Routing Table Report 04:00 +10GMT Mon 01 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 364874
Prefixes after maximum aggregation: 165870
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 181400
Total ASes present in the Internet Routing Table: 38306
Prefixes per ASN: 9.53
Origin-only ASes present in the Internet Routing Table: 31804
Origin ASes announcing only one prefix: 15304
Transit ASes present in the Internet Routing Table: 5218
Transit-only ASes present in the Internet Routing Table: 141
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: 1014
Unregistered ASNs in the Routing Table: 572
Number of 32-bit ASNs allocated by the RIRs: 1606
Number of 32-bit ASNs visible in the Routing Table: 1284
Prefixes from 32-bit ASNs in the Routing Table: 2971
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2488348416
Equivalent to 148 /8s, 81 /16s and 47 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 152200
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91136
Total APNIC prefixes after maximum aggregation: 30421
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 87674
Unique aggregates announced from the APNIC address blocks: 37604
APNIC Region origin ASes present in the Internet Routing Table: 4519
APNIC Prefixes per ASN: 19.40
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 715
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 67
Number of APNIC addresses announced to Internet: 622602592
Equivalent to 37 /8s, 28 /16s and 41 /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: 141837
Total ARIN prefixes after maximum aggregation: 73146
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113678
Unique aggregates announced from the ARIN address blocks: 46753
ARIN Region origin ASes present in the Internet Routing Table: 14524
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5567
ARIN Region transit ASes present in the Internet Routing Table: 1540
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: 803234176
Equivalent to 47 /8s, 224 /16s and 97 /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: 86838
Total RIPE prefixes after maximum aggregation: 49437
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80209
Unique aggregates announced from the RIPE address blocks: 53060
RIPE Region origin ASes present in the Internet Routing Table: 15831
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7897
RIPE Region transit ASes present in the Internet Routing Table: 2509
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: 925
Number of RIPE addresses announced to Internet: 484337024
Equivalent to 28 /8s, 222 /16s and 101 /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: 33825
Total LACNIC prefixes after maximum aggregation: 7636
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33034
Unique aggregates announced from the LACNIC address blocks: 17249
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 22.19
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 277
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: 276
Number of LACNIC addresses announced to Internet: 87251968
Equivalent to 5 /8s, 51 /16s and 92 /24s
Percentage of available LACNIC address space announced: 57.8
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: 8077
Total AfriNIC prefixes after maximum aggregation: 1962
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6330
Unique aggregates announced from the AfriNIC address blocks: 2006
AfriNIC Region origin ASes present in the Internet Routing Table: 470
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 5.7
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: 26843648
Equivalent to 1 /8s, 153 /16s and 154 /24s
Percentage of available AfriNIC address space announced: 40.0
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 2493 11046 949 Korea Telecom (KIX)
17974 1749 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 86 TPG Internet Pty Ltd
4755 1512 635 172 TATA Communications formerly
24560 1194 336 187 Bharti Airtel Ltd., Telemedia
9829 1115 929 42 BSNL National Internet Backbo
9583 1061 78 499 Sify Limited
4808 1052 2093 299 CNCGROUP IP network: China169
17488 969 190 113 Hathway IP Over Cable Interne
7552 953 1062 11 Vietel Corporation
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 3619 3818 239 bellsouth.net, inc.
18566 1913 365 241 Covad Communications
1785 1812 681 121 PaeTec Communications, Inc.
4323 1615 1082 401 Time Warner Telecom
7029 1605 993 229 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1414 4792 393 Verizon Global Networks
22773 1406 2900 90 Cox Communications, Inc.
7018 1360 7068 889 AT&T WorldNet Services
2386 1247 520 899 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 466 133 358 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 434 32 53 AzerSat LLC.
3320 425 8151 371 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 397 1855 346 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 1565 288 167 TVCABLE BOGOTA
8151 1413 2748 351 UniNet S.A. de C.V.
