Routing Table Report 04:00 +10GMT Sun 24 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 364342
Prefixes after maximum aggregation: 165671
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 180827
Total ASes present in the Internet Routing Table: 38256
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 31796
Origin ASes announcing only one prefix: 15310
Transit ASes present in the Internet Routing Table: 5193
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: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 949
Unregistered ASNs in the Routing Table: 549
Number of 32-bit ASNs allocated by the RIRs: 1585
Number of 32-bit ASNs visible in the Routing Table: 1267
Prefixes from 32-bit ASNs in the Routing Table: 2922
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2484348992
Equivalent to 148 /8s, 20 /16s and 40 /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: 91.1
Total number of prefixes smaller than registry allocations: 151721
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91278
Total APNIC prefixes after maximum aggregation: 30359
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 87868
Unique aggregates announced from the APNIC address blocks: 37454
APNIC Region origin ASes present in the Internet Routing Table: 4522
APNIC Prefixes per ASN: 19.43
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 62
Number of APNIC addresses announced to Internet: 622434592
Equivalent to 37 /8s, 25 /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: 141743
Total ARIN prefixes after maximum aggregation: 73177
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113607
Unique aggregates announced from the ARIN address blocks: 46682
ARIN Region origin ASes present in the Internet Routing Table: 14510
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5570
ARIN Region transit ASes present in the Internet Routing Table: 1525
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 802761344
Equivalent to 47 /8s, 217 /16s and 42 /24s
Percentage of available ARIN address space announced: 63.8
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: 86548
Total RIPE prefixes after maximum aggregation: 49314
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79931
Unique aggregates announced from the RIPE address blocks: 52925
RIPE Region origin ASes present in the Internet Routing Table: 15809
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7889
RIPE Region transit ASes present in the Internet Routing Table: 2505
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: 918
Number of RIPE addresses announced to Internet: 484034688
Equivalent to 28 /8s, 217 /16s and 200 /24s
Percentage of available RIPE address space announced: 78.0
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: 33512
Total LACNIC prefixes after maximum aggregation: 7623
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32760
Unique aggregates announced from the LACNIC address blocks: 17073
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 271
Number of LACNIC addresses announced to Internet: 86434816
Equivalent to 5 /8s, 38 /16s and 228 /24s
Percentage of available LACNIC address space announced: 57.2
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: 8162
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6474
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.66
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.7
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: 24500480
Equivalent to 1 /8s, 117 /16s and 217 /24s
Percentage of available AfriNIC address space announced: 36.5
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 2474 11045 942 Korea Telecom (KIX)
17974 1789 508 32 PT TELEKOMUNIKASI INDONESIA
7545 1555 301 85 TPG Internet Pty Ltd
4755 1507 635 171 TATA Communications formerly
7552 1298 1064 7 Vietel Corporation
24560 1161 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 BSNL National Internet Backbo
9583 1056 77 497 Sify Limited
4808 1051 2092 299 CNCGROUP IP network: China169
17488 965 188 112 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 3615 3818 240 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1811 681 122 PaeTec Communications, Inc.
4323 1615 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
19262 1411 4760 391 Verizon Global Networks
7018 1363 7068 890 AT&T WorldNet Services
22773 1353 2897 89 Cox Communications, Inc.
7029 1293 791 304 Windstream Communications Inc
2386 1258 520 907 AT&T Data Communications Serv
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 534 106 185 BILISIM TELEKOM
6830 512 1788 316 UPC Distribution Services
3292 468 2078 403 TDC Tele Danmark
20940 459 132 354 Akamai Technologies European
12479 454 593 7 Uni2 Autonomous System
8866 453 133 26 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
8551 403 354 44 Bezeq International
702 397 1802 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 1559 287 163 TVCABLE BOGOTA
28573 1283 995 78 NET Servicos de Comunicao S.A
8151 1270 2746 351 UniNet S.A. de C.V.
7303 991 514 166 Telecom Argentina Stet-France
6503 750 354 73 AVANTEL, S.A.
