Routing Table Report 04:00 +10GMT Thu 16 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 338459
Prefixes after maximum aggregation: 152824
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 166544
Total ASes present in the Internet Routing Table: 35491
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 30563
Origin ASes announcing only one prefix: 14928
Transit ASes present in the Internet Routing Table: 4928
Transit-only ASes present in the Internet Routing Table: 120
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: 321
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 951
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 190
Number of addresses announced to Internet: 2339531936
Equivalent to 139 /8s, 114 /16s and 108 /24s
Percentage of available address space announced: 63.1
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.7
Total number of prefixes smaller than registry allocations: 139246
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83358
Total APNIC prefixes after maximum aggregation: 28390
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 80313
Unique aggregates announced from the APNIC address blocks: 34983
APNIC Region origin ASes present in the Internet Routing Table: 4275
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1204
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 574918688
Equivalent to 34 /8s, 68 /16s and 144 /24s
Percentage of available APNIC address space announced: 77.9
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: 136945
Total ARIN prefixes after maximum aggregation: 69916
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 107900
Unique aggregates announced from the ARIN address blocks: 43961
ARIN Region origin ASes present in the Internet Routing Table: 14079
ARIN Prefixes per ASN: 7.66
ARIN Region origin ASes announcing only one prefix: 5397
ARIN Region transit ASes present in the Internet Routing Table: 1495
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 743602304
Equivalent to 44 /8s, 82 /16s and 120 /24s
Percentage of available ARIN address space announced: 62.4
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: 79388
Total RIPE prefixes after maximum aggregation: 45381
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 72900
Unique aggregates announced from the RIPE address blocks: 47095
RIPE Region origin ASes present in the Internet Routing Table: 15123
RIPE Prefixes per ASN: 4.82
RIPE Region origin ASes announcing only one prefix: 7752
RIPE Region transit ASes present in the Internet Routing Table: 2341
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 450982784
Equivalent to 26 /8s, 225 /16s and 115 /24s
Percentage of available RIPE address space announced: 74.7
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, 196608-197631
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: 30904
Total LACNIC prefixes after maximum aggregation: 7096
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 29750
Unique aggregates announced from the LACNIC address blocks: 15447
LACNIC Region origin ASes present in the Internet Routing Table: 1402
LACNIC Prefixes per ASN: 21.22
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78607360
Equivalent to 4 /8s, 175 /16s and 116 /24s
Percentage of available LACNIC address space announced: 58.6
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: 7627
Total AfriNIC prefixes after maximum aggregation: 1923
AfriNIC Deaggregation factor: 3.97
Prefixes being announced from the AfriNIC address blocks: 5938
Unique aggregates announced from the AfriNIC address blocks: 1765
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21616640
Equivalent to 1 /8s, 73 /16s and 216 /24s
Percentage of available AfriNIC address space announced: 42.9
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 1869 9453 519 Korea Telecom (KIX)
7545 1558 299 77 TPG Internet Pty Ltd
4755 1402 650 135 TATA Communications formerly
17974 1335 459 27 PT TELEKOMUNIKASI INDONESIA
24560 1041 312 174 Bharti Airtel Ltd., Telemedia
9583 1039 76 487 Sify Limited
4808 995 1717 272 CNCGROUP IP network: China169
17488 954 157 111 Hathway IP Over Cable Interne
18101 908 116 138 Reliance Infocom Ltd Internet
9829 823 696 31 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 3733 3871 268 bellsouth.net, inc.
4323 2641 1077 399 Time Warner Telecom
19262 1834 4869 282 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
20115 1514 1531 640 Charter Communications
6478 1433 290 49 AT&T Worldnet Services
7018 1359 5652 872 AT&T WorldNet Services
2386 1316 571 933 AT&T Data Communications Serv
22773 1260 2864 74 Cox Communications, Inc.
11492 1246 233 75 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 503 1763 310 UPC Distribution Services
3292 444 2010 386 TDC Tele Danmark
34984 440 96 133 BILISIM TELEKOM
8866 438 133 23 Bulgarian Telecommunication C
9121 435 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Data Network Ad
8551 402 353 46 Bezeq International
702 397 1864 311 UUNET - Commercial IP service
12479 397 577 6 Uni2 Autonomous System
3320 390 7609 343 Deutsche Telekom AG
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
8151 1345 2615 368 UniNet S.A. de C.V.
