Routing Table Report 04:00 +10GMT Mon 27 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 361636
Prefixes after maximum aggregation: 164238
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178718
Total ASes present in the Internet Routing Table: 37996
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31641
Origin ASes announcing only one prefix: 15213
Transit ASes present in the Internet Routing Table: 5169
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 850
Unregistered ASNs in the Routing Table: 461
Number of 32-bit ASNs allocated by the RIRs: 1499
Number of 32-bit ASNs visible in the Routing Table: 1186
Prefixes from 32-bit ASNs in the Routing Table: 2709
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 134
Number of addresses announced to Internet: 2493436224
Equivalent to 148 /8s, 158 /16s and 209 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150664
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89816
Total APNIC prefixes after maximum aggregation: 30214
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86567
Unique aggregates announced from the APNIC address blocks: 36203
APNIC Region origin ASes present in the Internet Routing Table: 4495
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 713
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: 52
Number of APNIC addresses announced to Internet: 622754336
Equivalent to 37 /8s, 30 /16s and 122 /24s
Percentage of available APNIC address space announced: 79.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 141251
Total ARIN prefixes after maximum aggregation: 72509
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 113229
Unique aggregates announced from the ARIN address blocks: 46538
ARIN Region origin ASes present in the Internet Routing Table: 14443
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5522
ARIN Region transit ASes present in the Internet Routing Table: 1517
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 819308800
Equivalent to 48 /8s, 213 /16s and 169 /24s
Percentage of available ARIN address space announced: 65.1
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: 86090
Total RIPE prefixes after maximum aggregation: 48945
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79472
Unique aggregates announced from the RIPE address blocks: 52586
RIPE Region origin ASes present in the Internet Routing Table: 15750
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7859
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 870
Number of RIPE addresses announced to Internet: 478369792
Equivalent to 28 /8s, 131 /16s and 88 /24s
Percentage of available RIPE address space announced: 77.1
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: 33329
Total LACNIC prefixes after maximum aggregation: 7589
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32380
Unique aggregates announced from the LACNIC address blocks: 16933
LACNIC Region origin ASes present in the Internet Routing Table: 1472
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 248
Number of LACNIC addresses announced to Internet: 85623552
Equivalent to 5 /8s, 26 /16s and 131 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8224
Total AfriNIC prefixes after maximum aggregation: 1953
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6501
Unique aggregates announced from the AfriNIC address blocks: 1980
AfriNIC Region origin ASes present in the Internet Routing Table: 461
AfriNIC Prefixes per ASN: 14.10
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24245504
Equivalent to 1 /8s, 113 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 36.1
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 2458 9500 928 Korea Telecom (KIX)
17974 1863 460 43 PT TELEKOMUNIKASI INDONESIA
7545 1543 301 85 TPG Internet Pty Ltd
4755 1478 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
4808 1051 2092 302 CNCGROUP IP network: China169
9829 1049 887 56 BSNL National Internet Backbo
17488 957 185 103 Hathway IP Over Cable Interne
18101 931 116 139 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 3627 3819 249 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1797 681 122 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
20115 1586 1531 635 Charter Communications
6478 1499 276 522 AT&T Worldnet Services
19262 1450 4805 371 Verizon Global Networks
7018 1362 7053 891 AT&T WorldNet Services
22773 1347 2897 87 Cox Communications, Inc.
7029 1308 790 298 Windstream Communications Inc
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
34984 530 107 183 BILISIM TELEKOM
6830 515 1780 320 UPC Distribution Services
3292 469 2080 404 TDC Tele Danmark
20940 467 137 359 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 437 593 7 Uni2 Autonomous System
3320 418 8151 365 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 396 1839 345 TeliaNet Sweden
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 1532 281 157 TVCABLE BOGOTA
8151 1417 2738 358 UniNet S.A. de C.V.
28573 1266 993 78 NET Servicos de Comunicao S.A
7303 992 507 171 Telecom Argentina Stet-France
6503 742 354 74 AVANTEL, S.A.
