Routing Table Report 08:00 +10GMT Mon 24 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 338324
Prefixes after maximum aggregation: 154013
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 169069
Total ASes present in the Internet Routing Table: 35540
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 30742
Origin ASes announcing only one prefix: 14941
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: 339
Unregistered ASNs in the Routing Table: 126
Number of 32-bit ASNs allocated by the RIRs: 1037
Prefixes from 32-bit ASNs in the Routing Table: 1594
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 2476434944
Equivalent to 147 /8s, 155 /16s and 102 /24s
Percentage of available address space announced: 66.8
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: 87.8
Total number of prefixes smaller than registry allocations: 137918
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81443
Total APNIC prefixes after maximum aggregation: 27769
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79068
Unique aggregates announced from the APNIC address blocks: 35422
APNIC Region origin ASes present in the Internet Routing Table: 4253
APNIC Prefixes per ASN: 18.59
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 654
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 582053376
Equivalent to 34 /8s, 177 /16s and 110 /24s
Percentage of available APNIC address space announced: 78.8
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: 135120
Total ARIN prefixes after maximum aggregation: 69241
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107977
Unique aggregates announced from the ARIN address blocks: 44373
ARIN Region origin ASes present in the Internet Routing Table: 14054
ARIN Prefixes per ASN: 7.68
ARIN Region origin ASes announcing only one prefix: 5372
ARIN Region transit ASes present in the Internet Routing Table: 1393
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 746035712
Equivalent to 44 /8s, 119 /16s and 154 /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: 81012
Total RIPE prefixes after maximum aggregation: 46035
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 74405
Unique aggregates announced from the RIPE address blocks: 48099
RIPE Region origin ASes present in the Internet Routing Table: 15221
RIPE Prefixes per ASN: 4.89
RIPE Region origin ASes announcing only one prefix: 7774
RIPE Region transit ASes present in the Internet Routing Table: 2358
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 456152320
Equivalent to 27 /8s, 48 /16s and 85 /24s
Percentage of available RIPE address space announced: 75.5
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: 31006
Total LACNIC prefixes after maximum aggregation: 7143
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 29970
Unique aggregates announced from the LACNIC address blocks: 15733
LACNIC Region origin ASes present in the Internet Routing Table: 1408
LACNIC Prefixes per ASN: 21.29
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 79533312
Equivalent to 4 /8s, 189 /16s and 149 /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: 7466
Total AfriNIC prefixes after maximum aggregation: 1954
AfriNIC Deaggregation factor: 3.82
Prefixes being announced from the AfriNIC address blocks: 5786
Unique aggregates announced from the AfriNIC address blocks: 1813
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21702656
Equivalent to 1 /8s, 75 /16s and 40 /24s
Percentage of available AfriNIC address space announced: 43.1
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 1757 9484 513 Korea Telecom (KIX)
7545 1573 299 80 TPG Internet Pty Ltd
4755 1399 636 160 TATA Communications formerly
17974 1378 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd., Telemedia
9583 1074 81 510 Sify Limited
17488 949 162 103 Hathway IP Over Cable Interne
4808 922 2012 266 CNCGROUP IP network: China169
18101 919 116 139 Reliance Infocom Ltd Internet
9829 863 729 48 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 2646 1093 404 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1792 697 132 PaeTec Communications, Inc.
20115 1525 1530 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1385 5684 897 AT&T WorldNet Services
2386 1299 554 935 AT&T Data Communications Serv
22773 1274 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 499 1763 305 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
702 403 1835 316 UUNET - Commercial IP service
3320 399 7616 348 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 1334 250 169 TVCABLE BOGOTA
28573 1222 954 80 NET Servicos de Comunicao S.A
8151 1198 2595 360 UniNet S.A. de C.V.
6503 1138 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 756 445 11 TEDATA
24863 751 147 37 LINKdotNET AS number
36992 667 301 143 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 191 12 13 Starcomms Nigeria Limited
2018 167 277 64 Tertiary Education Network
16637 162 440 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 2646 1093 404 Time Warner Telecom
19262 1839 4943 283 Verizon Global Networks
1785 1792 697 132 PaeTec Communications, Inc.
4766 1757 9484 513 Korea Telecom (KIX)
23456 1594 394 880 32-bit ASN transition
7545 1573 299 80 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 2646 2242 Time Warner Telecom
1785 1792 1660 PaeTec Communications, Inc.
19262 1839 1556 Verizon Global Networks
7545 1573 1493 TPG Internet Pty Ltd
6478 1467 1376 AT&T Worldnet Services
17974 1378 1350 PT TELEKOMUNIKASI INDONESIA
4766 1757 1244 Korea Telecom (KIX)
4755 1399 1239 TATA Communications formerly
22773 1274 1197 Cox Communications, Inc.
11492 1258 1182 Cable One
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
53562 UNALLOCATED 8.19.94.0/24 3356 Level 3 Communicatio
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
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 /12:215
/13:437 /14:761 /15:1359 /16:11450 /17:5584 /18:9271
/19:18851 /20:24187 /21:24443 /22:32310 /23:31183 /24:177692
/25:11 /26:17 /27:25 /28:149 /29:94 /30:44
/31:0 /32:109
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3710 bellsouth.net, inc.
4323 1428 2646 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1225 1334 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1086 1105 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1792 PaeTec Communications, Inc.
19262 952 1839 Verizon Global Networks
23456 937 1594 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 2:23 4:13 5:1 8:329 12:2027
13:1 14:353 15:15 16:3 17:8 20:8
23:1 24:1451 27:547 32:57 33:5 34:2
36:1 37:1 38:689 40:100 41:2290 42:1
44:3 46:512 47:5 49:142 50:56 52:12
55:6 56:2 57:26 58:764 59:481 60:389
61:1020 62:1016 63:1918 64:3728 65:2329 66:4071
67:1759 68:996 69:2879 70:718 71:392 72:1991
73:1 74:2290 75:291 76:327 77:852 78:708
79:437 80:1036 81:815 82:533 83:459 84:642
85:1043 86:530 87:737 88:350 89:1564 90:154
91:3424 92:493 93:1051 94:1150 95:763 96:408
97:248 98:752 99:33 101:18 107:3 108:79
109:853 110:466 111:685 112:301 113:364 114:463
115:629 116:869 117:669 118:630 119:1029 120:238
121:684 122:1604 123:1043 124:1243 125:1210 128:195
129:151 130:165 131:564 132:102 133:20 134:209
135:50 136:213 137:142 138:292 139:125 140:462
141:198 142:344 143:376 144:482 145:52 146:407
147:192 148:607 149:272 150:149 151:230 152:300
153:175 154:2 155:346 156:170 157:312 158:125
159:369 160:312 161:190 162:275 163:149 164:468
165:332 166:600 167:421 168:726 169:148 170:741
171:69 172:2 173:1247 174:513 175:306 176:1
177:4 178:751 180:749 182:382 183:249 184:205
186:957 187:825 188:909 189:1036 190:4339 192:5727
193:4774 194:3485 195:2925 196:1248 197:2 198:3473
199:3723 200:5577 201:1575 202:8050 203:8324 204:4013
205:2318 206:2432 207:2893 208:3864 209:3433 210:2583
211:1326 212:1881 213:1713 214:750 215:62 216:4818
217:1625 218:522 219:372 220:1191 221:430 222:315
223:87
End of report
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