10620 1343 250 154 TVCABLE BOGOTA
28573 1229 933 79 NET Servicos de Comunicao S.A
6503 1175 355 80 AVANTEL, S.A.
7303 805 440 94 Telecom Argentina Stet-France
14420 584 49 88 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 494 216 101 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 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 1063 445 10 TEDATA
24863 744 147 39 LINKdotNET AS number
36992 655 275 156 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
33776 184 12 14 Starcomms Nigeria Limited
16637 161 440 88 MTN Network Solutions
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 3733 3871 268 bellsouth.net, inc.
4323 2641 1077 399 Time Warner Telecom
4766 1869 9453 519 Korea Telecom (KIX)
19262 1834 4869 282 Verizon Global Networks
1785 1786 697 132 PaeTec Communications, Inc.
7545 1558 299 77 TPG Internet Pty Ltd
20115 1514 1531 640 Charter Communications
6478 1433 290 49 AT&T Worldnet Services
4755 1402 650 135 TATA Communications formerly
7018 1359 5652 872 AT&T WorldNet Services
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 2641 2242 Time Warner Telecom
1785 1786 1654 PaeTec Communications, Inc.
19262 1834 1552 Verizon Global Networks
7545 1558 1481 TPG Internet Pty Ltd
6478 1433 1384 AT&T Worldnet Services
4766 1869 1350 Korea Telecom (KIX)
17974 1335 1308 PT TELEKOMUNIKASI INDONESIA
4755 1402 1267 TATA Communications formerly
10620 1343 1189 TVCABLE BOGOTA
22773 1260 1186 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.39.128.0/19 51504 Telset ltd
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 /8:20 /9:10 /10:25 /11:70 /12:212
/13:430 /14:752 /15:1343 /16:11401 /17:5522 /18:9198
/19:18646 /20:23974 /21:24257 /22:31835 /23:30829 /24:177208
/25:958 /26:1041 /27:561 /28:145 /29:12 /30:2
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2305 3733 bellsouth.net, inc.
4323 1430 2641 Time Warner Telecom
6478 1390 1433 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1203 1246 Cable One
18566 1076 1095 Covad Communications
7011 1070 1173 Citizens Utilities
1785 1059 1786 PaeTec Communications, Inc.
8452 965 1063 TEDATA
6503 960 1175 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:132 2:18 4:13 5:1 8:316 12:2039
13:6 14:93 15:17 16:3 17:8 20:9
24:1426 27:489 32:61 33:5 34:2 36:1
37:1 38:717 40:101 41:2639 42:1 44:3
46:393 47:4 49:41 50:18 52:12 55:5
56:2 57:29 58:857 59:505 60:396 61:1103
62:1024 63:1935 64:3717 65:2320 66:4074 67:1759
68:991 69:2814 70:714 71:389 72:1947 74:2283
75:288 76:320 77:851 78:747 79:436 80:1056
81:798 82:513 83:443 84:629 85:1044 86:497
87:706 88:407 89:1591 90:146 91:3332 92:471
93:1020 94:1127 95:698 96:407 97:246 98:705
99:33 101:3 107:2 108:77 109:791 110:474
111:672 112:310 113:319 114:483 115:636 116:889
117:653 118:609 119:1056 120:198 121:727 122:1572
123:1024 124:1232 125:1212 128:232 129:153 130:170
131:563 132:234 133:20 134:206 135:50 136:212
137:148 138:289 139:110 140:482 141:196 142:351
143:516 144:488 145:54 146:424 147:187 148:638
149:326 150:150 151:230 152:296 153:172 154:3
155:369 156:166 157:310 158:126 159:369 160:315
161:196 162:276 163:163 164:434 165:335 166:470
167:417 168:735 169:150 170:721 171:67 172:2
173:1134 174:474 175:261 176:1 178:647 180:728
182:409 183:243 184:189 186:827 187:764 188:878
189:1012 190:4275 192:5780 193:4795 194:3472 195:2899
196:1185 197:1 198:3534 199:3669 200:5529 201:1587
202:8261 203:8395 204:4051 205:2329 206:2521 207:2961
208:3858 209:3483 210:2556 211:1318 212:1882 213:1705
214:741 215:62 216:4796 217:1623 218:520 219:402
220:1181 221:443 222:342 223:81
End of report
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