Routing Table Report 08:00 +10GMT Mon 14 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 345298
Prefixes after maximum aggregation: 156895
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 172831
Total ASes present in the Internet Routing Table: 35897
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31052
Origin ASes announcing only one prefix: 14971
Transit ASes present in the Internet Routing Table: 4845
Transit-only ASes present in the Internet Routing Table: 115
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: 1375
Unregistered ASNs in the Routing Table: 302
Number of 32-bit ASNs allocated by the RIRs: 1199
Prefixes from 32-bit ASNs in the Routing Table: 1842
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 242
Number of addresses announced to Internet: 2484729856
Equivalent to 148 /8s, 25 /16s and 248 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 141732
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83065
Total APNIC prefixes after maximum aggregation: 28296
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80682
Unique aggregates announced from the APNIC address blocks: 36176
APNIC Region origin ASes present in the Internet Routing Table: 4285
APNIC Prefixes per ASN: 18.83
APNIC Region origin ASes announcing only one prefix: 1208
APNIC Region transit ASes present in the Internet Routing Table: 651
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 594873344
Equivalent to 35 /8s, 117 /16s and 12 /24s
Percentage of available APNIC address space announced: 75.4
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: 137414
Total ARIN prefixes after maximum aggregation: 70199
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110165
Unique aggregates announced from the ARIN address blocks: 44958
ARIN Region origin ASes present in the Internet Routing Table: 14164
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5403
ARIN Region transit ASes present in the Internet Routing Table: 1393
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796380160
Equivalent to 47 /8s, 119 /16s and 204 /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: 83187
Total RIPE prefixes after maximum aggregation: 47135
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76487
Unique aggregates announced from the RIPE address blocks: 49918
RIPE Region origin ASes present in the Internet Routing Table: 15416
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7787
RIPE Region transit ASes present in the Internet Routing Table: 2400
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 481271552
Equivalent to 28 /8s, 175 /16s and 159 /24s
Percentage of available RIPE address space announced: 77.5
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: 31634
Total LACNIC prefixes after maximum aggregation: 7259
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30678
Unique aggregates announced from the LACNIC address blocks: 16130
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.54
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: 81307904
Equivalent to 4 /8s, 216 /16s and 169 /24s
Percentage of available LACNIC address space announced: 53.8
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: 7505
Total AfriNIC prefixes after maximum aggregation: 1822
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5892
Unique aggregates announced from the AfriNIC address blocks: 1851
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.51
AfriNIC Region origin ASes announcing only one prefix: 131
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: 22067968
Equivalent to 1 /8s, 80 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 32.9
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 1859 9500 589 Korea Telecom (KIX)
7545 1575 301 84 TPG Internet Pty Ltd
4755 1466 653 156 TATA Communications formerly
17974 1398 460 30 PT Telekomunikasi Indonesia
24560 1122 324 186 Bharti Airtel Ltd., Telemedia
9583 1047 76 487 Sify Limited
9829 1005 868 53 National Internet Backbone
17488 943 162 96 Hathway IP Over Cable Interne
4808 938 2032 271 CNCGROUP IP network China169
18101 935 117 141 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 3678 3839 260 BellSouth.net Inc.
4323 2581 1109 403 tw telecom holdings, inc.
19262 1830 4953 282 Verizon Online LLC
1785 1794 681 131 PaeTec Communications, Inc.
6478 1545 299 72 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1520 325 178 Covad Communications Co.
7018 1382 6868 902 AT&T Services, Inc.
11492 1313 237 64 CABLE ONE, INC.
2386 1293 537 932 AT&T Data Communications Serv
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 470 267 15 Kazakhtelecom Data Network Ad
3292 450 1996 389 TDC Data Networks
34984 450 95 201 BILISIM TELEKOM
8866 444 133 24 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 407 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 400 577 6 France Telecom Espana SA
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 1384 258 163 Types of queries are: POCs, o
8151 1223 2681 361 Uninet S.A. de C.V.
28573 1220 963 83 Types of queries are: POCs, o
6503 1172 354 74 Axtel, S.A.B. de C.V.
7303 897 463 134 Telecom Argentina S.A.
14420 634 51 88 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 513 224 99 Types of queries are: POCs, o
11172 487 99 83 Alestra, S. de R.L. de C.V.
7738 479 922 30 Telecomunicacoes da Bahia 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 791 445 11 TEDATA
24863 770 147 37 LINKdotNET AS number
15475 420 90 8 Nile Online
36992 299 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 139 422 85 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 3678 3839 260 BellSouth.net Inc.
