Routing Table Report 08:00 +10GMT Thu 10 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 344817
Prefixes after maximum aggregation: 156735
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 172478
Total ASes present in the Internet Routing Table: 35876
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31034
Origin ASes announcing only one prefix: 14942
Transit ASes present in the Internet Routing Table: 4842
Transit-only ASes present in the Internet Routing Table: 113
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: 1356
Unregistered ASNs in the Routing Table: 291
Number of 32-bit ASNs allocated by the RIRs: 1185
Prefixes from 32-bit ASNs in the Routing Table: 1830
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 252
Number of addresses announced to Internet: 2485447680
Equivalent to 148 /8s, 36 /16s and 236 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 141411
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82943
Total APNIC prefixes after maximum aggregation: 28324
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80557
Unique aggregates announced from the APNIC address blocks: 36218
APNIC Region origin ASes present in the Internet Routing Table: 4295
APNIC Prefixes per ASN: 18.76
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 655
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 595194112
Equivalent to 35 /8s, 121 /16s and 241 /24s
Percentage of available APNIC address space announced: 75.5
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: 137320
Total ARIN prefixes after maximum aggregation: 70184
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110030
Unique aggregates announced from the ARIN address blocks: 44982
ARIN Region origin ASes present in the Internet Routing Table: 14155
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1395
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796315136
Equivalent to 47 /8s, 118 /16s and 206 /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: 83075
Total RIPE prefixes after maximum aggregation: 46956
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 76347
Unique aggregates announced from the RIPE address blocks: 49476
RIPE Region origin ASes present in the Internet Routing Table: 15398
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7776
RIPE Region transit ASes present in the Internet Routing Table: 2389
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 481015040
Equivalent to 28 /8s, 171 /16s and 181 /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: 31474
Total LACNIC prefixes after maximum aggregation: 7280
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30488
Unique aggregates announced from the LACNIC address blocks: 16123
LACNIC Region origin ASes present in the Internet Routing Table: 1426
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 438
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: 19
Number of LACNIC addresses announced to Internet: 81251584
Equivalent to 4 /8s, 215 /16s and 205 /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: 7499
Total AfriNIC prefixes after maximum aggregation: 1821
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5877
Unique aggregates announced from the AfriNIC address blocks: 1821
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.60
AfriNIC Region origin ASes announcing only one prefix: 126
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 22018048
Equivalent to 1 /8s, 79 /16s and 248 /24s
Percentage of available AfriNIC address space announced: 32.8
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 1863 9500 589 Korea Telecom (KIX)
7545 1577 301 84 TPG Internet Pty Ltd
4755 1425 638 166 TATA Communications formerly
17974 1407 459 29 PT Telekomunikasi Indonesia
24560 1130 324 186 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
9829 998 865 55 National Internet Backbone
17488 941 162 103 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 3682 3839 260 BellSouth.net Inc.
4323 2580 1125 404 tw telecom holdings, inc.
19262 1829 4953 282 Verizon Online LLC
1785 1793 681 131 PaeTec Communications, Inc.
6478 1532 298 91 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1521 325 178 Covad Communications Co.
7018 1378 6868 900 AT&T Services, Inc.
2386 1296 538 936 AT&T Data Communications Serv
11492 1293 236 69 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 513 1780 317 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 465 98 145 BILISIM TELEKOM
3292 450 1996 389 TDC Data Networks
8866 443 133 23 Bulgarian Telecommunication C
20940 412 97 316 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 404 7604 352 Deutsche Telekom AG
702 398 1803 312 >>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 1384 258 163 Types of queries are: POCs, o
28573 1225 963 83 Types of queries are: POCs, o
8151 1224 2681 361 Uninet S.A. de C.V.
6503 1171 354 74 Axtel, S.A.B. de C.V.
7303 887 463 134 Telecom Argentina S.A.
