Routing Table Report 04:00 +10GMT Tue 13 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 384921
Prefixes after maximum aggregation: 167615
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188800
Total ASes present in the Internet Routing Table: 39542
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32463
Origin ASes announcing only one prefix: 15504
Transit ASes present in the Internet Routing Table: 5357
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: 1880
Unregistered ASNs in the Routing Table: 980
Number of 32-bit ASNs allocated by the RIRs: 2076
Number of 32-bit ASNs visible in the Routing Table: 1722
Prefixes from 32-bit ASNs in the Routing Table: 4092
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 78
Number of addresses announced to Internet: 2500418560
Equivalent to 149 /8s, 9 /16s and 92 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
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: 162477
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95504
Total APNIC prefixes after maximum aggregation: 31245
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91969
Unique aggregates announced from the APNIC address blocks: 38488
APNIC Region origin ASes present in the Internet Routing Table: 4602
APNIC Prefixes per ASN: 19.98
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 728
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: 120
Number of APNIC addresses announced to Internet: 631247968
Equivalent to 37 /8s, 160 /16s and 20 /24s
Percentage of available APNIC address space announced: 80.1
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: 146322
Total ARIN prefixes after maximum aggregation: 74748
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118432
Unique aggregates announced from the ARIN address blocks: 48658
ARIN Region origin ASes present in the Internet Routing Table: 14799
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1578
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: 803368384
Equivalent to 47 /8s, 226 /16s and 109 /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: 93588
Total RIPE prefixes after maximum aggregation: 51552
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 85907
Unique aggregates announced from the RIPE address blocks: 54938
RIPE Region origin ASes present in the Internet Routing Table: 16177
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 7989
RIPE Region transit ASes present in the Internet Routing Table: 2568
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: 1203
Number of RIPE addresses announced to Internet: 494110400
Equivalent to 29 /8s, 115 /16s and 134 /24s
Percentage of available RIPE address space announced: 79.6
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: 36799
Total LACNIC prefixes after maximum aggregation: 7939
LACNIC Deaggregation factor: 4.64
Prefixes being announced from the LACNIC address blocks: 36281
Unique aggregates announced from the LACNIC address blocks: 18917
LACNIC Region origin ASes present in the Internet Routing Table: 1555
LACNIC Prefixes per ASN: 23.33
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 28
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 383
Number of LACNIC addresses announced to Internet: 94703232
Equivalent to 5 /8s, 165 /16s and 14 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8446
Total AfriNIC prefixes after maximum aggregation: 2059
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6494
Unique aggregates announced from the AfriNIC address blocks: 2067
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 12.99
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 30890496
Equivalent to 1 /8s, 215 /16s and 90 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2508 11104 970 Korea Telecom (KIX)
17974 1699 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 86 TPG Internet Pty Ltd
4755 1514 385 158 TATA Communications formerly
7552 1392 1064 7 Vietel Corporation
9829 1167 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
4808 1076 2034 303 CNCGROUP IP network: China169
24560 980 381 164 Bharti Airtel Ltd., Telemedia
18101 963 122 157 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 2916 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
4323 1617 1073 385 Time Warner Telecom
20115 1602 1548 628 Charter Communications
22773 1505 2909 104 Cox Communications, Inc.
30036 1446 258 676 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1310 7029 858 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 1650 480 15 Corbina telecom
6830 644 1927 412 UPC Distribution Services
34984 625 132 195 BILISIM TELEKOM
2118 550 99 14 EUnet/RELCOM Autonomous Syste
20940 545 175 435 Akamai Technologies European
3320 528 8161 394 Deutsche Telekom AG
12479 528 619 37 Uni2 Autonomous System
3292 480 2106 407 TDC Tele Danmark
8866 462 134 27 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 1721 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.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 552 434 68 AVANTEL, S.A.
3816 546 237 89 Empresa Nacional de Telecomun
11172 529 102 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
8452 959 958 13 TEDATA
24863 788 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
16637 164 664 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 3481 3814 218 bellsouth.net, inc.
7029 2916 1017 200 Windstream Communications Inc
4766 2508 11104 970 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
10620 1721 318 155 TVCABLE BOGOTA
17974 1699 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1650 480 15 Corbina telecom
7545 1631 303 86 TPG Internet Pty Ltd
4323 1617 1073 385 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 2916 2716 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1855 1734 PaeTec Communications, Inc.
17974 1699 1661 PT TELEKOMUNIKASI INDONESIA
8402 1650 1635 Corbina telecom
10620 1721 1566 TVCABLE BOGOTA
7545 1631 1545 TPG Internet Pty Ltd
4766 2508 1538 Korea Telecom (KIX)
28573 1546 1474 NET Servicos de Comunicao S.A
22773 1505 1401 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
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
66.180.239.0/24 35888 VIGNETTE CORPORATION
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 /15:1444 /16:12054 /17:6107 /18:10157
/19:20086 /20:27794 /21:28104 /22:38244 /23:35804 /24:199922
/25:1176 /26:1416 /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 2545 2916 Windstream Communications Inc
6389 2124 3481 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1625 1650 Corbina telecom
10620 1616 1721 TVCABLE BOGOTA
30036 1406 1446 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1060 1855 PaeTec Communications, Inc.
7011 1052 1169 Citizens Utilities
22773 966 1505 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:447 2:480 4:15 5:1 6:3 8:360
12:1945 13:1 14:559 15:11 16:3 17:7
20:8 23:72 24:1698 27:1112 31:728 32:67
33:2 34:2 36:4 38:772 39:1 40:114
41:2917 42:73 43:1 44:3 46:1129 47:3
49:275 50:459 52:13 55:5 56:2 57:45
58:948 59:486 60:342 61:1184 62:918 63:1968
64:4061 65:2306 66:4364 67:2008 68:1179 69:3118
70:916 71:362 72:1777 74:2640 75:430 76:319
77:939 78:882 79:439 80:1152 81:848 82:528
83:526 84:473 85:1170 86:410 87:905 88:341
89:1591 90:248 91:4350 92:542 93:1409 94:1330
95:1132 96:396 97:286 98:778 99:38 101:123
103:539 106:8 107:107 108:96 109:1092 110:672
111:824 112:377 113:489 114:613 115:704 116:879
117:714 118:882 119:1244 120:343 121:682 122:1564
123:1022 124:1372 125:1339 128:341 129:189 130:181
131:573 132:161 133:21 134:223 135:54 136:213
137:150 138:286 139:123 140:481 141:255 142:381
143:393 144:504 145:66 146:476 147:222 148:637
149:272 150:166 151:192 152:445 153:171 154:7
155:382 156:208 157:358 158:155 159:503 160:341
161:221 162:363 163:183 164:522 165:387 166:542
167:458 168:817 169:146 170:824 171:93 172:4
173:1788 174:600 175:417 176:358 177:426 178:1135
180:1198 181:38 182:668 183:256 184:400 185:1
186:1485 187:785 188:942 189:1172 190:5304 192:5975
193:5120 194:3788 195:3369 196:1282 197:172 198:3613
199:4219 200:5502 201:1709 202:8483 203:8523 204:4324
205:2401 206:2671 207:2842 208:4011 209:3566 210:2757
211:1471 212:1968 213:1798 214:822 215:95 216:4935
217:1493 218:579 219:344 220:1250 221:529 222:326
223:261
End of report
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