Routing Table Report 04:00 +10GMT Fri 26 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 368814
Prefixes after maximum aggregation: 166938
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182927
Total ASes present in the Internet Routing Table: 38607
Prefixes per ASN: 9.55
Origin-only ASes present in the Internet Routing Table: 32022
Origin ASes announcing only one prefix: 15388
Transit ASes present in the Internet Routing Table: 5236
Transit-only ASes present in the Internet Routing Table: 144
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: 1163
Unregistered ASNs in the Routing Table: 660
Number of 32-bit ASNs allocated by the RIRs: 1674
Number of 32-bit ASNs visible in the Routing Table: 1349
Prefixes from 32-bit ASNs in the Routing Table: 3111
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2471291712
Equivalent to 147 /8s, 76 /16s and 235 /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: 153728
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92770
Total APNIC prefixes after maximum aggregation: 30546
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89274
Unique aggregates announced from the APNIC address blocks: 37813
APNIC Region origin ASes present in the Internet Routing Table: 4544
APNIC Prefixes per ASN: 19.65
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 716
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: 75
Number of APNIC addresses announced to Internet: 625197600
Equivalent to 37 /8s, 67 /16s and 194 /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: 142622
Total ARIN prefixes after maximum aggregation: 73418
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114524
Unique aggregates announced from the ARIN address blocks: 47165
ARIN Region origin ASes present in the Internet Routing Table: 14614
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5618
ARIN Region transit ASes present in the Internet Routing Table: 1550
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: 804054016
Equivalent to 47 /8s, 236 /16s and 228 /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: 87673
Total RIPE prefixes after maximum aggregation: 49811
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80833
Unique aggregates announced from the RIPE address blocks: 53556
RIPE Region origin ASes present in the Internet Routing Table: 15918
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7922
RIPE Region transit ASes present in the Internet Routing Table: 2507
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: 964
Number of RIPE addresses announced to Internet: 488241408
Equivalent to 29 /8s, 25 /16s and 249 /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: 34115
Total LACNIC prefixes after maximum aggregation: 7690
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 33378
Unique aggregates announced from the LACNIC address blocks: 17440
LACNIC Region origin ASes present in the Internet Routing Table: 1505
LACNIC Prefixes per ASN: 22.18
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 278
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: 294
Number of LACNIC addresses announced to Internet: 87820928
Equivalent to 5 /8s, 60 /16s and 10 /24s
Percentage of available LACNIC address space announced: 58.2
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: 8350
Total AfriNIC prefixes after maximum aggregation: 2035
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6453
Unique aggregates announced from the AfriNIC address blocks: 2090
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.31
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: 4.8
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: 26850816
Equivalent to 1 /8s, 153 /16s and 182 /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 2504 11046 951 Korea Telecom (KIX)
17974 1933 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1578 301 84 TPG Internet Pty Ltd
4755 1537 635 168 TATA Communications formerly
7552 1416 1064 7 Vietel Corporation
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 BSNL National Internet Backbo
9583 1076 79 496 Sify Limited
4808 1059 2094 305 CNCGROUP IP network: China169
17488 1020 192 147 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 3582 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1822 680 123 PaeTec Communications, Inc.
4323 1613 1085 395 Time Warner Telecom
20115 1588 1538 632 Charter Communications
7029 1563 995 230 Windstream Communications Inc
22773 1442 2903 97 Cox Communications, Inc.
19262 1398 4776 396 Verizon Global Networks
7018 1347 7050 879 AT&T WorldNet Services
2386 1226 516 888 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 538 107 181 BILISIM TELEKOM
6830 522 1810 321 UPC Distribution Services
20940 490 146 381 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 458 133 26 Bulgarian Telecommunication C
12479 456 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
3301 399 1855 348 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 1611 297 155 TVCABLE BOGOTA
8151 1404 2790 352 UniNet S.A. de C.V.
28573 1272 996 67 NET Servicos de Comunicao S.A
7303 1058 578 172 Telecom Argentina Stet-France
14420 707 56 86 CORPORACION NACIONAL DE TELEC
6503 600 450 75 AVANTEL, S.A.
