Routing Table Report 04:00 +10GMT Thu 17 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382322
Prefixes after maximum aggregation: 166850
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187731
Total ASes present in the Internet Routing Table: 39344
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32419
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5284
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: 899
Number of 32-bit ASNs allocated by the RIRs: 1958
Number of 32-bit ASNs visible in the Routing Table: 1641
Prefixes from 32-bit ASNs in the Routing Table: 3781
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2490672896
Equivalent to 148 /8s, 116 /16s and 167 /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: 161640
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95133
Total APNIC prefixes after maximum aggregation: 31128
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91571
Unique aggregates announced from the APNIC address blocks: 38347
APNIC Region origin ASes present in the Internet Routing Table: 4607
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1271
APNIC Region transit ASes present in the Internet Routing Table: 714
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: 630053984
Equivalent to 37 /8s, 141 /16s and 220 /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: 145970
Total ARIN prefixes after maximum aggregation: 74495
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118081
Unique aggregates announced from the ARIN address blocks: 48554
ARIN Region origin ASes present in the Internet Routing Table: 14750
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5643
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: 13
Number of ARIN addresses announced to Internet: 803227584
Equivalent to 47 /8s, 224 /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: 92386
Total RIPE prefixes after maximum aggregation: 51185
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84629
Unique aggregates announced from the RIPE address blocks: 54471
RIPE Region origin ASes present in the Internet Routing Table: 16124
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2543
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: 1139
Number of RIPE addresses announced to Internet: 492141504
Equivalent to 29 /8s, 85 /16s and 123 /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: 36270
Total LACNIC prefixes after maximum aggregation: 7915
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35734
Unique aggregates announced from the LACNIC address blocks: 18648
LACNIC Region origin ASes present in the Internet Routing Table: 1547
LACNIC Prefixes per ASN: 23.10
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 283
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: 375
Number of LACNIC addresses announced to Internet: 93132160
Equivalent to 5 /8s, 141 /16s and 21 /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: 8602
Total AfriNIC prefixes after maximum aggregation: 2056
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6662
Unique aggregates announced from the AfriNIC address blocks: 2048
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 107
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: 27692032
Equivalent to 1 /8s, 166 /16s and 140 /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 2517 11109 973 Korea Telecom (KIX)
17974 1645 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1528 378 170 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
4808 1102 2095 315 CNCGROUP IP network: China169
9583 1094 80 494 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 3540 3814 219 bellsouth.net, inc.
7029 2918 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 1596 1546 624 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1423 256 668 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1311 7029 860 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 1559 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 600 112 188 BILISIM TELEKOM
20940 553 182 435 Akamai Technologies European
3320 512 8168 389 Deutsche Telekom AG
3292 480 2106 408 TDC Tele Danmark
12479 480 596 9 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
8551 416 366 45 Bezeq International
31148 408 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 1706 316 157 TVCABLE BOGOTA
28573 1488 1043 79 NET Servicos de Comunicao S.A
8151 1439 2953 347 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 599 72 85 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 558 434 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 776 146 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 203 12 16 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 3540 3814 219 bellsouth.net, inc.
7029 2918 1016 199 Windstream Communications Inc
4766 2517 11109 973 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 122 PaeTec Communications, Inc.
10620 1706 316 157 TVCABLE BOGOTA
17974 1645 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1613 1077 387 Time Warner Telecom
20115 1596 1546 624 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 2918 2719 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1726 PaeTec Communications, Inc.
17974 1645 1609 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
8402 1559 1545 Corbina telecom
4766 2517 1544 Korea Telecom (KIX)
7545 1626 1540 TPG Internet Pty Ltd
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 /14:807 /15:1423 /16:12009 /17:6075 /18:10115
/19:19990 /20:27657 /21:27825 /22:37883 /23:35429 /24:198829
/25:1148 /26:1363 /27:760 /28:160 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2548 2918 Windstream Communications Inc
6389 2182 3540 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1535 1559 Corbina telecom
30036 1383 1423 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1050 1167 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)
----------------------------------------------
1:415 2:490 4:15 5:1 6:3 8:353
12:1965 13:1 14:550 15:11 16:3 17:7
20:9 23:63 24:1685 27:1027 31:698 32:65
33:2 34:2 36:4 38:760 39:1 40:109
41:2671 42:60 43:1 44:3 46:1044 47:3
49:294 50:454 52:13 55:5 56:2 57:48
58:918 59:493 60:360 61:1133 62:1091 63:1964
64:4069 65:2300 66:4326 67:2013 68:1166 69:3145
70:905 71:389 72:1820 74:2630 75:430 76:319
77:889 78:885 79:490 80:1138 81:837 82:513
83:518 84:621 85:1155 86:402 87:904 88:355
89:1596 90:236 91:4264 92:537 93:1441 94:1308
95:1110 96:429 97:285 98:817 99:37 101:238
103:475 106:1 107:93 108:81 109:1185 110:671
111:803 112:359 113:485 114:586 115:714 116:880
117:719 118:891 119:1282 120:350 121:671 122:1579
123:1021 124:1349 125:1349 128:252 129:184 130:176
131:633 132:154 133:21 134:226 135:54 136:213
137:146 138:287 139:121 140:494 141:253 142:389
143:418 144:487 145:65 146:469 147:219 148:623
149:268 150:164 151:194 152:449 153:172 154:7
155:389 156:208 157:362 158:156 159:494 160:329
161:215 162:374 163:175 164:511 165:369 166:541
167:444 168:822 169:147 170:880 171:87 172:4
173:1748 174:591 175:432 176:315 177:375 178:1111
180:1144 181:39 182:655 183:239 184:396 185:1
186:1414 187:796 188:981 189:1155 190:5212 192:5934
193:5056 194:3551 195:3108 196:1269 197:167 198:3625
199:4218 200:5526 201:1716 202:8555 203:8541 204:4300
205:2377 206:2658 207:2813 208:4031 209:3584 210:2731
211:1465 212:1999 213:1803 214:814 215:97 216:4911
217:1608 218:555 219:335 220:1256 221:517 222:325
223:278
End of report
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