Routing Table Report 04:00 +10GMT Mon 20 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 360659
Prefixes after maximum aggregation: 163566
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178150
Total ASes present in the Internet Routing Table: 37912
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31620
Origin ASes announcing only one prefix: 15182
Transit ASes present in the Internet Routing Table: 5133
Transit-only ASes present in the Internet Routing Table: 136
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: 819
Unregistered ASNs in the Routing Table: 442
Number of 32-bit ASNs allocated by the RIRs: 1467
Number of 32-bit ASNs visible in the Routing Table: 1159
Prefixes from 32-bit ASNs in the Routing Table: 2670
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 136
Number of addresses announced to Internet: 2490579136
Equivalent to 148 /8s, 115 /16s and 56 /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: 91.0
Total number of prefixes smaller than registry allocations: 150285
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89713
Total APNIC prefixes after maximum aggregation: 30161
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86206
Unique aggregates announced from the APNIC address blocks: 36152
APNIC Region origin ASes present in the Internet Routing Table: 4485
APNIC Prefixes per ASN: 19.22
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 702
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: 48
Number of APNIC addresses announced to Internet: 622369056
Equivalent to 37 /8s, 24 /16s and 153 /24s
Percentage of available APNIC address space announced: 78.9
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: 140906
Total ARIN prefixes after maximum aggregation: 72088
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 112872
Unique aggregates announced from the ARIN address blocks: 46255
ARIN Region origin ASes present in the Internet Routing Table: 14437
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5512
ARIN Region transit ASes present in the Internet Routing Table: 1521
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: 818685696
Equivalent to 48 /8s, 204 /16s and 39 /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: 85788
Total RIPE prefixes after maximum aggregation: 48811
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79215
Unique aggregates announced from the RIPE address blocks: 52482
RIPE Region origin ASes present in the Internet Routing Table: 15718
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7850
RIPE Region transit ASes present in the Internet Routing Table: 2477
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: 854
Number of RIPE addresses announced to Internet: 477382016
Equivalent to 28 /8s, 116 /16s and 69 /24s
Percentage of available RIPE address space announced: 76.9
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: 33249
Total LACNIC prefixes after maximum aggregation: 7553
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32287
Unique aggregates announced from the LACNIC address blocks: 16876
LACNIC Region origin ASes present in the Internet Routing Table: 1465
LACNIC Prefixes per ASN: 22.04
LACNIC Region origin ASes announcing only one prefix: 433
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: 241
Number of LACNIC addresses announced to Internet: 84882176
Equivalent to 5 /8s, 15 /16s and 51 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8116
Total AfriNIC prefixes after maximum aggregation: 1962
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6411
Unique aggregates announced from the AfriNIC address blocks: 1967
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 13.85
AfriNIC Region origin ASes announcing only one prefix: 143
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: 24250624
Equivalent to 1 /8s, 114 /16s and 9 /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 2457 9500 924 Korea Telecom (KIX)
17974 1864 465 43 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 86 TPG Internet Pty Ltd
4755 1478 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
4808 1049 2090 300 CNCGROUP IP network: China169
9829 1046 883 59 BSNL National Internet Backbo
17488 949 182 100 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 3626 3819 256 bellsouth.net, inc.
18566 1913 365 237 Covad Communications
1785 1796 681 122 PaeTec Communications, Inc.
4323 1659 1081 397 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
20115 1524 1527 637 Charter Communications
19262 1493 4936 308 Verizon Global Networks
7018 1361 7054 888 AT&T WorldNet Services
22773 1339 2897 85 Cox Communications, Inc.
7029 1311 790 296 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 524 107 182 BILISIM TELEKOM
6830 513 1780 320 UPC Distribution Services
3292 467 2078 402 TDC Tele Danmark
20940 462 135 354 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 438 593 7 Uni2 Autonomous System
3320 421 8151 368 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 398 1839 347 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 1529 280 157 TVCABLE BOGOTA
8151 1423 2729 364 UniNet S.A. de C.V.