22047 578 322 17 VTR PUNTO NET S.A.
27947 557 55 82 Telconet S.A
3816 532 232 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 808 145 59 LINKdotNET AS number
8452 635 445 11 TEDATA
15475 512 74 8 Nile Online
36992 303 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 230 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 194 28 61 Vodacom Internet Company
24835 175 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 3582 3817 227 bellsouth.net, inc.
23456 3111 742 1676 32-bit ASN transition
4766 2504 11046 951 Korea Telecom (KIX)
17974 1933 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1822 680 123 PaeTec Communications, Inc.
4323 1613 1085 395 Time Warner Telecom
10620 1611 297 155 TVCABLE BOGOTA
20115 1588 1538 632 Charter Communications
7545 1578 301 84 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 1933 1902 PT TELEKOMUNIKASI INDONESIA
1785 1822 1699 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2504 1553 Korea Telecom (KIX)
7545 1578 1494 TPG Internet Pty Ltd
10620 1611 1456 TVCABLE BOGOTA
23456 3111 1435 32-bit ASN transition
7552 1416 1409 Vietel Corporation
4755 1537 1369 TATA Communications formerly
22773 1442 1345 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 /8:19 /9:12 /10:27 /11:81 /12:233
/13:461 /14:798 /15:1416 /16:11942 /17:5938 /18:9964
/19:19581 /20:26659 /21:26697 /22:35767 /23:34411 /24:191447
/25:1116 /26:1325 /27:754 /28:157 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3582 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1532 3111 32-bit ASN transition
10620 1506 1611 TVCABLE BOGOTA
7029 1263 1563 Windstream Communications Inc
11492 1107 1153 Cable One
7011 1063 1188 Citizens Utilities
1785 1053 1822 PaeTec Communications, Inc.
22773 936 1442 Cox Communications, Inc.
30036 890 916 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:360 2:44 4:15 5:1 6:3 8:344
12:1958 13:1 14:520 15:15 16:3 17:5
20:10 23:31 24:1677 27:912 31:514 32:64
33:4 34:2 36:4 38:734 40:107 41:2446
42:50 44:3 46:1069 47:3 49:218 50:416
52:13 54:2 55:5 56:2 57:35 58:860
59:501 60:376 61:1176 62:1092 63:1927 64:4002
65:2304 66:3921 67:1920 68:1113 69:3123 70:779
71:373 72:1842 74:2437 75:330 76:339 77:864
78:708 79:471 80:1123 81:829 82:491 83:473
84:684 85:1078 86:494 87:849 88:337 89:1537
90:224 91:4051 92:524 93:1128 94:1346 95:860
96:419 97:267 98:925 99:37 101:79 103:235
106:79 107:36 108:75 109:1009 110:636 111:733
112:314 113:411 114:552 115:702 116:994 117:682
118:882 119:1196 120:331 121:688 122:1617 123:988
124:1314 125:1336 128:245 129:176 130:167 131:581
132:119 133:21 134:213 135:54 136:215 137:137
138:293 139:115 140:489 141:278 142:387 143:427
144:487 145:60 146:461 147:223 148:637 149:251
150:201 151:190 152:441 153:179 154:5 155:401
156:200 157:341 158:138 159:457 160:319 161:207
162:330 163:166 164:518 165:366 166:533 167:436
168:745 169:152 170:841 171:82 172:1 173:1645
174:624 175:395 176:156 177:231 178:1006 180:942
181:25 182:535 183:237 184:338 185:1 186:1376
187:691 188:937 189:864 190:5122 192:5923 193:4989
194:3509 195:3045 196:1239 197:143 198:3592 199:4060
200:5499 201:1515 202:8400 203:8470 204:4251 205:2324
206:2670 207:2817 208:4006 209:3436 210:2704 211:1462
212:2081 213:1760 214:779 215:70 216:4831 217:1612
218:552 219:352 220:1219 221:515 222:352 223:247
End of report
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