Routing Table Report 08:00 +10GMT Tue 25 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 338404
Prefixes after maximum aggregation: 153944
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169245
Total ASes present in the Internet Routing Table: 35561
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 30763
Origin ASes announcing only one prefix: 14962
Transit ASes present in the Internet Routing Table: 4798
Transit-only ASes present in the Internet Routing Table: 111
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 317
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 1038
Prefixes from 32-bit ASNs in the Routing Table: 1598
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 207
Number of addresses announced to Internet: 2477845248
Equivalent to 147 /8s, 176 /16s and 235 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 69.0
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 137978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81431
Total APNIC prefixes after maximum aggregation: 27763
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79048
Unique aggregates announced from the APNIC address blocks: 35458
APNIC Region origin ASes present in the Internet Routing Table: 4261
APNIC Prefixes per ASN: 18.55
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 655
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 583115520
Equivalent to 34 /8s, 193 /16s and 163 /24s
Percentage of available APNIC address space announced: 79.0
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 135148
Total ARIN prefixes after maximum aggregation: 69250
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107991
Unique aggregates announced from the ARIN address blocks: 44365
ARIN Region origin ASes present in the Internet Routing Table: 14059
ARIN Prefixes per ASN: 7.68
ARIN Region origin ASes announcing only one prefix: 5382
ARIN Region transit ASes present in the Internet Routing Table: 1392
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 746040832
Equivalent to 44 /8s, 119 /16s and 174 /24s
Percentage of available ARIN address space announced: 62.6
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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 81037
Total RIPE prefixes after maximum aggregation: 46057
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74421
Unique aggregates announced from the RIPE address blocks: 48194
RIPE Region origin ASes present in the Internet Routing Table: 15228
RIPE Prefixes per ASN: 4.89
RIPE Region origin ASes announcing only one prefix: 7781
RIPE Region transit ASes present in the Internet Routing Table: 2355
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 456628480
Equivalent to 27 /8s, 55 /16s and 153 /24s
Percentage of available RIPE address space announced: 75.6
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31007
Total LACNIC prefixes after maximum aggregation: 7151
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 29957
Unique aggregates announced from the LACNIC address blocks: 15750
LACNIC Region origin ASes present in the Internet Routing Table: 1409
LACNIC Prefixes per ASN: 21.26
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 241
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 79545344
Equivalent to 4 /8s, 189 /16s and 196 /24s
Percentage of available LACNIC address space announced: 59.3
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7504
Total AfriNIC prefixes after maximum aggregation: 1832
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 5843
Unique aggregates announced from the AfriNIC address blocks: 1819
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.53
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21652992
Equivalent to 1 /8s, 74 /16s and 102 /24s
Percentage of available AfriNIC address space announced: 43.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1759 9484 515 Korea Telecom (KIX)
7545 1575 300 81 TPG Internet Pty Ltd
4755 1399 636 160 TATA Communications formerly
17974 1386 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 486 Sify Limited
17488 949 162 103 Hathway IP Over Cable Interne
4808 922 2012 266 CNCGROUP IP network: China169
18101 920 116 140 Reliance Infocom Ltd Internet
9829 862 729 47 BSNL National Internet Backbo
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 3710 3855 267 bellsouth.net, inc.
4323 2644 1093 404 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1793 698 133 PaeTec Communications, Inc.
20115 1525 1530 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1386 5684 898 AT&T WorldNet Services
2386 1299 554 935 AT&T Data Communications Serv
22773 1273 2864 77 Cox Communications, Inc.
11492 1258 234 76 Cable One
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
6830 501 1763 307 UPC Distribution Services
9116 488 328 31 Goldenlines main autonomous s
9198 462 266 14 Kazakhtelecom Data Network Ad
34984 457 97 137 BILISIM TELEKOM
3292 444 2010 387 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
8551 404 355 38 Bezeq International
12479 404 577 6 Uni2 Autonomous System
702 401 1819 314 UUNET - Commercial IP service
3320 401 7616 350 Deutsche Telekom AG
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 1355 251 165 TVCABLE BOGOTA
28573 1225 954 80 NET Servicos de Comunicao S.A
8151 1197 2596 356 UniNet S.A. de C.V.
