Routing Table Report 08:00 +10GMT Mon 26 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 368239
Prefixes after maximum aggregation: 166413
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185261
Total ASes present in the Internet Routing Table: 37290
Prefixes per ASN: 9.88
Origin-only ASes present in the Internet Routing Table: 32188
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5102
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 31
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2674
Unregistered ASNs in the Routing Table: 853
Number of 32-bit ASNs allocated by the RIRs: 1771
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3284
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2497311744
Equivalent to 148 /8s, 217 /16s and 244 /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: 91.4
Total number of prefixes smaller than registry allocations: 152601
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88963
Total APNIC prefixes after maximum aggregation: 29448
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86416
Unique aggregates announced from the APNIC address blocks: 38232
APNIC Region origin ASes present in the Internet Routing Table: 4520
APNIC Prefixes per ASN: 19.12
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 3.9
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: 627413248
Equivalent to 37 /8s, 101 /16s and 145 /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: 142516
Total ARIN prefixes after maximum aggregation: 73373
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114926
Unique aggregates announced from the ARIN address blocks: 48121
ARIN Region origin ASes present in the Internet Routing Table: 14618
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1486
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: 805030144
Equivalent to 47 /8s, 251 /16s and 201 /24s
Percentage of available ARIN address space announced: 64.0
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: 89866
Total RIPE prefixes after maximum aggregation: 50263
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82560
Unique aggregates announced from the RIPE address blocks: 54061
RIPE Region origin ASes present in the Internet Routing Table: 15978
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2495
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: 489743872
Equivalent to 29 /8s, 48 /16s and 230 /24s
Percentage of available RIPE address space announced: 78.9
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: 34406
Total LACNIC prefixes after maximum aggregation: 7678
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33865
Unique aggregates announced from the LACNIC address blocks: 17881
LACNIC Region origin ASes present in the Internet Routing Table: 1514
LACNIC Prefixes per ASN: 22.37
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 262
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: 89268736
Equivalent to 5 /8s, 82 /16s and 34 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8507
Total AfriNIC prefixes after maximum aggregation: 2007
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6582
Unique aggregates announced from the AfriNIC address blocks: 1996
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.60
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 27390976
Equivalent to 1 /8s, 161 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 40.8
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 1938 11040 649 Korea Telecom (KIX)
17974 1707 519 33 PT Telekomunikasi Indonesia
7545 1602 303 86 TPG Internet Pty Ltd
4755 1535 638 174 TATA Communications formerly
24560 1181 337 193 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 National Internet Backbone
9583 1090 80 504 Sify Limited
7552 990 1062 11 Vietel Corporation
4808 959 2003 271 CNCGROUP IP network China169
18101 954 118 142 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 3560 3817 230 BellSouth.net Inc.
18566 1913 365 237 Covad Communications Co.
1785 1829 680 123 PaeTec Communications, Inc.
7029 1742 1033 206 Windstream Communications Inc
4323 1624 1098 392 tw telecom holdings, inc.
20115 1596 1543 633 Charter Communications
22773 1457 2907 99 Cox Communications Inc.
30036 1419 263 676 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1350 7084 883 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 997 352 13 Corbina telecom
34984 565 108 180 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
20940 537 180 415 Akamai Technologies European
6830 532 1813 325 UPC Broadband
3320 493 8167 381 Deutsche Telekom AG
3292 478 2082 408 TDC Data Networks
12479 474 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
29049 424 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 1680 309 155 Types of queries are: POCs, o
28573 1359 1013 70 Types of queries are: POCs, o
8151 1275 2784 346 Uninet S.A. de C.V.
7303 1162 681 173 Telecom Argentina S.A.
14420 736 58 88 CORPORACION NACIONAL DE TELEC
22047 580 322 17 Types of queries are: POCs, o
6503 568 450 70 Axtel, S.A.B. de C.V.
