Routing Table Report 04:00 +10GMT Mon 06 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 395767
Prefixes after maximum aggregation: 169333
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 191835
Total ASes present in the Internet Routing Table: 39998
Prefixes per ASN: 9.89
Origin-only ASes present in the Internet Routing Table: 32683
Origin ASes announcing only one prefix: 15515
Transit ASes present in the Internet Routing Table: 5394
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 311
Unregistered ASNs in the Routing Table: 118
Number of 32-bit ASNs allocated by the RIRs: 2265
Number of 32-bit ASNs visible in the Routing Table: 1921
Prefixes from 32-bit ASNs in the Routing Table: 4665
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 114
Number of addresses announced to Internet: 2511162576
Equivalent to 149 /8s, 173 /16s and 76 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
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: 167857
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97701
Total APNIC prefixes after maximum aggregation: 31530
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 93995
Unique aggregates announced from the APNIC address blocks: 39084
APNIC Region origin ASes present in the Internet Routing Table: 4649
APNIC Prefixes per ASN: 20.22
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 140
Number of APNIC addresses announced to Internet: 635776352
Equivalent to 37 /8s, 229 /16s and 45 /24s
Percentage of available APNIC address space announced: 80.6
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: 148154
Total ARIN prefixes after maximum aggregation: 75305
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120151
Unique aggregates announced from the ARIN address blocks: 49264
ARIN Region origin ASes present in the Internet Routing Table: 14883
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5678
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: 15
Number of ARIN addresses announced to Internet: 804339392
Equivalent to 47 /8s, 241 /16s and 62 /24s
Percentage of available ARIN address space announced: 63.9
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: 97922
Total RIPE prefixes after maximum aggregation: 52275
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89802
Unique aggregates announced from the RIPE address blocks: 55893
RIPE Region origin ASes present in the Internet Routing Table: 16284
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2592
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: 1323
Number of RIPE addresses announced to Internet: 498631560
Equivalent to 29 /8s, 184 /16s and 131 /24s
Percentage of available RIPE address space announced: 80.3
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: 38195
Total LACNIC prefixes after maximum aggregation: 8067
LACNIC Deaggregation factor: 4.73
Prefixes being announced from the LACNIC address blocks: 37814
Unique aggregates announced from the LACNIC address blocks: 19448
LACNIC Region origin ASes present in the Internet Routing Table: 1569
LACNIC Prefixes per ASN: 24.10
LACNIC Region origin ASes announcing only one prefix: 440
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: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 439
Number of LACNIC addresses announced to Internet: 95959944
Equivalent to 5 /8s, 184 /16s and 59 /24s
Percentage of available LACNIC address space announced: 63.6
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: 8971
Total AfriNIC prefixes after maximum aggregation: 2084
AfriNIC Deaggregation factor: 4.30
Prefixes being announced from the AfriNIC address blocks: 6982
Unique aggregates announced from the AfriNIC address blocks: 2146
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.6
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: 30850560
Equivalent to 1 /8s, 214 /16s and 190 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2474 11102 982 Korea Telecom (KIX)
17974 1723 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 86 TPG Internet Pty Ltd
4755 1529 385 155 TATA Communications formerly
7552 1408 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1123 82 483 Sify Limited
4808 1102 2051 313 CNCGROUP IP network: China169
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
18101 950 130 155 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 3444 3807 201 bellsouth.net, inc.
7029 3436 1017 200 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 125 PaeTec Communications, Inc.
20115 1627 1552 627 Charter Communications
4323 1609 1062 384 Time Warner Telecom
22773 1499 2910 109 Cox Communications, Inc.
30036 1422 249 750 Mediacom Communications Corp
19262 1385 4683 400 Verizon Global Networks
7018 1304 7007 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 1731 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 LDCOM NETWORKS
34984 645 188 172 BILISIM TELEKOM
6830 642 1927 412 UPC Distribution Services
20940 598 193 464 Akamai Technologies European
12479 561 642 54 Uni2 Autonomous System
31148 536 37 9 FreeNet ISP
3320 531 8162 397 Deutsche Telekom AG
8551 494 359 89 Bezeq International
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 1735 323 170 TVCABLE BOGOTA
28573 1636 1085 69 NET Servicos de Comunicao S.A
8151 1336 2995 343 UniNet S.A. de C.V.
