Routing Table Report 04:00 +10GMT Tue 30 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 369209
Prefixes after maximum aggregation: 167012
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183047
Total ASes present in the Internet Routing Table: 38609
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 32021
Origin ASes announcing only one prefix: 15377
Transit ASes present in the Internet Routing Table: 5232
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1168
Unregistered ASNs in the Routing Table: 667
Number of 32-bit ASNs allocated by the RIRs: 1685
Number of 32-bit ASNs visible in the Routing Table: 1356
Prefixes from 32-bit ASNs in the Routing Table: 3135
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2471338304
Equivalent to 147 /8s, 77 /16s and 161 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
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: 153811
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93047
Total APNIC prefixes after maximum aggregation: 30613
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89559
Unique aggregates announced from the APNIC address blocks: 37892
APNIC Region origin ASes present in the Internet Routing Table: 4550
APNIC Prefixes per ASN: 19.68
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 717
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: 77
Number of APNIC addresses announced to Internet: 625521952
Equivalent to 37 /8s, 72 /16s and 181 /24s
Percentage of available APNIC address space announced: 79.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 142623
Total ARIN prefixes after maximum aggregation: 73346
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114583
Unique aggregates announced from the ARIN address blocks: 47165
ARIN Region origin ASes present in the Internet Routing Table: 14593
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5600
ARIN Region transit ASes present in the Internet Routing Table: 1542
Average ARIN Region AS path length visible: 4.1
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: 803973888
Equivalent to 47 /8s, 235 /16s and 171 /24s
Percentage of available ARIN address space announced: 63.9
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: 87779
Total RIPE prefixes after maximum aggregation: 49867
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80929
Unique aggregates announced from the RIPE address blocks: 53627
RIPE Region origin ASes present in the Internet Routing Table: 15928
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7930
RIPE Region transit ASes present in the Internet Routing Table: 2508
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 968
Number of RIPE addresses announced to Internet: 488297984
Equivalent to 29 /8s, 26 /16s and 214 /24s
Percentage of available RIPE address space announced: 78.7
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: 34214
Total LACNIC prefixes after maximum aggregation: 7704
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33490
Unique aggregates announced from the LACNIC address blocks: 17505
LACNIC Region origin ASes present in the Internet Routing Table: 1511
LACNIC Prefixes per ASN: 22.16
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 295
Number of LACNIC addresses announced to Internet: 87801728
Equivalent to 5 /8s, 59 /16s and 191 /24s
Percentage of available LACNIC address space announced: 58.1
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: 8237
Total AfriNIC prefixes after maximum aggregation: 2023
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 6340
Unique aggregates announced from the AfriNIC address blocks: 2023
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26788864
Equivalent to 1 /8s, 152 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 39.9
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 2506 11047 952 Korea Telecom (KIX)
17974 1983 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1575 301 84 TPG Internet Pty Ltd
4755 1536 634 167 TATA Communications formerly
7552 1414 1064 7 Vietel Corporation
24560 1197 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1073 79 503 Sify Limited
4808 1059 2094 305 CNCGROUP IP network: China169
17488 1021 191 149 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 3579 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1822 680 123 PaeTec Communications, Inc.
4323 1614 1085 395 Time Warner Telecom
20115 1589 1539 632 Charter Communications
7029 1581 995 230 Windstream Communications Inc
22773 1441 2903 96 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1332 7051 872 AT&T WorldNet Services
2386 1213 515 876 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 541 107 182 BILISIM TELEKOM
6830 522 1810 321 UPC Distribution Services
20940 491 146 382 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
12479 464 593 7 Uni2 Autonomous System
8866 458 133 26 Bulgarian Telecommunication C
3320 423 8149 369 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 398 1855 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 1626 297 153 TVCABLE BOGOTA
8151 1403 2778 349 UniNet S.A. de C.V.
28573 1271 996 67 NET Servicos de Comunicao S.A
7303 1057 578 171 Telecom Argentina Stet-France
14420 711 56 87 CORPORACION NACIONAL DE TELEC
6503 592 450 68 AVANTEL, S.A.
