Routing Table Report 08:00 +10GMT Thu 15 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 365510
Prefixes after maximum aggregation: 165911
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 184659
Total ASes present in the Internet Routing Table: 37210
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 32109
Origin ASes announcing only one prefix: 15470
Transit ASes present in the Internet Routing Table: 5101
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 43
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 2595
Unregistered ASNs in the Routing Table: 795
Number of 32-bit ASNs allocated by the RIRs: 1724
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3242
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 101
Number of addresses announced to Internet: 2494053120
Equivalent to 148 /8s, 168 /16s and 59 /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: 91.3
Total number of prefixes smaller than registry allocations: 150864
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88689
Total APNIC prefixes after maximum aggregation: 29390
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86160
Unique aggregates announced from the APNIC address blocks: 38223
APNIC Region origin ASes present in the Internet Routing Table: 4513
APNIC Prefixes per ASN: 19.09
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 687
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: 626453504
Equivalent to 37 /8s, 86 /16s and 236 /24s
Percentage of available APNIC address space announced: 79.4
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: 142006
Total ARIN prefixes after maximum aggregation: 73214
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114204
Unique aggregates announced from the ARIN address blocks: 48052
ARIN Region origin ASes present in the Internet Routing Table: 14583
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1480
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804823808
Equivalent to 47 /8s, 248 /16s and 163 /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: 88409
Total RIPE prefixes after maximum aggregation: 49998
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81471
Unique aggregates announced from the RIPE address blocks: 53815
RIPE Region origin ASes present in the Internet Routing Table: 15951
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7967
RIPE Region transit ASes present in the Internet Routing Table: 2503
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 43
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 488742656
Equivalent to 29 /8s, 33 /16s and 159 /24s
Percentage of available RIPE address space announced: 78.7
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: 34037
Total LACNIC prefixes after maximum aggregation: 7668
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33493
Unique aggregates announced from the LACNIC address blocks: 17742
LACNIC Region origin ASes present in the Internet Routing Table: 1506
LACNIC Prefixes per ASN: 22.24
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 263
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: 88874752
Equivalent to 5 /8s, 76 /16s and 31 /24s
Percentage of available LACNIC address space announced: 58.9
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: 8418
Total AfriNIC prefixes after maximum aggregation: 2056
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6514
Unique aggregates announced from the AfriNIC address blocks: 1999
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 154
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: 27262720
Equivalent to 1 /8s, 159 /16s and 255 /24s
Percentage of available AfriNIC address space announced: 40.6
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 1943 11039 648 Korea Telecom (KIX)
17974 1714 516 31 PT Telekomunikasi Indonesia
7545 1583 301 81 TPG Internet Pty Ltd
4755 1539 379 167 TATA Communications formerly
24560 1180 337 193 Bharti Airtel Ltd., Telemedia
9829 1155 989 28 National Internet Backbone
9583 1077 80 505 Sify Limited
7552 977 1062 11 Vietel Corporation
4808 956 1994 269 CNCGROUP IP network China169
17488 956 189 164 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 3562 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
4323 1626 1101 394 tw telecom holdings, inc.
7029 1621 1033 208 Windstream Communications Inc
20115 1592 1541 632 Charter Communications
22773 1452 2905 98 Cox Communications Inc.
30036 1425 264 686 Mediacom Communications Corp
19262 1394 4724 399 Verizon Online LLC
7018 1346 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
34984 556 107 178 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Broadband
20940 505 159 393 Akamai Technologies European
3292 472 2080 404 TDC Data Networks
12479 472 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8402 406 352 13 Corbina telecom
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 1641 304 165 Types of queries are: POCs, o
28573 1316 1008 74 Types of queries are: POCs, o
8151 1273 2783 354 Uninet S.A. de C.V.
7303 1153 677 170 Telecom Argentina S.A.
14420 718 57 92 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 570 450 69 Axtel, S.A.B. de C.V.
