Routing Table Report 04:00 +10GMT Wed 04 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 404181
Prefixes after maximum aggregation: 171836
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195939
Total ASes present in the Internet Routing Table: 40567
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 32971
Origin ASes announcing only one prefix: 15480
Transit ASes present in the Internet Routing Table: 5428
Transit-only ASes present in the Internet Routing Table: 136
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: 579
Unregistered ASNs in the Routing Table: 280
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 2168
Prefixes from 32-bit ASNs in the Routing Table: 5337
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1324
Number of addresses announced to Internet: 2532043600
Equivalent to 150 /8s, 235 /16s and 235 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
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: 171715
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98980
Total APNIC prefixes after maximum aggregation: 32145
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95377
Unique aggregates announced from the APNIC address blocks: 39263
APNIC Region origin ASes present in the Internet Routing Table: 4670
APNIC Prefixes per ASN: 20.42
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 732
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: 642369120
Equivalent to 38 /8s, 73 /16s and 198 /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: 149289
Total ARIN prefixes after maximum aggregation: 75825
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120664
Unique aggregates announced from the ARIN address blocks: 49961
ARIN Region origin ASes present in the Internet Routing Table: 14940
ARIN Prefixes per ASN: 8.08
ARIN Region origin ASes announcing only one prefix: 5692
ARIN Region transit ASes present in the Internet Routing Table: 1569
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: 805296320
Equivalent to 47 /8s, 255 /16s and 216 /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: 100932
Total RIPE prefixes after maximum aggregation: 53274
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 92173
Unique aggregates announced from the RIPE address blocks: 57211
RIPE Region origin ASes present in the Internet Routing Table: 16354
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7954
RIPE Region transit ASes present in the Internet Routing Table: 2631
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: 1468
Number of RIPE addresses announced to Internet: 502134792
Equivalent to 29 /8s, 237 /16s and 248 /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: 40323
Total LACNIC prefixes after maximum aggregation: 8199
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 39880
Unique aggregates announced from the LACNIC address blocks: 19745
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.35
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 296
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: 508
Number of LACNIC addresses announced to Internet: 98751624
Equivalent to 5 /8s, 226 /16s and 212 /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: 8894
Total AfriNIC prefixes after maximum aggregation: 2126
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6949
Unique aggregates announced from the AfriNIC address blocks: 2150
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.19
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 31518720
Equivalent to 1 /8s, 224 /16s and 240 /24s
Percentage of available AfriNIC address space announced: 47.0
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 2494 11109 993 Korea Telecom (KIX)
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1660 301 87 TPG Internet Pty Ltd
4755 1575 386 158 TATA Communications formerly
9583 1237 94 541 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
4808 1103 2050 316 CNCGROUP IP network: China169
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
18101 951 131 160 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
6389 3432 3807 196 bellsouth.net, inc.
7029 3375 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1891 680 129 PaeTec Communications, Inc.
20115 1637 1561 619 Charter Communications
4323 1602 1060 381 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1453 264 746 Mediacom Communications Corp
7018 1279 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 1833 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 677 37 9 FreeNet ISP
34984 674 188 174 BILISIM TELEKOM
12479 656 658 57 Uni2 Autonomous System
20940 651 206 500 Akamai Technologies European
6830 641 1943 412 UPC Distribution Services
8551 575 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG
2578 501 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 1749 1105 61 NET Servicos de Comunicao S.A
6503 1501 418 65 AVANTEL, S.A.
8151 1479 3018 347 UniNet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 700 28 Tim Brasil S.A.
27947 688 74 100 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 568 242 100 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 1291 958 13 TEDATA
24863 849 274 35 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 182 11 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 164 664 82 MTN Network Solutions
29571 160 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 3375 990 155 Windstream Communications Inc
4766 2494 11109 993 Korea Telecom (KIX)
18566 2092 383 179 Covad Communications
1785 1891 680 129 PaeTec Communications, Inc.
8402 1833 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1749 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 3375 3220 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1833 1817 Corbina telecom
1785 1891 1762 PaeTec Communications, Inc.
17974 1788 1725 PT TELEKOMUNIKASI INDONESIA
28573 1749 1688 NET Servicos de Comunicao S.A
10620 1795 1632 TVCABLE BOGOTA
7545 1660 1573 TPG Internet Pty Ltd
4766 2494 1501 Korea Telecom (KIX)
22773 1552 1441 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 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
/13:457 /14:833 /15:1483 /16:12176 /17:6277 /18:10485
/19:20598 /20:28762 /21:29772 /22:40371 /23:37579 /24:211343
/25:1190 /26:1429 /27:790 /28:165 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3037 3375 Windstream Communications Inc
6389 2149 3432 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1810 1833 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1394 1453 Mediacom Communications Corp
6503 1263 1501 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1100 1291 TEDATA
1785 1067 1891 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:755 4:14 6:3 8:395 12:1990
13:1 14:606 15:12 16:3 17:7 20:8
23:161 24:1760 27:1262 31:961 32:58 33:2
34:2 36:8 37:324 38:786 40:120 41:3063
42:132 44:3 46:1463 47:3 49:346 50:535
52:13 54:7 55:8 56:3 57:31 58:959
59:495 60:280 61:1202 62:979 63:1994 64:4172
65:2264 66:4496 67:2018 68:1151 69:3175 70:909
71:466 72:1816 74:2587 75:492 76:314 77:967
78:1007 79:496 80:1209 81:896 82:665 83:549
84:522 85:1194 86:405 87:905 88:343 89:1627
90:297 91:4676 92:519 93:1416 94:1480 95:1167
96:378 97:318 98:880 99:37 100:6 101:167
103:932 106:66 107:180 108:221 109:1265 110:755
111:904 112:446 113:589 114:627 115:778 116:908
117:721 118:905 119:1211 120:334 121:695 122:1668
123:1101 124:1367 125:1264 128:561 129:192 130:256
131:595 132:173 133:21 134:243 135:62 136:212
137:177 138:353 139:145 140:494 141:244 142:386
143:400 144:513 145:66 146:485 147:243 148:761
149:298 150:157 151:176 152:462 153:171 154:7
155:427 156:215 157:374 158:176 159:524 160:342
161:254 162:343 163:189 164:572 165:388 166:561
167:464 168:816 169:127 170:845 171:126 172:4
173:1728 174:578 175:432 176:457 177:619 178:1314
180:1203 181:73 182:776 183:284 184:446 185:1
186:2158 187:1029 188:1190 189:1781 190:5429 192:5999
193:5604 194:4612 195:3594 196:1287 197:124 198:3616
199:4486 200:5806 201:1901 202:8470 203:8590 204:4338
205:2476 206:2750 207:2788 208:4052 209:3586 210:2764
211:1470 212:1918 213:1905 214:885 215:109 216:5078
217:1521 218:540 219:323 220:1231 221:555 222:327
223:332
End of report
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