Routing Table Report 04:00 +10GMT Wed 21 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 402139
Prefixes after maximum aggregation: 171167
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195011
Total ASes present in the Internet Routing Table: 40439
Prefixes per ASN: 9.94
Origin-only ASes present in the Internet Routing Table: 32903
Origin ASes announcing only one prefix: 15484
Transit ASes present in the Internet Routing Table: 5435
Transit-only ASes present in the Internet Routing Table: 143
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: 432
Unregistered ASNs in the Routing Table: 201
Number of 32-bit ASNs allocated by the RIRs: 2323
Number of 32-bit ASNs visible in the Routing Table: 2101
Prefixes from 32-bit ASNs in the Routing Table: 5124
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 800
Number of addresses announced to Internet: 2527205264
Equivalent to 150 /8s, 162 /16s and 23 /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: 171007
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98406
Total APNIC prefixes after maximum aggregation: 31988
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94808
Unique aggregates announced from the APNIC address blocks: 39333
APNIC Region origin ASes present in the Internet Routing Table: 4672
APNIC Prefixes per ASN: 20.29
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 727
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: 640840288
Equivalent to 38 /8s, 50 /16s and 114 /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: 148978
Total ARIN prefixes after maximum aggregation: 75779
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120465
Unique aggregates announced from the ARIN address blocks: 49878
ARIN Region origin ASes present in the Internet Routing Table: 14942
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1577
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: 806628864
Equivalent to 48 /8s, 20 /16s and 46 /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: 101273
Total RIPE prefixes after maximum aggregation: 53014
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92660
Unique aggregates announced from the RIPE address blocks: 57081
RIPE Region origin ASes present in the Internet Routing Table: 16355
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 7973
RIPE Region transit ASes present in the Internet Routing Table: 2643
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: 1429
Number of RIPE addresses announced to Internet: 502147336
Equivalent to 29 /8s, 238 /16s and 41 /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: 39128
Total LACNIC prefixes after maximum aggregation: 8107
LACNIC Deaggregation factor: 4.83
Prefixes being announced from the LACNIC address blocks: 38858
Unique aggregates announced from the LACNIC address blocks: 19626
LACNIC Region origin ASes present in the Internet Routing Table: 1577
LACNIC Prefixes per ASN: 24.64
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 290
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 485
Number of LACNIC addresses announced to Internet: 98515592
Equivalent to 5 /8s, 223 /16s and 58 /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: 8947
Total AfriNIC prefixes after maximum aggregation: 2111
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 7032
Unique aggregates announced from the AfriNIC address blocks: 2208
AfriNIC Region origin ASes present in the Internet Routing Table: 525
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31511552
Equivalent to 1 /8s, 224 /16s and 212 /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 2497 11110 996 Korea Telecom (KIX)
17974 1741 500 62 PT TELEKOMUNIKASI INDONESIA
7545 1654 303 86 TPG Internet Pty Ltd
4755 1569 386 160 TATA Communications formerly
9583 1238 94 536 Sify Limited
9829 1184 1001 30 BSNL National Internet Backbo
7552 1165 1062 11 Vietel Corporation
4808 1096 2048 312 CNCGROUP IP network: China169
24560 1015 384 166 Bharti Airtel Ltd., Telemedia
18101 948 130 160 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 3378 1006 155 Windstream Communications Inc
6389 3374 3807 199 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
1785 1883 680 128 PaeTec Communications, Inc.
20115 1633 1558 628 Charter Communications
4323 1603 1060 382 Time Warner Telecom
22773 1545 2910 111 Cox Communications, Inc.
30036 1399 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 1780 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
31148 670 37 9 FreeNet ISP
34984 665 188 172 BILISIM TELEKOM
6830 641 1943 412 UPC Distribution Services
12479 640 651 55 Uni2 Autonomous System
20940 627 201 487 Akamai Technologies European
8551 576 360 81 Bezeq International
3320 532 8441 398 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 1804 329 130 TVCABLE BOGOTA
28573 1696 1099 60 NET Servicos de Comunicao S.A
8151 1484 3017 348 UniNet S.A. de C.V.
