Routing Table Report 08:00 +10GMT Tue 19 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358091
Prefixes after maximum aggregation: 163458
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180725
Total ASes present in the Internet Routing Table: 36776
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31722
Origin ASes announcing only one prefix: 15273
Transit ASes present in the Internet Routing Table: 5054
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 2276
Unregistered ASNs in the Routing Table: 616
Number of 32-bit ASNs allocated by the RIRs: 1566
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2903
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2495313920
Equivalent to 148 /8s, 187 /16s and 120 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 147734
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86226
Total APNIC prefixes after maximum aggregation: 29016
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 83822
Unique aggregates announced from the APNIC address blocks: 37580
APNIC Region origin ASes present in the Internet Routing Table: 4466
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 621656576
Equivalent to 37 /8s, 13 /16s and 186 /24s
Percentage of available APNIC address space announced: 78.8
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: 140112
Total ARIN prefixes after maximum aggregation: 72472
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 112431
Unique aggregates announced from the ARIN address blocks: 46657
ARIN Region origin ASes present in the Internet Routing Table: 14408
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5525
ARIN Region transit ASes present in the Internet Routing Table: 1454
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802519296
Equivalent to 47 /8s, 213 /16s and 121 /24s
Percentage of available ARIN address space announced: 63.8
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: 86994
Total RIPE prefixes after maximum aggregation: 49246
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80350
Unique aggregates announced from the RIPE address blocks: 52886
RIPE Region origin ASes present in the Internet Routing Table: 15795
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7893
RIPE Region transit ASes present in the Internet Routing Table: 2478
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 479574016
Equivalent to 28 /8s, 149 /16s and 184 /24s
Percentage of available RIPE address space announced: 77.3
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: 32846
Total LACNIC prefixes after maximum aggregation: 7492
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32322
Unique aggregates announced from the LACNIC address blocks: 17043
LACNIC Region origin ASes present in the Internet Routing Table: 1468
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 86037248
Equivalent to 5 /8s, 32 /16s and 211 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8338
Total AfriNIC prefixes after maximum aggregation: 2015
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6495
Unique aggregates announced from the AfriNIC address blocks: 1991
AfriNIC Region origin ASes present in the Internet Routing Table: 470
AfriNIC Prefixes per ASN: 13.82
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24421376
Equivalent to 1 /8s, 116 /16s and 164 /24s
Percentage of available AfriNIC address space announced: 36.4
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 1909 11036 632 Korea Telecom (KIX)
7545 1551 301 83 TPG Internet Pty Ltd
17974 1543 456 46 PT Telekomunikasi Indonesia
4755 1499 375 167 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 National Internet Backbone
9583 1064 78 504 Sify Limited
17488 964 187 106 Hathway IP Over Cable Interne
4808 947 2003 274 CNCGROUP IP network China169
18101 932 116 139 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 3597 3819 242 BellSouth.net Inc.
18566 1911 364 239 Covad Communications Co.
1785 1811 681 121 PaeTec Communications, Inc.
4323 1614 1098 401 tw telecom holdings, inc.
20115 1594 1534 627 Charter Communications
19262 1410 4744 390 Verizon Online LLC
7029 1387 1031 209 Windstream Communications Inc
7018 1377 7102 903 AT&T Services, Inc.
22773 1351 2897 88 Cox Communications Inc.
2386 1260 522 907 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 540 326 31 Goldenlines main autonomous s
34984 535 106 184 BILISIM TELEKOM
6830 509 1780 315 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 459 131 355 Akamai Technologies European
12479 458 593 7 France Telecom Espana SA
8866 450 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1557 286 164 Types of queries are: POCs, o
28573 1256 995 77 Types of queries are: POCs, o
8151 1253 2728 349 Uninet S.A. de C.V.
7303 986 511 165 Telecom Argentina S.A.
6503 738 354 74 Axtel, S.A.B. de C.V.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 531 230 94 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 498 54 48 Telconet 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
24863 790 147 34 LINKdotNET AS number
8452 786 445 11 TEDATA
15475 513 74 8 Nile Online
36992 314 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 149 441 87 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 3597 3819 242 BellSouth.net Inc.
