Routing Table Report 04:00 +10GMT Thu 01 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 399182
Prefixes after maximum aggregation: 170329
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 194057
Total ASes present in the Internet Routing Table: 40242
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32808
Origin ASes announcing only one prefix: 15519
Transit ASes present in the Internet Routing Table: 5410
Transit-only ASes present in the Internet Routing Table: 147
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: 327
Unregistered ASNs in the Routing Table: 137
Number of 32-bit ASNs allocated by the RIRs: 2299
Number of 32-bit ASNs visible in the Routing Table: 2024
Prefixes from 32-bit ASNs in the Routing Table: 4859
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 396
Number of addresses announced to Internet: 2522900752
Equivalent to 150 /8s, 96 /16s and 105 /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: 169736
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98124
Total APNIC prefixes after maximum aggregation: 31811
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94476
Unique aggregates announced from the APNIC address blocks: 39304
APNIC Region origin ASes present in the Internet Routing Table: 4658
APNIC Prefixes per ASN: 20.28
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 741
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 154
Number of APNIC addresses announced to Internet: 641138784
Equivalent to 38 /8s, 55 /16s and 0 /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: 148560
Total ARIN prefixes after maximum aggregation: 75450
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120291
Unique aggregates announced from the ARIN address blocks: 49676
ARIN Region origin ASes present in the Internet Routing Table: 14925
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5683
ARIN Region transit ASes present in the Internet Routing Table: 1572
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: 805437440
Equivalent to 48 /8s, 2 /16s and 0 /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: 99733
Total RIPE prefixes after maximum aggregation: 52769
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 91323
Unique aggregates announced from the RIPE address blocks: 56857
RIPE Region origin ASes present in the Internet Routing Table: 16341
RIPE Prefixes per ASN: 5.59
RIPE Region origin ASes announcing only one prefix: 7998
RIPE Region transit ASes present in the Internet Routing Table: 2613
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: 1388
Number of RIPE addresses announced to Internet: 501116552
Equivalent to 29 /8s, 222 /16s and 110 /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: 38882
Total LACNIC prefixes after maximum aggregation: 8103
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38562
Unique aggregates announced from the LACNIC address blocks: 19643
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 24.51
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 463
Number of LACNIC addresses announced to Internet: 97609608
Equivalent to 5 /8s, 209 /16s and 103 /24s
Percentage of available LACNIC address space announced: 64.6
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: 8844
Total AfriNIC prefixes after maximum aggregation: 2098
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6854
Unique aggregates announced from the AfriNIC address blocks: 2133
AfriNIC Region origin ASes present in the Internet Routing Table: 513
AfriNIC Prefixes per ASN: 13.36
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: 4
Number of AfriNIC addresses announced to Internet: 31502592
Equivalent to 1 /8s, 224 /16s and 177 /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 1731 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1647 303 87 TPG Internet Pty Ltd
4755 1559 386 157 TATA Communications formerly
9829 1172 997 29 BSNL National Internet Backbo
7552 1154 1062 11 Vietel Corporation
4808 1146 2102 317 CNCGROUP IP network: China169
9583 1131 83 481 Sify Limited
24560 1008 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 3431 3807 199 bellsouth.net, inc.
7029 3420 1014 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1873 680 126 PaeTec Communications, Inc.
20115 1632 1550 635 Charter Communications
4323 1610 1059 384 Time Warner Telecom
22773 1537 2910 110 Cox Communications, Inc.
30036 1424 255 737 Mediacom Communications Corp
19262 1390 4703 398 Verizon Global Networks
7018 1307 6963 849 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 1812 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 LDCOM NETWORKS
34984 656 188 172 BILISIM TELEKOM
6830 642 1927 413 UPC Distribution Services
20940 632 203 481 Akamai Technologies European
12479 610 644 55 Uni2 Autonomous System
8551 599 360 81 Bezeq International
31148 541 37 9 FreeNet ISP
3320 531 8441 397 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 1754 324 173 TVCABLE BOGOTA
28573 1684 1088 63 NET Servicos de Comunicao S.A
8151 1482 3013 348 UniNet S.A. de C.V.