4323 2581 1109 403 tw telecom holdings, inc.
4766 1859 9500 589 Korea Telecom (KIX)
23456 1842 452 1042 32-bit ASN transition
19262 1830 4953 282 Verizon Online LLC
1785 1794 681 131 PaeTec Communications, Inc.
7545 1575 301 84 TPG Internet Pty Ltd
6478 1545 299 72 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1520 325 178 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 2581 2178 tw telecom holdings, inc.
1785 1794 1663 PaeTec Communications, Inc.
19262 1830 1548 Verizon Online LLC
7545 1575 1491 TPG Internet Pty Ltd
6478 1545 1473 AT&T Services, Inc.
17974 1398 1368 PT Telekomunikasi Indonesia
18566 1520 1342 Covad Communications Co.
4755 1466 1310 TATA Communications formerly
4766 1859 1270 Korea Telecom (KIX)
11492 1313 1249 CABLE ONE, INC.
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 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
1.5.0.0/16 38639 for assignment to JPNIC membe
1.6.0.0/15 38639 for assignment to JPNIC membe
1.8.0.0/16 38639 for assignment to JPNIC membe
1.20.0.0/16 38639 for assignment to JPNIC membe
1.32.0.0/16 38639 for assignment to JPNIC membe
1.37.0.0/16 38639 for assignment to JPNIC membe
1.187.0.0/16 38639 for assignment to JPNIC membe
14.0.0.0/24 38639 for assignment to JPNIC membe
14.0.1.0/24 38639 for assignment to JPNIC membe
14.0.2.0/23 38639 for assignment to JPNIC membe
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 /8:25 /9:11 /10:26 /11:73 /12:217
/13:445 /14:766 /15:1369 /16:11533 /17:5637 /18:9312
/19:19100 /20:24654 /21:25157 /22:33390 /23:31769 /24:181377
/25:11 /26:17 /27:23 /28:149 /29:91 /30:47
/31:0 /32:99
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3678 BellSouth.net Inc.
6478 1499 1545 AT&T Services, Inc.
18566 1499 1520 Covad Communications Co.
4323 1389 2581 tw telecom holdings, inc.
10620 1275 1384 Types of queries are: POCs, o
11492 1270 1313 CABLE ONE, INC.
7011 1064 1164 Frontier Communications of Am
1785 1055 1794 PaeTec Communications, Inc.
23456 1041 1842 32-bit ASN transition
6503 950 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)
----------------------------------------------
1:271 2:62 4:14 5:1 8:341 12:2024
13:1 14:403 15:15 16:3 17:8 20:9
23:3 24:1514 27:606 31:2 32:56 33:4
34:2 36:2 37:1 38:709 39:1 40:101
41:2311 42:13 44:3 46:709 47:4 49:160
50:201 52:13 55:2 56:2 57:29 58:755
59:491 60:384 61:1036 62:995 63:1917 64:3836
65:2350 66:4331 67:1774 68:1073 69:2891 70:702
71:399 72:2009 73:1 74:2350 75:283 76:343
77:843 78:697 79:448 80:1098 81:818 82:517
83:464 84:643 85:1045 86:569 87:764 88:348
89:1582 90:175 91:3619 92:487 93:1043 94:1219
95:780 96:466 97:251 98:818 99:34 101:57
106:1 107:4 108:129 109:899 110:472 111:707
112:309 113:376 114:476 115:703 116:941 117:654
118:702 119:1027 120:255 121:729 122:1609 123:1033
124:1283 125:1263 128:213 129:162 130:165 131:556
132:97 133:20 134:209 135:49 136:209 137:142
138:298 139:106 140:456 141:203 142:360 143:374
144:484 145:52 146:403 147:203 148:620 149:262
150:151 151:229 152:296 153:180 154:2 155:369
156:176 157:315 158:131 159:366 160:312 161:202
162:276 163:150 164:487 165:348 166:498 167:410
168:723 169:155 170:752 171:69 172:2 173:1264
174:531 175:323 177:35 178:803 180:802 181:4
182:373 183:242 184:233 186:1041 187:835 188:929
189:1032 190:4686 192:5704 193:4786 194:3486 195:2946
196:1208 197:4 198:3500 199:3835 200:5531 201:1573
202:8074 203:8361 204:4031 205:2283 206:2551 207:2976
208:3911 209:3433 210:2640 211:1342 212:1957 213:1718
214:759 215:63 216:4821 217:1654 218:545 219:378
220:1191 221:453 222:314 223:97
End of report
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