Routing Table Report 04:00 +10GMT Fri 06 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 404407
Prefixes after maximum aggregation: 171880
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196060
Total ASes present in the Internet Routing Table: 40601
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 32986
Origin ASes announcing only one prefix: 15463
Transit ASes present in the Internet Routing Table: 5434
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 654
Unregistered ASNs in the Routing Table: 290
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 2181
Prefixes from 32-bit ASNs in the Routing Table: 5358
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1384
Number of addresses announced to Internet: 2533771344
Equivalent to 151 /8s, 6 /16s and 72 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
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: 171832
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99062
Total APNIC prefixes after maximum aggregation: 32148
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95450
Unique aggregates announced from the APNIC address blocks: 39289
APNIC Region origin ASes present in the Internet Routing Table: 4673
APNIC Prefixes per ASN: 20.43
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 731
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 170
Number of APNIC addresses announced to Internet: 642860384
Equivalent to 38 /8s, 81 /16s and 69 /24s
Percentage of available APNIC address space announced: 81.5
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: 149341
Total ARIN prefixes after maximum aggregation: 75838
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120702
Unique aggregates announced from the ARIN address blocks: 49980
ARIN Region origin ASes present in the Internet Routing Table: 14948
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5684
ARIN Region transit ASes present in the Internet Routing Table: 1571
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: 17
Number of ARIN addresses announced to Internet: 805771968
Equivalent to 48 /8s, 7 /16s and 26 /24s
Percentage of available ARIN address space announced: 64.0
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: 100920
Total RIPE prefixes after maximum aggregation: 53288
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 92146
Unique aggregates announced from the RIPE address blocks: 57161
RIPE Region origin ASes present in the Internet Routing Table: 16358
RIPE Prefixes per ASN: 5.63
RIPE Region origin ASes announcing only one prefix: 7951
RIPE Region transit ASes present in the Internet Routing Table: 2632
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1477
Number of RIPE addresses announced to Internet: 502216200
Equivalent to 29 /8s, 239 /16s and 54 /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: 40407
Total LACNIC prefixes after maximum aggregation: 8231
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39963
Unique aggregates announced from the LACNIC address blocks: 19766
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 25.44
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 295
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 512
Number of LACNIC addresses announced to Internet: 98750344
Equivalent to 5 /8s, 226 /16s and 207 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8870
Total AfriNIC prefixes after maximum aggregation: 2099
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6922
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31455488
Equivalent to 1 /8s, 223 /16s and 249 /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 2480 11110 997 Korea Telecom (KIX)
17974 1772 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1660 301 87 TPG Internet Pty Ltd
4755 1575 386 157 TATA Communications formerly
9583 1237 94 541 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
4808 1105 2050 316 CNCGROUP IP network: China169
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
18101 947 131 159 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
6389 3432 3807 196 bellsouth.net, inc.
7029 3381 990 156 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1893 680 129 PaeTec Communications, Inc.
20115 1635 1560 618 Charter Communications
4323 1599 1060 381 Time Warner Telecom
22773 1568 2910 111 Cox Communications, Inc.
30036 1457 264 742 Mediacom Communications Corp
7018 1278 9774 828 AT&T WorldNet Services
11492 1185 216 365 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 1812 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 675 188 172 BILISIM TELEKOM
12479 656 658 57 Uni2 Autonomous System
20940 651 206 500 Akamai Technologies European
6830 641 1943 412 UPC Distribution Services
8551 574 360 81 Bezeq International
3320 533 8442 399 Deutsche Telekom AG
2578 502 33 7 Demos, Moscow, Russia
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 1795 327 163 TVCABLE BOGOTA
28573 1770 1105 61 NET Servicos de Comunicao S.A
6503 1531 418 64 AVANTEL, S.A.
8151 1481 2998 354 UniNet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 896 701 29 Tim Brasil S.A.
27947 689 74 100 Telconet S.A
11172 637 107 74 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 570 242 100 Empresa Nacional de Telecomun
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 1303 958 13 TEDATA
24863 849 274 35 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
33776 198 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 163 664 82 MTN Network Solutions
29571 161 15 16 Ci Telecom Autonomous system
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 3432 3807 196 bellsouth.net, inc.
7029 3381 990 156 Windstream Communications Inc
4766 2480 11110 997 Korea Telecom (KIX)
18566 2092 383 179 Covad Communications
1785 1893 680 129 PaeTec Communications, Inc.
8402 1812 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1772 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1770 1105 61 NET Servicos de Comunicao S.A
7545 1660 301 87 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
7029 3381 3225 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1812 1796 Corbina telecom
1785 1893 1764 PaeTec Communications, Inc.
17974 1772 1709 PT TELEKOMUNIKASI INDONESIA
28573 1770 1709 NET Servicos de Comunicao S.A
10620 1795 1632 TVCABLE BOGOTA
7545 1660 1573 TPG Internet Pty Ltd
4766 2480 1483 Korea Telecom (KIX)
6503 1531 1467 AVANTEL, S.A.
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 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 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,
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
/13:459 /14:833 /15:1483 /16:12181 /17:6272 /18:10498
/19:20605 /20:28807 /21:29779 /22:40412 /23:37552 /24:211496
/25:1184 /26:1429 /27:784 /28:163 /29:59 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3040 3381 Windstream Communications Inc
6389 2149 3432 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1789 1812 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1398 1457 Mediacom Communications Corp
6503 1290 1531 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1112 1303 TEDATA
1785 1067 1893 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:532 2:757 4:14 6:3 8:396 12:1998
13:1 14:602 15:12 16:3 17:7 20:8
23:161 24:1767 27:1263 31:963 32:58 33:2
34:2 36:8 37:320 38:787 40:120 41:3100
42:132 44:3 46:1468 47:3 49:350 50:535
52:13 54:7 55:9 56:3 57:31 58:959
59:494 60:281 61:1201 62:971 63:1996 64:4168
65:2263 66:4498 67:2019 68:1151 69:3174 70:908
71:466 72:1834 74:2600 75:492 76:313 77:968
78:1006 79:497 80:1208 81:900 82:661 83:548
84:490 85:1194 86:403 87:908 88:345 89:1627
90:297 91:4680 92:519 93:1410 94:1475 95:1134
96:378 97:318 98:876 99:37 100:6 101:167
103:940 106:74 107:180 108:226 109:1268 110:757
111:907 112:446 113:591 114:635 115:796 116:911
117:721 118:903 119:1210 120:341 121:695 122:1668
123:1104 124:1365 125:1257 128:559 129:192 130:257
131:594 132:173 133:21 134:242 135:62 136:213
137:177 138:353 139:145 140:493 141:244 142:386
143:398 144:512 145:66 146:482 147:241 148:765
149:297 150:156 151:176 152:462 153:172 154:7
155:429 156:216 157:379 158:175 159:524 160:343
161:254 162:347 163:189 164:572 165:388 166:562
167:464 168:820 169:127 170:845 171:126 172:4
173:1733 174:574 175:430 176:459 177:644 178:1314
180:1186 181:73 182:785 183:284 184:451 185:1
186:2166 187:1027 188:1184 189:1788 190:5452 192:5992
193:5599 194:4615 195:3599 196:1279 197:120 198:3625
199:4490 200:5788 201:1904 202:8467 203:8591 204:4344
205:2454 206:2745 207:2791 208:4063 209:3581 210:2748
211:1475 212:1994 213:1905 214:894 215:109 216:5071
217:1520 218:542 219:323 220:1227 221:554 222:323
223:331
End of report
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