Routing Table Report 04:00 +10GMT Tue 15 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382154
Prefixes after maximum aggregation: 166715
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187485
Total ASes present in the Internet Routing Table: 39300
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32415
Origin ASes announcing only one prefix: 15496
Transit ASes present in the Internet Routing Table: 5265
Transit-only ASes present in the Internet Routing Table: 131
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: 1713
Unregistered ASNs in the Routing Table: 887
Number of 32-bit ASNs allocated by the RIRs: 1947
Number of 32-bit ASNs visible in the Routing Table: 1620
Prefixes from 32-bit ASNs in the Routing Table: 3740
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2490506368
Equivalent to 148 /8s, 114 /16s and 28 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161552
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95121
Total APNIC prefixes after maximum aggregation: 31141
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91589
Unique aggregates announced from the APNIC address blocks: 38384
APNIC Region origin ASes present in the Internet Routing Table: 4597
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 711
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: 108
Number of APNIC addresses announced to Internet: 629896032
Equivalent to 37 /8s, 139 /16s and 115 /24s
Percentage of available APNIC address space announced: 79.9
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: 146178
Total ARIN prefixes after maximum aggregation: 74416
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118337
Unique aggregates announced from the ARIN address blocks: 48523
ARIN Region origin ASes present in the Internet Routing Table: 14751
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5647
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: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804233152
Equivalent to 47 /8s, 239 /16s and 159 /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: 92104
Total RIPE prefixes after maximum aggregation: 51139
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84387
Unique aggregates announced from the RIPE address blocks: 54372
RIPE Region origin ASes present in the Internet Routing Table: 16116
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7985
RIPE Region transit ASes present in the Internet Routing Table: 2524
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: 1124
Number of RIPE addresses announced to Internet: 491875136
Equivalent to 29 /8s, 81 /16s and 107 /24s
Percentage of available RIPE address space announced: 79.2
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: 36227
Total LACNIC prefixes after maximum aggregation: 7903
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35666
Unique aggregates announced from the LACNIC address blocks: 18603
LACNIC Region origin ASes present in the Internet Routing Table: 1546
LACNIC Prefixes per ASN: 23.07
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 282
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: 372
Number of LACNIC addresses announced to Internet: 92951936
Equivalent to 5 /8s, 138 /16s and 85 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8603
Total AfriNIC prefixes after maximum aggregation: 2041
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6663
Unique aggregates announced from the AfriNIC address blocks: 2027
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.43
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 27592192
Equivalent to 1 /8s, 165 /16s and 6 /24s
Percentage of available AfriNIC address space announced: 41.1
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 2510 11108 968 Korea Telecom (KIX)
17974 1643 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 88 TPG Internet Pty Ltd
4755 1527 378 170 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
4808 1093 2095 313 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 952 119 148 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 3543 3814 219 bellsouth.net, inc.
7029 2919 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
4323 1620 1077 387 Time Warner Telecom
20115 1596 1545 624 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1420 256 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1309 7027 857 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 1565 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 598 111 186 BILISIM TELEKOM
20940 552 182 434 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
3292 478 2074 406 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
8551 403 354 43 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 1706 316 157 TVCABLE BOGOTA
28573 1488 1043 79 NET Servicos de Comunicao S.A
8151 1445 2937 347 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 596 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 566 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 539 234 96 Empresa Nacional de Telecomun
11172 525 85 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
24863 779 146 36 LINKdotNET AS number
8452 682 446 12 TEDATA
15475 444 74 8 Nile Online
36992 282 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
33776 239 13 8 Starcomms Nigeria Limited
15706 237 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
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 3543 3814 219 bellsouth.net, inc.
7029 2919 1016 199 Windstream Communications Inc
4766 2510 11108 968 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
10620 1706 316 157 TVCABLE BOGOTA
17974 1643 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 88 TPG Internet Pty Ltd
4323 1620 1077 387 Time Warner Telecom
20115 1596 1545 624 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 2919 2720 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1847 1725 PaeTec Communications, Inc.
17974 1643 1607 PT TELEKOMUNIKASI INDONESIA
8402 1565 1551 Corbina telecom
10620 1706 1549 TVCABLE BOGOTA
4766 2510 1542 Korea Telecom (KIX)
7545 1627 1539 TPG Internet Pty Ltd
28573 1488 1409 NET Servicos de Comunicao S.A
22773 1496 1393 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
128.0.0.0/16 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
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
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 /14:808 /15:1422 /16:12020 /17:6063 /18:10103
/19:19966 /20:27614 /21:27770 /22:37728 /23:35386 /24:198986
/25:1149 /26:1363 /27:763 /28:164 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2549 2919 Windstream Communications Inc
6389 2184 3543 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1541 1565 Corbina telecom
30036 1380 1420 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1847 PaeTec Communications, Inc.
7011 1023 1136 Citizens Utilities
22773 958 1496 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:491 4:15 5:1 6:3 8:357
12:1966 13:1 14:547 15:11 16:3 17:7
20:9 23:63 24:1681 27:1034 31:698 32:65
33:2 34:2 36:4 38:759 39:1 40:110
41:2711 42:60 43:1 44:3 46:1044 47:3
49:299 50:450 52:13 55:5 56:2 57:47
58:909 59:492 60:360 61:1132 62:1090 63:1973
64:4064 65:2296 66:4320 67:2016 68:1175 69:3139
70:904 71:389 72:1820 74:2623 75:430 76:319
77:889 78:886 79:491 80:1136 81:837 82:512
83:518 84:623 85:1154 86:403 87:898 88:355
89:1595 90:236 91:4255 92:536 93:1440 94:1299
95:1119 96:427 97:285 98:943 99:37 101:234
103:467 106:7 107:91 108:78 109:1193 110:671
111:805 112:358 113:485 114:620 115:712 116:877
117:725 118:891 119:1279 120:349 121:670 122:1578
123:1028 124:1354 125:1350 128:246 129:184 130:163
131:629 132:150 133:21 134:223 135:54 136:213
137:143 138:287 139:121 140:494 141:253 142:389
143:407 144:493 145:64 146:470 147:219 148:634
149:267 150:164 151:194 152:449 153:172 154:7
155:389 156:208 157:361 158:154 159:490 160:333
161:209 162:374 163:174 164:511 165:369 166:544
167:442 168:819 169:145 170:881 171:87 172:4
173:1745 174:700 175:432 176:313 177:367 178:1099
180:1145 181:38 182:654 183:239 184:392 185:1
186:1409 187:775 188:965 189:1149 190:5217 192:5931
193:5058 194:3548 195:3110 196:1274 197:167 198:3614
199:4221 200:5526 201:1703 202:8537 203:8536 204:4312
205:2379 206:2670 207:2815 208:4024 209:3586 210:2727
211:1465 212:2000 213:1803 214:796 215:97 216:4932
217:1605 218:571 219:338 220:1256 221:518 222:324
223:272
End of report
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