6503 1137 355 79 AVANTEL, S.A.
7303 863 460 103 Telecom Argentina Stet-France
14420 604 50 89 ANDINATEL S.A.
22047 567 310 15 VTR PUNTO NET S.A.
3816 497 220 98 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur 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
8452 760 445 11 TEDATA
24863 751 147 37 LINKdotNET AS number
36992 676 361 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
2018 167 277 64 Tertiary Education Network
16637 163 440 89 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 3710 3855 267 bellsouth.net, inc.
4323 2644 1093 404 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1793 698 133 PaeTec Communications, Inc.
4766 1759 9484 515 Korea Telecom (KIX)
23456 1598 398 890 32-bit ASN transition
7545 1575 300 81 TPG Internet Pty Ltd
20115 1525 1530 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
4755 1399 636 160 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2644 2240 Time Warner Telecom
1785 1793 1660 PaeTec Communications, Inc.
19262 1839 1556 Verizon Global Networks
7545 1575 1494 TPG Internet Pty Ltd
6478 1467 1376 AT&T Worldnet Services
17974 1386 1358 PT TELEKOMUNIKASI INDONESIA
4766 1759 1244 Korea Telecom (KIX)
4755 1399 1239 TATA Communications formerly
22773 1273 1196 Cox Communications, Inc.
10620 1355 1190 TVCABLE BOGOTA
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 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /8:27 /9:10 /10:25 /11:70 /12:216
/13:438 /14:761 /15:1359 /16:11446 /17:5579 /18:9249
/19:18844 /20:24170 /21:24466 /22:32331 /23:31201 /24:177766
/25:11 /26:17 /27:24 /28:151 /29:92 /30:43
/31:0 /32:108
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3710 bellsouth.net, inc.
4323 1427 2644 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1086 1105 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1793 PaeTec Communications, Inc.
19262 952 1839 Verizon Global Networks
23456 935 1598 32-bit ASN transition
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:165 2:27 4:13 5:1 8:329 12:2035
13:1 14:353 15:15 16:3 17:8 20:9
22:1 23:1 24:1452 27:539 32:57 33:5
34:2 36:1 37:1 38:689 40:101 41:2316
42:1 44:3 46:513 47:5 49:142 50:56
52:12 55:6 56:2 57:27 58:764 59:481
60:389 61:1043 62:1021 63:1917 64:3731 65:2330
66:4068 67:1756 68:996 69:2879 70:718 71:392
72:1992 73:1 74:2291 75:291 76:330 77:850
78:705 79:435 80:1037 81:817 82:533 83:461
84:642 85:1044 86:530 87:740 88:351 89:1564
90:155 91:3436 92:488 93:1050 94:1139 95:762
96:408 97:248 98:753 99:33 101:22 107:3
108:79 109:846 110:468 111:685 112:302 113:369
114:463 115:625 116:871 117:669 118:631 119:1014
120:237 121:684 122:1604 123:1042 124:1244 125:1211
128:195 129:151 130:165 131:565 132:103 133:20
134:209 135:49 136:213 137:142 138:292 139:125
140:463 141:198 142:344 143:378 144:481 145:51
146:417 147:192 148:608 149:272 150:152 151:230
152:299 153:175 154:2 155:346 156:170 157:312
158:126 159:369 160:313 161:190 162:277 163:149
164:469 165:332 166:601 167:421 168:726 169:148
170:741 171:66 172:2 173:1248 174:513 175:306
176:1 177:4 178:752 180:750 182:386 183:249
184:205 186:958 187:812 188:902 189:1036 190:4338
192:5729 193:4779 194:3489 195:2925 196:1251 197:2
198:3472 199:3718 200:5584 201:1564 202:8044 203:8322
204:4011 205:2321 206:2432 207:2892 208:3869 209:3435
210:2583 211:1326 212:1892 213:1720 214:754 215:61
216:4814 217:1623 218:518 219:372 220:1190 221:430
222:315 223:89
End of report
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