28573 1251 993 78 NET Servicos de Comunicao S.A
7303 990 506 170 Telecom Argentina Stet-France
6503 743 354 74 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 VTR PUNTO NET S.A.
3816 530 229 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 796 147 37 LINKdotNET AS number
8452 789 445 11 TEDATA
15475 525 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 150 441 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 3626 3819 256 bellsouth.net, inc.
23456 2670 661 1449 32-bit ASN transition
4766 2457 9500 924 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications
17974 1864 465 43 PT TELEKOMUNIKASI INDONESIA
1785 1796 681 122 PaeTec Communications, Inc.
4323 1659 1081 397 Time Warner Telecom
6478 1641 298 276 AT&T Worldnet Services
7545 1539 301 86 TPG Internet Pty Ltd
10620 1529 280 157 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 1864 1821 PT TELEKOMUNIKASI INDONESIA
18566 1913 1676 Covad Communications
1785 1796 1674 PaeTec Communications, Inc.
4766 2457 1533 Korea Telecom (KIX)
7545 1539 1453 TPG Internet Pty Ltd
10620 1529 1372 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1478 1310 TATA Communications formerly
4323 1659 1262 Time Warner Telecom
22773 1339 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
/13:462 /14:801 /15:1394 /16:11948 /17:5840 /18:9798
/19:19375 /20:26043 /21:26004 /22:34385 /23:33289 /24:187619
/25:1093 /26:1271 /27:731 /28:214 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 3626 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1419 1529 TVCABLE BOGOTA
23456 1326 2670 32-bit ASN transition
11492 1090 1136 Cable One
7011 1060 1160 Citizens Utilities
7029 1058 1311 Alltel Information Services,
1785 1050 1796 PaeTec Communications, Inc.
22773 856 1339 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:287 2:41 4:16 5:1 6:3 8:335
12:1975 13:1 14:462 15:15 16:3 17:8
20:10 23:11 24:1652 27:787 31:444 32:64
33:4 34:2 37:1 38:734 40:103 41:2515
42:2 44:3 46:976 47:3 49:188 50:415
52:13 54:2 55:4 56:2 57:32 58:848
59:473 60:387 61:1182 62:1049 63:1935 64:3941
65:2255 66:3861 67:1890 68:1089 69:3040 70:723
71:376 72:1848 74:2379 75:319 76:338 77:879
78:706 79:457 80:1111 81:848 82:493 83:456
84:669 85:1080 86:552 87:757 88:333 89:1529
90:208 91:3850 92:531 93:1047 94:1289 95:835
96:446 97:249 98:878 99:36 101:73 103:81
106:10 107:14 108:71 109:1008 110:608 111:694
112:303 113:405 114:541 115:669 116:971 117:677
118:832 119:1136 120:310 121:669 122:1629 123:948
124:1267 125:1239 128:247 129:174 130:165 131:577
132:110 133:21 134:212 135:48 136:216 137:138
138:300 139:114 140:481 141:238 142:403 143:408
144:490 145:54 146:446 147:211 148:657 149:247
150:172 151:190 152:332 153:180 154:4 155:398
156:195 157:352 158:138 159:389 160:316 161:207
162:313 163:162 164:500 165:352 166:533 167:424
168:739 169:156 170:833 171:77 172:1 173:1622
174:602 175:375 176:135 177:159 178:1001 180:893
181:19 182:481 183:222 184:302 185:1 186:1243
187:723 188:862 189:906 190:4916 192:5866 193:4957
194:3492 195:3033 196:1223 197:24 198:3586 199:3948
200:5517 201:1502 202:8318 203:8405 204:4190 205:2348
206:2682 207:2815 208:3936 209:3461 210:2710 211:1432
212:2100 213:1725 214:762 215:69 216:4928 217:1642
218:547 219:366 220:1202 221:491 222:361 223:158
End of report
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