27947 561 56 76 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
11172 516 101 93 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 809 147 41 LINKdotNET AS number
8452 713 445 11 TEDATA
15475 449 74 8 Nile Online
36992 291 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
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 3560 3817 230 BellSouth.net Inc.
23456 3284 777 1779 32-bit ASN transition
4766 1938 11040 649 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
1785 1829 680 123 PaeTec Communications, Inc.
7029 1742 1033 206 Windstream Communications Inc
17974 1707 519 33 PT Telekomunikasi Indonesia
10620 1680 309 155 Types of queries are: POCs, o
4323 1624 1098 392 tw telecom holdings, inc.
7545 1602 303 86 TPG Internet Pty Ltd
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 1829 1706 PaeTec Communications, Inc.
18566 1913 1676 Covad Communications Co.
17974 1707 1674 PT Telekomunikasi Indonesia
7029 1742 1536 Windstream Communications Inc
10620 1680 1525 Types of queries are: POCs, o
7545 1602 1516 TPG Internet Pty Ltd
23456 3284 1505 32-bit ASN transition
4755 1535 1361 TATA Communications formerly
22773 1457 1358 Cox Communications Inc.
4766 1938 1289 Korea Telecom (KIX)
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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /14:800 /15:1418 /16:11953 /17:5970 /18:9986
/19:19913 /20:27020 /21:27033 /22:36276 /23:34513 /24:192004
/25:12 /26:20 /27:23 /28:153 /29:121 /30:59
/31:0 /32:125
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2196 3560 BellSouth.net Inc.
18566 1869 1913 Covad Communications Co.
10620 1575 1680 Types of queries are: POCs, o
23456 1567 3284 32-bit ASN transition
7029 1422 1742 Windstream Communications Inc
30036 1376 1419 Mediacom Communications Corp
11492 1111 1148 CABLE ONE, INC.
7011 1057 1182 Frontier Communications of Am
1785 1053 1829 PaeTec Communications, Inc.
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 2:301 4:15 5:1 6:3 8:349
12:1953 13:1 14:533 15:13 16:3 17:7
20:9 23:35 24:1679 27:938 31:547 32:59
33:4 34:2 36:4 38:738 40:108 41:2602
42:48 44:3 46:988 47:3 49:258 50:425
52:13 54:2 55:4 56:2 57:35 58:827
59:490 60:373 61:1004 62:1093 63:1937 64:4021
65:2302 66:3953 67:1957 68:1110 69:3188 70:811
71:377 72:1854 74:2451 75:348 76:340 77:870
78:806 79:488 80:1124 81:839 82:511 83:522
84:623 85:1085 86:416 87:876 88:353 89:1590
90:267 91:4115 92:532 93:1303 94:1326 95:892
96:431 97:276 98:925 99:37 101:85 103:318
106:70 107:52 108:77 109:1023 110:636 111:786
112:316 113:427 114:555 115:668 116:866 117:672
118:857 119:1172 120:332 121:665 122:1601 123:1000
124:1300 125:1336 128:206 129:172 130:159 131:580
132:116 133:21 134:207 135:54 136:210 137:136
138:289 139:116 140:471 141:286 142:369 143:406
144:485 145:57 146:465 147:215 148:619 149:258
150:146 151:191 152:444 153:177 154:5 155:394
156:202 157:328 158:146 159:393 160:323 161:198
162:337 163:166 164:506 165:370 166:535 167:432
168:745 169:144 170:861 171:83 172:1 173:1641
174:595 175:400 176:208 177:278 178:1013 180:1070
181:30 182:615 183:218 184:366 185:1 186:1462
187:667 188:945 189:855 190:5153 192:5868 193:5011
194:3532 195:3060 196:1250 197:176 198:3544 199:4081
200:5441 201:1634 202:8268 203:8349 204:4184 205:2328
206:2589 207:2759 208:4025 209:3431 210:2632 211:1460
212:2104 213:1775 214:779 215:76 216:4854 217:1607
218:550 219:333 220:1190 221:497 222:294 223:258
End of report
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