Routing Table Report 04:00 +10GMT Sun 13 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 381758
Prefixes after maximum aggregation: 166476
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187626
Total ASes present in the Internet Routing Table: 39279
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32389
Origin ASes announcing only one prefix: 15478
Transit ASes present in the Internet Routing Table: 5273
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: 1683
Unregistered ASNs in the Routing Table: 881
Number of 32-bit ASNs allocated by the RIRs: 1942
Number of 32-bit ASNs visible in the Routing Table: 1617
Prefixes from 32-bit ASNs in the Routing Table: 3724
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2490455360
Equivalent to 148 /8s, 113 /16s and 85 /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: 161466
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94882
Total APNIC prefixes after maximum aggregation: 31013
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91322
Unique aggregates announced from the APNIC address blocks: 38379
APNIC Region origin ASes present in the Internet Routing Table: 4605
APNIC Prefixes per ASN: 19.83
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 717
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 107
Number of APNIC addresses announced to Internet: 629932128
Equivalent to 37 /8s, 140 /16s and 0 /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: 146223
Total ARIN prefixes after maximum aggregation: 74397
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 118233
Unique aggregates announced from the ARIN address blocks: 48491
ARIN Region origin ASes present in the Internet Routing Table: 14743
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5635
ARIN Region transit ASes present in the Internet Routing Table: 1565
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: 804230848
Equivalent to 47 /8s, 239 /16s and 150 /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: 91949
Total RIPE prefixes after maximum aggregation: 51047
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84420
Unique aggregates announced from the RIPE address blocks: 54554
RIPE Region origin ASes present in the Internet Routing Table: 16099
RIPE Prefixes per ASN: 5.24
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2523
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: 1122
Number of RIPE addresses announced to Internet: 491923136
Equivalent to 29 /8s, 82 /16s and 38 /24s
Percentage of available RIPE address space announced: 79.2
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: 36195
Total LACNIC prefixes after maximum aggregation: 7901
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35626
Unique aggregates announced from the LACNIC address blocks: 18610
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 23.10
LACNIC Region origin ASes announcing only one prefix: 443
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: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 372
Number of LACNIC addresses announced to Internet: 92918912
Equivalent to 5 /8s, 137 /16s and 212 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8604
Total AfriNIC prefixes after maximum aggregation: 2043
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6681
Unique aggregates announced from the AfriNIC address blocks: 2019
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.44
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 108
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: 27689216
Equivalent to 1 /8s, 166 /16s and 129 /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 2510 11108 968 Korea Telecom (KIX)
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4755 1542 377 172 TATA Communications formerly
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
4808 1093 2095 313 CNCGROUP IP network: China169
24560 964 343 218 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 3543 3814 219 bellsouth.net, inc.
7029 2918 1016 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
4323 1621 1077 387 Time Warner Telecom
20115 1595 1545 624 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1415 255 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1309 7029 857 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 1487 416 14 Corbina telecom
6830 646 1927 411 UPC Distribution Services
34984 596 110 184 BILISIM TELEKOM
20940 551 182 433 Akamai Technologies European
3320 504 8168 389 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
3292 478 2074 406 TDC Tele Danmark
8866 463 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
8551 402 354 43 Bezeq International
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 1438 2937 348 UniNet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 591 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 566 434 68 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 539 234 96 Empresa Nacional de Telecomun
11172 525 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 791 146 36 LINKdotNET AS number
8452 704 446 12 TEDATA
15475 443 74 8 Nile Online
36992 285 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
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 3543 3814 219 bellsouth.net, inc.
7029 2918 1016 199 Windstream Communications Inc
4766 2510 11108 968 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1847 680 122 PaeTec Communications, Inc.
10620 1706 316 157 TVCABLE BOGOTA
17974 1648 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1625 303 88 TPG Internet Pty Ltd
4323 1621 1077 387 Time Warner Telecom
20115 1595 1545 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 1847 1725 PaeTec Communications, Inc.
17974 1648 1612 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
4766 2510 1542 Korea Telecom (KIX)
7545 1625 1537 TPG Internet Pty Ltd
8402 1487 1473 Corbina telecom
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 /14:808 /15:1422 /16:12016 /17:6062 /18:10094
/19:19973 /20:27625 /21:27749 /22:37593 /23:35314 /24:198814
/25:1157 /26:1361 /27:760 /28:161 /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 2184 3543 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1463 1487 Corbina telecom
30036 1375 1415 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1847 PaeTec Communications, Inc.
7011 1051 1168 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)
----------------------------------------------
1:409 2:481 4:15 5:1 6:3 8:356
12:1966 13:1 14:547 15:11 16:3 17:7
20:9 23:63 24:1683 27:1032 31:670 32:65
33:2 34:2 36:4 38:755 39:1 40:110
41:2702 42:60 43:1 44:3 46:1048 47:3
49:299 50:449 52:13 55:8 56:2 57:47
58:920 59:497 60:362 61:1117 62:1095 63:1970
64:4059 65:2304 66:4322 67:2016 68:1174 69:3144
70:905 71:387 72:1819 74:2631 75:430 76:319
77:887 78:878 79:481 80:1133 81:817 82:514
83:517 84:622 85:1152 86:397 87:930 88:356
89:1587 90:236 91:4254 92:536 93:1550 94:1304
95:1072 96:427 97:285 98:943 99:37 101:233
103:462 106:7 107:91 108:78 109:1186 110:665
111:808 112:362 113:481 114:622 115:715 116:881
117:722 118:890 119:1276 120:236 121:680 122:1575
123:1019 124:1353 125:1355 128:246 129:184 130:164
131:623 132:151 133:21 134:221 135:54 136:213
137:143 138:287 139:121 140:494 141:253 142:389
143:407 144:494 145:64 146:470 147:219 148:636
149:270 150:163 151:194 152:449 153:172 154:7
155:390 156:207 157:361 158:155 159:488 160:331
161:215 162:374 163:173 164:511 165:369 166:544
167:442 168:819 169:145 170:878 171:94 172:4
173:1743 174:702 175:432 176:296 177:359 178:1100
180:1145 181:38 182:653 183:236 184:393 185:1
186:1403 187:780 188:964 189:1162 190:5200 192:5925
193:5049 194:3543 195:3107 196:1269 197:167 198:3615
199:4218 200:5524 201:1703 202:8549 203:8542 204:4313
205:2378 206:2669 207:2819 208:4026 209:3588 210:2738
211:1420 212:2077 213:1804 214:786 215:97 216:4928
217:1601 218:546 219:344 220:1256 221:487 222:324
223:272
End of report
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