, Inc.
6478 1553 1488 AT&T Services, Inc.
7545 1553 1469 TPG Internet Pty Ltd
18566 1598 1400 Covad Communications Co.
17974 1432 1398 PT Telekomunikasi Indonesia
4755 1476 1316 TATA Communications formerly
4766 1869 1276 Korea Telecom (KIX)
11492 1315 1251 CABLE ONE, INC.
10620 1394 1235 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
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.
26973 UNALLOCATED 12.39.152.0/24 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
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 DataBank Holdings, Ltd.
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
/13:446 /14:765 /15:1369 /16:11530 /17:5653 /18:9371
/19:19107 /20:24693 /21:25043 /22:33450 /23:31824 /24:181340
/25:11 /26:17 /27:23 /28:154 /29:95 /30:49
/31:0 /32:103
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3674 BellSouth.net Inc.
18566 1577 1598 Covad Communications Co.
6478 1507 1553 AT&T Services, Inc.
4323 1378 2568 tw telecom holdings, inc.
10620 1285 1394 Types of queries are: POCs, o
11492 1272 1315 CABLE ONE, INC.
23456 1072 1944 32-bit ASN transition
7011 1062 1162 Frontier Communications of Am
1785 1057 1795 PaeTec Communications, Inc.
6503 953 1174 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)
----------------------------------------------
1:272 2:63 4:14 5:1 8:343 12:2005
13:1 14:398 15:15 16:3 17:8 20:9
23:3 24:1557 27:679 31:3 32:56 33:3
34:2 37:1 38:710 39:1 40:101 41:2259
44:3 46:734 47:4 49:158 50:109 52:13
55:3 56:2 57:29 58:762 59:489 60:385
61:1047 62:1001 63:1915 64:3842 65:2349 66:4359
67:1773 68:1077 69:2887 70:699 71:359 72:1894
73:1 74:2322 75:284 76:345 77:843 78:700
79:457 80:1089 81:819 82:519 83:468 84:645
85:1034 86:518 87:767 88:353 89:1558 90:174
91:3647 92:504 93:1044 94:1230 95:780 96:443
97:251 98:798 99:34 101:45 106:1 107:4
108:72 109:912 110:518 111:693 112:308 113:376
114:485 115:705 116:937 117:654 118:711 119:1075
120:254 121:742 122:1606 123:1037 124:1285 125:1249
128:213 129:165 130:166 131:557 132:99 133:20
134:208 135:49 136:209 137:143 138:299 139:111
140:462 141:173 142:360 143:386 144:475 145:52
146:432 147:192 148:602 149:264 150:153 151:187
152:296 153:180 154:2 155:387 156:181 157:318
158:131 159:365 160:313 161:199 162:276 163:154
164:490 165:349 166:498 167:412 168:716 169:155
170:778 171:69 172:2 173:1253 174:521 175:333
177:44 178:809 180:776 181:4 182:389 183:241
184:227 185:1 186:1060 187:874 188:912 189:1030
190:4732 192:5718 193:4795 194:3491 195:2946 196:1189
197:15 198:3492 199:3840 200:5500 201:1573 202:8156
203:8349 204:4036 205:2281 206:2553 207:2950 208:3900
209:3453 210:2644 211:1344 212:1960 213:1709 214:752
215:66 216:4846 217:1649 218:546 219:379 220:1192
221:453 222:316 223:97
End of report
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