Routing Table Report 04:00 +10GMT Fri 09 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 384156
Prefixes after maximum aggregation: 167400
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188501
Total ASes present in the Internet Routing Table: 39500
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32456
Origin ASes announcing only one prefix: 15489
Transit ASes present in the Internet Routing Table: 5334
Transit-only ASes present in the Internet Routing Table: 145
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: 1854
Unregistered ASNs in the Routing Table: 962
Number of 32-bit ASNs allocated by the RIRs: 2057
Number of 32-bit ASNs visible in the Routing Table: 1710
Prefixes from 32-bit ASNs in the Routing Table: 4061
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 82
Number of addresses announced to Internet: 2498790400
Equivalent to 148 /8s, 240 /16s and 132 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 161959
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95445
Total APNIC prefixes after maximum aggregation: 31216
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91908
Unique aggregates announced from the APNIC address blocks: 38571
APNIC Region origin ASes present in the Internet Routing Table: 4602
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1246
APNIC Region transit ASes present in the Internet Routing Table: 727
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 118
Number of APNIC addresses announced to Internet: 631121248
Equivalent to 37 /8s, 158 /16s and 37 /24s
Percentage of available APNIC address space announced: 80.0
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: 146278
Total ARIN prefixes after maximum aggregation: 74765
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118374
Unique aggregates announced from the ARIN address blocks: 48626
ARIN Region origin ASes present in the Internet Routing Table: 14794
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1576
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803337408
Equivalent to 47 /8s, 225 /16s and 244 /24s
Percentage of available ARIN address space announced: 63.8
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: 93045
Total RIPE prefixes after maximum aggregation: 51339
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85451
Unique aggregates announced from the RIPE address blocks: 54677
RIPE Region origin ASes present in the Internet Routing Table: 16147
RIPE Prefixes per ASN: 5.29
RIPE Region origin ASes announcing only one prefix: 7988
RIPE Region transit ASes present in the Internet Routing Table: 2550
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: 1198
Number of RIPE addresses announced to Internet: 493396672
Equivalent to 29 /8s, 104 /16s and 162 /24s
Percentage of available RIPE address space announced: 79.5
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: 36741
Total LACNIC prefixes after maximum aggregation: 7940
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36213
Unique aggregates announced from the LACNIC address blocks: 18845
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.30
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 378
Number of LACNIC addresses announced to Internet: 94576000
Equivalent to 5 /8s, 163 /16s and 29 /24s
Percentage of available LACNIC address space announced: 62.6
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: 8414
Total AfriNIC prefixes after maximum aggregation: 2066
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 6454
Unique aggregates announced from the AfriNIC address blocks: 2062
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 12.81
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 111
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: 30385664
Equivalent to 1 /8s, 207 /16s and 166 /24s
Percentage of available AfriNIC address space announced: 45.3
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 2512 11105 974 Korea Telecom (KIX)
17974 1689 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 86 TPG Internet Pty Ltd
4755 1511 385 158 TATA Communications formerly
7552 1392 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
4808 1077 2034 303 CNCGROUP IP network: China169
24560 982 381 162 Bharti Airtel Ltd., Telemedia
18101 960 121 154 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 3481 3814 218 bellsouth.net, inc.
7029 2914 1016 199 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1854 680 121 PaeTec Communications, Inc.
4323 1615 1073 385 Time Warner Telecom
20115 1603 1549 629 Charter Communications
22773 1506 2909 104 Cox Communications, Inc.
30036 1438 257 675 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1310 7029 859 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 1577 480 15 Corbina telecom
6830 645 1927 412 UPC Distribution Services
34984 625 132 201 BILISIM TELEKOM
2118 544 99 14 EUnet/RELCOM Autonomous Syste
20940 543 174 433 Akamai Technologies European
3320 523 8161 390 Deutsche Telekom AG
12479 494 601 13 Uni2 Autonomous System
3292 480 2106 407 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 423 366 45 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 1719 318 155 TVCABLE BOGOTA
28573 1546 1059 72 NET Servicos de Comunicao S.A
8151 1459 2985 348 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 616 72 91 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
6503 553 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 547 237 89 Empresa Nacional de Telecomun
11172 528 86 95 Servicios Alestra S.A de C.V
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 963 958 13 TEDATA
24863 785 146 35 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
16637 160 662 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 3481 3814 218 bellsouth.net, inc.
