Routing Table Report 08:00 +10GMT Wed 05 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 369340
Prefixes after maximum aggregation: 166838
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185224
Total ASes present in the Internet Routing Table: 37333
Prefixes per ASN: 9.89
Origin-only ASes present in the Internet Routing Table: 32230
Origin ASes announcing only one prefix: 15482
Transit ASes present in the Internet Routing Table: 5103
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2283
Unregistered ASNs in the Routing Table: 896
Number of 32-bit ASNs allocated by the RIRs: 1811
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3357
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2498961664
Equivalent to 148 /8s, 243 /16s and 33 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 153508
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88909
Total APNIC prefixes after maximum aggregation: 29493
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 86341
Unique aggregates announced from the APNIC address blocks: 37886
APNIC Region origin ASes present in the Internet Routing Table: 4521
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 684
Average APNIC Region AS path length visible: 4.0
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: 627651584
Equivalent to 37 /8s, 105 /16s and 52 /24s
Percentage of available APNIC address space announced: 79.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 142787
Total ARIN prefixes after maximum aggregation: 73488
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115224
Unique aggregates announced from the ARIN address blocks: 48052
ARIN Region origin ASes present in the Internet Routing Table: 14628
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5645
ARIN Region transit ASes present in the Internet Routing Table: 1499
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804523008
Equivalent to 47 /8s, 244 /16s and 12 /24s
Percentage of available ARIN address space announced: 63.9
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: 90470
Total RIPE prefixes after maximum aggregation: 50421
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83103
Unique aggregates announced from the RIPE address blocks: 54179
RIPE Region origin ASes present in the Internet Routing Table: 16004
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 7967
RIPE Region transit ASes present in the Internet Routing Table: 2493
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 490288896
Equivalent to 29 /8s, 57 /16s and 55 /24s
Percentage of available RIPE address space announced: 79.0
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: 34532
Total LACNIC prefixes after maximum aggregation: 7719
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 34037
Unique aggregates announced from the LACNIC address blocks: 18089
LACNIC Region origin ASes present in the Internet Routing Table: 1520
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 267
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: 89885696
Equivalent to 5 /8s, 91 /16s and 140 /24s
Percentage of available LACNIC address space announced: 59.5
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: 8576
Total AfriNIC prefixes after maximum aggregation: 2016
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6655
Unique aggregates announced from the AfriNIC address blocks: 1932
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.75
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 100
Average AfriNIC Region AS path length visible: 3.3
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: 27733504
Equivalent to 1 /8s, 167 /16s and 46 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1928 11039 650 Korea Telecom (KIX)
17974 1667 512 38 PT Telekomunikasi Indonesia
7545 1603 303 85 TPG Internet Pty Ltd
4755 1532 378 174 TATA Communications formerly
24560 1177 345 208 Bharti Airtel Ltd., Telemedia
9829 1165 989 28 National Internet Backbone
9583 1093 80 505 Sify Limited
7552 989 1062 11 Vietel Corporation
4808 959 2003 270 CNCGROUP IP network China169
17488 902 185 168 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 3558 3817 226 BellSouth.net Inc.
18566 1914 366 238 Covad Communications Co.
7029 1864 1033 208 Windstream Communications Inc
1785 1831 680 121 PaeTec Communications, Inc.
4323 1628 1098 392 tw telecom holdings, inc.
20115 1591 1541 635 Charter Communications
22773 1457 2907 100 Cox Communications Inc.
19262 1393 4728 400 Verizon Online LLC
30036 1376 249 676 Mediacom Communications Corp
7018 1349 7084 884 AT&T Services, 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
8402 1303 352 13 Corbina telecom
34984 573 108 177 BILISIM TELEKOM
6830 556 1873 333 UPC Broadband
9116 540 326 31 Goldenlines main autonomous s
20940 532 181 417 Akamai Technologies European
3320 502 8169 384 Deutsche Telekom AG
3292 482 2082 409 TDC Data Networks
12479 470 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1681 310 155 Types of queries are: POCs, o
28573 1358 1013 70 Types of queries are: POCs, o
8151 1267 2804 338 Uninet S.A. de C.V.
7303 1159 682 172 Telecom Argentina S.A.
14420 756 59 87 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
27947 564 72 79 Telconet S.A
6503 562 450 70 Axtel, S.A.B. de C.V.
