Routing Table Report 04:00 +10GMT Thu 08 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370373
Prefixes after maximum aggregation: 167351
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183636
Total ASes present in the Internet Routing Table: 38710
Prefixes per ASN: 9.57
Origin-only ASes present in the Internet Routing Table: 32105
Origin ASes announcing only one prefix: 15431
Transit ASes present in the Internet Routing Table: 5216
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 1188
Unregistered ASNs in the Routing Table: 684
Number of 32-bit ASNs allocated by the RIRs: 1708
Number of 32-bit ASNs visible in the Routing Table: 1389
Prefixes from 32-bit ASNs in the Routing Table: 3195
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 2473441920
Equivalent to 147 /8s, 109 /16s and 186 /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: 154425
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93261
Total APNIC prefixes after maximum aggregation: 30677
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89787
Unique aggregates announced from the APNIC address blocks: 38064
APNIC Region origin ASes present in the Internet Routing Table: 4555
APNIC Prefixes per ASN: 19.71
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 708
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: 79
Number of APNIC addresses announced to Internet: 626058336
Equivalent to 37 /8s, 80 /16s and 228 /24s
Percentage of available APNIC address space announced: 79.4
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: 143108
Total ARIN prefixes after maximum aggregation: 73429
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114966
Unique aggregates announced from the ARIN address blocks: 47296
ARIN Region origin ASes present in the Internet Routing Table: 14639
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5638
ARIN Region transit ASes present in the Internet Routing Table: 1555
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803848192
Equivalent to 47 /8s, 233 /16s and 192 /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: 87883
Total RIPE prefixes after maximum aggregation: 49970
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80974
Unique aggregates announced from the RIPE address blocks: 53778
RIPE Region origin ASes present in the Internet Routing Table: 15941
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7937
RIPE Region transit ASes present in the Internet Routing Table: 2498
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: 989
Number of RIPE addresses announced to Internet: 488432128
Equivalent to 29 /8s, 28 /16s and 226 /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: 34452
Total LACNIC prefixes after maximum aggregation: 7732
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33756
Unique aggregates announced from the LACNIC address blocks: 17632
LACNIC Region origin ASes present in the Internet Routing Table: 1521
LACNIC Prefixes per ASN: 22.19
LACNIC Region origin ASes announcing only one prefix: 450
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: 305
Number of LACNIC addresses announced to Internet: 88269184
Equivalent to 5 /8s, 66 /16s and 225 /24s
Percentage of available LACNIC address space announced: 58.5
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: 8310
Total AfriNIC prefixes after maximum aggregation: 2017
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6412
Unique aggregates announced from the AfriNIC address blocks: 1983
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.6
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: 27264768
Equivalent to 1 /8s, 160 /16s and 7 /24s
Percentage of available AfriNIC address space announced: 40.6
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 2507 11047 954 Korea Telecom (KIX)
17974 1977 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1581 301 83 TPG Internet Pty Ltd
4755 1548 635 170 TATA Communications formerly
24560 1177 336 193 Bharti Airtel Ltd., Telemedia
9829 1152 989 28 BSNL National Internet Backbo
4808 1080 2099 308 CNCGROUP IP network: China169
9583 1073 79 503 Sify Limited
7552 992 1062 11 Vietel Corporation
17488 986 191 158 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 3564 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
4323 1624 1085 395 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1586 995 231 Windstream Communications Inc
22773 1449 2906 99 Cox Communications, Inc.
19262 1394 4724 399 Verizon Global Networks
7018 1333 7050 874 AT&T WorldNet Services
30036 1322 243 687 Mediacom Communications Corp
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 543 107 178 BILISIM TELEKOM
6830 523 1811 321 UPC Distribution Services
20940 493 151 385 Akamai Technologies European
3292 470 2079 404 TDC Tele Danmark
12479 466 593 7 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
702 396 1800 311 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 1643 301 156 TVCABLE BOGOTA
8151 1409 2799 353 UniNet S.A. de C.V.
