Routing Table Report 04:00 +10GMT Fri 28 Jan, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 343235
Prefixes after maximum aggregation: 154763
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 169371
Total ASes present in the Internet Routing Table: 35725
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 30793
Origin ASes announcing only one prefix: 14956
Transit ASes present in the Internet Routing Table: 4932
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 318
Unregistered ASNs in the Routing Table: 126
Number of 32-bit ASNs allocated by the RIRs: 1043
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 214
Number of addresses announced to Internet: 2349458240
Equivalent to 140 /8s, 9 /16s and 227 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.5
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: 141194
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85325
Total APNIC prefixes after maximum aggregation: 28797
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82104
Unique aggregates announced from the APNIC address blocks: 35519
APNIC Region origin ASes present in the Internet Routing Table: 4309
APNIC Prefixes per ASN: 19.05
APNIC Region origin ASes announcing only one prefix: 1215
APNIC Region transit ASes present in the Internet Routing Table: 691
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 584292128
Equivalent to 34 /8s, 211 /16s and 151 /24s
Percentage of available APNIC address space announced: 79.2
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: 137972
Total ARIN prefixes after maximum aggregation: 70659
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108895
Unique aggregates announced from the ARIN address blocks: 44424
ARIN Region origin ASes present in the Internet Routing Table: 14148
ARIN Prefixes per ASN: 7.70
ARIN Region origin ASes announcing only one prefix: 5408
ARIN Region transit ASes present in the Internet Routing Table: 1471
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 751218816
Equivalent to 44 /8s, 198 /16s and 176 /24s
Percentage of available ARIN address space announced: 63.1
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: 80809
Total RIPE prefixes after maximum aggregation: 46127
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 74256
Unique aggregates announced from the RIPE address blocks: 48286
RIPE Region origin ASes present in the Internet Routing Table: 15234
RIPE Prefixes per ASN: 4.87
RIPE Region origin ASes announcing only one prefix: 7775
RIPE Region transit ASes present in the Internet Routing Table: 2367
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 456762176
Equivalent to 27 /8s, 57 /16s and 163 /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: 31560
Total LACNIC prefixes after maximum aggregation: 7238
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30313
Unique aggregates announced from the LACNIC address blocks: 15785
LACNIC Region origin ASes present in the Internet Routing Table: 1421
LACNIC Prefixes per ASN: 21.33
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80173184
Equivalent to 4 /8s, 199 /16s and 88 /24s
Percentage of available LACNIC address space announced: 59.7
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: 7349
Total AfriNIC prefixes after maximum aggregation: 1823
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5805
Unique aggregates announced from the AfriNIC address blocks: 1795
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21660672
Equivalent to 1 /8s, 74 /16s and 132 /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 1913 9485 524 Korea Telecom (KIX)
7545 1589 299 79 TPG Internet Pty Ltd
4755 1401 636 159 TATA Communications formerly
17974 1390 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 181 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 1028 2108 287 CNCGROUP IP network: China169
17488 950 162 103 Hathway IP Over Cable Interne
18101 923 117 142 Reliance Infocom Ltd Internet
9829 880 746 42 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3709 3855 265 bellsouth.net, inc.
4323 2629 1077 403 Time Warner Telecom
19262 1841 4943 285 Verizon Global Networks
1785 1788 697 134 PaeTec Communications, Inc.
20115 1514 1529 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
7018 1358 6673 874 AT&T WorldNet Services
2386 1297 553 933 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1270 235 71 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6830 515 1764 319 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 458 97 137 BILISIM TELEKOM
3292 445 2011 388 TDC Tele Danmark
8866 438 133 23 Bulgarian Telecommunication C
12479 413 577 6 Uni2 Autonomous System
3320 403 7619 352 Deutsche Telekom AG
8551 402 353 46 Bezeq International
702 396 1816 309 UUNET - Commercial IP service
20940 392 90 302 Akamai Technologies European
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1357 252 165 TVCABLE BOGOTA
8151 1327 2619 355 UniNet S.A. de C.V.