14420 684 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 VTR PUNTO NET S.A.
3816 531 231 94 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 502 53 53 Telconet S.A
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 797 147 37 LINKdotNET AS number
8452 793 445 11 TEDATA
15475 524 74 8 Nile Online
36992 316 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 216 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 86 MTN Network Solutions
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 3627 3819 249 bellsouth.net, inc.
23456 2709 674 1467 32-bit ASN transition
4766 2458 9500 928 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
17974 1863 460 43 PT TELEKOMUNIKASI INDONESIA
1785 1797 681 122 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
20115 1586 1531 635 Charter Communications
7545 1543 301 85 TPG Internet Pty Ltd
10620 1532 281 157 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1863 1820 PT TELEKOMUNIKASI INDONESIA
1785 1797 1675 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2458 1530 Korea Telecom (KIX)
7545 1543 1458 TPG Internet Pty Ltd
10620 1532 1375 TVCABLE BOGOTA
4755 1478 1310 TATA Communications formerly
4323 1661 1263 Time Warner Telecom
22773 1347 1260 Cox Communications, Inc.
23456 2709 1242 32-bit ASN transition
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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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
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
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:461 /14:800 /15:1396 /16:11969 /17:5859 /18:9748
/19:19421 /20:25824 /21:26096 /22:34518 /23:33486 /24:188351
/25:1096 /26:1276 /27:734 /28:209 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2231 3627 bellsouth.net, inc.
18566 1869 1913 Covad Communications
6478 1466 1499 AT&T Worldnet Services
10620 1427 1532 TVCABLE BOGOTA
23456 1331 2709 32-bit ASN transition
11492 1090 1136 Cable One
7011 1056 1157 Citizens Utilities
7029 1055 1308 Windstream Communications Inc
1785 1050 1797 PaeTec Communications, Inc.
22773 862 1347 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:298 2:44 4:16 5:1 6:3 8:336
12:1979 13:1 14:463 15:15 16:3 17:8
20:10 23:12 24:1657 27:801 31:483 32:64
33:4 34:2 37:1 38:737 39:3 40:103
41:2558 42:2 44:3 46:984 47:3 49:196
50:413 52:13 54:2 55:3 56:2 57:32
58:862 59:476 60:386 61:1179 62:1040 63:1936
64:3945 65:2285 66:3881 67:1898 68:1092 69:3023
70:757 71:388 72:1890 74:2382 75:320 76:340
77:872 78:710 79:465 80:1093 81:820 82:495
83:453 84:670 85:1078 86:552 87:759 88:333
89:1526 90:209 91:3879 92:536 93:1047 94:1323
95:839 96:445 97:253 98:883 99:36 101:77
103:90 106:10 107:16 108:70 109:994 110:605
111:708 112:304 113:405 114:543 115:667 116:962
117:670 118:857 119:1152 120:312 121:669 122:1617
123:960 124:1304 125:1241 128:247 129:172 130:166
131:571 132:111 133:21 134:214 135:48 136:214
137:138 138:300 139:114 140:479 141:239 142:403
143:405 144:484 145:54 146:448 147:213 148:660
149:248 150:165 151:190 152:332 153:180 154:4
155:398 156:195 157:350 158:138 159:452 160:314
161:210 162:310 163:165 164:506 165:354 166:534
167:433 168:739 169:157 170:845 171:78 172:1
173:1631 174:609 175:372 176:138 177:147 178:1005
180:892 181:19 182:484 183:223 184:308 185:1
186:1239 187:736 188:875 189:931 190:4911 192:5881
193:4972 194:3486 195:3043 196:1222 197:41 198:3587
199:3953 200:5540 201:1506 202:8346 203:8431 204:4204
205:2351 206:2681 207:2809 208:3946 209:3467 210:2704
211:1460 212:2102 213:1737 214:753 215:70 216:4936
217:1636 218:549 219:363 220:1203 221:490 222:361
223:157
End of report
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