Routing Table Report 08:00 +10GMT Tue 08 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 344509
Prefixes after maximum aggregation: 156577
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 172405
Total ASes present in the Internet Routing Table: 35871
Prefixes per ASN: 9.60
Origin-only ASes present in the Internet Routing Table: 31029
Origin ASes announcing only one prefix: 14958
Transit ASes present in the Internet Routing Table: 4842
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (23456) 20
Prefixes from unregistered ASNs in the Routing Table: 1358
Unregistered ASNs in the Routing Table: 289
Number of 32-bit ASNs allocated by the RIRs: 1179
Prefixes from 32-bit ASNs in the Routing Table: 1817
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 250
Number of addresses announced to Internet: 2484634624
Equivalent to 148 /8s, 24 /16s and 132 /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: 141264
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82905
Total APNIC prefixes after maximum aggregation: 28302
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80503
Unique aggregates announced from the APNIC address blocks: 36181
APNIC Region origin ASes present in the Internet Routing Table: 4297
APNIC Prefixes per ASN: 18.73
APNIC Region origin ASes announcing only one prefix: 1216
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: 594970112
Equivalent to 35 /8s, 118 /16s and 134 /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: 137170
Total ARIN prefixes after maximum aggregation: 70129
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 109887
Unique aggregates announced from the ARIN address blocks: 44949
ARIN Region origin ASes present in the Internet Routing Table: 14158
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5400
ARIN Region transit ASes present in the Internet Routing Table: 1392
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796279040
Equivalent to 47 /8s, 118 /16s and 65 /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: 82971
Total RIPE prefixes after maximum aggregation: 46891
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 76260
Unique aggregates announced from the RIPE address blocks: 49443
RIPE Region origin ASes present in the Internet Routing Table: 15388
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: 480928000
Equivalent to 28 /8s, 170 /16s and 97 /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: 31479
Total LACNIC prefixes after maximum aggregation: 7275
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30496
Unique aggregates announced from the LACNIC address blocks: 16120
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.40
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81335040
Equivalent to 4 /8s, 217 /16s and 19 /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: 7510
Total AfriNIC prefixes after maximum aggregation: 1814
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5887
Unique aggregates announced from the AfriNIC address blocks: 1862
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.60
AfriNIC Region origin ASes announcing only one prefix: 129
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: 21896192
Equivalent to 1 /8s, 78 /16s and 28 /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 1867 9501 591 Korea Telecom (KIX)
7545 1580 301 84 TPG Internet Pty Ltd
4755 1421 638 165 TATA Communications formerly
17974 1404 467 30 PT Telekomunikasi Indonesia
24560 1120 324 186 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
9829 1001 867 52 National Internet Backbone
4808 938 2032 271 CNCGROUP IP network China169
18101 934 117 141 Reliance Infocom Ltd Internet
17488 907 159 100 Hathway IP Over Cable Interne
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 1792 697 130 PaeTec Communications, Inc.
6478 1533 298 89 AT&T Services, Inc.
20115 1527 1534 650 Charter Communications
18566 1518 325 176 Covad Communications Co.
7018 1381 6740 902 AT&T Services, Inc.
2386 1293 538 934 AT&T Data Communications Serv
11492 1290 236 67 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 514 1780 318 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
34984 467 98 146 BILISIM TELEKOM
3292 448 1996 389 TDC Data Networks
8866 441 133 23 Bulgarian Telecommunication C
20940 419 99 323 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
8151 1226 2683 359 Uninet S.A. de C.V.
28573 1207 961 83 Types of queries are: POCs, o
6503 1166 354 74 Axtel, S.A.B. de C.V.
7303 887 463 133 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 467 36 37 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 784 445 11 TEDATA
24863 767 147 37 LINKdotNET AS number
15475 440 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 229 12 9 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 200 199 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 1867 9501 591 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Online LLC
23456 1817 452 1032 32-bit ASN transition
1785 1792 697 130 PaeTec Communications, Inc.
7545 1580 301 84 TPG Internet Pty Ltd
6478 1533 298 89 AT&T Services, Inc.
20115 1527 1534 650 Charter Communications
18566 1518 325 176 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 1792 1662 PaeTec Communications, Inc.
19262 1829 1547 Verizon Online LLC
7545 1580 1496 TPG Internet Pty Ltd
6478 1533 1444 AT&T Services, Inc.
17974 1404 1374 PT Telekomunikasi Indonesia
18566 1518 1342 Covad Communications Co.
4766 1867 1276 Korea Telecom (KIX)
4755 1421 1256 TATA Communications formerly
11492 1290 1223 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 /15:1371 /16:11531 /17:5625 /18:9304
/19:19059 /20:24659 /21:25042 /22:33346 /23:31724 /24:180845
/25:11 /26:17 /27:23 /28:148 /29:91 /30:45
/31:0 /32:105
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3682 BellSouth.net Inc.
18566 1496 1518 Covad Communications Co.
6478 1487 1533 AT&T Services, Inc.
4323 1388 2580 tw telecom holdings, inc.
10620 1275 1384 Types of queries are: POCs, o
11492 1247 1290 CABLE ONE, INC.
7011 1056 1157 Frontier Communications of Am
1785 1055 1792 PaeTec Communications, Inc.
23456 1022 1817 32-bit ASN transition
6503 948 1166 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)
----------------------------------------------
1:263 2:42 4:14 5:1 8:339 9:1
12:2026 13:1 14:403 15:15 16:3 17:8
20:9 23:1 24:1505 27:599 31:3 32:56
33:4 34:2 36:2 37:1 38:705 39:1
40:101 41:2286 42:13 44:3 46:705 47:4
49:163 50:180 52:13 55:3 56:2 57:29
58:756 59:475 60:382 61:1014 62:1018 63:1921
64:3825 65:2346 66:4320 67:1780 68:1064 69:2876
70:698 71:407 72:2001 73:1 74:2339 75:291
76:341 77:847 78:700 79:443 80:1070 81:798
82:524 83:466 84:644 85:1046 86:574 87:765
88:357 89:1568 90:171 91:3578 92:496 93:1057
94:1229 95:771 96:466 97:252 98:812 99:34
101:47 106:1 107:4 108:129 109:911 110:477
111:710 112:307 113:390 114:487 115:660 116:913
117:676 118:676 119:1036 120:254 121:673 122:1619
123:1038 124:1275 125:1249 128:214 129:159 130:166
131:556 132:101 133:20 134:212 135:49 136:208
137:143 138:299 139:116 140:464 141:203 142:357
143:377 144:487 145:51 146:431 147:201 148:626
149:273 150:162 151:230 152:296 153:180 154:2
155:377 156:175 157:314 158:130 159:363 160:311
161:201 162:277 163:150 164:486 165:342 166:502
167:409 168:722 169:156 170:754 171:69 172:2
173:1246 174:520 175:326 177:35 178:790 180:795
181:4 182:384 183:244 184:226 186:1039 187:813
188:908 189:1032 190:4563 192:5724 193:4780 194:3490
195:2945 196:1197 197:4 198:3495 199:3818 200:5544
201:1575 202:8041 203:8352 204:4031 205:2279 206:2549
207:2993 208:3887 209:3456 210:2601 211:1347 212:1941
213:1732 214:760 215:63 216:4809 217:1651 218:537
219:371 220:1196 221:456 222:313 223:99
End of report
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