Routing Table Report 04:00 +10GMT Tue 13 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 400654
Prefixes after maximum aggregation: 170744
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194815
Total ASes present in the Internet Routing Table: 40324
Prefixes per ASN: 9.94
Origin-only ASes present in the Internet Routing Table: 32845
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5416
Transit-only ASes present in the Internet Routing Table: 145
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: 377
Unregistered ASNs in the Routing Table: 168
Number of 32-bit ASNs allocated by the RIRs: 2315
Number of 32-bit ASNs visible in the Routing Table: 2063
Prefixes from 32-bit ASNs in the Routing Table: 4933
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 599
Number of addresses announced to Internet: 2525777552
Equivalent to 150 /8s, 140 /16s and 78 /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: 92.1
Total number of prefixes smaller than registry allocations: 170052
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98506
Total APNIC prefixes after maximum aggregation: 31879
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 94899
Unique aggregates announced from the APNIC address blocks: 39423
APNIC Region origin ASes present in the Internet Routing Table: 4656
APNIC Prefixes per ASN: 20.38
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 734
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 164
Number of APNIC addresses announced to Internet: 640852064
Equivalent to 38 /8s, 50 /16s and 160 /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: 148651
Total ARIN prefixes after maximum aggregation: 75669
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120189
Unique aggregates announced from the ARIN address blocks: 49875
ARIN Region origin ASes present in the Internet Routing Table: 14932
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5668
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: 806370560
Equivalent to 48 /8s, 16 /16s and 61 /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: 100580
Total RIPE prefixes after maximum aggregation: 52844
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92104
Unique aggregates announced from the RIPE address blocks: 56952
RIPE Region origin ASes present in the Internet Routing Table: 16341
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2619
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: 1405
Number of RIPE addresses announced to Internet: 501631496
Equivalent to 29 /8s, 230 /16s and 74 /24s
Percentage of available RIPE address space announced: 80.8
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: 38984
Total LACNIC prefixes after maximum aggregation: 8123
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38681
Unique aggregates announced from the LACNIC address blocks: 19721
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.57
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 475
Number of LACNIC addresses announced to Internet: 98139272
Equivalent to 5 /8s, 217 /16s and 124 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8770
Total AfriNIC prefixes after maximum aggregation: 2099
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6852
Unique aggregates announced from the AfriNIC address blocks: 2171
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 13.13
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 121
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: 31533312
Equivalent to 1 /8s, 225 /16s and 41 /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 2494 11110 994 Korea Telecom (KIX)
17974 1736 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1649 303 87 TPG Internet Pty Ltd
4755 1568 386 160 TATA Communications formerly
9583 1202 91 509 Sify Limited
9829 1188 1001 30 BSNL National Internet Backbo
7552 1159 1062 11 Vietel Corporation
4808 1093 2048 311 CNCGROUP IP network: China169
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
18101 949 130 156 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 3417 1006 158 Windstream Communications Inc
6389 3405 3807 198 bellsouth.net, inc.
18566 2091 382 177 Covad Communications
1785 1881 680 128 PaeTec Communications, Inc.
20115 1635 1555 634 Charter Communications
4323 1608 1059 384 Time Warner Telecom
22773 1546 2910 111 Cox Communications, Inc.
30036 1422 259 758 Mediacom Communications Corp
7018 1278 9776 839 AT&T WorldNet Services
2386 1162 493 859 AT&T Data Communications Serv
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 1846 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1087 2184 60 LDCOM NETWORKS
34984 660 188 171 BILISIM TELEKOM
12479 644 648 54 Uni2 Autonomous System
6830 640 1927 411 UPC Distribution Services
20940 635 203 486 Akamai Technologies European
8551 577 360 81 Bezeq International
31148 540 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 1761 326 160 TVCABLE BOGOTA
28573 1684 1092 57 NET Servicos de Comunicao S.A
8151 1482 3013 348 UniNet S.A. de C.V.
7303 1329 823 184 Telecom Argentina Stet-France
26615 898 672 29 Tim Brasil S.A.
