Routing Table Report 04:00 +10GMT Wed 29 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 399049
Prefixes after maximum aggregation: 170238
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 193837
Total ASes present in the Internet Routing Table: 40228
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32792
Origin ASes announcing only one prefix: 15514
Transit ASes present in the Internet Routing Table: 5418
Transit-only ASes present in the Internet Routing Table: 146
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: 324
Unregistered ASNs in the Routing Table: 135
Number of 32-bit ASNs allocated by the RIRs: 2297
Number of 32-bit ASNs visible in the Routing Table: 2018
Prefixes from 32-bit ASNs in the Routing Table: 4863
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 371
Number of addresses announced to Internet: 2522654224
Equivalent to 150 /8s, 92 /16s and 166 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169724
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98052
Total APNIC prefixes after maximum aggregation: 31796
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94384
Unique aggregates announced from the APNIC address blocks: 39293
APNIC Region origin ASes present in the Internet Routing Table: 4659
APNIC Prefixes per ASN: 20.26
APNIC Region origin ASes announcing only one prefix: 1229
APNIC Region transit ASes present in the Internet Routing Table: 739
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: 151
Number of APNIC addresses announced to Internet: 641101408
Equivalent to 38 /8s, 54 /16s and 110 /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: 148566
Total ARIN prefixes after maximum aggregation: 75440
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120319
Unique aggregates announced from the ARIN address blocks: 49628
ARIN Region origin ASes present in the Internet Routing Table: 14930
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5692
ARIN Region transit ASes present in the Internet Routing Table: 1574
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: 15
Number of ARIN addresses announced to Internet: 805400320
Equivalent to 48 /8s, 1 /16s and 111 /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: 99710
Total RIPE prefixes after maximum aggregation: 52750
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 91348
Unique aggregates announced from the RIPE address blocks: 56776
RIPE Region origin ASes present in the Internet Routing Table: 16336
RIPE Prefixes per ASN: 5.59
RIPE Region origin ASes announcing only one prefix: 7992
RIPE Region transit ASes present in the Internet Routing Table: 2616
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: 1386
Number of RIPE addresses announced to Internet: 501197192
Equivalent to 29 /8s, 223 /16s and 169 /24s
Percentage of available RIPE address space announced: 80.7
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, 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: 38873
Total LACNIC prefixes after maximum aggregation: 8080
LACNIC Deaggregation factor: 4.81
Prefixes being announced from the LACNIC address blocks: 38562
Unique aggregates announced from the LACNIC address blocks: 19628
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 24.56
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 462
Number of LACNIC addresses announced to Internet: 97417352
Equivalent to 5 /8s, 206 /16s and 120 /24s
Percentage of available LACNIC address space announced: 64.5
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: 8808
Total AfriNIC prefixes after maximum aggregation: 2076
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6818
Unique aggregates announced from the AfriNIC address blocks: 2135
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 31498240
Equivalent to 1 /8s, 224 /16s and 160 /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 2485 11107 991 Korea Telecom (KIX)
17974 1732 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1645 303 87 TPG Internet Pty Ltd
4755 1559 386 157 TATA Communications formerly
9829 1182 997 29 BSNL National Internet Backbo
7552 1154 1062 11 Vietel Corporation
4808 1150 2112 320 CNCGROUP IP network: China169
9583 1132 84 481 Sify Limited
24560 1011 385 167 Bharti Airtel Ltd., Telemedia
18101 948 130 154 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 3433 3807 199 bellsouth.net, inc.
7029 3417 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1873 680 126 PaeTec Communications, Inc.
20115 1631 1551 630 Charter Communications
4323 1610 1059 384 Time Warner Telecom
22773 1536 2910 110 Cox Communications, Inc.
30036 1405 252 744 Mediacom Communications Corp
19262 1388 4703 398 Verizon Global Networks
7018 1308 6964 850 AT&T WorldNet Services
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 1796 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
34984 657 188 173 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 631 203 480 Akamai Technologies European
12479 610 644 55 Uni2 Autonomous System
8551 598 360 81 Bezeq International
31148 541 37 9 FreeNet ISP
3320 533 8450 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 1755 324 173 TVCABLE BOGOTA
28573 1690 1088 63 NET Servicos de Comunicao S.A
8151 1488 3013 349 UniNet S.A. de C.V.