7303 1346 824 189 Telecom Argentina Stet-France
26615 900 676 31 Tim Brasil S.A.
27947 676 68 109 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
6503 559 418 65 AVANTEL, S.A.
3816 558 239 96 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 1264 958 13 TEDATA
24863 843 274 37 LINKdotNET AS number
6713 488 649 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
15399 193 29 12 Wananchi Online Limited
24835 177 80 8 RAYA Telecom - Egypt
33776 162 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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 3378 1006 155 Windstream Communications Inc
6389 3374 3807 199 bellsouth.net, inc.
4766 2497 11110 996 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1883 680 128 PaeTec Communications, Inc.
10620 1804 329 130 TVCABLE BOGOTA
8402 1780 544 16 Corbina telecom
17974 1741 500 62 PT TELEKOMUNIKASI INDONESIA
28573 1696 1099 60 NET Servicos de Comunicao S.A
7545 1654 303 86 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 3175 bellsouth.net, inc.
18566 2093 1914 Covad Communications
8402 1780 1764 Corbina telecom
1785 1883 1755 PaeTec Communications, Inc.
17974 1741 1679 PT TELEKOMUNIKASI INDONESIA
10620 1804 1674 TVCABLE BOGOTA
28573 1696 1636 NET Servicos de Comunicao S.A
7545 1654 1568 TPG Internet Pty Ltd
4766 2497 1501 Korea Telecom (KIX)
22773 1545 1434 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 /16:12180 /17:6250 /18:10468
/19:20525 /20:28656 /21:29564 /22:40075 /23:37373 /24:210185
/25:1221 /26:1455 /27:796 /28:169 /29:59 /30:17
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3038 3378 Windstream Communications Inc
6389 2089 3374 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1757 1780 Corbina telecom
10620 1701 1804 TVCABLE BOGOTA
30036 1347 1399 Mediacom Communications Corp
11492 1127 1164 Cable One
8452 1074 1264 TEDATA
1785 1065 1883 PaeTec Communications, Inc.
7011 1037 1151 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:528 2:762 4:14 6:3 8:394 12:1974
13:1 14:606 15:12 16:3 17:7 20:8
23:144 24:1751 27:1247 31:931 32:62 33:2
34:2 36:8 37:291 38:778 40:122 41:3120
42:128 44:3 46:1431 47:3 49:339 50:515
52:13 54:5 55:10 56:3 57:37 58:958
59:495 60:278 61:1199 62:982 63:2014 64:4194
65:2281 66:4503 67:2003 68:1163 69:3179 70:900
71:389 72:1779 74:2584 75:491 76:320 77:965
78:983 79:496 80:1239 81:903 82:648 83:553
84:593 85:1197 86:724 87:917 88:348 89:1611
90:294 91:4616 92:519 93:1488 94:1453 95:1129
96:375 97:316 98:797 99:38 100:6 101:151
103:913 106:64 107:175 108:207 109:1549 110:749
111:896 112:443 113:562 114:630 115:751 116:870
117:726 118:906 119:1204 120:337 121:693 122:1658
123:1088 124:1364 125:1263 128:547 129:190 130:261
131:594 132:173 133:21 134:242 135:63 136:212
137:187 138:275 139:145 140:493 141:241 142:391
143:427 144:498 145:69 146:491 147:243 148:722
149:295 150:156 151:174 152:456 153:171 154:7
155:428 156:213 157:380 158:163 159:522 160:326
161:250 162:349 163:186 164:535 165:393 166:563
167:463 168:811 169:148 170:842 171:121 172:4
173:1717 174:584 175:434 176:457 177:576 178:1290
180:1109 181:73 182:766 183:277 184:441 185:1
186:2125 187:857 188:1140 189:1195 190:5535 192:5984
193:5593 194:4566 195:3635 196:1286 197:186 198:3619
199:4474 200:5747 201:1649 202:8442 203:8599 204:4355
205:2466 206:2744 207:2799 208:4071 209:3602 210:2760
211:1466 212:1977 213:1901 214:870 215:108 216:5051
217:1525 218:539 219:341 220:1231 221:552 222:325
223:328
End of report