28573 1245 961 82 NET Servicos de Comunicao S.A
6503 1148 355 78 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 611 54 88 CORPORACION NACIONAL DE TELEC
22047 566 310 15 VTR PUNTO NET S.A.
3816 526 222 99 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 456 34 31 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 810 445 11 TEDATA
24863 761 147 39 LINKdotNET AS number
36992 643 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 161 440 90 MTN Network Solutions
36874 139 24 6 Cybersmart
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3709 3855 265 bellsouth.net, inc.
4323 2629 1077 403 Time Warner Telecom
4766 1913 9485 524 Korea Telecom (KIX)
19262 1841 4943 285 Verizon Global Networks
1785 1788 697 134 PaeTec Communications, Inc.
7545 1589 299 79 TPG Internet Pty Ltd
20115 1514 1529 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
4755 1401 636 159 TATA Communications formerly
17974 1390 467 27 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2629 2226 Time Warner Telecom
1785 1788 1654 PaeTec Communications, Inc.
19262 1841 1556 Verizon Global Networks
7545 1589 1510 TPG Internet Pty Ltd
6478 1474 1402 AT&T Worldnet Services
4766 1913 1389 Korea Telecom (KIX)
17974 1390 1363 PT TELEKOMUNIKASI INDONESIA
4755 1401 1242 TATA Communications formerly
11492 1270 1199 Cable One
22773 1274 1197 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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 4323 Time Warner Telecom
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
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:10 /10:26 /11:70 /12:215
/13:441 /14:764 /15:1359 /16:11484 /17:5594 /18:9264
/19:18948 /20:24240 /21:24599 /22:32547 /23:31459 /24:179395
/25:978 /26:1062 /27:577 /28:158 /29:16 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1428 1474 AT&T Worldnet Services
4323 1418 2629 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1226 1270 Cable One
18566 1091 1110 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1788 PaeTec Communications, Inc.
19262 954 1841 Verizon Global Networks
6503 933 1148 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:32 4:13 5:1 8:330 12:2030
13:1 14:378 15:15 16:3 17:8 20:9
23:1 24:1463 27:551 32:61 33:5 34:2
36:1 37:1 38:693 40:101 41:2297 42:1
44:3 46:510 47:5 49:143 50:74 52:12
55:6 56:2 57:30 58:871 59:483 60:391
61:1133 62:1021 63:1923 64:3760 65:2333 66:4067
67:1752 68:996 69:2870 70:717 71:392 72:1987
73:1 74:2299 75:293 76:328 77:852 78:709
79:435 80:1040 81:794 82:526 83:466 84:641
85:1042 86:532 87:722 88:353 89:1580 90:159
91:3420 92:492 93:1041 94:1155 95:780 96:413
97:249 98:757 99:33 101:25 107:3 108:81
109:854 110:469 111:695 112:312 113:355 114:498
115:633 116:885 117:672 118:646 119:1019 120:240
121:702 122:1605 123:1050 124:1267 125:1212 128:247
129:157 130:174 131:570 132:110 133:20 134:218
135:49 136:216 137:147 138:293 139:120 140:488
141:198 142:364 143:378 144:485 145:51 146:425
147:194 148:626 149:273 150:152 151:230 152:303
153:175 154:3 155:346 156:174 157:341 158:129
159:376 160:314 161:203 162:277 163:158 164:482
165:335 166:481 167:422 168:749 169:148 170:747
171:66 172:2 173:1260 174:517 175:312 176:1
177:4 178:757 180:763 182:397 183:251 184:207
186:962 187:795 188:900 189:1031 190:4435 192:5780
193:4799 194:3490 195:2933 196:1170 197:2 198:3551
199:3741 200:5588 201:1575 202:8291 203:8412 204:4090
205:2347 206:2531 207:2967 208:3881 209:3476 210:2640
211:1332 212:1858 213:1693 214:753 215:62 216:4821
217:1624 218:542 219:374 220:1198 221:447 222:347
223:92
End of report
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