Routing Table Report 04:00 +10GMT Sun 18 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 401153
Prefixes after maximum aggregation: 170864
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194734
Total ASes present in the Internet Routing Table: 40378
Prefixes per ASN: 9.93
Origin-only ASes present in the Internet Routing Table: 32891
Origin ASes announcing only one prefix: 15479
Transit ASes present in the Internet Routing Table: 5403
Transit-only ASes present in the Internet Routing Table: 138
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: 411
Unregistered ASNs in the Routing Table: 191
Number of 32-bit ASNs allocated by the RIRs: 2322
Number of 32-bit ASNs visible in the Routing Table: 2084
Prefixes from 32-bit ASNs in the Routing Table: 5052
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 691
Number of addresses announced to Internet: 2526858896
Equivalent to 150 /8s, 156 /16s and 206 /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: 170297
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98372
Total APNIC prefixes after maximum aggregation: 31913
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94759
Unique aggregates announced from the APNIC address blocks: 39227
APNIC Region origin ASes present in the Internet Routing Table: 4666
APNIC Prefixes per ASN: 20.31
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 728
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: 640755040
Equivalent to 38 /8s, 49 /16s and 37 /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: 148774
Total ARIN prefixes after maximum aggregation: 75649
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120366
Unique aggregates announced from the ARIN address blocks: 49846
ARIN Region origin ASes present in the Internet Routing Table: 14931
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5669
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: 16
Number of ARIN addresses announced to Internet: 806545408
Equivalent to 48 /8s, 18 /16s and 232 /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: 100795
Total RIPE prefixes after maximum aggregation: 52946
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92285
Unique aggregates announced from the RIPE address blocks: 57052
RIPE Region origin ASes present in the Internet Routing Table: 16346
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2620
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: 1417
Number of RIPE addresses announced to Internet: 502115848
Equivalent to 29 /8s, 237 /16s and 174 /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: 39112
Total LACNIC prefixes after maximum aggregation: 8092
LACNIC Deaggregation factor: 4.83
Prefixes being announced from the LACNIC address blocks: 38862
Unique aggregates announced from the LACNIC address blocks: 19651
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 24.67
LACNIC Region origin ASes announcing only one prefix: 435
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: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 480
Number of LACNIC addresses announced to Internet: 98500744
Equivalent to 5 /8s, 223 /16s and 0 /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: 8787
Total AfriNIC prefixes after maximum aggregation: 2107
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6881
Unique aggregates announced from the AfriNIC address blocks: 2176
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.13
AfriNIC Region origin ASes announcing only one prefix: 166
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: 5
Number of AfriNIC addresses announced to Internet: 31499008
Equivalent to 1 /8s, 224 /16s and 163 /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 2495 11110 995 Korea Telecom (KIX)
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1653 303 88 TPG Internet Pty Ltd
4755 1569 386 160 TATA Communications formerly
9583 1202 91 509 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1162 1062 11 Vietel Corporation
4808 1095 2048 312 CNCGROUP IP network: China169
24560 1015 384 166 Bharti Airtel Ltd., Telemedia
18101 947 130 160 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 3379 1006 158 Windstream Communications Inc
6389 3375 3807 198 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
1785 1881 680 126 PaeTec Communications, Inc.
20115 1631 1558 628 Charter Communications
4323 1603 1060 382 Time Warner Telecom
22773 1547 2910 111 Cox Communications, Inc.
30036 1398 252 744 Mediacom Communications Corp
7018 1277 9776 836 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 1773 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
34984 664 188 172 BILISIM TELEKOM
6830 641 1943 412 UPC Distribution Services
12479 638 653 67 Uni2 Autonomous System
20940 628 201 487 Akamai Technologies European
8551 576 360 81 Bezeq International
31148 539 37 9 FreeNet ISP
3320 533 8442 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 1801 329 130 TVCABLE BOGOTA
28573 1721 1094 58 NET Servicos de Comunicao S.A
8151 1478 3014 347 UniNet S.A. de C.V.
