Routing Table Report 04:00 +10GMT Fri 04 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380665
Prefixes after maximum aggregation: 166640
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187004
Total ASes present in the Internet Routing Table: 39234
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 32379
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5267
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: 1612
Unregistered ASNs in the Routing Table: 856
Number of 32-bit ASNs allocated by the RIRs: 1923
Number of 32-bit ASNs visible in the Routing Table: 1588
Prefixes from 32-bit ASNs in the Routing Table: 3675
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2489772608
Equivalent to 148 /8s, 102 /16s and 234 /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: 160555
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94754
Total APNIC prefixes after maximum aggregation: 31057
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91205
Unique aggregates announced from the APNIC address blocks: 38255
APNIC Region origin ASes present in the Internet Routing Table: 4598
APNIC Prefixes per ASN: 19.84
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 713
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 101
Number of APNIC addresses announced to Internet: 629605984
Equivalent to 37 /8s, 135 /16s and 6 /24s
Percentage of available APNIC address space announced: 79.8
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: 145960
Total ARIN prefixes after maximum aggregation: 74522
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117881
Unique aggregates announced from the ARIN address blocks: 48284
ARIN Region origin ASes present in the Internet Routing Table: 14744
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5647
ARIN Region transit ASes present in the Internet Routing Table: 1558
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: 804643584
Equivalent to 47 /8s, 245 /16s and 227 /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: 91650
Total RIPE prefixes after maximum aggregation: 51037
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84167
Unique aggregates announced from the RIPE address blocks: 54490
RIPE Region origin ASes present in the Internet Routing Table: 16085
RIPE Prefixes per ASN: 5.23
RIPE Region origin ASes announcing only one prefix: 7972
RIPE Region transit ASes present in the Internet Routing Table: 2537
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: 1107
Number of RIPE addresses announced to Internet: 491695040
Equivalent to 29 /8s, 78 /16s and 171 /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: 35851
Total LACNIC prefixes after maximum aggregation: 7915
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 35251
Unique aggregates announced from the LACNIC address blocks: 18495
LACNIC Region origin ASes present in the Internet Routing Table: 1543
LACNIC Prefixes per ASN: 22.85
LACNIC Region origin ASes announcing only one prefix: 444
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 364
Number of LACNIC addresses announced to Internet: 92779904
Equivalent to 5 /8s, 135 /16s and 181 /24s
Percentage of available LACNIC address space announced: 61.4
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: 8591
Total AfriNIC prefixes after maximum aggregation: 2033
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6682
Unique aggregates announced from the AfriNIC address blocks: 2003
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 27614720
Equivalent to 1 /8s, 165 /16s and 94 /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 2514 11129 974 Korea Telecom (KIX)
17974 1629 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1614 303 87 TPG Internet Pty Ltd
4755 1548 637 174 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1091 2103 312 CNCGROUP IP network: China169
9583 1091 80 499 Sify Limited
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 954 135 150 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 3543 3814 220 bellsouth.net, inc.
7029 2336 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1844 680 122 PaeTec Communications, Inc.
4323 1623 1078 389 Time Warner Telecom
20115 1596 1547 621 Charter Communications
22773 1462 2924 102 Cox Communications, Inc.
30036 1401 253 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1315 7029 860 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 1483 416 14 Corbina telecom
6830 650 1927 414 UPC Distribution Services
34984 596 110 184 BILISIM TELEKOM
12479 548 629 52 Uni2 Autonomous System
20940 538 179 422 Akamai Technologies European
3320 507 8169 387 Deutsche Telekom AG
3292 481 2074 406 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
31148 405 22 113 FreeNet ISP
8551 403 354 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 1699 314 156 TVCABLE BOGOTA
28573 1481 1043 79 NET Servicos de Comunicao S.A
8151 1430 2937 345 UniNet S.A. de C.V.
7303 1234 751 171 Telecom Argentina Stet-France
27947 591 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 566 434 68 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 95 Empresa Nacional de Telecomun
11172 525 86 96 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 801 146 36 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 443 74 8 Nile Online
36992 304 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 230 13 10 Starcomms Nigeria Limited
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 220 bellsouth.net, inc.
4766 2514 11129 974 Korea Telecom (KIX)
7029 2336 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1844 680 122 PaeTec Communications, Inc.
10620 1699 314 156 TVCABLE BOGOTA
17974 1629 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1623 1078 389 Time Warner Telecom
7545 1614 303 87 TPG Internet Pty Ltd
20115 1596 1547 621 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 2336 2138 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1844 1722 PaeTec Communications, Inc.
17974 1629 1593 PT TELEKOMUNIKASI INDONESIA
10620 1699 1543 TVCABLE BOGOTA
4766 2514 1540 Korea Telecom (KIX)
7545 1614 1527 TPG Internet Pty Ltd
8402 1483 1469 Corbina telecom
28573 1481 1402 NET Servicos de Comunicao S.A
7552 1394 1387 Vietel Corporation
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 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 /12:236
/13:465 /14:809 /15:1424 /16:12026 /17:6059 /18:10093
/19:19945 /20:27579 /21:27718 /22:37167 /23:35257 /24:198307
/25:1153 /26:1351 /27:762 /28:166 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3543 bellsouth.net, inc.
18566 2043 2094 Covad Communications
7029 2004 2336 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1458 1483 Corbina telecom
30036 1362 1401 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1057 1844 PaeTec Communications, Inc.
7011 1051 1169 Citizens Utilities
22773 948 1462 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:413 2:482 4:15 5:1 6:3 8:361
12:1955 13:1 14:542 15:11 16:3 17:7
20:9 23:59 24:1682 27:980 31:672 32:65
33:2 34:2 36:4 38:758 40:110 41:2690
42:55 44:3 46:1024 47:3 49:299 50:444
52:13 55:6 56:2 57:47 58:902 59:495
60:361 61:1123 62:1087 63:1964 64:4055 65:2302
66:4288 67:2004 68:1168 69:3187 70:881 71:384
72:1805 74:2606 75:389 76:317 77:881 78:879
79:476 80:1151 81:844 82:521 83:528 84:620
85:1151 86:399 87:930 88:356 89:1598 90:237
91:4251 92:536 93:1541 94:1303 95:1101 96:426
97:286 98:936 99:37 101:225 103:426 106:69
107:83 108:72 109:1159 110:663 111:797 112:341
113:486 114:620 115:714 116:882 117:723 118:876
119:1259 120:343 121:688 122:1566 123:1010 124:1352
125:1355 128:244 129:190 130:164 131:626 132:148
133:21 134:221 135:54 136:212 137:134 138:286
139:123 140:486 141:317 142:391 143:411 144:490
145:64 146:465 147:219 148:640 149:266 150:165
151:194 152:446 153:178 154:7 155:385 156:208
157:361 158:154 159:485 160:333 161:214 162:371
163:173 164:507 165:368 166:541 167:438 168:820
169:145 170:880 171:86 172:4 173:1706 174:679
175:419 176:278 177:365 178:1075 180:1139 181:36
182:652 183:219 184:387 185:1 186:1277 187:766
188:1006 189:1136 190:5157 192:5932 193:5047 194:3552
195:3111 196:1249 197:166 198:3629 199:4156 200:5511
201:1694 202:8573 203:8486 204:4309 205:2371 206:2672
207:2817 208:4041 209:3584 210:2715 211:1456 212:2081
213:1781 214:815 215:96 216:4925 217:1603 218:563
219:342 220:1254 221:514 222:322 223:269
End of report