28573 1283 996 67 NET Servicos de Comunicao S.A
7303 1059 577 173 Telecom Argentina Stet-France
6503 750 450 68 AVANTEL, S.A.
14420 701 56 82 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 510 53 54 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
8452 799 445 11 TEDATA
24863 798 147 36 LINKdotNET AS number
15475 514 74 8 Nile Online
36992 314 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 227 13 6 Starcomms Nigeria Limited
24835 177 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 147 665 85 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 3619 3818 239 bellsouth.net, inc.
23456 2971 717 1591 32-bit ASN transition
4766 2493 11046 949 Korea Telecom (KIX)
18566 1913 365 241 Covad Communications
1785 1812 681 121 PaeTec Communications, Inc.
17974 1749 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1615 1082 401 Time Warner Telecom
7029 1605 993 229 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1565 288 167 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 1749 1718 PT TELEKOMUNIKASI INDONESIA
1785 1812 1691 PaeTec Communications, Inc.
18566 1913 1672 Covad Communications
4766 2493 1544 Korea Telecom (KIX)
7545 1559 1473 TPG Internet Pty Ltd
10620 1565 1398 TVCABLE BOGOTA
23456 2971 1380 32-bit ASN transition
7029 1605 1376 Windstream Communications Inc
4755 1512 1340 TATA Communications formerly
22773 1406 1316 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 /12:233
/13:465 /14:799 /15:1404 /16:12052 /17:5893 /18:9823
/19:19517 /20:26222 /21:26280 /22:34898 /23:33878 /24:189936
/25:1099 /26:1286 /27:733 /28:200 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2242 3619 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1462 2971 32-bit ASN transition
10620 1460 1565 TVCABLE BOGOTA
7029 1303 1605 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1057 1159 Citizens Utilities
1785 1053 1812 PaeTec Communications, Inc.
6478 967 995 AT&T Worldnet Services
22773 905 1406 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:341 2:46 4:16 5:1 6:3 8:341
12:1962 13:1 14:495 15:15 16:3 17:5
20:10 23:18 24:1673 27:856 31:514 32:64
33:4 34:2 36:4 38:728 40:104 41:2491
42:36 44:3 46:1052 47:3 49:201 50:375
52:13 54:2 55:5 56:2 57:34 58:868
59:486 60:378 61:1184 62:1057 63:1940 64:3985
65:2301 66:3903 67:1888 68:1110 69:3037 70:779
71:373 72:1860 74:2439 75:328 76:341 77:863
78:703 79:475 80:1121 81:838 82:501 83:480
84:691 85:1063 86:517 87:763 88:333 89:1533
90:224 91:3988 92:527 93:1058 94:1336 95:866
96:420 97:263 98:913 99:37 101:83 103:164
106:79 107:27 108:73 109:1034 110:610 111:716
112:305 113:401 114:556 115:675 116:988 117:663
118:852 119:1181 120:314 121:678 122:1607 123:973
124:1312 125:1285 128:246 129:169 130:170 131:579
132:115 133:21 134:214 135:52 136:215 137:132
138:296 139:115 140:478 141:254 142:403 143:420
144:485 145:57 146:455 147:213 148:670 149:252
150:159 151:189 152:341 153:182 154:5 155:399
156:199 157:352 158:140 159:456 160:318 161:205
162:310 163:168 164:507 165:365 166:532 167:432
168:740 169:153 170:832 171:81 172:1 173:1619
174:610 175:390 176:147 177:186 178:992 180:907
181:26 182:512 183:234 184:342 185:1 186:1312
187:758 188:895 189:964 190:5039 192:5921 193:4981
194:3511 195:3063 196:1201 197:47 198:3583 199:3999
200:5548 201:1475 202:8414 203:8436 204:4249 205:2317
206:2665 207:2809 208:3990 209:3409 210:2683 211:1455
212:2089 213:1759 214:786 215:68 216:4891 217:1630
218:547 219:347 220:1203 221:494 222:355 223:231
End of report
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