Routing Table Report 04:00 +10GMT Wed 16 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382108
Prefixes after maximum aggregation: 166827
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187581
Total ASes present in the Internet Routing Table: 39328
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32417
Origin ASes announcing only one prefix: 15509
Transit ASes present in the Internet Routing Table: 5280
Transit-only ASes present in the Internet Routing Table: 132
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: 1712
Unregistered ASNs in the Routing Table: 895
Number of 32-bit ASNs allocated by the RIRs: 1948
Number of 32-bit ASNs visible in the Routing Table: 1631
Prefixes from 32-bit ASNs in the Routing Table: 3774
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 86
Number of addresses announced to Internet: 2490022528
Equivalent to 148 /8s, 106 /16s and 186 /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: 161495
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95083
Total APNIC prefixes after maximum aggregation: 31152
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91550
Unique aggregates announced from the APNIC address blocks: 38403
APNIC Region origin ASes present in the Internet Routing Table: 4599
APNIC Prefixes per ASN: 19.91
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 711
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: 110
Number of APNIC addresses announced to Internet: 630000992
Equivalent to 37 /8s, 141 /16s and 13 /24s
Percentage of available APNIC address space announced: 79.9
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: 145948
Total ARIN prefixes after maximum aggregation: 74494
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118083
Unique aggregates announced from the ARIN address blocks: 48495
ARIN Region origin ASes present in the Internet Routing Table: 14751
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5646
ARIN Region transit ASes present in the Internet Routing Table: 1572
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: 803059904
Equivalent to 47 /8s, 221 /16s and 184 /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: 92274
Total RIPE prefixes after maximum aggregation: 51135
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84544
Unique aggregates announced from the RIPE address blocks: 54402
RIPE Region origin ASes present in the Internet Routing Table: 16125
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7990
RIPE Region transit ASes present in the Internet Routing Table: 2538
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: 1134
Number of RIPE addresses announced to Internet: 491967296
Equivalent to 29 /8s, 82 /16s and 211 /24s
Percentage of available RIPE address space announced: 79.3
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: 36266
Total LACNIC prefixes after maximum aggregation: 7919
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35707
Unique aggregates announced from the LACNIC address blocks: 18620
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 23.05
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 281
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: 371
Number of LACNIC addresses announced to Internet: 93077888
Equivalent to 5 /8s, 140 /16s and 65 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8582
Total AfriNIC prefixes after maximum aggregation: 2052
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6641
Unique aggregates announced from the AfriNIC address blocks: 2042
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 158
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: 27695360
Equivalent to 1 /8s, 166 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 41.3
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 2510 11108 968 Korea Telecom (KIX)
17974 1641 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 88 TPG Internet Pty Ltd
4755 1527 378 170 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
4808 1099 2097 317 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 149 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 219 bellsouth.net, inc.
7029 2919 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1848 680 122 PaeTec Communications, Inc.
4323 1613 1077 387 Time Warner Telecom
20115 1595 1545 625 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1421 256 669 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1310 7029 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 1530 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 600 112 188 BILISIM TELEKOM
20940 552 182 434 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
3292 478 2106 406 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
8551 403 354 43 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 1706 316 157 TVCABLE BOGOTA
28573 1488 1043 79 NET Servicos de Comunicao S.A
8151 1446 2953 347 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 598 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 565 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 539 234 96 Empresa Nacional de Telecomun
11172 525 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
24863 757 146 36 LINKdotNET AS number
8452 685 446 12 TEDATA
15475 443 74 8 Nile Online
36992 283 415 21 Etisalat MISR
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 212 13 14 Starcomms Nigeria Limited
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 219 bellsouth.net, inc.
7029 2919 1016 199 Windstream Communications Inc
4766 2510 11108 968 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 122 PaeTec Communications, Inc.
10620 1706 316 157 TVCABLE BOGOTA
17974 1641 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1628 303 88 TPG Internet Pty Ltd
4323 1613 1077 387 Time Warner Telecom
20115 1595 1545 625 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 2919 2720 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1726 PaeTec Communications, Inc.
17974 1641 1605 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
4766 2510 1542 Korea Telecom (KIX)
7545 1628 1540 TPG Internet Pty Ltd
8402 1530 1516 Corbina telecom
28573 1488 1409 NET Servicos de Comunicao S.A
22773 1496 1393 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
128.0.0.0/16 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 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 /14:808 /15:1423 /16:12008 /17:6065 /18:10115
/19:19979 /20:27645 /21:27788 /22:37839 /23:35374 /24:198775
/25:1148 /26:1364 /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
7029 2549 2919 Windstream Communications Inc
6389 2184 3543 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1506 1530 Corbina telecom
30036 1381 1421 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
22773 958 1496 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:489 4:15 5:1 6:3 8:355
12:1966 13:1 14:549 15:11 16:3 17:7
20:9 23:63 24:1682 27:1034 31:697 32:65
33:2 34:2 36:4 38:759 39:1 40:110
41:2681 42:60 43:1 44:3 46:1042 47:3
49:294 50:453 52:13 55:7 56:2 57:47
58:919 59:490 60:356 61:1133 62:1084 63:1965
64:4063 65:2300 66:4322 67:2016 68:1176 69:3140
70:905 71:389 72:1820 74:2631 75:430 76:319
77:890 78:889 79:491 80:1138 81:838 82:511
83:518 84:622 85:1156 86:403 87:903 88:355
89:1597 90:236 91:4259 92:536 93:1442 94:1308
95:1099 96:427 97:285 98:819 99:37 101:234
103:471 106:7 107:93 108:79 109:1181 110:672
111:801 112:358 113:485 114:621 115:712 116:877
117:719 118:889 119:1273 120:350 121:670 122:1580
123:1020 124:1351 125:1352 128:253 129:184 130:167
131:629 132:155 133:21 134:223 135:54 136:213
137:146 138:287 139:121 140:493 141:253 142:389
143:411 144:497 145:65 146:470 147:219 148:638
149:267 150:164 151:194 152:449 153:172 154:7
155:389 156:208 157:361 158:155 159:490 160:333
161:209 162:374 163:174 164:511 165:369 166:542
167:444 168:821 169:147 170:880 171:87 172:4
173:1747 174:595 175:432 176:299 177:377 178:1104
180:1144 181:39 182:655 183:238 184:396 185:1
186:1420 187:784 188:967 189:1153 190:5218 192:5933
193:5056 194:3549 195:3110 196:1276 197:168 198:3615
199:4221 200:5529 201:1703 202:8536 203:8541 204:4302
205:2377 206:2658 207:2811 208:4019 209:3584 210:2730
211:1466 212:1999 213:1804 214:819 215:97 216:4914
217:1604 218:571 219:338 220:1257 221:518 222:325
223:279
End of report
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