14420 700 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 532 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 508 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
36992 824 489 19 Etisalat MISR
24863 796 147 42 LINKdotNET AS number
8452 761 445 11 TEDATA
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 161 78 10 RAYA Telecom - Egypt
15706 158 32 6 Sudatel Internet Exchange Aut
29571 158 17 11 Ci Telecom Autonomous system
16637 146 409 84 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 3615 3818 240 bellsouth.net, inc.
23456 2922 710 1569 32-bit ASN transition
4766 2474 11045 942 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1811 681 122 PaeTec Communications, Inc.
17974 1789 508 32 PT TELEKOMUNIKASI INDONESIA
4323 1615 1082 401 Time Warner Telecom
20115 1590 1538 623 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1555 301 85 TPG Internet Pty Ltd
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 1789 1757 PT TELEKOMUNIKASI INDONESIA
1785 1811 1689 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2474 1532 Korea Telecom (KIX)
7545 1555 1470 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2922 1353 32-bit ASN transition
4755 1507 1336 TATA Communications formerly
7552 1298 1291 Vietel Corporation
22773 1353 1264 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
41.222.79.0/24 36938 >>UNKNOWN<<
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
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 /8:20 /9:12 /10:27 /11:80 /12:232
/13:465 /14:798 /15:1402 /16:12041 /17:5880 /18:9836
/19:19529 /20:26181 /21:26254 /22:34962 /23:33862 /24:189630
/25:1078 /26:1263 /27:733 /28:40 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2235 3615 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1454 1559 TVCABLE BOGOTA
23456 1444 2922 32-bit ASN transition
11492 1096 1142 Cable One
7011 1055 1157 Citizens Utilities
1785 1054 1811 PaeTec Communications, Inc.
7029 1040 1293 Windstream Communications Inc
6478 997 1025 AT&T Worldnet Services
22773 868 1353 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:335 2:45 4:16 5:1 6:3 8:338
12:1964 13:1 14:492 15:15 16:3 17:5
20:10 23:14 24:1680 27:842 31:505 32:64
33:4 34:2 36:4 38:728 40:104 41:2568
42:35 44:3 46:1050 47:3 49:202 50:383
52:13 54:2 55:4 56:2 57:35 58:860
59:472 60:381 61:1179 62:1031 63:1928 64:3988
65:2297 66:3879 67:1883 68:1107 69:3057 70:768
71:373 72:1869 74:2421 75:324 76:341 77:853
78:703 79:466 80:1114 81:840 82:498 83:465
84:691 85:1063 86:519 87:764 88:333 89:1537
90:224 91:3943 92:526 93:1060 94:1338 95:862
96:420 97:263 98:891 99:37 101:74 103:143
106:75 107:24 108:73 109:1019 110:611 111:713
112:305 113:410 114:557 115:683 116:986 117:690
118:863 119:1169 120:315 121:675 122:1608 123:976
124:1305 125:1278 128:246 129:169 130:170 131:579
132:113 133:21 134:213 135:52 136:215 137:139
138:300 139:116 140:480 141:252 142:403 143:414
144:476 145:54 146:452 147:211 148:614 149:249
150:159 151:189 152:336 153:182 154:5 155:395
156:196 157:350 158:140 159:455 160:315 161:204
162:310 163:166 164:505 165:365 166:531 167:433
168:739 169:153 170:845 171:80 172:1 173:1614
174:624 175:381 176:143 177:170 178:1007 180:906
181:23 182:508 183:234 184:343 185:1 186:1307
187:762 188:891 189:949 190:5004 192:5913 193:4973
194:3517 195:3012 196:1203 197:43 198:3581 199:3981
200:5564 201:1477 202:8416 203:8441 204:4228 205:2333
206:2666 207:2806 208:3992 209:3436 210:2684 211:1446
212:2085 213:1744 214:761 215:70 216:4951 217:1652
218:545 219:347 220:1231 221:497 222:360 223:221
End of report
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