Routing Table Report 04:00 +10GMT Thu 15 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 385839
Prefixes after maximum aggregation: 167802
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188488
Total ASes present in the Internet Routing Table: 39593
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 32524
Origin ASes announcing only one prefix: 15514
Transit ASes present in the Internet Routing Table: 5330
Transit-only ASes present in the Internet Routing Table: 146
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: 1900
Unregistered ASNs in the Routing Table: 990
Number of 32-bit ASNs allocated by the RIRs: 2086
Number of 32-bit ASNs visible in the Routing Table: 1739
Prefixes from 32-bit ASNs in the Routing Table: 4149
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2501704192
Equivalent to 149 /8s, 28 /16s and 250 /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: 162906
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95516
Total APNIC prefixes after maximum aggregation: 31259
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91940
Unique aggregates announced from the APNIC address blocks: 38476
APNIC Region origin ASes present in the Internet Routing Table: 4604
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 724
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 123
Number of APNIC addresses announced to Internet: 631606624
Equivalent to 37 /8s, 165 /16s and 141 /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: 146472
Total ARIN prefixes after maximum aggregation: 74834
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118583
Unique aggregates announced from the ARIN address blocks: 48706
ARIN Region origin ASes present in the Internet Routing Table: 14811
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5671
ARIN Region transit ASes present in the Internet Routing Table: 1573
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: 804472512
Equivalent to 47 /8s, 243 /16s and 70 /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: 95050
Total RIPE prefixes after maximum aggregation: 51621
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87346
Unique aggregates announced from the RIPE address blocks: 55004
RIPE Region origin ASes present in the Internet Routing Table: 16194
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2562
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: 1211
Number of RIPE addresses announced to Internet: 494219200
Equivalent to 29 /8s, 117 /16s and 47 /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: 36031
Total LACNIC prefixes after maximum aggregation: 7946
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 35528
Unique aggregates announced from the LACNIC address blocks: 18474
LACNIC Region origin ASes present in the Internet Routing Table: 1553
LACNIC Prefixes per ASN: 22.88
LACNIC Region origin ASes announcing only one prefix: 440
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 389
Number of LACNIC addresses announced to Internet: 94561664
Equivalent to 5 /8s, 162 /16s and 229 /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: 8452
Total AfriNIC prefixes after maximum aggregation: 2070
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6495
Unique aggregates announced from the AfriNIC address blocks: 2073
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 12.89
AfriNIC Region origin ASes announcing only one prefix: 159
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: 30854400
Equivalent to 1 /8s, 214 /16s and 205 /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 2509 11104 971 Korea Telecom (KIX)
17974 1703 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1631 303 86 TPG Internet Pty Ltd
4755 1515 385 158 TATA Communications formerly
7552 1427 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
4808 1076 2034 303 CNCGROUP IP network: China169
24560 996 385 167 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 3480 3814 221 bellsouth.net, inc.
7029 2917 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
4323 1618 1073 386 Time Warner Telecom
20115 1604 1549 626 Charter Communications
22773 1512 2909 104 Cox Communications, Inc.
30036 1459 261 678 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1305 7013 855 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 1665 480 15 Corbina telecom
15557 1036 2161 64 LDCOM NETWORKS
2118 1034 99 14 EUnet/RELCOM Autonomous Syste
6830 646 1927 412 UPC Distribution Services
34984 625 132 195 BILISIM TELEKOM
12479 549 630 48 Uni2 Autonomous System
20940 543 176 432 Akamai Technologies European
3320 532 8162 398 Deutsche Telekom AG
3292 480 2106 407 TDC Tele Danmark
8866 462 134 27 Bulgarian Telecommunication C
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 1717 318 155 TVCABLE BOGOTA
28573 1563 1062 74 NET Servicos de Comunicao S.A
8151 1457 2985 347 UniNet S.A. de C.V.
7303 1240 751 175 Telecom Argentina Stet-France
27947 617 73 92 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
6503 551 434 68 AVANTEL, S.A.
