Routing Table Report 04:00 +10GMT Mon 19 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 401157
Prefixes after maximum aggregation: 170975
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194931
Total ASes present in the Internet Routing Table: 40376
Prefixes per ASN: 9.94
Origin-only ASes present in the Internet Routing Table: 32882
Origin ASes announcing only one prefix: 15479
Transit ASes present in the Internet Routing Table: 5409
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 411
Unregistered ASNs in the Routing Table: 191
Number of 32-bit ASNs allocated by the RIRs: 2322
Number of 32-bit ASNs visible in the Routing Table: 2085
Prefixes from 32-bit ASNs in the Routing Table: 5044
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 696
Number of addresses announced to Internet: 2526897552
Equivalent to 150 /8s, 157 /16s and 101 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 170276
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98370
Total APNIC prefixes after maximum aggregation: 31951
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94761
Unique aggregates announced from the APNIC address blocks: 39277
APNIC Region origin ASes present in the Internet Routing Table: 4665
APNIC Prefixes per ASN: 20.31
APNIC Region origin ASes announcing only one prefix: 1232
APNIC Region transit ASes present in the Internet Routing Table: 725
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 166
Number of APNIC addresses announced to Internet: 640815712
Equivalent to 38 /8s, 50 /16s and 18 /24s
Percentage of available APNIC address space announced: 81.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 148879
Total ARIN prefixes after maximum aggregation: 75706
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120406
Unique aggregates announced from the ARIN address blocks: 49849
ARIN Region origin ASes present in the Internet Routing Table: 14937
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1570
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 806586112
Equivalent to 48 /8s, 19 /16s and 135 /24s
Percentage of available ARIN address space announced: 64.1
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, 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: 100848
Total RIPE prefixes after maximum aggregation: 52967
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92334
Unique aggregates announced from the RIPE address blocks: 57191
RIPE Region origin ASes present in the Internet Routing Table: 16349
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 7974
RIPE Region transit ASes present in the Internet Routing Table: 2626
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1416
Number of RIPE addresses announced to Internet: 502117128
Equivalent to 29 /8s, 237 /16s and 179 /24s
Percentage of available RIPE address space announced: 80.9
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: 39081
Total LACNIC prefixes after maximum aggregation: 8108
LACNIC Deaggregation factor: 4.82
Prefixes being announced from the LACNIC address blocks: 38835
Unique aggregates announced from the LACNIC address blocks: 19654
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 24.72
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 291
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 482
Number of LACNIC addresses announced to Internet: 98502280
Equivalent to 5 /8s, 223 /16s and 6 /24s
Percentage of available LACNIC address space announced: 65.2
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: 8674
Total AfriNIC prefixes after maximum aggregation: 2086
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6800
Unique aggregates announced from the AfriNIC address blocks: 2171
AfriNIC Region origin ASes present in the Internet Routing Table: 517
AfriNIC Prefixes per ASN: 13.15
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31473664
Equivalent to 1 /8s, 224 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 46.9
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 2499 11110 997 Korea Telecom (KIX)
17974 1743 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1653 303 88 TPG Internet Pty Ltd
4755 1569 386 160 TATA Communications formerly
9583 1202 91 509 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1162 1062 11 Vietel Corporation
4808 1096 2048 312 CNCGROUP IP network: China169
24560 1015 384 166 Bharti Airtel Ltd., Telemedia
18101 947 130 160 Reliance Infocom Ltd Internet
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
7029 3381 1006 158 Windstream Communications Inc
6389 3374 3807 197 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
1785 1882 680 127 PaeTec Communications, Inc.
20115 1631 1558 628 Charter Communications
4323 1602 1060 382 Time Warner Telecom
22773 1547 2910 111 Cox Communications, Inc.
30036 1398 252 744 Mediacom Communications Corp
7018 1276 9776 835 AT&T WorldNet Services
11492 1164 212 415 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
8402 1817 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
34984 664 188 172 BILISIM TELEKOM
6830 640 1943 411 UPC Distribution Services
12479 638 653 67 Uni2 Autonomous System
20940 628 201 487 Akamai Technologies European
8551 574 360 81 Bezeq International
31148 539 37 9 FreeNet ISP
3320 533 8442 399 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
10620 1801 329 130 TVCABLE BOGOTA
28573 1721 1094 58 NET Servicos de Comunicao S.A
8151 1479 3014 346 UniNet S.A. de C.V.