3816 535 232 99 Types of queries are: POCs, o
11172 521 101 95 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
24863 810 146 33 LINKdotNET AS number
8452 727 445 11 TEDATA
15475 445 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 275 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 229 13 7 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 192 17 11 Ci Telecom Autonomous system
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 3558 3817 226 BellSouth.net Inc.
4766 1928 11039 650 Korea Telecom (KIX)
18566 1914 366 238 Covad Communications Co.
7029 1864 1033 208 Windstream Communications Inc
1785 1831 680 121 PaeTec Communications, Inc.
10620 1681 310 155 Types of queries are: POCs, o
17974 1667 512 38 PT Telekomunikasi Indonesia
4323 1628 1098 392 tw telecom holdings, inc.
7545 1603 303 85 TPG Internet Pty Ltd
20115 1591 1541 635 Charter Communications
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 1831 1710 PaeTec Communications, Inc.
18566 1914 1676 Covad Communications Co.
7029 1864 1656 Windstream Communications Inc
17974 1667 1629 PT Telekomunikasi Indonesia
10620 1681 1526 Types of queries are: POCs, o
7545 1603 1518 TPG Internet Pty Ltd
4755 1532 1358 TATA Communications formerly
22773 1457 1357 Cox Communications Inc.
8402 1303 1290 Corbina telecom
28573 1358 1288 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.
25639 UNALLOCATED 12.41.169.0/24 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
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:464 /14:803 /15:1419 /16:11953 /17:5967 /18:9988
/19:19935 /20:27081 /21:27088 /22:36440 /23:34543 /24:192755
/25:12 /26:20 /27:24 /28:157 /29:126 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2193 3558 BellSouth.net Inc.
18566 1869 1914 Covad Communications Co.
10620 1576 1681 Types of queries are: POCs, o
7029 1543 1864 Windstream Communications Inc
30036 1338 1376 Mediacom Communications Corp
8402 1280 1303 Corbina telecom
11492 1113 1150 CABLE ONE, INC.
1785 1054 1831 PaeTec Communications, Inc.
7011 1052 1173 Frontier Communications of Am
22773 946 1457 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:382 2:447 4:15 5:1 6:3 8:351
12:1952 13:1 14:521 15:13 16:3 17:7
20:10 23:39 24:1684 27:958 31:572 32:60
33:4 34:2 36:4 38:745 40:108 41:2667
42:48 44:3 46:990 47:3 49:261 50:433
52:13 55:5 56:2 57:36 58:832 59:488
60:362 61:1019 62:1081 63:1926 64:4002 65:2301
66:3979 67:1950 68:1096 69:3182 70:825 71:377
72:1849 74:2467 75:355 76:340 77:884 78:856
79:486 80:1124 81:837 82:505 83:503 84:622
85:1125 86:409 87:877 88:354 89:1591 90:268
91:4159 92:524 93:1360 94:1319 95:970 96:435
97:278 98:911 99:37 101:85 103:340 106:7
107:59 108:47 109:1037 110:631 111:788 112:297
113:455 114:555 115:665 116:858 117:634 118:796
119:1194 120:333 121:665 122:1593 123:1006 124:1287
125:1323 128:207 129:171 130:160 131:576 132:104
133:21 134:206 135:54 136:212 137:136 138:288
139:120 140:473 141:291 142:370 143:413 144:485
145:63 146:466 147:215 148:616 149:263 150:146
151:193 152:444 153:178 154:5 155:387 156:204
157:329 158:151 159:397 160:323 161:196 162:334
163:168 164:507 165:364 166:535 167:432 168:738
169:145 170:864 171:85 172:1 173:1650 174:654
175:405 176:249 177:286 178:1051 180:1084 181:37
182:615 183:209 184:388 185:1 186:1506 187:669
188:929 189:872 190:5162 192:5869 193:5025 194:3531
195:3095 196:1245 197:185 198:3569 199:4090 200:5448
201:1641 202:8281 203:8370 204:4193 205:2337 206:2584
207:2753 208:4027 209:3424 210:2617 211:1454 212:2067
213:1795 214:783 215:90 216:4886 217:1614 218:551
219:333 220:1169 221:498 222:293 223:272
End of report
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