Routing Table Report 04:00 +10GMT Mon 21 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382667
Prefixes after maximum aggregation: 166925
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187878
Total ASes present in the Internet Routing Table: 39350
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32427
Origin ASes announcing only one prefix: 15479
Transit ASes present in the Internet Routing Table: 5280
Transit-only ASes present in the Internet Routing Table: 135
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: 1748
Unregistered ASNs in the Routing Table: 901
Number of 32-bit ASNs allocated by the RIRs: 1972
Number of 32-bit ASNs visible in the Routing Table: 1643
Prefixes from 32-bit ASNs in the Routing Table: 3825
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2491295104
Equivalent to 148 /8s, 126 /16s and 37 /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: 161769
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95258
Total APNIC prefixes after maximum aggregation: 31167
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91713
Unique aggregates announced from the APNIC address blocks: 38483
APNIC Region origin ASes present in the Internet Routing Table: 4609
APNIC Prefixes per ASN: 19.90
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 710
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 109
Number of APNIC addresses announced to Internet: 630274400
Equivalent to 37 /8s, 145 /16s and 57 /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: 145891
Total ARIN prefixes after maximum aggregation: 74489
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118095
Unique aggregates announced from the ARIN address blocks: 48633
ARIN Region origin ASes present in the Internet Routing Table: 14749
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1570
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: 803156160
Equivalent to 47 /8s, 223 /16s and 48 /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: 92527
Total RIPE prefixes after maximum aggregation: 51221
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84756
Unique aggregates announced from the RIPE address blocks: 54449
RIPE Region origin ASes present in the Internet Routing Table: 16123
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7984
RIPE Region transit ASes present in the Internet Routing Table: 2534
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: 1143
Number of RIPE addresses announced to Internet: 492544192
Equivalent to 29 /8s, 91 /16s and 160 /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: 36308
Total LACNIC prefixes after maximum aggregation: 7930
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35763
Unique aggregates announced from the LACNIC address blocks: 18650
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.06
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 284
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 375
Number of LACNIC addresses announced to Internet: 93152128
Equivalent to 5 /8s, 141 /16s and 99 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8676
Total AfriNIC prefixes after maximum aggregation: 2045
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6729
Unique aggregates announced from the AfriNIC address blocks: 2051
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 110
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: 27779072
Equivalent to 1 /8s, 167 /16s and 224 /24s
Percentage of available AfriNIC address space announced: 41.4
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 2512 11105 969 Korea Telecom (KIX)
17974 1645 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4755 1530 377 169 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1099 2073 311 CNCGROUP IP network: China169
9583 1095 81 495 Sify Limited
24560 965 343 218 Bharti Airtel Ltd., Telemedia
18101 952 119 148 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 3486 3814 219 bellsouth.net, inc.
7029 2909 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
4323 1614 1078 389 Time Warner Telecom
20115 1598 1546 624 Charter Communications
22773 1500 2909 103 Cox Communications, Inc.
30036 1429 257 671 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1314 7030 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 1609 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 601 112 188 BILISIM TELEKOM
20940 554 183 436 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
12479 484 596 9 Uni2 Autonomous System
3292 480 2106 408 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
8551 415 366 45 Bezeq International
31148 409 22 114 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 1695 314 176 TVCABLE BOGOTA
28573 1499 1044 70 NET Servicos de Comunicao S.A
8151 1448 2972 345 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 608 72 86 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 555 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 539 234 96 Empresa Nacional de Telecomun
11172 529 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 779 146 36 LINKdotNET AS number
8452 674 446 12 TEDATA
15475 445 74 8 Nile Online
36992 282 415 20 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 3486 3814 219 bellsouth.net, inc.
7029 2909 1016 199 Windstream Communications Inc
4766 2512 11105 969 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
10620 1695 314 176 TVCABLE BOGOTA
17974 1645 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4323 1614 1078 389 Time Warner Telecom
8402 1609 416 14 Corbina 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 2909 2710 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1727 PaeTec Communications, Inc.
17974 1645 1609 PT TELEKOMUNIKASI INDONESIA
8402 1609 1595 Corbina telecom
4766 2512 1543 Korea Telecom (KIX)
7545 1627 1540 TPG Internet Pty Ltd
10620 1695 1519 TVCABLE BOGOTA
28573 1499 1429 NET Servicos de Comunicao S.A
22773 1500 1397 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 /14:807 /15:1427 /16:12010 /17:6087 /18:10128
/19:20003 /20:27677 /21:27872 /22:37926 /23:35501 /24:198946
/25:1153 /26:1362 /27:759 /28:161 /29:3 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2538 2909 Windstream Communications Inc
6389 2128 3486 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1590 1695 TVCABLE BOGOTA
8402 1585 1609 Corbina telecom
30036 1389 1429 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 960 1500 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:421 2:488 4:15 5:1 6:3 8:357
12:1961 13:1 14:549 15:11 16:3 17:7
20:9 23:63 24:1686 27:1027 31:703 32:65
33:2 34:2 36:4 38:765 39:1 40:109
41:2737 42:61 43:1 44:3 46:1055 47:3
49:295 50:455 52:13 55:7 56:2 57:49
58:929 59:491 60:360 61:1153 62:1095 63:1965
64:4071 65:2302 66:4336 67:2014 68:1172 69:3145
70:904 71:383 72:1815 74:2641 75:431 76:320
77:891 78:890 79:450 80:1138 81:839 82:513
83:518 84:622 85:1152 86:404 87:907 88:357
89:1598 90:235 91:4275 92:538 93:1445 94:1313
95:1115 96:428 97:285 98:792 99:37 101:243
103:499 106:1 107:95 108:81 109:1188 110:673
111:807 112:363 113:497 114:596 115:716 116:878
117:717 118:893 119:1266 120:321 121:670 122:1575
123:1028 124:1364 125:1345 128:280 129:184 130:176
131:635 132:155 133:21 134:228 135:54 136:212
137:146 138:285 139:122 140:493 141:250 142:386
143:400 144:497 145:65 146:472 147:218 148:631
149:263 150:163 151:192 152:448 153:172 154:7
155:390 156:208 157:358 158:156 159:493 160:328
161:215 162:371 163:174 164:518 165:369 166:541
167:444 168:824 169:146 170:826 171:87 172:4
173:1751 174:588 175:436 176:325 177:392 178:1117
180:1149 181:39 182:658 183:240 184:396 185:1
186:1406 187:778 188:980 189:1150 190:5209 192:5934
193:5052 194:3549 195:3108 196:1275 197:166 198:3612
199:4216 200:5533 201:1708 202:8557 203:8551 204:4310
205:2397 206:2590 207:2830 208:4030 209:3574 210:2736
211:1452 212:2014 213:1806 214:802 215:97 216:4919
217:1609 218:569 219:340 220:1253 221:509 222:327
223:280
End of report
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