27947 678 68 110 Telconet S.A
11172 634 91 72 Servicios Alestra S.A de C.V
22047 582 322 17 VTR PUNTO NET S.A.
6503 568 418 65 AVANTEL, S.A.
3816 558 240 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 1251 958 13 TEDATA
24863 834 274 37 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 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 161 12 16 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
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 3417 1006 158 Windstream Communications Inc
6389 3405 3807 198 bellsouth.net, inc.
4766 2494 11110 994 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1881 680 128 PaeTec Communications, Inc.
8402 1846 544 16 Corbina telecom
10620 1761 326 160 TVCABLE BOGOTA
17974 1736 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1684 1092 57 NET Servicos de Comunicao S.A
7545 1649 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
6389 3405 3207 bellsouth.net, inc.
18566 2091 1914 Covad Communications
8402 1846 1830 Corbina telecom
1785 1881 1753 PaeTec Communications, Inc.
17974 1736 1699 PT TELEKOMUNIKASI INDONESIA
28573 1684 1627 NET Servicos de Comunicao S.A
10620 1761 1601 TVCABLE BOGOTA
7545 1649 1562 TPG Internet Pty Ltd
4766 2494 1500 Korea Telecom (KIX)
22773 1546 1435 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 54500 EGIHosting
23.27.0.0/16 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 /14:818 /15:1475 /16:12182 /17:6224 /18:10408
/19:20466 /20:28582 /21:29431 /22:39940 /23:37172 /24:209404
/25:1220 /26:1446 /27:792 /28:165 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3073 3417 Windstream Communications Inc
6389 2103 3405 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1824 1846 Corbina telecom
10620 1658 1761 TVCABLE BOGOTA
30036 1371 1422 Mediacom Communications Corp
11492 1125 1162 Cable One
1785 1064 1881 PaeTec Communications, Inc.
8452 1061 1251 TEDATA
7011 1042 1157 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:522 2:781 4:14 6:3 8:392 12:1962
13:1 14:597 15:12 16:3 17:7 20:8
23:140 24:1750 27:1236 31:953 32:62 33:2
34:2 36:9 37:243 38:779 40:122 41:3007
42:128 44:3 46:1404 47:3 49:340 50:508
52:13 54:5 55:9 56:3 57:38 58:952
59:497 60:284 61:1190 62:973 63:2012 64:4142
65:2282 66:4486 67:2034 68:1158 69:3168 70:885
71:312 72:1780 74:2571 75:469 76:320 77:976
78:965 79:486 80:1208 81:889 82:632 83:540
84:605 85:1186 86:727 87:911 88:334 89:1565
90:286 91:4554 92:515 93:1397 94:1372 95:1121
96:375 97:316 98:810 99:38 100:5 101:239
103:878 106:64 107:172 108:196 109:1548 110:744
111:861 112:440 113:554 114:613 115:803 116:909
117:723 118:903 119:1258 120:331 121:683 122:1625
123:1084 124:1366 125:1342 128:541 129:192 130:261
131:590 132:170 133:21 134:237 135:63 136:212
137:185 138:275 139:145 140:489 141:236 142:389
143:419 144:496 145:69 146:487 147:242 148:725
149:300 150:162 151:176 152:449 153:171 154:7
155:429 156:212 157:381 158:162 159:519 160:329
161:245 162:344 163:186 164:531 165:394 166:564
167:463 168:810 169:148 170:846 171:117 172:4
173:1719 174:586 175:432 176:554 177:540 178:1285
180:1209 181:67 182:766 183:285 184:443 185:1
186:2100 187:841 188:1053 189:1206 190:5512 192:5984
193:5576 194:4464 195:3638 196:1285 197:168 198:3623
199:4450 200:5749 201:1762 202:8408 203:8678 204:4356
205:2452 206:2758 207:2791 208:4066 209:3594 210:2763
211:1467 212:1954 213:1870 214:868 215:103 216:5040
217:1517 218:541 219:332 220:1229 221:552 222:324
223:325
End of report