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 517 225 96 Types of queries are: POCs, o
7738 479 922 30 Telecomunicacoes da Bahia S.A
14117 469 37 38 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 781 445 11 TEDATA
24863 766 147 37 LINKdotNET AS number
15475 440 90 8 Nile Online
36992 300 271 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 140 422 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 3682 3839 260 BellSouth.net Inc.
4323 2580 1125 404 tw telecom holdings, inc.
4766 1863 9500 589 Korea Telecom (KIX)
23456 1830 470 1035 32-bit ASN transition
19262 1829 4953 282 Verizon Online LLC
1785 1793 681 131 PaeTec Communications, Inc.
7545 1577 301 84 TPG Internet Pty Ltd
6478 1532 298 91 AT&T Services, Inc.
20115 1526 1534 650 Charter Communications
18566 1521 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 2580 2176 tw telecom holdings, inc.
1785 1793 1662 PaeTec Communications, Inc.
19262 1829 1547 Verizon Online LLC
7545 1577 1493 TPG Internet Pty Ltd
6478 1532 1441 AT&T Services, Inc.
17974 1407 1378 PT Telekomunikasi Indonesia
18566 1521 1343 Covad Communications Co.
4766 1863 1274 Korea Telecom (KIX)
4755 1425 1259 TATA Communications formerly
11492 1293 1224 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 /14:767 /15:1371 /16:11542 /17:5624 /18:9314
/19:19094 /20:24621 /21:25102 /22:33397 /23:31769 /24:180958
/25:11 /26:17 /27:24 /28:155 /29:93 /30:50
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3682 BellSouth.net Inc.
18566 1499 1521 Covad Communications Co.
6478 1486 1532 AT&T Services, Inc.
4323 1388 2580 tw telecom holdings, inc.
10620 1275 1384 Types of queries are: POCs, o
11492 1250 1293 CABLE ONE, INC.
7011 1058 1159 Frontier Communications of Am
1785 1055 1793 PaeTec Communications, Inc.
23456 1031 1830 32-bit ASN transition
6503 950 1171 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)
----------------------------------------------
1:257 2:49 4:14 5:1 8:340 12:2026
13:1 14:407 15:15 16:3 17:8 20:9
23:3 24:1506 27:601 31:5 32:56 33:4
34:2 36:2 37:1 38:741 39:1 40:101
41:2276 42:13 44:3 46:708 47:4 49:164
50:194 52:13 55:2 56:2 57:29 58:757
59:475 60:384 61:1016 62:1018 63:1920 64:3838
65:2344 66:4332 67:1774 68:1063 69:2882 70:699
71:399 72:2005 73:1 74:2342 75:283 76:341
77:840 78:700 79:447 80:1085 81:791 82:521
83:466 84:648 85:1044 86:571 87:764 88:351
89:1565 90:171 91:3594 92:496 93:1056 94:1211
95:776 96:466 97:250 98:797 99:34 101:51
106:1 107:4 108:129 109:907 110:475 111:712
112:309 113:390 114:474 115:662 116:947 117:677
118:677 119:1040 120:255 121:672 122:1610 123:1038
124:1283 125:1255 128:214 129:161 130:165 131:555
132:101 133:20 134:213 135:49 136:208 137:143
138:300 139:108 140:462 141:203 142:359 143:378
144:487 145:51 146:431 147:193 148:624 149:274
150:162 151:230 152:296 153:180 154:2 155:377
156:176 157:316 158:129 159:364 160:311 161:200
162:276 163:150 164:486 165:349 166:496 167:410
168:721 169:156 170:754 171:69 172:2 173:1253
174:521 175:322 177:36 178:795 180:803 181:4
182:369 183:243 184:229 186:1041 187:814 188:913
189:1032 190:4560 192:5725 193:4778 194:3490 195:2951
196:1198 197:4 198:3501 199:3825 200:5531 201:1581
202:8044 203:8348 204:4028 205:2282 206:2547 207:2995
208:3895 209:3449 210:2599 211:1345 212:1946 213:1729
214:759 215:63 216:4824 217:1654 218:541 219:371
220:1191 221:460 222:313 223:99
End of report
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