28573 1299 1003 71 NET Servicos de Comunicao S.A
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 588 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 564 55 82 Telconet S.A
3816 533 232 97 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 812 147 43 LINKdotNET AS number
8452 644 445 11 TEDATA
15475 512 74 8 Nile Online
36992 303 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 193 28 62 Vodacom Internet Company
24835 181 70 12 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 3564 3817 226 bellsouth.net, inc.
23456 3195 759 1720 32-bit ASN transition
4766 2507 11047 954 Korea Telecom (KIX)
17974 1977 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1822 680 122 PaeTec Communications, Inc.
10620 1643 301 156 TVCABLE BOGOTA
4323 1624 1085 395 Time Warner Telecom
20115 1592 1541 632 Charter Communications
7029 1586 995 231 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 1977 1946 PT TELEKOMUNIKASI INDONESIA
1785 1822 1700 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2507 1553 Korea Telecom (KIX)
7545 1581 1498 TPG Internet Pty Ltd
10620 1643 1487 TVCABLE BOGOTA
23456 3195 1475 32-bit ASN transition
4755 1548 1378 TATA Communications formerly
7029 1586 1355 Windstream Communications Inc
22773 1449 1350 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<<
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 /12:234
/13:461 /14:798 /15:1411 /16:11951 /17:5930 /18:9991
/19:19661 /20:26682 /21:26867 /22:35950 /23:34622 /24:192362
/25:1110 /26:1298 /27:732 /28:165 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2201 3564 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1543 3195 32-bit ASN transition
10620 1538 1643 TVCABLE BOGOTA
7029 1286 1586 Windstream Communications Inc
30036 1285 1322 Mediacom Communications Corp
11492 1108 1154 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1822 PaeTec Communications, Inc.
22773 939 1449 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:366 2:48 4:15 5:1 6:3 8:348
12:1948 13:1 14:530 15:13 16:3 17:5
20:10 23:31 24:1678 27:934 31:523 32:64
33:3 34:2 36:4 38:736 40:107 41:2437
42:40 44:3 46:958 47:3 49:235 50:408
52:13 54:2 55:4 56:2 57:35 58:868
59:495 60:376 61:1171 62:1081 63:1940 64:4025
65:2304 66:3933 67:1940 68:1115 69:3168 70:781
71:376 72:1853 74:2432 75:328 76:339 77:867
78:667 79:455 80:1124 81:839 82:492 83:493
84:683 85:1092 86:414 87:860 88:343 89:1540
90:231 91:4072 92:523 93:1143 94:1357 95:864
96:422 97:272 98:924 99:37 101:202 103:271
106:71 107:43 108:76 109:1022 110:664 111:744
112:311 113:432 114:564 115:705 116:922 117:683
118:884 119:1198 120:333 121:689 122:1606 123:1007
124:1348 125:1355 128:248 129:178 130:166 131:582
132:119 133:21 134:215 135:53 136:212 137:136
138:294 139:116 140:491 141:289 142:389 143:426
144:490 145:61 146:466 147:227 148:633 149:250
150:153 151:190 152:443 153:179 154:6 155:394
156:201 157:354 158:143 159:458 160:319 161:207
162:336 163:175 164:513 165:367 166:537 167:433
168:748 169:145 170:852 171:84 172:1 173:1655
174:630 175:386 176:159 177:254 178:1006 180:1013
181:26 182:607 183:230 184:348 185:1 186:1414
187:684 188:936 189:871 190:5146 192:5930 193:4990
194:3524 195:3045 196:1237 197:147 198:3587 199:4090
200:5517 201:1638 202:8536 203:8490 204:4243 205:2332
206:2673 207:2833 208:4019 209:3436 210:2692 211:1466
212:2087 213:1762 214:776 215:76 216:4855 217:1618
218:550 219:344 220:1197 221:515 222:348 223:261
End of report
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