7303 1331 823 185 Telecom Argentina Stet-France
26615 899 672 33 Tim Brasil S.A.
27947 680 68 108 Telconet S.A
11172 635 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 560 240 89 Empresa Nacional de Telecomun
6503 558 418 65 AVANTEL, 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 1262 958 13 TEDATA
24863 842 274 37 LINKdotNET AS number
6713 489 649 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
24835 182 80 8 RAYA Telecom - Egypt
33776 158 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
16637 152 641 76 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
7029 3379 1006 158 Windstream Communications Inc
6389 3375 3807 198 bellsouth.net, inc.
4766 2495 11110 995 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1881 680 126 PaeTec Communications, Inc.
10620 1801 329 130 TVCABLE BOGOTA
8402 1773 544 16 Corbina telecom
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1721 1094 58 NET Servicos de Comunicao S.A
7545 1653 303 88 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 3375 3177 bellsouth.net, inc.
18566 2093 1914 Covad Communications
8402 1773 1757 Corbina telecom
1785 1881 1755 PaeTec Communications, Inc.
17974 1744 1708 PT TELEKOMUNIKASI INDONESIA
10620 1801 1671 TVCABLE BOGOTA
28573 1721 1663 NET Servicos de Comunicao S.A
7545 1653 1565 TPG Internet Pty Ltd
4766 2495 1500 Korea Telecom (KIX)
22773 1547 1436 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 /15:1475 /16:12184 /17:6235 /18:10418
/19:20508 /20:28659 /21:29536 /22:39949 /23:37311 /24:209496
/25:1217 /26:1454 /27:794 /28:168 /29:59 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3035 3379 Windstream Communications Inc
6389 2090 3375 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1750 1773 Corbina telecom
10620 1698 1801 TVCABLE BOGOTA
30036 1347 1398 Mediacom Communications Corp
11492 1127 1164 Cable One
8452 1072 1262 TEDATA
1785 1065 1881 PaeTec Communications, Inc.
7011 1038 1152 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:531 2:797 4:14 6:3 8:394 12:1971
13:1 14:597 15:11 16:3 17:7 20:8
23:144 24:1753 27:1238 31:918 32:62 33:2
34:2 36:8 37:273 38:769 40:122 41:3012
42:128 44:3 46:1419 47:3 49:342 50:515
52:13 54:5 55:7 56:3 57:38 58:953
59:495 60:278 61:1189 62:979 63:2016 64:4164
65:2284 66:4497 67:2001 68:1159 69:3168 70:900
71:389 72:1780 74:2587 75:489 76:319 77:966
78:979 79:495 80:1219 81:891 82:628 83:554
84:597 85:1185 86:726 87:910 88:335 89:1565
90:288 91:4598 92:517 93:1449 94:1394 95:1125
96:374 97:316 98:815 99:38 100:6 101:201
103:902 106:64 107:173 108:204 109:1551 110:745
111:881 112:442 113:562 114:635 115:777 116:869
117:721 118:906 119:1201 120:336 121:690 122:1627
123:1092 124:1364 125:1274 128:547 129:188 130:263
131:582 132:170 133:21 134:238 135:63 136:212
137:185 138:275 139:145 140:479 141:241 142:388
143:416 144:500 145:69 146:489 147:239 148:721
149:300 150:158 151:176 152:455 153:171 154:7
155:430 156:213 157:379 158:163 159:521 160:327
161:246 162:342 163:186 164:532 165:395 166:562
167:462 168:802 169:148 170:842 171:121 172:4
173:1716 174:595 175:434 176:417 177:571 178:1286
180:1131 181:73 182:792 183:284 184:442 185:1
186:2112 187:844 188:1058 189:1210 190:5542 192:5988
193:5589 194:4561 195:3639 196:1280 197:172 198:3611
199:4463 200:5756 201:1648 202:8424 203:8596 204:4352
205:2458 206:2740 207:2795 208:4070 209:3594 210:2763
211:1463 212:1973 213:1885 214:855 215:106 216:5054
217:1521 218:540 219:339 220:1229 221:552 222:324
223:325
End of report
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