Routing Table Report 08:00 +10GMT Tue 21 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355551
Prefixes after maximum aggregation: 161511
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178549
Total ASes present in the Internet Routing Table: 36603
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31589
Origin ASes announcing only one prefix: 15208
Transit ASes present in the Internet Routing Table: 5014
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2216
Unregistered ASNs in the Routing Table: 534
Number of 32-bit ASNs allocated by the RIRs: 1469
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2685
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 136
Number of addresses announced to Internet: 2491241216
Equivalent to 148 /8s, 125 /16s and 83 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 146577
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85497
Total APNIC prefixes after maximum aggregation: 28820
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82936
Unique aggregates announced from the APNIC address blocks: 36268
APNIC Region origin ASes present in the Internet Routing Table: 4437
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 670
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: 620891392
Equivalent to 37 /8s, 2 /16s and 13 /24s
Percentage of available APNIC address space announced: 78.7
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: 139730
Total ARIN prefixes after maximum aggregation: 71426
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111983
Unique aggregates announced from the ARIN address blocks: 46521
ARIN Region origin ASes present in the Internet Routing Table: 14365
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5503
ARIN Region transit ASes present in the Internet Routing Table: 1459
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802390784
Equivalent to 47 /8s, 211 /16s and 131 /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: 86205
Total RIPE prefixes after maximum aggregation: 48808
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79611
Unique aggregates announced from the RIPE address blocks: 52518
RIPE Region origin ASes present in the Internet Routing Table: 15719
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7859
RIPE Region transit ASes present in the Internet Routing Table: 2460
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 477838080
Equivalent to 28 /8s, 123 /16s and 59 /24s
Percentage of available RIPE address space announced: 77.0
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: 32425
Total LACNIC prefixes after maximum aggregation: 7443
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31831
Unique aggregates announced from the LACNIC address blocks: 16889
LACNIC Region origin ASes present in the Internet Routing Table: 1456
LACNIC Prefixes per ASN: 21.86
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 252
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: 84809472
Equivalent to 5 /8s, 14 /16s and 23 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8278
Total AfriNIC prefixes after maximum aggregation: 2005
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6434
Unique aggregates announced from the AfriNIC address blocks: 1982
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.90
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.5
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: 24323840
Equivalent to 1 /8s, 115 /16s and 39 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1901 9492 622 Korea Telecom (KIX)
17974 1570 459 44 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1476 374 165 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
7552 1054 1064 7 Vietel Corporation
9829 1043 883 59 National Internet Backbone
4808 953 2008 279 CNCGROUP IP network China169
17488 947 182 100 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 3625 3819 251 BellSouth.net Inc.
18566 1912 365 236 Covad Communications Co.
1785 1799 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
20115 1523 1527 636 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7029 1409 1030 206 Alltel Information Services,
7018 1373 7087 902 AT&T Services, Inc.
22773 1339 2897 86 Cox Communications 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
9116 540 326 31 Goldenlines main autonomous s
34984 524 107 182 BILISIM TELEKOM
6830 513 1780 321 UPC Broadband
3292 470 2080 405 TDC Data Networks
20940 466 137 358 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 7 France Telecom Espana SA
3320 420 8151 367 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 1529 280 157 Types of queries are: POCs, o
8151 1250 2710 357 Uninet S.A. de C.V.
28573 1242 993 78 Types of queries are: POCs, o
7303 967 506 158 Telecom Argentina S.A.
6503 732 354 74 Axtel, S.A.B. de C.V.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 Types of queries are: POCs, o
3816 531 229 98 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 494 100 85 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 794 147 35 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 525 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 258 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 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 3625 3819 251 BellSouth.net Inc.
23456 2685 666 1458 32-bit ASN transition
18566 1912 365 236 Covad Communications Co.
4766 1901 9492 622 Korea Telecom (KIX)
1785 1799 681 122 PaeTec Communications, Inc.
4323 1659 1097 398 tw telecom holdings, inc.
6478 1641 298 276 AT&T Services, Inc.
17974 1570 459 44 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
10620 1529 280 157 Types of queries are: POCs, o
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 1799 1677 PaeTec Communications, Inc.
18566 1912 1676 Covad Communications Co.
17974 1570 1526 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1529 1372 Types of queries are: POCs, o
6478 1641 1365 AT&T Services, Inc.
4755 1476 1311 TATA Communications formerly
4766 1901 1279 Korea Telecom (KIX)
4323 1659 1261 tw telecom holdings, inc.
22773 1339 1253 Cox Communications 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
27.0.128.0/17 7514 Media EXchange, Inc.
31.132.80.0/20 50704 Benefic Consult SRL
31.132.192.0/21 50704 Benefic Consult SRL
41.190.32.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:461 /14:796 /15:1396 /16:11921 /17:5822 /18:9720
/19:19478 /20:25998 /21:25960 /22:34181 /23:32967 /24:185966
/25:13 /26:18 /27:26 /28:160 /29:104 /30:58
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3625 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1604 1641 AT&T Services, Inc.
10620 1419 1529 Types of queries are: POCs, o
23456 1328 2685 32-bit ASN transition
7029 1088 1409 Alltel Information Services,
11492 1086 1132 CABLE ONE, INC.
7011 1060 1160 Frontier Communications of Am
1785 1050 1799 PaeTec Communications, Inc.
22773 855 1339 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:288 2:40 4:16 5:1 6:3 8:336
12:1972 13:1 14:446 15:15 16:3 17:8
20:10 23:11 24:1649 27:789 31:446 32:59
33:4 34:2 37:1 38:732 40:103 41:2505
42:2 44:3 46:982 47:3 49:193 50:416
52:13 54:2 55:3 56:2 57:30 58:798
59:468 60:384 61:1026 62:1046 63:1933 64:3916
65:2284 66:3848 67:1890 68:1083 69:3037 70:751
71:376 72:1886 74:2372 75:317 76:338 77:882
78:706 79:462 80:1110 81:841 82:496 83:459
84:668 85:1073 86:552 87:759 88:334 89:1528
90:208 91:3855 92:530 93:1048 94:1299 95:829
96:440 97:249 98:878 99:36 101:66 103:81
106:10 107:14 108:71 109:1000 110:604 111:701
112:294 113:400 114:540 115:662 116:947 117:672
118:791 119:1144 120:308 121:645 122:1624 123:944
124:1261 125:1225 128:209 129:166 130:160 131:575
132:103 133:21 134:206 135:48 136:214 137:134
138:300 139:112 140:461 141:238 142:387 143:404
144:489 145:55 146:444 147:211 148:592 149:246
150:163 151:190 152:330 153:180 154:3 155:398
156:192 157:323 158:138 159:383 160:314 161:200
162:309 163:144 164:503 165:350 166:533 167:426
168:735 169:154 170:836 171:77 172:1 173:1621
174:603 175:359 176:135 177:161 178:998 180:882
181:19 182:469 183:223 184:302 185:1 186:1243
187:738 188:865 189:907 190:4875 192:5816 193:4959
194:3490 195:3038 196:1226 197:40 198:3543 199:3910
200:5439 201:1498 202:8116 203:8317 204:4112 205:2315
206:2592 207:2743 208:3927 209:3435 210:2638 211:1424
212:2106 213:1733 214:766 215:69 216:4899 217:1638
218:535 219:356 220:1196 221:475 222:311 223:158
End of report
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