Routing Table Report 08:00 +10GMT Sat 20 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 362356
Prefixes after maximum aggregation: 164619
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182518
Total ASes present in the Internet Routing Table: 37060
Prefixes per ASN: 9.78
Origin-only ASes present in the Internet Routing Table: 31964
Origin ASes announcing only one prefix: 15388
Transit ASes present in the Internet Routing Table: 5096
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2469
Unregistered ASNs in the Routing Table: 710
Number of 32-bit ASNs allocated by the RIRs: 1659
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3080
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2486759424
Equivalent to 148 /8s, 56 /16s and 240 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149870
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87699
Total APNIC prefixes after maximum aggregation: 29140
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85129
Unique aggregates announced from the APNIC address blocks: 37841
APNIC Region origin ASes present in the Internet Routing Table: 4487
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 683
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: 623968256
Equivalent to 37 /8s, 49 /16s and 0 /24s
Percentage of available APNIC address space announced: 79.1
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: 141114
Total ARIN prefixes after maximum aggregation: 72779
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113297
Unique aggregates announced from the ARIN address blocks: 47116
ARIN Region origin ASes present in the Internet Routing Table: 14524
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5609
ARIN Region transit ASes present in the Internet Routing Table: 1465
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803739136
Equivalent to 47 /8s, 232 /16s and 22 /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: 87973
Total RIPE prefixes after maximum aggregation: 49692
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81155
Unique aggregates announced from the RIPE address blocks: 53458
RIPE Region origin ASes present in the Internet Routing Table: 15893
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7924
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: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 487779072
Equivalent to 29 /8s, 18 /16s and 235 /24s
Percentage of available RIPE address space announced: 78.6
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: 33450
Total LACNIC prefixes after maximum aggregation: 7534
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 32852
Unique aggregates announced from the LACNIC address blocks: 17222
LACNIC Region origin ASes present in the Internet Routing Table: 1490
LACNIC Prefixes per ASN: 22.05
LACNIC Region origin ASes announcing only one prefix: 446
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: 87634688
Equivalent to 5 /8s, 57 /16s and 51 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8350
Total AfriNIC prefixes after maximum aggregation: 2081
AfriNIC Deaggregation factor: 4.01
Prefixes being announced from the AfriNIC address blocks: 6440
Unique aggregates announced from the AfriNIC address blocks: 2091
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.31
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 26913536
Equivalent to 1 /8s, 154 /16s and 171 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1935 11038 645 Korea Telecom (KIX)
17974 1580 516 31 PT Telekomunikasi Indonesia
7545 1574 301 82 TPG Internet Pty Ltd
4755 1525 374 165 TATA Communications formerly
24560 1199 337 187 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1076 79 496 Sify Limited
7552 1001 1062 11 Vietel Corporation
17488 988 184 151 Hathway IP Over Cable Interne
4808 951 2004 272 CNCGROUP IP network China169
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 3585 3817 228 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1822 681 123 PaeTec Communications, Inc.
4323 1617 1101 401 tw telecom holdings, inc.
7029 1610 1029 208 Windstream Communications Inc
20115 1585 1537 630 Charter Communications
22773 1435 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1359 7084 889 AT&T Services, Inc.
2386 1230 516 891 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
34984 541 107 183 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 511 1788 317 UPC Broadband
20940 476 136 369 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
8866 458 133 26 Bulgarian Telecommunication C
12479 455 593 7 France Telecom Espana SA
3320 424 8151 370 Deutsche Telekom AG
29049 412 30 60 AzerSat LLC.
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 1591 294 163 Types of queries are: POCs, o
8151 1264 2751 352 Uninet S.A. de C.V.
28573 1258 996 67 Types of queries are: POCs, o
7303 1046 578 163 Telecom Argentina S.A.
6503 730 450 76 Axtel, S.A.B. de C.V.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
27947 508 54 49 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 807 145 56 LINKdotNET AS number
8452 640 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 Vodacom Internet Company
24835 179 78 10 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 3585 3817 228 BellSouth.net Inc.
23456 3080 734 1653 32-bit ASN transition
4766 1935 11038 645 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1822 681 123 PaeTec Communications, Inc.
4323 1617 1101 401 tw telecom holdings, inc.
7029 1610 1029 208 Windstream Communications Inc
10620 1591 294 163 Types of queries are: POCs, o
20115 1585 1537 630 Charter Communications
17974 1580 516 31 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 1822 1699 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1580 1549 PT Telekomunikasi Indonesia
7545 1574 1492 TPG Internet Pty Ltd
10620 1591 1428 Types of queries are: POCs, o
23456 3080 1427 32-bit ASN transition
7029 1610 1402 Windstream Communications Inc
4755 1525 1360 TATA Communications formerly
22773 1435 1338 Cox Communications Inc.
4766 1935 1290 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<<
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 /12:234
/13:460 /14:796 /15:1415 /16:11906 /17:5907 /18:9932
/19:19613 /20:26503 /21:26513 /22:35218 /23:33898 /24:189312
/25:12 /26:19 /27:23 /28:159 /29:110 /30:55
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3585 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1508 3080 32-bit ASN transition
10620 1486 1591 Types of queries are: POCs, o
7029 1294 1610 Windstream Communications Inc
11492 1102 1148 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1052 1822 PaeTec Communications, Inc.
22773 931 1435 Cox Communications Inc.
30036 910 934 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:356 2:46 4:15 5:1 6:3 8:343
12:1953 13:1 14:507 15:15 16:3 17:5
20:10 23:27 24:1680 27:870 31:515 32:59
33:4 34:2 36:4 38:727 40:107 41:2476
42:45 44:3 46:1058 47:3 49:219 50:410
52:13 54:2 55:7 56:2 57:34 58:818
59:484 60:374 61:1013 62:1085 63:1923 64:3969
65:2298 66:3921 67:1917 68:1105 69:3080 70:776
71:372 72:1844 74:2433 75:327 76:338 77:861
78:709 79:488 80:1128 81:831 82:497 83:479
84:686 85:1072 86:498 87:841 88:337 89:1537
90:224 91:4046 92:526 93:1132 94:1345 95:875
96:414 97:267 98:924 99:37 101:73 103:212
106:69 107:32 108:74 109:1008 110:632 111:729
112:299 113:410 114:558 115:678 116:967 117:658
118:836 119:1182 120:313 121:661 122:1607 123:977
124:1281 125:1271 128:208 129:169 130:165 131:577
132:109 133:21 134:205 135:53 136:214 137:134
138:297 139:114 140:465 141:277 142:364 143:439
144:481 145:58 146:457 147:216 148:626 149:251
150:195 151:190 152:438 153:185 154:4 155:401
156:197 157:299 158:134 159:391 160:317 161:199
162:325 163:154 164:516 165:365 166:533 167:433
168:742 169:151 170:842 171:81 172:1 173:1651
174:614 175:380 176:154 177:230 178:998 180:931
181:26 182:516 183:241 184:363 185:1 186:1364
187:739 188:934 189:927 190:5115 192:5882 193:4983
194:3505 195:3042 196:1234 197:127 198:3529 199:4003
200:5366 201:1483 202:8198 203:8389 204:4174 205:2322
206:2586 207:2740 208:3989 209:3391 210:2612 211:1451
212:2101 213:1765 214:752 215:70 216:4828 217:1608
218:542 219:349 220:1186 221:499 222:308 223:238
End of report
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