Routing Table Report 04:00 +10GMT Fri 14 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 376076
Prefixes after maximum aggregation: 169307
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184921
Total ASes present in the Internet Routing Table: 39048
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 32307
Origin ASes announcing only one prefix: 15476
Transit ASes present in the Internet Routing Table: 5227
Transit-only ASes present in the Internet Routing Table: 133
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: 1420
Unregistered ASNs in the Routing Table: 783
Number of 32-bit ASNs allocated by the RIRs: 1851
Number of 32-bit ASNs visible in the Routing Table: 1514
Prefixes from 32-bit ASNs in the Routing Table: 3447
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2483568864
Equivalent to 148 /8s, 8 /16s and 64 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 157483
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94304
Total APNIC prefixes after maximum aggregation: 30910
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90762
Unique aggregates announced from the APNIC address blocks: 37928
APNIC Region origin ASes present in the Internet Routing Table: 4581
APNIC Prefixes per ASN: 19.81
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 700
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 93
Number of APNIC addresses announced to Internet: 628463712
Equivalent to 37 /8s, 117 /16s and 152 /24s
Percentage of available APNIC address space announced: 79.7
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: 144480
Total ARIN prefixes after maximum aggregation: 74193
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116652
Unique aggregates announced from the ARIN address blocks: 48000
ARIN Region origin ASes present in the Internet Routing Table: 14725
ARIN Prefixes per ASN: 7.92
ARIN Region origin ASes announcing only one prefix: 5660
ARIN Region transit ASes present in the Internet Routing Table: 1565
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: 804475904
Equivalent to 47 /8s, 243 /16s and 84 /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: 90396
Total RIPE prefixes after maximum aggregation: 50521
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83035
Unique aggregates announced from the RIPE address blocks: 53916
RIPE Region origin ASes present in the Internet Routing Table: 16026
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7954
RIPE Region transit ASes present in the Internet Routing Table: 2512
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: 1064
Number of RIPE addresses announced to Internet: 490858112
Equivalent to 29 /8s, 65 /16s and 230 /24s
Percentage of available RIPE address space announced: 79.1
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: 34925
Total LACNIC prefixes after maximum aggregation: 7861
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 34279
Unique aggregates announced from the LACNIC address blocks: 17830
LACNIC Region origin ASes present in the Internet Routing Table: 1535
LACNIC Prefixes per ASN: 22.33
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 341
Number of LACNIC addresses announced to Internet: 90678912
Equivalent to 5 /8s, 103 /16s and 166 /24s
Percentage of available LACNIC address space announced: 60.1
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: 8360
Total AfriNIC prefixes after maximum aggregation: 2004
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6438
Unique aggregates announced from the AfriNIC address blocks: 1980
AfriNIC Region origin ASes present in the Internet Routing Table: 488
AfriNIC Prefixes per ASN: 13.19
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 107
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: 27815680
Equivalent to 1 /8s, 168 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 41.4
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 2499 11063 960 Korea Telecom (KIX)
17974 1816 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1612 303 86 TPG Internet Pty Ltd
4755 1540 639 173 TATA Communications formerly
7552 1393 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1093 80 505 Sify Limited
4808 1081 2100 308 CNCGROUP IP network: China169
24560 1057 343 225 Bharti Airtel Ltd., Telemedia
18101 952 165 142 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 3549 3815 221 bellsouth.net, inc.
7029 2119 1016 197 Windstream Communications Inc
18566 1991 370 230 Covad Communications
1785 1836 680 121 PaeTec Communications, Inc.
4323 1630 1083 392 Time Warner Telecom
20115 1590 1541 634 Charter Communications
22773 1461 2907 100 Cox Communications, Inc.
30036 1385 250 676 Mediacom Communications Corp
7018 1340 7033 876 AT&T WorldNet Services
2386 1210 498 873 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 1469 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 582 108 180 BILISIM TELEKOM
20940 547 184 421 Akamai Technologies European
3320 503 8169 385 Deutsche Telekom AG
12479 483 593 7 Uni2 Autonomous System
3292 482 2082 409 TDC Tele Danmark
8866 459 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
8551 404 354 44 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 1680 310 154 TVCABLE BOGOTA
8151 1426 2845 349 UniNet S.A. de C.V.
28573 1363 1015 68 NET Servicos de Comunicao S.A
7303 1164 683 175 Telecom Argentina Stet-France
22047 580 322 17 VTR PUNTO NET S.A.
