Routing Table Report 04:00 +10GMT Tue 29 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383086
Prefixes after maximum aggregation: 167149
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188197
Total ASes present in the Internet Routing Table: 39414
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32431
Origin ASes announcing only one prefix: 15476
Transit ASes present in the Internet Routing Table: 5315
Transit-only ASes present in the Internet Routing Table: 139
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: 1801
Unregistered ASNs in the Routing Table: 919
Number of 32-bit ASNs allocated by the RIRs: 2008
Number of 32-bit ASNs visible in the Routing Table: 1668
Prefixes from 32-bit ASNs in the Routing Table: 3938
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2494054912
Equivalent to 148 /8s, 168 /16s and 66 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 161529
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95571
Total APNIC prefixes after maximum aggregation: 31213
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 92019
Unique aggregates announced from the APNIC address blocks: 38620
APNIC Region origin ASes present in the Internet Routing Table: 4602
APNIC Prefixes per ASN: 20.00
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 113
Number of APNIC addresses announced to Internet: 630724960
Equivalent to 37 /8s, 152 /16s and 25 /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: 145890
Total ARIN prefixes after maximum aggregation: 74556
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118170
Unique aggregates announced from the ARIN address blocks: 48638
ARIN Region origin ASes present in the Internet Routing Table: 14767
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5642
ARIN Region transit ASes present in the Internet Routing Table: 1567
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: 803563712
Equivalent to 47 /8s, 229 /16s and 104 /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: 92696
Total RIPE prefixes after maximum aggregation: 51326
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84922
Unique aggregates announced from the RIPE address blocks: 54498
RIPE Region origin ASes present in the Internet Routing Table: 16144
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7988
RIPE Region transit ASes present in the Internet Routing Table: 2557
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: 1162
Number of RIPE addresses announced to Internet: 492632896
Equivalent to 29 /8s, 92 /16s and 251 /24s
Percentage of available RIPE address space announced: 79.4
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: 36490
Total LACNIC prefixes after maximum aggregation: 7951
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35976
Unique aggregates announced from the LACNIC address blocks: 18762
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.20
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 286
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: 377
Number of LACNIC addresses announced to Internet: 93777536
Equivalent to 5 /8s, 150 /16s and 238 /24s
Percentage of available LACNIC address space announced: 62.1
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: 8331
Total AfriNIC prefixes after maximum aggregation: 2031
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6387
Unique aggregates announced from the AfriNIC address blocks: 2008
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.75
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 110
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: 27839744
Equivalent to 1 /8s, 168 /16s and 205 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1634 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 86 TPG Internet Pty Ltd
4755 1510 381 157 TATA Communications formerly
7552 1389 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 80 494 Sify Limited
4808 1082 2072 311 CNCGROUP IP network: China169
24560 966 343 218 Bharti Airtel Ltd., Telemedia
18101 954 120 150 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 3479 3814 217 bellsouth.net, inc.
7029 2911 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 121 PaeTec Communications, Inc.
4323 1613 1078 389 Time Warner Telecom
20115 1600 1546 624 Charter Communications
22773 1502 2909 104 Cox Communications, Inc.
30036 1439 258 678 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1315 7030 861 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 1632 480 15 Corbina telecom
6830 651 1927 412 UPC Distribution Services
34984 612 114 193 BILISIM TELEKOM
20940 557 186 439 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 510 609 26 Uni2 Autonomous System
3292 478 2106 406 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 424 366 45 Bezeq International
31148 412 22 116 FreeNet ISP
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 1700 315 179 TVCABLE BOGOTA
28573 1507 1045 71 NET Servicos de Comunicao S.A
8151 1451 2972 341 UniNet S.A. de C.V.
7303 1236 751 173 Telecom Argentina Stet-France
27947 610 72 87 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 552 434 68 AVANTEL, S.A.
3816 545 236 87 Empresa Nacional de Telecomun
11172 528 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
8452 930 446 12 TEDATA
24863 782 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 204 11 11 Starcomms Nigeria Limited
12258 195 28 60 Vodacom Internet Company
24835 192 80 8 RAYA Telecom - Egypt
16637 157 664 83 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 3479 3814 217 bellsouth.net, inc.
7029 2911 1016 199 Windstream Communications Inc
4766 2512 11105 974 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1850 680 121 PaeTec Communications, Inc.
10620 1700 315 179 TVCABLE BOGOTA
17974 1634 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1632 480 15 Corbina telecom
7545 1625 303 86 TPG Internet Pty Ltd
4323 1613 1078 389 Time Warner Telecom
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 2911 2712 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1729 PaeTec Communications, Inc.
8402 1632 1617 Corbina telecom
17974 1634 1596 PT TELEKOMUNIKASI INDONESIA
7545 1625 1539 TPG Internet Pty Ltd
4766 2512 1538 Korea Telecom (KIX)
10620 1700 1521 TVCABLE BOGOTA
28573 1507 1436 NET Servicos de Comunicao S.A
22773 1502 1398 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
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 /14:809 /15:1435 /16:12033 /17:6094 /18:10149
/19:20022 /20:27724 /21:27918 /22:38079 /23:35615 /24:198927
/25:1145 /26:1352 /27:772 /28:164 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2540 2911 Windstream Communications Inc
6389 2123 3479 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1607 1632 Corbina telecom
10620 1595 1700 TVCABLE BOGOTA
30036 1399 1439 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1850 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 962 1502 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:432 2:490 4:15 5:1 6:3 8:358
12:1952 13:1 14:552 15:11 16:3 17:7
20:9 23:68 24:1693 27:1042 31:684 32:66
33:2 34:2 36:4 38:767 39:1 40:109
41:2869 42:64 43:1 44:3 46:1104 47:3
49:298 50:449 52:13 55:6 56:2 57:49
58:929 59:482 60:360 61:1169 62:913 63:1965
64:4074 65:2310 66:4347 67:2000 68:1173 69:3148
70:904 71:359 72:1813 74:2647 75:430 76:320
77:897 78:893 79:462 80:1136 81:842 82:524
83:521 84:471 85:1160 86:401 87:906 88:353
89:1594 90:246 91:4292 92:528 93:1431 94:1327
95:1115 96:395 97:285 98:751 99:37 101:247
103:513 106:7 107:98 108:86 109:1091 110:680
111:810 112:364 113:503 114:632 115:711 116:910
117:722 118:879 119:1286 120:353 121:668 122:1572
123:1031 124:1369 125:1352 128:305 129:184 130:176
131:633 132:155 133:21 134:225 135:54 136:212
137:145 138:285 139:122 140:491 141:250 142:379
143:403 144:498 145:66 146:476 147:220 148:639
149:275 150:163 151:191 152:448 153:171 154:7
155:381 156:208 157:328 158:157 159:499 160:333
161:215 162:365 163:175 164:517 165:384 166:514
167:449 168:826 169:145 170:826 171:87 172:4
173:1754 174:561 175:436 176:336 177:404 178:1138
180:1178 181:39 182:664 183:248 184:394 185:1
186:1470 187:786 188:941 189:1161 190:5229 192:5939
193:5065 194:3545 195:3112 196:1281 197:169 198:3613
199:4232 200:5512 201:1698 202:8555 203:8526 204:4306
205:2410 206:2657 207:2838 208:4015 209:3557 210:2752
211:1473 212:1982 213:1808 214:807 215:96 216:4923
217:1483 218:575 219:339 220:1252 221:525 222:327
223:281
End of report