Routing Table Report 04:00 +10GMT Wed 07 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 383746
Prefixes after maximum aggregation: 167509
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188531
Total ASes present in the Internet Routing Table: 39502
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 32469
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5330
Transit-only ASes present in the Internet Routing Table: 142
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: 1862
Unregistered ASNs in the Routing Table: 954
Number of 32-bit ASNs allocated by the RIRs: 2045
Number of 32-bit ASNs visible in the Routing Table: 1703
Prefixes from 32-bit ASNs in the Routing Table: 4023
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2498525696
Equivalent to 148 /8s, 236 /16s and 122 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
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: 162154
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95263
Total APNIC prefixes after maximum aggregation: 31206
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91745
Unique aggregates announced from the APNIC address blocks: 38480
APNIC Region origin ASes present in the Internet Routing Table: 4604
APNIC Prefixes per ASN: 19.93
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 731
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: 116
Number of APNIC addresses announced to Internet: 631113312
Equivalent to 37 /8s, 158 /16s and 6 /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: 146265
Total ARIN prefixes after maximum aggregation: 74767
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118389
Unique aggregates announced from the ARIN address blocks: 48673
ARIN Region origin ASes present in the Internet Routing Table: 14788
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5645
ARIN Region transit ASes present in the Internet Routing Table: 1576
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: 803358656
Equivalent to 47 /8s, 226 /16s and 71 /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: 92985
Total RIPE prefixes after maximum aggregation: 51451
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 85225
Unique aggregates announced from the RIPE address blocks: 54771
RIPE Region origin ASes present in the Internet Routing Table: 16165
RIPE Prefixes per ASN: 5.27
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2546
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: 1194
Number of RIPE addresses announced to Internet: 492785088
Equivalent to 29 /8s, 95 /16s and 77 /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: 36637
Total LACNIC prefixes after maximum aggregation: 7976
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36057
Unique aggregates announced from the LACNIC address blocks: 18808
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.20
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 288
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: 94478464
Equivalent to 5 /8s, 161 /16s and 160 /24s
Percentage of available LACNIC address space announced: 62.6
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: 8388
Total AfriNIC prefixes after maximum aggregation: 2036
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6452
Unique aggregates announced from the AfriNIC address blocks: 2013
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 12.83
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 109
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: 30130176
Equivalent to 1 /8s, 203 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 44.9
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 2511 11105 974 Korea Telecom (KIX)
17974 1661 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 84 TPG Internet Pty Ltd
4755 1511 385 158 TATA Communications formerly
7552 1386 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1099 80 500 Sify Limited
4808 1080 2038 305 CNCGROUP IP network: China169
24560 983 382 162 Bharti Airtel Ltd., Telemedia
18101 958 121 155 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 3482 3814 222 bellsouth.net, inc.
7029 2914 1016 199 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1853 680 121 PaeTec Communications, Inc.
4323 1613 1073 385 Time Warner Telecom
20115 1605 1549 626 Charter Communications
22773 1504 2909 104 Cox Communications, Inc.
30036 1437 257 676 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1311 7029 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 1632 480 15 Corbina telecom
6830 644 1927 412 UPC Distribution Services
34984 616 116 195 BILISIM TELEKOM
20940 546 174 437 Akamai Technologies European
3320 517 8168 390 Deutsche Telekom AG
12479 494 601 13 Uni2 Autonomous System
3292 480 2106 407 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 421 366 45 Bezeq International
31148 414 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 1703 315 180 TVCABLE BOGOTA
28573 1528 1057 82 NET Servicos de Comunicao S.A
8151 1457 2985 346 UniNet S.A. de C.V.
7303 1239 751 174 Telecom Argentina Stet-France
27947 615 72 91 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
6503 553 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 547 237 89 Empresa Nacional de Telecomun
11172 529 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
8452 967 958 13 TEDATA
24863 785 146 35 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 160 662 82 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 3482 3814 222 bellsouth.net, inc.
7029 2914 1016 199 Windstream Communications Inc
4766 2511 11105 974 Korea Telecom (KIX)
18566 2094 383 177 Covad Communications
1785 1853 680 121 PaeTec Communications, Inc.
10620 1703 315 180 TVCABLE BOGOTA
17974 1661 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1632 480 15 Corbina telecom
7545 1629 303 84 TPG Internet Pty Ltd
4323 1613 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 2914 2715 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1853 1732 PaeTec Communications, Inc.
17974 1661 1623 PT TELEKOMUNIKASI INDONESIA
8402 1632 1617 Corbina telecom
7545 1629 1545 TPG Internet Pty Ltd
4766 2511 1537 Korea Telecom (KIX)
10620 1703 1523 TVCABLE BOGOTA
28573 1528 1446 NET Servicos de Comunicao S.A
22773 1504 1400 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
41.223.92.0/22 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
66.207.32.0/20 23011 >>UNKNOWN<<
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 /14:810 /15:1437 /16:12054 /17:6111 /18:10154
/19:20049 /20:27752 /21:28013 /22:38136 /23:35771 /24:199069
/25:1182 /26:1406 /27:785 /28:169 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2543 2914 Windstream Communications Inc
6389 2125 3482 bellsouth.net, inc.
18566 2043 2094 Covad Communications
8402 1607 1632 Corbina telecom
10620 1598 1703 TVCABLE BOGOTA
30036 1397 1437 Mediacom Communications Corp
11492 1119 1156 Cable One
1785 1058 1853 PaeTec Communications, Inc.
7011 1052 1169 Citizens Utilities
22773 964 1504 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:444 2:480 4:15 5:1 6:3 8:360
12:1947 13:1 14:556 15:11 16:3 17:7
20:9 23:71 24:1694 27:1076 31:717 32:67
33:2 34:2 36:4 38:773 39:1 40:114
41:2907 42:67 43:1 44:3 46:1116 47:3
49:292 50:457 52:13 55:6 56:2 57:49
58:942 59:485 60:359 61:1180 62:914 63:1966
64:4066 65:2314 66:4359 67:1999 68:1176 69:3156
70:904 71:361 72:1777 74:2639 75:431 76:320
77:938 78:885 79:435 80:1143 81:844 82:525
83:526 84:471 85:1167 86:410 87:913 88:354
89:1589 90:246 91:4329 92:536 93:1431 94:1321
95:1120 96:392 97:285 98:767 99:38 101:121
103:523 106:7 107:104 108:95 109:1122 110:666
111:819 112:367 113:487 114:615 115:703 116:893
117:708 118:871 119:1247 120:349 121:670 122:1557
123:1023 124:1347 125:1348 128:320 129:186 130:181
131:579 132:157 133:21 134:223 135:54 136:213
137:147 138:287 139:123 140:491 141:253 142:381
143:420 144:506 145:66 146:474 147:221 148:643
149:270 150:166 151:192 152:445 153:171 154:7
155:381 156:210 157:356 158:156 159:526 160:334
161:221 162:364 163:178 164:523 165:386 166:541
167:457 168:810 169:146 170:824 171:90 172:4
173:1767 174:588 175:417 176:343 177:408 178:1143
180:1186 181:38 182:673 183:244 184:409 185:1
186:1416 187:781 188:943 189:1162 190:5253 192:5972
193:5126 194:3556 195:3114 196:1287 197:169 198:3621
199:4242 200:5523 201:1692 202:8474 203:8493 204:4328
205:2407 206:2670 207:2839 208:4017 209:3555 210:2740
211:1474 212:1970 213:1799 214:819 215:91 216:4932
217:1492 218:577 219:340 220:1252 221:527 222:325
223:241
End of report
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