Routing Table Report 04:00 +10GMT Thu 23 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 361254
Prefixes after maximum aggregation: 163726
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178670
Total ASes present in the Internet Routing Table: 37949
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31621
Origin ASes announcing only one prefix: 15192
Transit ASes present in the Internet Routing Table: 5159
Transit-only ASes present in the Internet Routing Table: 138
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: 830
Unregistered ASNs in the Routing Table: 445
Number of 32-bit ASNs allocated by the RIRs: 1475
Number of 32-bit ASNs visible in the Routing Table: 1169
Prefixes from 32-bit ASNs in the Routing Table: 2691
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 143
Number of addresses announced to Internet: 2493480256
Equivalent to 148 /8s, 159 /16s and 125 /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: 150555
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89802
Total APNIC prefixes after maximum aggregation: 30196
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86368
Unique aggregates announced from the APNIC address blocks: 36181
APNIC Region origin ASes present in the Internet Routing Table: 4493
APNIC Prefixes per ASN: 19.22
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 707
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: 50
Number of APNIC addresses announced to Internet: 622744352
Equivalent to 37 /8s, 30 /16s and 83 /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: 141164
Total ARIN prefixes after maximum aggregation: 72105
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 113064
Unique aggregates announced from the ARIN address blocks: 46531
ARIN Region origin ASes present in the Internet Routing Table: 14437
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5512
ARIN Region transit ASes present in the Internet Routing Table: 1526
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: 819592704
Equivalent to 48 /8s, 217 /16s and 254 /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: 85969
Total RIPE prefixes after maximum aggregation: 48891
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79379
Unique aggregates announced from the RIPE address blocks: 52579
RIPE Region origin ASes present in the Internet Routing Table: 15730
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7851
RIPE Region transit ASes present in the Internet Routing Table: 2487
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: 859
Number of RIPE addresses announced to Internet: 478058496
Equivalent to 28 /8s, 126 /16s and 152 /24s
Percentage of available RIPE address space announced: 77.0
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: 33237
Total LACNIC prefixes after maximum aggregation: 7582
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32280
Unique aggregates announced from the LACNIC address blocks: 16916
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 21.96
LACNIC Region origin ASes announcing only one prefix: 439
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: 244
Number of LACNIC addresses announced to Internet: 85563648
Equivalent to 5 /8s, 25 /16s and 153 /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: 8175
Total AfriNIC prefixes after maximum aggregation: 1951
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6478
Unique aggregates announced from the AfriNIC address blocks: 1974
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.99
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 24310016
Equivalent to 1 /8s, 114 /16s and 241 /24s
Percentage of available AfriNIC address space announced: 36.2
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 2457 9500 926 Korea Telecom (KIX)
17974 1854 467 43 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 86 TPG Internet Pty Ltd
4755 1480 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
7552 1055 1064 7 Vietel Corporation
4808 1045 2089 298 CNCGROUP IP network: China169
9829 1034 878 68 BSNL National Internet Backbo
17488 952 182 103 Hathway IP Over Cable Interne
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 3625 3819 250 bellsouth.net, inc.
18566 1912 365 240 Covad Communications
1785 1796 681 121 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1523 1527 633 Charter Communications
19262 1492 4920 307 Verizon Global Networks
7018 1361 7054 889 AT&T WorldNet Services
22773 1341 2897 87 Cox Communications, Inc.
7029 1309 790 297 Alltel Information 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
34984 528 107 182 BILISIM TELEKOM
6830 516 1780 321 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 465 136 357 Akamai Technologies European
29049 447 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 397 1803 310 UUNET - Commercial IP service
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 1524 280 156 TVCABLE BOGOTA
8151 1427 2731 364 UniNet S.A. de C.V.
28573 1266 992 86 NET Servicos de Comunicao S.A
7303 991 506 169 Telecom Argentina Stet-France
6503 742 354 74 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 573 322 17 VTR PUNTO NET S.A.
3816 529 229 99 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 500 53 52 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 791 445 11 TEDATA
15475 525 74 8 Nile Online
36992 310 415 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 3625 3819 250 bellsouth.net, inc.
23456 2691 666 1454 32-bit ASN transition
4766 2457 9500 926 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications
17974 1854 467 43 PT TELEKOMUNIKASI INDONESIA
1785 1796 681 121 PaeTec Communications, Inc.
4323 1661 1081 398 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
7545 1539 301 86 TPG Internet Pty Ltd
10620 1524 280 156 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 1854 1811 PT TELEKOMUNIKASI INDONESIA
1785 1796 1675 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2457 1531 Korea Telecom (KIX)
7545 1539 1453 TPG Internet Pty Ltd
10620 1524 1368 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1480 1312 TATA Communications formerly
4323 1661 1263 Time Warner Telecom
22773 1341 1254 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
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 /16:11973 /17:5856 /18:9789
/19:19390 /20:25996 /21:26062 /22:34424 /23:33358 /24:188050
/25:1093 /26:1270 /27:731 /28:213 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2228 3625 bellsouth.net, inc.
18566 1869 1912 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1524 TVCABLE BOGOTA
23456 1332 2691 32-bit ASN transition
11492 1090 1136 Cable One
7011 1060 1161 Citizens Utilities
7029 1055 1309 Alltel Information Services,
1785 1050 1796 PaeTec Communications, Inc.
22773 856 1341 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:297 2:44 4:16 5:1 6:3 8:336
12:1973 13:1 14:466 15:15 16:3 17:8
20:10 23:11 24:1655 27:793 31:474 32:64
33:4 34:2 37:1 38:738 39:3 40:103
41:2538 42:2 44:3 46:971 47:3 49:193
50:414 52:13 54:2 55:4 56:2 57:32
58:837 59:473 60:386 61:1181 62:1055 63:1935
64:3940 65:2289 66:3858 67:1899 68:1090 69:3039
70:755 71:376 72:1886 74:2376 75:318 76:339
77:883 78:708 79:459 80:1113 81:842 82:494
83:456 84:668 85:1077 86:553 87:759 88:329
89:1527 90:209 91:3857 92:535 93:1048 94:1304
95:831 96:445 97:250 98:880 99:36 101:75
103:87 106:10 107:15 108:70 109:1012 110:608
111:699 112:303 113:407 114:542 115:662 116:969
117:674 118:851 119:1148 120:311 121:669 122:1630
123:957 124:1274 125:1240 128:247 129:172 130:167
131:578 132:112 133:21 134:214 135:45 136:215
137:138 138:300 139:114 140:482 141:238 142:403
143:425 144:493 145:54 146:450 147:213 148:659
149:247 150:172 151:190 152:333 153:180 154:4
155:398 156:195 157:352 158:138 159:391 160:316
161:208 162:310 163:162 164:506 165:352 166:533
167:433 168:740 169:158 170:841 171:77 172:1
173:1623 174:606 175:372 176:137 177:148 178:1004
180:894 181:19 182:484 183:223 184:302 185:1
186:1249 187:731 188:869 189:905 190:4879 192:5879
193:4965 194:3489 195:3034 196:1220 197:41 198:3596
199:3948 200:5529 201:1497 202:8357 203:8433 204:4193
205:2341 206:2680 207:2809 208:3942 209:3466 210:2705
211:1428 212:2093 213:1737 214:775 215:69 216:4931
217:1641 218:547 219:362 220:1203 221:491 222:359
223:161
End of report
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