22047 578 322 17 VTR PUNTO NET S.A.
27947 559 55 82 Telconet S.A
3816 531 232 96 Empresa Nacional de Telecomun
7738 515 986 31 Telecomunicacoes da Bahia 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 810 147 43 LINKdotNET AS number
8452 626 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 198 12 22 Starcomms Nigeria Limited
12258 194 28 61 Vodacom Internet Company
24835 176 70 11 RAYA Telecom - Egypt
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 3579 3817 227 bellsouth.net, inc.
23456 3135 743 1686 32-bit ASN transition
4766 2506 11047 952 Korea Telecom (KIX)
17974 1983 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1822 680 123 PaeTec Communications, Inc.
10620 1626 297 153 TVCABLE BOGOTA
4323 1614 1085 395 Time Warner Telecom
20115 1589 1539 632 Charter Communications
7029 1581 995 230 Windstream Communications Inc
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 1983 1952 PT TELEKOMUNIKASI INDONESIA
1785 1822 1699 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2506 1554 Korea Telecom (KIX)
7545 1575 1491 TPG Internet Pty Ltd
10620 1626 1473 TVCABLE BOGOTA
23456 3135 1449 32-bit ASN transition
7552 1414 1407 Vietel Corporation
4755 1536 1369 TATA Communications formerly
7029 1581 1351 Windstream 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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 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 /8:19 /9:12 /10:27 /11:81 /12:233
/13:461 /14:796 /15:1413 /16:11931 /17:5946 /18:9966
/19:19584 /20:26677 /21:26710 /22:35813 /23:34424 /24:191758
/25:1118 /26:1323 /27:750 /28:158 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2211 3579 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1536 3135 32-bit ASN transition
10620 1521 1626 TVCABLE BOGOTA
7029 1280 1581 Windstream Communications Inc
11492 1105 1151 Cable One
7011 1061 1186 Citizens Utilities
1785 1053 1822 PaeTec Communications, Inc.
22773 936 1441 Cox Communications, Inc.
30036 931 959 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:364 2:46 4:15 5:1 6:3 8:345
12:1954 13:1 14:521 15:13 16:3 17:5
20:10 23:31 24:1672 27:913 31:515 32:64
33:4 34:2 36:4 38:735 40:107 41:2405
42:50 44:3 46:1073 47:3 49:226 50:422
52:13 54:2 55:6 56:2 57:35 58:863
59:500 60:376 61:1173 62:1089 63:1930 64:4006
65:2307 66:3932 67:1925 68:1112 69:3125 70:779
71:374 72:1843 74:2416 75:330 76:337 77:863
78:708 79:470 80:1107 81:826 82:495 83:473
84:685 85:1079 86:495 87:848 88:337 89:1536
90:231 91:4051 92:527 93:1148 94:1349 95:870
96:418 97:268 98:925 99:37 101:88 103:244
106:79 107:37 108:75 109:1015 110:637 111:736
112:315 113:413 114:600 115:703 116:992 117:683
118:882 119:1198 120:331 121:686 122:1617 123:1024
124:1320 125:1330 128:247 129:177 130:165 131:578
132:118 133:21 134:213 135:50 136:214 137:135
138:291 139:116 140:488 141:286 142:387 143:430
144:484 145:61 146:460 147:219 148:635 149:251
150:155 151:190 152:441 153:179 154:5 155:399
156:201 157:354 158:141 159:458 160:318 161:207
162:333 163:166 164:513 165:366 166:537 167:432
168:748 169:150 170:840 171:83 172:1 173:1638
174:629 175:398 176:156 177:249 178:1011 180:1007
181:25 182:602 183:243 184:343 185:1 186:1394
187:694 188:935 189:877 190:5133 192:5918 193:4990
194:3511 195:3045 196:1235 197:142 198:3583 199:4071
200:5502 201:1517 202:8421 203:8480 204:4242 205:2318
206:2673 207:2828 208:4016 209:3427 210:2701 211:1463
212:2082 213:1757 214:778 215:76 216:4835 217:1595
218:554 219:348 220:1221 221:514 222:352 223:249
End of report
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