Routing Table Report 04:00 +10GMT Wed 19 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 378312
Prefixes after maximum aggregation: 169616
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185192
Total ASes present in the Internet Routing Table: 39092
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 32329
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5242
Transit-only ASes present in the Internet Routing Table: 137
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: 1456
Unregistered ASNs in the Routing Table: 806
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 1521
Prefixes from 32-bit ASNs in the Routing Table: 3485
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2484217056
Equivalent to 148 /8s, 18 /16s and 36 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159159
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94575
Total APNIC prefixes after maximum aggregation: 30899
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91042
Unique aggregates announced from the APNIC address blocks: 37968
APNIC Region origin ASes present in the Internet Routing Table: 4582
APNIC Prefixes per ASN: 19.87
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 94
Number of APNIC addresses announced to Internet: 628668512
Equivalent to 37 /8s, 120 /16s and 184 /24s
Percentage of available APNIC address space announced: 79.7
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: 145757
Total ARIN prefixes after maximum aggregation: 74385
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117697
Unique aggregates announced from the ARIN address blocks: 47857
ARIN Region origin ASes present in the Internet Routing Table: 14735
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5669
ARIN Region transit ASes present in the Internet Routing Table: 1559
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: 804429312
Equivalent to 47 /8s, 242 /16s and 158 /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: 90783
Total RIPE prefixes after maximum aggregation: 50645
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83466
Unique aggregates announced from the RIPE address blocks: 54188
RIPE Region origin ASes present in the Internet Routing Table: 16047
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7968
RIPE Region transit ASes present in the Internet Routing Table: 2516
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: 1069
Number of RIPE addresses announced to Internet: 490805888
Equivalent to 29 /8s, 65 /16s and 26 /24s
Percentage of available RIPE address space announced: 79.1
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: 35016
Total LACNIC prefixes after maximum aggregation: 7862
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 34410
Unique aggregates announced from the LACNIC address blocks: 17914
LACNIC Region origin ASes present in the Internet Routing Table: 1539
LACNIC Prefixes per ASN: 22.36
LACNIC Region origin ASes announcing only one prefix: 448
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 342
Number of LACNIC addresses announced to Internet: 91050880
Equivalent to 5 /8s, 109 /16s and 83 /24s
Percentage of available LACNIC address space announced: 60.3
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: 8524
Total AfriNIC prefixes after maximum aggregation: 2002
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6602
Unique aggregates announced from the AfriNIC address blocks: 1957
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27814912
Equivalent to 1 /8s, 168 /16s and 108 /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 2503 11095 963 Korea Telecom (KIX)
17974 1917 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1609 303 84 TPG Internet Pty Ltd
4755 1539 639 173 TATA Communications formerly
7552 1388 1064 7 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1088 80 503 Sify Limited
4808 1080 2100 308 CNCGROUP IP network: China169
24560 969 340 223 Bharti Airtel Ltd., Telemedia
18101 949 165 145 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 3547 3815 221 bellsouth.net, inc.
7029 2253 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1837 680 121 PaeTec Communications, Inc.
4323 1630 1083 392 Time Warner Telecom
20115 1592 1541 634 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1392 251 673 Mediacom Communications Corp
7018 1340 7078 850 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 1504 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 584 108 180 BILISIM TELEKOM
20940 545 182 420 Akamai Technologies European
3320 502 8169 384 Deutsche Telekom AG
3292 482 2080 408 TDC Tele Danmark
12479 482 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 421 31 57 AzerSat LLC.
8551 404 354 44 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 1681 310 155 TVCABLE BOGOTA
8151 1426 2863 350 UniNet S.A. de C.V.
28573 1393 1031 71 NET Servicos de Comunicao S.A
7303 1164 683 175 Telecom Argentina Stet-France
22047 580 322 17 VTR PUNTO NET S.A.
27947 579 72 83 Telconet S.A
6503 574 450 69 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 96 Empresa Nacional de Telecomun
11172 522 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 801 146 36 LINKdotNET AS number
8452 653 446 12 TEDATA
15475 443 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 218 18 14 Ci Telecom Autonomous system
33776 207 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 3547 3815 221 bellsouth.net, inc.
4766 2503 11095 963 Korea Telecom (KIX)
7029 2253 1016 197 Windstream Communications Inc
18566 2098 383 177 Covad Communications
17974 1917 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1837 680 121 PaeTec Communications, Inc.
10620 1681 310 155 TVCABLE BOGOTA
4323 1630 1083 392 Time Warner Telecom
7545 1609 303 84 TPG Internet Pty Ltd
20115 1592 1541 634 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 2253 2056 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1917 1884 PT TELEKOMUNIKASI INDONESIA
1785 1837 1716 PaeTec Communications, Inc.
4766 2503 1540 Korea Telecom (KIX)
10620 1681 1526 TVCABLE BOGOTA
7545 1609 1525 TPG Internet Pty Ltd
8402 1504 1491 Corbina telecom
7552 1388 1381 Vietel Corporation
4755 1539 1366 TATA Communications formerly
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
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
41.223.92.0/22 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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:807 /15:1425 /16:11999 /17:6036 /18:10050
/19:19955 /20:27332 /21:27357 /22:37001 /23:35109 /24:196990
/25:1153 /26:1337 /27:746 /28:168 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3547 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 1927 2253 Windstream Communications Inc
10620 1576 1681 TVCABLE BOGOTA
8402 1480 1504 Corbina telecom
30036 1354 1392 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1837 PaeTec Communications, Inc.
7011 1048 1166 Citizens Utilities
22773 950 1462 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:406 2:483 4:15 5:1 6:3 8:359
12:1954 13:1 14:541 15:11 16:3 17:7
20:9 23:58 24:1675 27:964 31:601 32:65
33:4 34:2 36:4 38:753 40:109 41:2651
42:51 44:3 46:996 47:3 49:296 50:439
52:13 55:4 56:2 57:37 58:885 59:491
60:363 61:1184 62:1095 63:1927 64:4086 65:2307
66:4282 67:1968 68:1156 69:3222 70:890 71:377
72:1862 74:2586 75:387 76:346 77:884 78:868
79:478 80:1143 81:825 82:497 83:525 84:638
85:1116 86:404 87:892 88:354 89:1590 90:269
91:4207 92:528 93:1535 94:1298 95:1081 96:438
97:283 98:910 99:37 101:216 103:371 106:70
107:71 108:68 109:1055 110:667 111:788 112:330
113:483 114:610 115:704 116:881 117:714 118:899
119:1242 120:339 121:692 122:1557 123:1020 124:1363
125:1384 128:249 129:182 130:165 131:585 132:145
133:21 134:219 135:54 136:213 137:140 138:289
139:120 140:488 141:297 142:386 143:439 144:495
145:63 146:471 147:220 148:642 149:266 150:166
151:192 152:448 153:178 154:7 155:385 156:206
157:361 158:153 159:476 160:324 161:214 162:339
163:174 164:509 165:367 166:536 167:435 168:742
169:145 170:873 171:86 172:4 173:1705 174:680
175:426 176:281 177:325 178:1053 180:1091 181:36
182:637 183:218 184:375 185:1 186:1248 187:682
188:932 189:872 190:5114 192:5909 193:5031 194:3559
195:3100 196:1250 197:168 198:3630 199:4164 200:5493
201:1656 202:8557 203:8487 204:4294 205:2366 206:2677
207:2825 208:4059 209:3593 210:2693 211:1456 212:2054
213:1767 214:799 215:91 216:5008 217:1615 218:564
219:337 220:1242 221:515 222:347 223:278
End of report
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