3816 538 235 102 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 963 958 13 TEDATA
24863 789 146 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 188 80 8 RAYA Telecom - Egypt
16637 160 664 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 3480 3814 221 bellsouth.net, inc.
7029 2917 1017 200 Windstream Communications Inc
4766 2509 11104 971 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1855 680 121 PaeTec Communications, Inc.
10620 1717 318 155 TVCABLE BOGOTA
17974 1703 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1665 480 15 Corbina telecom
7545 1631 303 86 TPG Internet Pty Ltd
4323 1618 1073 386 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 2917 2717 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1855 1734 PaeTec Communications, Inc.
17974 1703 1665 PT TELEKOMUNIKASI INDONESIA
8402 1665 1650 Corbina telecom
10620 1717 1562 TVCABLE BOGOTA
7545 1631 1545 TPG Internet Pty Ltd
4766 2509 1538 Korea Telecom (KIX)
28573 1563 1489 NET Servicos de Comunicao S.A
7552 1427 1420 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
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.1.224.0/21 51059 Brightbox Systems Ltd
37.7.0.0/16 8374 Polkomtel S.A.
37.8.0.0/18 15975 Palnet Communications Ltd. AS
37.8.128.0/20 20875 HPT Mostar
37.8.144.0/20 42038 VladLink LTD AS
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
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 /12:237
/13:465 /14:813 /15:1444 /16:12046 /17:6104 /18:10162
/19:20079 /20:27858 /21:28121 /22:38281 /23:35788 /24:200755
/25:1178 /26:1409 /27:783 /28:169 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2545 2917 Windstream Communications Inc
6389 2123 3480 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1640 1665 Corbina telecom
10620 1612 1717 TVCABLE BOGOTA
30036 1419 1459 Mediacom Communications Corp
11492 1105 1142 Cable One
1785 1059 1855 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
15557 992 1036 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:440 2:487 4:15 5:1 6:3 8:360
12:1943 13:1 14:559 15:11 16:3 17:7
20:9 23:73 24:1696 27:1116 31:729 32:67
33:2 34:2 36:4 38:774 39:1 40:114
41:2933 42:77 43:1 44:3 46:1138 47:3
49:276 50:463 52:13 55:5 56:2 57:45
58:939 59:486 60:342 61:1184 62:939 63:1971
64:4102 65:2302 66:4371 67:2006 68:1183 69:3129
70:917 71:378 72:1777 74:2638 75:432 76:320
77:939 78:884 79:442 80:1173 81:849 82:528
83:527 84:568 85:1165 86:731 87:899 88:342
89:1590 90:248 91:4354 92:541 93:1539 94:1316
95:1129 96:397 97:286 98:772 99:38 101:125
103:542 106:11 107:110 108:98 109:1399 110:671
111:822 112:379 113:487 114:612 115:705 116:880
117:715 118:881 119:1281 120:343 121:678 122:1552
123:1027 124:1371 125:1341 128:351 129:188 130:184
131:573 132:162 133:21 134:226 135:54 136:213
137:151 138:286 139:122 140:483 141:255 142:381
143:390 144:490 145:66 146:476 147:222 148:635
149:272 150:164 151:192 152:445 153:171 154:7
155:382 156:209 157:364 158:155 159:504 160:341
161:221 162:362 163:184 164:522 165:389 166:542
167:458 168:817 169:146 170:826 171:93 172:4
173:1791 174:595 175:418 176:359 177:433 178:1139
180:1200 181:38 182:671 183:260 184:401 185:1
186:1296 187:787 188:949 189:1183 190:4906 192:5975
193:5127 194:4284 195:3370 196:1285 197:173 198:3620
199:4225 200:5406 201:1664 202:8501 203:8501 204:4330
205:2406 206:2666 207:2843 208:4015 209:3562 210:2744
211:1465 212:1974 213:1798 214:824 215:95 216:4911
217:1491 218:582 219:344 220:1250 221:529 222:326
223:264
End of report
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