Routing Table Report 04:00 +10GMT Fri 16 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 386766
Prefixes after maximum aggregation: 167826
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 187509
Total ASes present in the Internet Routing Table: 39603
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32528
Origin ASes announcing only one prefix: 15511
Transit ASes present in the Internet Routing Table: 5333
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: 1914
Unregistered ASNs in the Routing Table: 995
Number of 32-bit ASNs allocated by the RIRs: 2092
Number of 32-bit ASNs visible in the Routing Table: 1742
Prefixes from 32-bit ASNs in the Routing Table: 4162
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2504413440
Equivalent to 149 /8s, 70 /16s and 81 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
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: 163544
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95659
Total APNIC prefixes after maximum aggregation: 31258
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 92064
Unique aggregates announced from the APNIC address blocks: 38479
APNIC Region origin ASes present in the Internet Routing Table: 4607
APNIC Prefixes per ASN: 19.98
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 725
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: 631646304
Equivalent to 37 /8s, 166 /16s and 40 /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: 146487
Total ARIN prefixes after maximum aggregation: 74829
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118597
Unique aggregates announced from the ARIN address blocks: 48711
ARIN Region origin ASes present in the Internet Routing Table: 14807
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5667
ARIN Region transit ASes present in the Internet Routing Table: 1571
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: 804494272
Equivalent to 47 /8s, 243 /16s and 155 /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: 95100
Total RIPE prefixes after maximum aggregation: 51652
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87210
Unique aggregates announced from the RIPE address blocks: 53588
RIPE Region origin ASes present in the Internet Routing Table: 16201
RIPE Prefixes per ASN: 5.38
RIPE Region origin ASes announcing only one prefix: 7997
RIPE Region transit ASes present in the Internet Routing Table: 2566
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: 1209
Number of RIPE addresses announced to Internet: 496756160
Equivalent to 29 /8s, 155 /16s and 229 /24s
Percentage of available RIPE address space announced: 80.0
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: 36742
Total LACNIC prefixes after maximum aggregation: 7948
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36255
Unique aggregates announced from the LACNIC address blocks: 18891
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.30
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 285
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: 394
Number of LACNIC addresses announced to Internet: 94741632
Equivalent to 5 /8s, 165 /16s and 164 /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: 2067
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6489
Unique aggregates announced from the AfriNIC address blocks: 2081
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 12.90
AfriNIC Region origin ASes announcing only one prefix: 160
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: 30830080
Equivalent to 1 /8s, 214 /16s and 110 /24s
Percentage of available AfriNIC address space announced: 45.9
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 2510 11104 971 Korea Telecom (KIX)
17974 1701 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1632 303 86 TPG Internet Pty Ltd
4755 1514 385 158 TATA Communications formerly
7552 1486 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
4808 1077 2034 304 CNCGROUP IP network: China169
24560 996 385 167 Bharti Airtel Ltd., Telemedia
18101 965 122 158 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 218 bellsouth.net, inc.
7029 2918 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
4323 1620 1073 386 Time Warner Telecom
20115 1604 1549 626 Charter Communications
22773 1513 2909 105 Cox Communications, Inc.
30036 1460 261 677 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 1653 480 15 Corbina telecom
15557 1036 2161 64 LDCOM NETWORKS
2118 1033 99 14 EUnet/RELCOM Autonomous Syste
6830 647 1928 413 UPC Distribution Services
34984 625 132 195 BILISIM TELEKOM
12479 549 630 48 Uni2 Autonomous System
20940 544 176 433 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 1574 1064 75 NET Servicos de Comunicao S.A
8151 1461 2987 347 UniNet S.A. de C.V.
7303 1247 751 175 Telecom Argentina Stet-France
27947 618 73 92 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 963 958 13 TEDATA
24863 790 146 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 3482 3814 218 bellsouth.net, inc.
7029 2918 1017 200 Windstream Communications Inc
4766 2510 11104 971 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
10620 1717 318 155 TVCABLE BOGOTA
17974 1701 503 38 PT TELEKOMUNIKASI INDONESIA
8402 1653 480 15 Corbina telecom
7545 1632 303 86 TPG Internet Pty Ltd
4323 1620 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 2918 2718 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1727 PaeTec Communications, Inc.
17974 1701 1663 PT TELEKOMUNIKASI INDONESIA
8402 1653 1638 Corbina telecom
10620 1717 1562 TVCABLE BOGOTA
7545 1632 1546 TPG Internet Pty Ltd
4766 2510 1539 Korea Telecom (KIX)
28573 1574 1499 NET Servicos de Comunicao S.A
7552 1486 1479 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
37.9.0.0/19 44050 RIPE Network Coordination Cen
37.9.48.0/20 44050 RIPE Network Coordination Cen
37.9.144.0/20 8439 AIST Autonomous System
37.9.168.0/21 51013 Websupport s.r.o.
37.9.192.0/21 25424 INTERNEXT 2000 S.R.O.
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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:813 /15:1444 /16:12049 /17:6104 /18:10168
/19:20117 /20:27929 /21:28149 /22:38276 /23:35834 /24:201489
/25:1180 /26:1409 /27:784 /28:171 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2546 2918 Windstream Communications Inc
6389 2124 3482 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1628 1653 Corbina telecom
10620 1612 1717 TVCABLE BOGOTA
30036 1420 1460 Mediacom Communications Corp
11492 1105 1142 Cable One
1785 1057 1848 PaeTec Communications, Inc.
7011 1032 1149 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)
----------------------------------------------
1:450 2:436 4:15 5:1 6:3 8:360
12:1944 13:1 14:558 15:11 16:3 17:7
20:9 23:74 24:1700 27:1118 31:732 32:67
33:2 34:2 36:4 38:775 39:1 40:114
41:2936 42:78 43:1 44:3 46:1133 47:3
49:277 50:463 52:13 55:5 56:2 57:44
58:955 59:484 60:342 61:1184 62:939 63:1965
64:4108 65:2301 66:4371 67:2006 68:1183 69:3131
70:918 71:378 72:1777 74:2640 75:432 76:320
77:937 78:857 79:442 80:1170 81:848 82:525
83:530 84:570 85:1161 86:731 87:899 88:342
89:1583 90:248 91:4362 92:543 93:1508 94:1315
95:1083 96:397 97:286 98:773 99:38 101:131
103:556 106:11 107:112 108:98 109:1401 110:673
111:823 112:379 113:489 114:600 115:705 116:881
117:716 118:893 119:1236 120:342 121:680 122:1557
123:1026 124:1383 125:1340 128:535 129:189 130:184
131:570 132:162 133:21 134:226 135:54 136:213
137:151 138:286 139:124 140:483 141:255 142:382
143:390 144:489 145:66 146:476 147:222 148:634
149:272 150:164 151:192 152:445 153:171 154:7
155:382 156:210 157:364 158:155 159:504 160:341
161:221 162:362 163:185 164:520 165:388 166:542
167:459 168:817 169:146 170:821 171:93 172:4
173:1790 174:599 175:417 176:330 177:434 178:1142
180:1200 181:38 182:672 183:260 184:403 185:1
186:1417 187:786 188:949 189:1179 190:5283 192:5974
193:5126 194:4282 195:3372 196:1286 197:173 198:3620
199:4227 200:5506 201:1714 202:8495 203:8508 204:4345
205:2405 206:2667 207:2843 208:4020 209:3566 210:2752
211:1474 212:1977 213:1798 214:818 215:93 216:4926
217:1501 218:576 219:351 220:1250 221:518 222:326
223:264
End of report
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