23456 2903 705 1565 32-bit ASN transition
18566 1911 364 239 Covad Communications Co.
4766 1909 11036 632 Korea Telecom (KIX)
1785 1811 681 121 PaeTec Communications, Inc.
4323 1614 1098 401 tw telecom holdings, inc.
20115 1594 1534 627 Charter Communications
10620 1557 286 164 Types of queries are: POCs, o
7545 1551 301 83 TPG Internet Pty Ltd
17974 1543 456 46 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1811 1690 PaeTec Communications, Inc.
18566 1911 1672 Covad Communications Co.
17974 1543 1497 PT Telekomunikasi Indonesia
7545 1551 1468 TPG Internet Pty Ltd
10620 1557 1393 Types of queries are: POCs, o
23456 2903 1338 32-bit ASN transition
4755 1499 1332 TATA Communications formerly
4766 1909 1277 Korea Telecom (KIX)
22773 1351 1263 Cox Communications Inc.
4323 1614 1213 tw telecom holdings, 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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /8:21 /9:12 /10:26 /11:80 /12:233
/13:464 /14:794 /15:1397 /16:11975 /17:5862 /18:9762
/19:19580 /20:25900 /21:26116 /22:34577 /23:33316 /24:187484
/25:12 /26:19 /27:22 /28:158 /29:100 /30:58
/31:0 /32:123
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3597 BellSouth.net Inc.
18566 1867 1911 Covad Communications Co.
10620 1452 1557 Types of queries are: POCs, o
23456 1429 2903 32-bit ASN transition
11492 1092 1138 CABLE ONE, INC.
7029 1067 1387 Windstream Communications Inc
7011 1056 1158 Frontier Communications of Am
1785 1054 1811 PaeTec Communications, Inc.
6478 1012 1041 AT&T Services, Inc.
22773 865 1351 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:329 2:43 4:16 5:1 6:3 8:338
12:1961 13:1 14:478 15:15 16:3 17:5
20:10 23:14 24:1673 27:830 31:502 32:59
33:4 34:2 36:4 38:744 40:104 41:2555
42:32 44:3 46:1040 47:3 49:201 50:395
52:13 54:2 55:5 56:2 57:34 58:812
59:476 60:385 61:1019 62:1038 63:1928 64:3937
65:2299 66:3856 67:1873 68:1096 69:3044 70:755
71:386 72:1885 74:2410 75:317 76:338 77:887
78:704 79:468 80:1115 81:840 82:503 83:457
84:691 85:1063 86:521 87:767 88:337 89:1530
90:224 91:3973 92:522 93:1051 94:1349 95:846
96:410 97:261 98:890 99:37 101:74 103:141
106:73 107:22 108:70 109:1016 110:604 111:711
112:298 113:404 114:553 115:667 116:959 117:666
118:812 119:1157 120:312 121:652 122:1599 123:965
124:1267 125:1229 128:208 129:165 130:163 131:573
132:103 133:21 134:205 135:48 136:208 137:135
138:297 139:114 140:461 141:243 142:387 143:417
144:483 145:55 146:448 147:214 148:601 149:247
150:154 151:189 152:340 153:182 154:3 155:396
156:196 157:323 158:137 159:386 160:311 161:193
162:307 163:154 164:503 165:365 166:530 167:432
168:732 169:151 170:757 171:78 172:1 173:1598
174:610 175:366 176:144 177:169 178:997 180:889
181:22 182:479 183:232 184:346 185:1 186:1279
187:740 188:895 189:948 190:4969 192:5854 193:4994
194:3523 195:3049 196:1208 197:43 198:3518 199:3928
200:5489 201:1486 202:8202 203:8356 204:4155 205:2311
206:2583 207:2738 208:3973 209:3394 210:2598 211:1443
212:2103 213:1768 214:765 215:68 216:4919 217:1669
218:532 219:342 220:1195 221:480 222:308 223:215
End of report
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