7303 1331 823 185 Telecom Argentina Stet-France
26615 899 672 33 Tim Brasil S.A.
27947 680 68 108 Telconet S.A
11172 635 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 560 240 89 Empresa Nacional de Telecomun
6503 558 418 65 AVANTEL, 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 1252 958 13 TEDATA
24863 842 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 182 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
29571 155 15 16 Ci Telecom Autonomous system
16637 152 641 76 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
7029 3381 1006 158 Windstream Communications Inc
6389 3374 3807 197 bellsouth.net, inc.
4766 2499 11110 997 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1882 680 127 PaeTec Communications, Inc.
8402 1817 544 16 Corbina telecom
10620 1801 329 130 TVCABLE BOGOTA
17974 1743 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1721 1094 58 NET Servicos de Comunicao S.A
7545 1653 303 88 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3374 3177 bellsouth.net, inc.
18566 2093 1914 Covad Communications
8402 1817 1801 Corbina telecom
1785 1882 1755 PaeTec Communications, Inc.
17974 1743 1707 PT TELEKOMUNIKASI INDONESIA
10620 1801 1671 TVCABLE BOGOTA
28573 1721 1663 NET Servicos de Comunicao S.A
7545 1653 1565 TPG Internet Pty Ltd
4766 2499 1502 Korea Telecom (KIX)
22773 1547 1436 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
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /9:12 /10:28 /11:81 /12:235
/13:458 /14:821 /15:1474 /16:12184 /17:6236 /18:10419
/19:20507 /20:28665 /21:29525 /22:39932 /23:37295 /24:209541
/25:1214 /26:1453 /27:793 /28:168 /29:61 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3037 3381 Windstream Communications Inc
6389 2089 3374 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1794 1817 Corbina telecom
10620 1698 1801 TVCABLE BOGOTA
30036 1347 1398 Mediacom Communications Corp
11492 1127 1164 Cable One
1785 1065 1882 PaeTec Communications, Inc.
8452 1064 1252 TEDATA
7011 1038 1152 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:795 4:14 6:3 8:394 12:1973
13:1 14:596 15:11 16:3 17:7 20:8
23:144 24:1753 27:1241 31:924 32:62 33:2
34:2 36:8 37:279 38:775 40:122 41:2954
42:128 44:3 46:1417 47:3 49:343 50:515
52:13 54:5 55:6 56:3 57:37 58:954
59:495 60:278 61:1194 62:979 63:2016 64:4164
65:2285 66:4505 67:2001 68:1159 69:3169 70:899
71:389 72:1780 74:2587 75:489 76:319 77:966
78:979 79:495 80:1219 81:891 82:629 83:554
84:584 85:1186 86:727 87:910 88:335 89:1565
90:288 91:4597 92:517 93:1493 94:1390 95:1122
96:374 97:316 98:819 99:38 100:6 101:203
103:901 106:64 107:173 108:204 109:1537 110:743
111:880 112:442 113:560 114:635 115:776 116:868
117:723 118:906 119:1205 120:336 121:694 122:1627
123:1089 124:1364 125:1276 128:546 129:188 130:263
131:592 132:170 133:21 134:241 135:63 136:212
137:186 138:275 139:145 140:494 141:241 142:391
143:417 144:499 145:69 146:488 147:243 148:718
149:300 150:158 151:176 152:455 153:171 154:7
155:427 156:212 157:379 158:163 159:521 160:327
161:246 162:343 163:186 164:533 165:395 166:563
167:462 168:801 169:148 170:839 171:121 172:4
173:1716 174:596 175:434 176:417 177:569 178:1286
180:1132 181:73 182:790 183:276 184:442 185:1
186:2132 187:844 188:1060 189:1209 190:5541 192:5991
193:5592 194:4562 195:3647 196:1269 197:176 198:3620
199:4464 200:5739 201:1632 202:8427 203:8596 204:4352
205:2470 206:2738 207:2799 208:4069 209:3593 210:2765
211:1463 212:1974 213:1898 214:860 215:106 216:5048
217:1524 218:540 219:339 220:1229 221:552 222:324
223:324
End of report
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