Routing Table Report 04:00 +10GMT Tue 22 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 382816
Prefixes after maximum aggregation: 166966
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187915
Total ASes present in the Internet Routing Table: 39358
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32427
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5286
Transit-only ASes present in the Internet Routing Table: 133
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: 897
Number of 32-bit ASNs allocated by the RIRs: 1972
Number of 32-bit ASNs visible in the Routing Table: 1645
Prefixes from 32-bit ASNs in the Routing Table: 3831
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2491381248
Equivalent to 148 /8s, 127 /16s and 118 /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: 161776
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95295
Total APNIC prefixes after maximum aggregation: 31180
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91745
Unique aggregates announced from the APNIC address blocks: 38578
APNIC Region origin ASes present in the Internet Routing Table: 4615
APNIC Prefixes per ASN: 19.88
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 630178144
Equivalent to 37 /8s, 143 /16s and 193 /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: 145932
Total ARIN prefixes after maximum aggregation: 74497
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118142
Unique aggregates announced from the ARIN address blocks: 48599
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: 5634
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: 803224256
Equivalent to 47 /8s, 224 /16s and 58 /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: 92613
Total RIPE prefixes after maximum aggregation: 51232
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84831
Unique aggregates announced from the RIPE address blocks: 54422
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: 7975
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: 1146
Number of RIPE addresses announced to Internet: 492555840
Equivalent to 29 /8s, 91 /16s and 206 /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: 36320
Total LACNIC prefixes after maximum aggregation: 7931
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35769
Unique aggregates announced from the LACNIC address blocks: 18651
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.11
LACNIC Region origin ASes announcing only one prefix: 443
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: 373
Number of LACNIC addresses announced to Internet: 93098880
Equivalent to 5 /8s, 140 /16s and 147 /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: 8643
Total AfriNIC prefixes after maximum aggregation: 2053
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6694
Unique aggregates announced from the AfriNIC address blocks: 2043
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 13.33
AfriNIC Region origin ASes announcing only one prefix: 158
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: 27780352
Equivalent to 1 /8s, 167 /16s and 229 /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 2515 11105 972 Korea Telecom (KIX)
17974 1641 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 87 TPG Internet Pty Ltd
4755 1516 376 168 TATA Communications formerly
7552 1395 1064 7 Vietel Corporation
9829 1140 989 28 BSNL National Internet Backbo
4808 1094 2073 311 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 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 1613 1078 389 Time Warner Telecom
20115 1598 1546 624 Charter Communications
22773 1501 2909 104 Cox Communications, Inc.
30036 1429 257 671 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1313 7029 859 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 1630 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 22 115 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 1505 1045 71 NET Servicos de Comunicao S.A
8151 1447 2972 345 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 608 72 86 Telconet S.A
22047 581 322 17 VTR PUNTO NET S.A.
6503 556 434 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 663 446 12 TEDATA
15475 444 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 217 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 2515 11105 972 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1848 680 121 PaeTec Communications, Inc.
10620 1695 314 176 TVCABLE BOGOTA
17974 1641 511 36 PT TELEKOMUNIKASI INDONESIA
8402 1630 416 14 Corbina telecom
7545 1627 303 87 TPG Internet Pty Ltd
4323 1613 1078 389 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 2909 2710 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1848 1727 PaeTec Communications, Inc.
8402 1630 1616 Corbina telecom
17974 1641 1605 PT TELEKOMUNIKASI INDONESIA
4766 2515 1543 Korea Telecom (KIX)
7545 1627 1540 TPG Internet Pty Ltd
10620 1695 1519 TVCABLE BOGOTA
28573 1505 1434 NET Servicos de Comunicao S.A
22773 1501 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 /16:12021 /17:6083 /18:10125
/19:19997 /20:27660 /21:27872 /22:37949 /23:35515 /24:199075
/25:1154 /26:1362 /27:759 /28:161 /29:4 /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
8402 1606 1630 Corbina telecom
10620 1590 1695 TVCABLE BOGOTA
30036 1389 1429 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1848 PaeTec Communications, Inc.
7011 1050 1167 Citizens Utilities
22773 961 1501 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:417 2:490 4:15 5:1 6:3 8:358
12:1952 13:1 14:552 15:11 16:3 17:7
20:9 23:70 24:1687 27:1028 31:705 32:65
33:2 34:2 36:4 38:766 39:1 40:109
41:2697 42:64 43:1 44:3 46:1060 47:3
49:295 50:455 52:13 55:7 56:2 57:49
58:930 59:486 60:360 61:1151 62:1095 63:1965
64:4074 65:2301 66:4338 67:2014 68:1172 69:3146
70:905 71:383 72:1819 74:2642 75:431 76:320
77:892 78:892 79:458 80:1137 81:839 82:513
83:522 84:623 85:1152 86:404 87:907 88:357
89:1596 90:235 91:4282 92:538 93:1446 94:1312
95:1123 96:428 97:285 98:759 99:37 101:243
103:505 106:1 107:95 108:80 109:1193 110:674
111:804 112:364 113:496 114:625 115:717 116:879
117:719 118:896 119:1250 120:321 121:670 122:1569
123:1026 124:1367 125:1352 128:299 129:184 130:174
131:632 132:155 133:21 134:229 135:54 136:211
137:146 138:285 139:122 140:492 141:250 142:386
143:400 144:498 145:65 146:474 147:218 148:633
149:268 150:164 151:192 152:448 153:172 154:7
155:375 156:208 157:357 158:156 159:495 160:333
161:214 162:371 163:175 164:518 165:368 166:540
167:444 168:823 169:146 170:823 171:87 172:4
173:1751 174:575 175:436 176:324 177:398 178:1119
180:1177 181:39 182:661 183:243 184:396 185:1
186:1416 187:774 188:982 189:1160 190:5202 192:5932
193:5053 194:3556 195:3111 196:1279 197:166 198:3613
199:4220 200:5523 201:1713 202:8561 203:8546 204:4311
205:2398 206:2654 207:2829 208:4026 209:3577 210:2737
211:1454 212:2018 213:1807 214:809 215:96 216:4916
217:1606 218:566 219:340 220:1251 221:509 222:325
223:281
End of report
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