7303 1326 822 186 Telecom Argentina Stet-France
26615 897 672 33 Tim Brasil S.A.
27947 666 68 109 Telconet S.A
11172 634 91 72 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
6503 576 418 66 AVANTEL, S.A.
3816 561 240 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 834 274 37 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 211 16 10 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
16637 160 658 78 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 3431 3807 199 bellsouth.net, inc.
7029 3420 1014 160 Windstream Communications Inc
4766 2485 11107 991 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1873 680 126 PaeTec Communications, Inc.
8402 1812 480 15 Corbina telecom
10620 1754 324 173 TVCABLE BOGOTA
17974 1731 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1684 1088 63 NET Servicos de Comunicao S.A
7545 1647 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 3420 3260 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1812 1797 Corbina telecom
1785 1873 1747 PaeTec Communications, Inc.
17974 1731 1694 PT TELEKOMUNIKASI INDONESIA
28573 1684 1621 NET Servicos de Comunicao S.A
10620 1754 1581 TVCABLE BOGOTA
7545 1647 1560 TPG Internet Pty Ltd
4766 2485 1494 Korea Telecom (KIX)
22773 1537 1427 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 /15:1472 /16:12165 /17:6228 /18:10390
/19:20473 /20:28444 /21:29301 /22:39714 /23:37077 /24:208575
/25:1209 /26:1448 /27:783 /28:166 /29:57 /30:14
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3070 3420 Windstream Communications Inc
6389 2106 3431 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1791 1812 Corbina telecom
10620 1651 1754 TVCABLE BOGOTA
30036 1374 1424 Mediacom Communications Corp
11492 1123 1160 Cable One
8452 1066 1258 TEDATA
1785 1064 1873 PaeTec Communications, Inc.
7011 1040 1156 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:518 2:771 4:14 6:3 8:389 12:1963
13:1 14:602 15:11 16:3 17:7 20:8
23:136 24:1737 27:1207 31:951 32:65 33:2
34:2 36:9 37:212 38:779 40:116 41:3030
42:120 44:3 46:1383 47:3 49:333 50:510
52:13 54:4 55:7 56:3 57:38 58:971
59:497 60:343 61:1199 62:961 63:2008 64:4118
65:2280 66:4466 67:2047 68:1173 69:3168 70:913
71:409 72:1790 74:2646 75:468 76:318 77:976
78:968 79:489 80:1221 81:886 82:627 83:540
84:586 85:1155 86:727 87:913 88:334 89:1570
90:284 91:4520 92:513 93:1368 94:1370 95:1120
96:421 97:317 98:818 99:38 100:5 101:150
103:856 106:45 107:166 108:178 109:1526 110:720
111:858 112:435 113:536 114:608 115:792 116:868
117:713 118:902 119:1262 120:364 121:727 122:1625
123:1079 124:1341 125:1323 128:537 129:190 130:264
131:590 132:164 133:21 134:233 135:62 136:212
137:184 138:268 139:145 140:488 141:264 142:390
143:418 144:514 145:69 146:483 147:250 148:733
149:300 150:162 151:198 152:449 153:171 154:7
155:400 156:213 157:370 158:164 159:518 160:322
161:245 162:342 163:187 164:529 165:394 166:559
167:458 168:771 169:148 170:838 171:119 172:4
173:1730 174:598 175:421 176:521 177:528 178:1284
180:1188 181:68 182:744 183:280 184:433 185:1
186:2065 187:861 188:1077 189:1207 190:5473 192:5987
193:5555 194:4348 195:3405 196:1293 197:167 198:3625
199:4425 200:5729 201:1743 202:8385 203:8671 204:4361
205:2446 206:2739 207:2790 208:4058 209:3548 210:2761
211:1476 212:2014 213:1863 214:838 215:101 216:5032
217:1507 218:550 219:332 220:1231 221:563 222:324
223:314
End of report