27947 556 56 77 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia 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 809 147 41 LINKdotNET AS number
8452 701 445 11 TEDATA
15475 513 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 236 13 8 Starcomms Nigeria Limited
15706 195 32 6 Sudatel Internet Exchange Aut
12258 194 28 63 Vodacom Internet Company
29571 191 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 3562 3817 227 BellSouth.net Inc.
23456 3242 768 1749 32-bit ASN transition
4766 1943 11039 648 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1825 680 122 PaeTec Communications, Inc.
17974 1714 516 31 PT Telekomunikasi Indonesia
10620 1641 304 165 Types of queries are: POCs, o
4323 1626 1101 394 tw telecom holdings, inc.
7029 1621 1033 208 Windstream Communications Inc
20115 1592 1541 632 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 1825 1703 PaeTec Communications, Inc.
17974 1714 1683 PT Telekomunikasi Indonesia
18566 1910 1675 Covad Communications Co.
7545 1583 1502 TPG Internet Pty Ltd
23456 3242 1493 32-bit ASN transition
10620 1641 1476 Types of queries are: POCs, o
7029 1621 1413 Windstream Communications Inc
4755 1539 1372 TATA Communications formerly
22773 1452 1354 Cox Communications Inc.
4766 1943 1295 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 /12:235
/13:464 /14:798 /15:1410 /16:11925 /17:5943 /18:9973
/19:19823 /20:26861 /21:26879 /22:35815 /23:34311 /24:190415
/25:12 /26:20 /27:23 /28:153 /29:120 /30:60
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3562 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1565 3242 32-bit ASN transition
10620 1536 1641 Types of queries are: POCs, o
30036 1383 1425 Mediacom Communications Corp
7029 1306 1621 Windstream Communications Inc
11492 1104 1141 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1052 1825 PaeTec Communications, Inc.
22773 943 1452 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:371 2:51 4:15 5:1 6:3 8:348
12:1950 13:1 14:530 15:13 16:3 17:5
20:10 23:32 24:1671 27:934 31:529 32:59
33:4 34:2 36:4 38:734 40:107 41:2508
42:46 44:3 46:970 47:3 49:239 50:418
52:13 54:2 55:6 56:2 57:34 58:827
59:491 60:374 61:1013 62:1086 63:1936 64:4005
65:2299 66:3914 67:1951 68:1095 69:3168 70:778
71:377 72:1857 74:2431 75:321 76:343 77:869
78:666 79:479 80:1122 81:841 82:507 83:500
84:686 85:1087 86:416 87:864 88:348 89:1535
90:234 91:4078 92:525 93:1149 94:1334 95:760
96:418 97:272 98:930 99:37 101:77 103:286
106:71 107:44 108:76 109:1014 110:637 111:745
112:305 113:420 114:551 115:664 116:907 117:659
118:856 119:1179 120:337 121:668 122:1595 123:1009
124:1294 125:1339 128:210 129:172 130:160 131:581
132:111 133:21 134:207 135:52 136:210 137:134
138:294 139:98 140:471 141:289 142:371 143:406
144:479 145:60 146:459 147:215 148:615 149:251
150:146 151:190 152:445 153:179 154:5 155:390
156:197 157:323 158:143 159:392 160:323 161:198
162:332 163:163 164:512 165:370 166:536 167:433
168:741 169:144 170:857 171:84 172:1 173:1630
174:627 175:392 176:172 177:246 178:996 180:1062
181:27 182:601 183:234 184:362 185:1 186:1426
187:665 188:940 189:869 190:5135 192:5869 193:5007
194:3523 195:3061 196:1244 197:142 198:3535 199:4063
200:5437 201:1633 202:8226 203:8386 204:4184 205:2317
206:2589 207:2761 208:4024 209:3437 210:2615 211:1460
212:2097 213:1770 214:784 215:75 216:4824 217:1608
218:542 219:326 220:1188 221:499 222:295 223:262
End of report
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