27947 575 71 83 Telconet S.A
6503 574 450 69 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 96 Empresa Nacional de Telecomun
11172 521 85 94 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 802 146 36 LINKdotNET AS number
8452 504 446 12 TEDATA
15475 444 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 278 938 230 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 198 28 58 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 3549 3815 221 bellsouth.net, inc.
4766 2499 11063 960 Korea Telecom (KIX)
7029 2119 1016 197 Windstream Communications Inc
18566 1991 370 230 Covad Communications
1785 1836 680 121 PaeTec Communications, Inc.
17974 1816 519 33 PT TELEKOMUNIKASI INDONESIA
10620 1680 310 154 TVCABLE BOGOTA
4323 1630 1083 392 Time Warner Telecom
7545 1612 303 86 TPG Internet Pty Ltd
20115 1590 1541 634 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 2119 1922 Windstream Communications Inc
17974 1816 1783 PT TELEKOMUNIKASI INDONESIA
18566 1991 1761 Covad Communications
1785 1836 1715 PaeTec Communications, Inc.
4766 2499 1539 Korea Telecom (KIX)
10620 1680 1526 TVCABLE BOGOTA
7545 1612 1526 TPG Internet Pty Ltd
8402 1469 1456 Corbina telecom
7552 1393 1386 Vietel Corporation
4755 1540 1367 TATA Communications formerly
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
128.0.80.0/24 30977 JSC "Yugra-Telecom"
128.0.81.0/24 30977 JSC "Yugra-Telecom"
128.0.82.0/24 30977 JSC "Yugra-Telecom"
128.0.83.0/24 30977 JSC "Yugra-Telecom"
128.0.84.0/24 30977 JSC "Yugra-Telecom"
128.0.85.0/24 30977 JSC "Yugra-Telecom"
128.0.86.0/24 30977 JSC "Yugra-Telecom"
128.0.87.0/24 30977 JSC "Yugra-Telecom"
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 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
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 /12:235
/13:464 /14:807 /15:1424 /16:11991 /17:6015 /18:10043
/19:19908 /20:27253 /21:27289 /22:36807 /23:34879 /24:195400
/25:1150 /26:1349 /27:744 /28:170 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2188 3549 bellsouth.net, inc.
18566 1947 1991 Covad Communications
7029 1807 2119 Windstream Communications Inc
10620 1575 1680 TVCABLE BOGOTA
8402 1446 1469 Corbina telecom
30036 1347 1385 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1056 1836 PaeTec Communications, Inc.
7011 1048 1166 Citizens Utilities
22773 949 1461 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:389 2:481 4:15 5:1 6:3 8:359
12:1951 13:1 14:539 15:11 16:3 17:7
20:9 23:57 24:1684 27:962 31:581 32:65
33:4 34:2 36:4 38:751 40:108 41:2534
42:50 44:3 46:988 47:3 49:268 50:446
52:13 55:5 56:2 57:37 58:884 59:492
60:363 61:1174 62:1090 63:1930 64:4061 65:2298
66:4133 67:1962 68:1133 69:3217 70:825 71:266
72:1815 74:2471 75:367 76:340 77:885 78:867
79:478 80:1122 81:826 82:502 83:535 84:636
85:1118 86:398 87:873 88:353 89:1598 90:269
91:4183 92:528 93:1384 94:1299 95:1043 96:389
97:282 98:908 99:37 101:214 103:358 106:70
107:64 108:38 109:1057 110:663 111:794 112:326
113:482 114:576 115:697 116:877 117:714 118:893
119:1240 120:338 121:690 122:1572 123:1020 124:1363
125:1380 128:255 129:177 130:166 131:587 132:121
133:21 134:218 135:54 136:213 137:139 138:288
139:120 140:493 141:265 142:387 143:433 144:492
145:63 146:471 147:215 148:636 149:258 150:155
151:171 152:448 153:178 154:7 155:387 156:207
157:360 158:151 159:468 160:320 161:214 162:338
163:175 164:509 165:364 166:537 167:435 168:741
169:145 170:872 171:86 172:4 173:1676 174:665
175:421 176:280 177:322 178:1048 180:1109 181:36
182:634 183:214 184:372 185:1 186:1273 187:670
188:926 189:845 190:5108 192:5910 193:5020 194:3539
195:3092 196:1237 197:184 198:3632 199:4152 200:5499
201:1655 202:8530 203:8466 204:4290 205:2369 206:2670
207:2812 208:4056 209:3543 210:2688 211:1454 212:2065
213:1766 214:797 215:90 216:4973 217:1616 218:563
219:336 220:1241 221:514 222:321 223:280
End of report