Routing Table Report 04:00 +10GMT Wed 22 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 361082
Prefixes after maximum aggregation: 163700
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178609
Total ASes present in the Internet Routing Table: 37945
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31638
Origin ASes announcing only one prefix: 15189
Transit ASes present in the Internet Routing Table: 5141
Transit-only ASes present in the Internet Routing Table: 134
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: 831
Unregistered ASNs in the Routing Table: 446
Number of 32-bit ASNs allocated by the RIRs: 1470
Number of 32-bit ASNs visible in the Routing Table: 1166
Prefixes from 32-bit ASNs in the Routing Table: 2684
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 140
Number of addresses announced to Internet: 2492257216
Equivalent to 148 /8s, 140 /16s and 211 /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: 150504
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89720
Total APNIC prefixes after maximum aggregation: 30187
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 86291
Unique aggregates announced from the APNIC address blocks: 36168
APNIC Region origin ASes present in the Internet Routing Table: 4491
APNIC Prefixes per ASN: 19.21
APNIC Region origin ASes announcing only one prefix: 1246
APNIC Region transit ASes present in the Internet Routing Table: 705
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: 622505760
Equivalent to 37 /8s, 26 /16s and 175 /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: 141086
Total ARIN prefixes after maximum aggregation: 72084
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 113030
Unique aggregates announced from the ARIN address blocks: 46551
ARIN Region origin ASes present in the Internet Routing Table: 14439
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5511
ARIN Region transit ASes present in the Internet Routing Table: 1520
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: 819103616
Equivalent to 48 /8s, 210 /16s and 135 /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: 85921
Total RIPE prefixes after maximum aggregation: 48881
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79344
Unique aggregates announced from the RIPE address blocks: 52559
RIPE Region origin ASes present in the Internet Routing Table: 15732
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7855
RIPE Region transit ASes present in the Internet Routing Table: 2481
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: 857
Number of RIPE addresses announced to Internet: 478112000
Equivalent to 28 /8s, 127 /16s and 105 /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: 33285
Total LACNIC prefixes after maximum aggregation: 7579
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32329
Unique aggregates announced from the LACNIC address blocks: 16922
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 21.99
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 243
Number of LACNIC addresses announced to Internet: 84941056
Equivalent to 5 /8s, 16 /16s and 25 /24s
Percentage of available LACNIC address space announced: 56.3
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: 8170
Total AfriNIC prefixes after maximum aggregation: 1964
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6443
Unique aggregates announced from the AfriNIC address blocks: 1966
AfriNIC Region origin ASes present in the Internet Routing Table: 464
AfriNIC Prefixes per ASN: 13.89
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 24308480
Equivalent to 1 /8s, 114 /16s and 235 /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 1850 458 41 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 85 TPG Internet Pty Ltd
4755 1479 634 168 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
7552 1054 1064 7 Vietel Corporation
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 3629 3819 250 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 1523 1527 636 Charter Communications
19262 1492 4920 307 Verizon Global Networks
7018 1359 7054 891 AT&T WorldNet Services
22773 1341 2897 87 Cox Communications, Inc.
7029 1311 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 524 107 182 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 446 134 26 Bulgarian Telecommunication C
12479 437 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 396 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 1527 280 157 TVCABLE BOGOTA
8151 1428 2731 364 UniNet S.A. de C.V.
28573 1265 993 78 NET Servicos de Comunicao S.A
7303 989 506 169 Telecom Argentina Stet-France
6503 742 354 74 AVANTEL, S.A.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 VTR PUNTO NET S.A.
3816 529 229 99 Empresa Nacional de Telecomun
7738 515 986 31 Telecomunicacoes da Bahia S.A
27947 499 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 792 445 11 TEDATA
15475 525 74 8 Nile Online
36992 305 415 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 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 3629 3819 250 bellsouth.net, inc.
23456 2684 665 1456 32-bit ASN transition
4766 2457 9500 926 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications
17974 1850 458 41 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 1538 301 85 TPG Internet Pty Ltd
10620 1527 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 1850 1809 PT TELEKOMUNIKASI INDONESIA
18566 1913 1676 Covad Communications
1785 1796 1674 PaeTec Communications, Inc.
4766 2457 1531 Korea Telecom (KIX)
7545 1538 1453 TPG Internet Pty Ltd
10620 1527 1370 TVCABLE BOGOTA
6478 1641 1365 AT&T Worldnet Services
4755 1479 1311 TATA Communications formerly
4323 1659 1262 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.
31.132.80.0/20 50704 Benefic Consult SRL
31.132.192.0/21 50704 Benefic Consult SRL
41.190.32.0/23 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 /14:798 /15:1395 /16:11959 /17:5848 /18:9787
/19:19385 /20:25990 /21:26051 /22:34417 /23:33344 /24:187944
/25:1096 /26:1270 /27:730 /28:215 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2230 3629 bellsouth.net, inc.
18566 1870 1913 Covad Communications
6478 1604 1641 AT&T Worldnet Services
10620 1417 1527 TVCABLE BOGOTA
23456 1318 2684 32-bit ASN transition
11492 1090 1136 Cable One
7011 1060 1161 Citizens Utilities
7029 1057 1311 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 2:48 4:16 5:1 6:3 8:333
12:1977 13:1 14:467 15:15 16:3 17:8
20:10 23:11 24:1654 27:791 31:472 32:64
33:4 34:2 37:1 38:736 40:103 41:2514
42:2 44:3 46:971 47:3 49:192 50:415
52:13 54:2 55:4 56:2 57:32 58:838
59:473 60:386 61:1191 62:1055 63:1936 64:3936
65:2291 66:3864 67:1893 68:1091 69:3047 70:754
71:376 72:1886 74:2376 75:318 76:339 77:884
78:707 79:460 80:1113 81:838 82:492 83:456
84:669 85:1076 86:553 87:758 88:334 89:1526
90:209 91:3854 92:533 93:1046 94:1296 95:840
96:445 97:250 98:879 99:36 101:74 103:85
106:10 107:14 108:71 109:1011 110:610 111:704
112:305 113:406 114:540 115:661 116:961 117:675
118:850 119:1144 120:307 121:668 122:1630 123:956
124:1269 125:1240 128:245 129:172 130:164 131:576
132:111 133:21 134:214 135:48 136:216 137:138
138:300 139:114 140:482 141:238 142:403 143:423
144:492 145:54 146:450 147:213 148:662 149:247
150:172 151:190 152:332 153:180 154:4 155:398
156:195 157:352 158:138 159:391 160:316 161:207
162:311 163:160 164:504 165:352 166:533 167:431
168:740 169:153 170:839 171:77 172:1 173:1623
174:606 175:371 176:138 177:167 178:1001 180:893
181:19 182:483 183:222 184:302 185:1 186:1246
187:735 188:866 189:903 190:4895 192:5856 193:4959
194:3495 195:3035 196:1224 197:26 198:3595 199:3950
200:5534 201:1500 202:8332 203:8421 204:4191 205:2340
206:2683 207:2807 208:3942 209:3463 210:2704 211:1430
212:2097 213:1732 214:775 215:69 216:4923 217:1642
218:547 219:362 220:1204 221:491 222:360 223:160
End of report
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