7029 2914 1016 199 Windstream Communications Inc
4766 2512 11105 974 Korea Telecom (KIX)
18566 2094 383 177 Covad Communications
1785 1854 680 121 PaeTec Communications, Inc.
10620 1719 318 155 TVCABLE BOGOTA
17974 1689 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 86 TPG Internet Pty Ltd
4323 1615 1073 385 Time Warner Telecom
20115 1603 1549 629 Charter Communications
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 2914 2715 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1854 1733 PaeTec Communications, Inc.
17974 1689 1651 PT TELEKOMUNIKASI INDONESIA
10620 1719 1564 TVCABLE BOGOTA
8402 1577 1562 Corbina telecom
7545 1631 1545 TPG Internet Pty Ltd
4766 2512 1538 Korea Telecom (KIX)
28573 1546 1474 NET Servicos de Comunicao S.A
22773 1506 1402 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
37.0.24.0/21 50794 AS Levira
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.171.32.0/20 705 UUNET Technologies, Inc.
66.175.222.0/23 30058 FDC Servers.net, LLC
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 /11:81 /12:236
/13:465 /14:812 /15:1440 /16:12045 /17:6104 /18:10138
/19:20052 /20:27757 /21:27982 /22:38032 /23:35805 /24:199596
/25:1177 /26:1415 /27:783 /28:170 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2543 2914 Windstream Communications Inc
6389 2124 3481 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1614 1719 TVCABLE BOGOTA
8402 1552 1577 Corbina telecom
30036 1398 1438 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1059 1854 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
22773 966 1506 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:443 2:481 4:15 5:1 6:3 8:360
12:1949 13:1 14:556 15:11 16:3 17:7
20:9 23:71 24:1697 27:1111 31:718 32:67
33:2 34:2 36:4 38:772 39:1 40:114
41:2895 42:68 43:1 44:3 46:1099 47:3
49:290 50:457 52:13 55:7 56:2 57:45
58:943 59:487 60:343 61:1178 62:909 63:1968
64:4067 65:2310 66:4357 67:1998 68:1177 69:3149
70:905 71:362 72:1777 74:2643 75:431 76:319
77:939 78:884 79:438 80:1144 81:845 82:526
83:530 84:468 85:1160 86:385 87:910 88:353
89:1582 90:247 91:4338 92:535 93:1406 94:1325
95:1125 96:395 97:286 98:779 99:38 101:122
103:533 106:8 107:105 108:95 109:1094 110:666
111:822 112:376 113:487 114:616 115:700 116:879
117:715 118:878 119:1238 120:348 121:681 122:1556
123:1023 124:1369 125:1338 128:278 129:176 130:183
131:579 132:157 133:21 134:222 135:55 136:209
137:147 138:287 139:123 140:491 141:253 142:377
143:413 144:506 145:66 146:474 147:222 148:641
149:271 150:166 151:192 152:445 153:171 154:7
155:381 156:210 157:358 158:156 159:503 160:334
161:221 162:363 163:183 164:523 165:385 166:541
167:459 168:817 169:146 170:823 171:90 172:4
173:1779 174:589 175:420 176:343 177:438 178:1138
180:1186 181:38 182:675 183:246 184:396 185:1
186:1476 187:781 188:937 189:1173 190:5284 192:5973
193:5117 194:3794 195:3370 196:1286 197:172 198:3612
199:4206 200:5512 201:1700 202:8491 203:8524 204:4325
205:2405 206:2666 207:2843 208:4015 209:3559 210:2750
211:1473 212:1973 213:1796 214:815 215:92 216:4933
217:1492 218:579 219:344 220:1250 221:528 222:326
223:255
End of report
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