7303 1260 757 180 Telecom Argentina Stet-France
26615 793 612 33 Tim Brasil S.A.
11172 698 95 75 Servicios Alestra S.A de C.V
27947 645 73 97 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
3816 550 237 91 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia 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 1221 958 13 TEDATA
24863 835 155 43 LINKdotNET AS number
6713 484 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 237 13 13 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
16637 163 664 82 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
6389 3444 3807 201 bellsouth.net, inc.
7029 3436 1017 200 Windstream Communications Inc
4766 2474 11102 982 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1866 680 125 PaeTec Communications, Inc.
10620 1735 323 170 TVCABLE BOGOTA
8402 1731 480 15 Corbina telecom
17974 1723 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 86 TPG Internet Pty Ltd
28573 1636 1085 69 NET Servicos de Comunicao S.A
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 3436 3236 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1741 PaeTec Communications, Inc.
8402 1731 1716 Corbina telecom
17974 1723 1687 PT TELEKOMUNIKASI INDONESIA
28573 1636 1567 NET Servicos de Comunicao S.A
10620 1735 1565 TVCABLE BOGOTA
7545 1643 1557 TPG Internet Pty Ltd
4766 2474 1492 Korea Telecom (KIX)
7552 1408 1401 Vietel Corporation
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
41.222.79.0/24 36938 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /10:27 /11:80 /12:230
/13:458 /14:817 /15:1466 /16:12158 /17:6173 /18:10295
/19:20366 /20:28165 /21:29118 /22:39550 /23:36897 /24:206401
/25:1189 /26:1428 /27:787 /28:43 /29:57 /30:13
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3061 3436 Windstream Communications Inc
6389 2114 3444 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1710 1731 Corbina telecom
10620 1629 1735 TVCABLE BOGOTA
30036 1382 1422 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1064 1866 PaeTec Communications, Inc.
15557 1046 1096 LDCOM NETWORKS
7011 1033 1149 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:498 2:477 4:14 5:1 6:3 8:380
12:1954 13:1 14:589 15:11 16:3 17:6
20:9 23:127 24:1725 27:1187 31:838 32:65
33:2 34:2 36:9 37:162 38:774 40:114
41:3144 42:91 43:1 44:3 46:1274 47:3
49:322 50:514 52:13 54:2 55:6 56:3
57:38 58:957 59:493 60:344 61:1186 62:927
63:2001 64:4154 65:2291 66:4436 67:2045 68:1173
69:3152 70:926 71:410 72:1792 74:2651 75:464
76:323 77:965 78:903 79:508 80:1214 81:865
82:561 83:538 84:582 85:1157 86:746 87:903
88:341 89:1540 90:253 91:4428 92:540 93:1562
94:1338 95:1143 96:417 97:310 98:801 99:38
100:4 101:138 103:747 106:10 107:143 108:145
109:1455 110:690 111:845 112:431 113:525 114:597
115:758 116:865 117:724 118:908 119:1249 120:361
121:682 122:1623 123:1068 124:1338 125:1360 128:538
129:189 130:212 131:589 132:164 133:21 134:225
135:59 136:214 137:152 138:285 139:145 140:487
141:262 142:378 143:402 144:508 145:70 146:483
147:228 148:719 149:274 150:168 151:196 152:447
153:170 154:7 155:391 156:211 157:367 158:156
159:513 160:331 161:243 162:341 163:186 164:532
165:393 166:557 167:456 168:764 169:147 170:833
171:108 172:2 173:1755 174:594 175:412 176:474
177:469 178:1247 180:1176 181:64 182:703 183:277
184:430 185:1 186:1934 187:852 188:1039 189:1173
190:5454 192:5975 193:5520 194:4330 195:3391 196:1299
197:180 198:3613 199:4365 200:5708 201:1732 202:8397
203:8605 204:4342 205:2440 206:2747 207:2817 208:4062
209:3568 210:2742 211:1475 212:1976 213:1835 214:853
215:93 216:4982 217:1463 218:553 219:342 220:1254
221:558 222:324 223:274
End of report
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