7303 1327 822 185 Telecom Argentina Stet-France
26615 896 664 33 Tim Brasil S.A.
27947 662 67 108 Telconet S.A
11172 632 91 72 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
6503 577 418 66 AVANTEL, S.A.
3816 560 240 89 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 1258 958 13 TEDATA
24863 833 274 37 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 169 12 16 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
6389 3433 3807 199 bellsouth.net, inc.
7029 3417 1014 159 Windstream Communications Inc
4766 2485 11107 991 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1873 680 126 PaeTec Communications, Inc.
8402 1796 480 15 Corbina telecom
10620 1755 324 173 TVCABLE BOGOTA
17974 1732 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1690 1088 63 NET Servicos de Comunicao S.A
7545 1645 303 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 3417 3258 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1796 1781 Corbina telecom
1785 1873 1747 PaeTec Communications, Inc.
17974 1732 1696 PT TELEKOMUNIKASI INDONESIA
28573 1690 1627 NET Servicos de Comunicao S.A
10620 1755 1582 TVCABLE BOGOTA
7545 1645 1558 TPG Internet Pty Ltd
4766 2485 1494 Korea Telecom (KIX)
22773 1536 1426 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
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
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
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 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /12:233
/13:458 /14:816 /15:1471 /16:12164 /17:6217 /18:10394
/19:20478 /20:28454 /21:29332 /22:39771 /23:37074 /24:208345
/25:1210 /26:1449 /27:784 /28:169 /29:57 /30:14
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3072 3417 Windstream Communications Inc
6389 2107 3433 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1775 1796 Corbina telecom
10620 1652 1755 TVCABLE BOGOTA
30036 1355 1405 Mediacom Communications Corp
11492 1123 1160 Cable One
8452 1066 1258 TEDATA
1785 1064 1873 PaeTec Communications, Inc.
15557 1046 1099 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:519 2:754 4:14 6:3 8:389 12:1965
13:1 14:601 15:11 16:3 17:7 20:8
23:135 24:1725 27:1198 31:947 32:65 33:2
34:2 36:9 37:209 38:780 40:116 41:3019
42:114 44:3 46:1373 47:3 49:329 50:509
52:13 54:3 55:7 56:3 57:38 58:970
59:495 60:346 61:1190 62:961 63:2008 64:4120
65:2278 66:4468 67:2048 68:1173 69:3169 70:913
71:409 72:1791 74:2645 75:470 76:319 77:975
78:966 79:487 80:1219 81:882 82:628 83:540
84:588 85:1159 86:728 87:913 88:334 89:1563
90:283 91:4524 92:513 93:1370 94:1370 95:1117
96:422 97:313 98:815 99:38 100:4 101:149
103:838 106:45 107:162 108:177 109:1542 110:721
111:856 112:435 113:535 114:602 115:783 116:870
117:711 118:902 119:1263 120:361 121:688 122:1628
123:1080 124:1337 125:1323 128:538 129:190 130:231
131:590 132:164 133:21 134:234 135:62 136:214
137:182 138:268 139:145 140:491 141:264 142:394
143:422 144:515 145:69 146:484 147:241 148:733
149:299 150:162 151:198 152:449 153:171 154:7
155:400 156:213 157:369 158:164 159:514 160:322
161:245 162:342 163:188 164:531 165:394 166:559
167:458 168:759 169:148 170:838 171:119 172:4
173:1725 174:602 175:419 176:518 177:535 178:1278
180:1187 181:69 182:741 183:278 184:434 185:1
186:2058 187:863 188:1082 189:1209 190:5462 192:5989
193:5552 194:4346 195:3401 196:1293 197:166 198:3629
199:4419 200:5717 201:1744 202:8396 203:8663 204:4363
205:2445 206:2740 207:2793 208:4063 209:3547 210:2764
211:1475 212:2016 213:1858 214:839 215:101 216:5031
217:1510 218:550 219:331 220:1228 221:563 222:324
223:314
End of report
