Routing Table Report 04:00 +10GMT Mon 05 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 370011
Prefixes after maximum aggregation: 167160
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 183245
Total ASes present in the Internet Routing Table: 38650
Prefixes per ASN: 9.57
Origin-only ASes present in the Internet Routing Table: 32067
Origin ASes announcing only one prefix: 15407
Transit ASes present in the Internet Routing Table: 5208
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: 1182
Unregistered ASNs in the Routing Table: 676
Number of 32-bit ASNs allocated by the RIRs: 1703
Number of 32-bit ASNs visible in the Routing Table: 1375
Prefixes from 32-bit ASNs in the Routing Table: 3172
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 103
Number of addresses announced to Internet: 2472146240
Equivalent to 147 /8s, 89 /16s and 245 /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: 154237
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93199
Total APNIC prefixes after maximum aggregation: 30605
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89735
Unique aggregates announced from the APNIC address blocks: 38019
APNIC Region origin ASes present in the Internet Routing Table: 4546
APNIC Prefixes per ASN: 19.74
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 705
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: 625819168
Equivalent to 37 /8s, 77 /16s and 62 /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: 142954
Total ARIN prefixes after maximum aggregation: 73454
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114850
Unique aggregates announced from the ARIN address blocks: 47250
ARIN Region origin ASes present in the Internet Routing Table: 14631
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5631
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: 804325376
Equivalent to 47 /8s, 241 /16s and 8 /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: 87959
Total RIPE prefixes after maximum aggregation: 49918
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 81080
Unique aggregates announced from the RIPE address blocks: 53654
RIPE Region origin ASes present in the Internet Routing Table: 15924
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7930
RIPE Region transit ASes present in the Internet Routing Table: 2503
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: 980
Number of RIPE addresses announced to Internet: 488378880
Equivalent to 29 /8s, 28 /16s and 18 /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: 34229
Total LACNIC prefixes after maximum aggregation: 7671
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33515
Unique aggregates announced from the LACNIC address blocks: 17453
LACNIC Region origin ASes present in the Internet Routing Table: 1509
LACNIC Prefixes per ASN: 22.21
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 300
Number of LACNIC addresses announced to Internet: 87689600
Equivalent to 5 /8s, 58 /16s and 9 /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: 8332
Total AfriNIC prefixes after maximum aggregation: 2020
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6436
Unique aggregates announced from the AfriNIC address blocks: 2015
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 26804992
Equivalent to 1 /8s, 153 /16s and 3 /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 2505 11047 954 Korea Telecom (KIX)
17974 1956 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1576 301 82 TPG Internet Pty Ltd
4755 1538 635 169 TATA Communications formerly
24560 1191 337 187 Bharti Airtel Ltd., Telemedia
9829 1151 989 28 BSNL National Internet Backbo
4808 1073 2092 305 CNCGROUP IP network: China169
9583 1073 79 503 Sify Limited
17488 1037 195 152 Hathway IP Over Cable Interne
7552 991 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 3563 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1823 680 122 PaeTec Communications, Inc.
4323 1625 1085 396 Time Warner Telecom
20115 1591 1541 632 Charter Communications
7029 1583 995 230 Windstream Communications Inc
22773 1452 2906 99 Cox Communications, Inc.
19262 1394 4716 400 Verizon Global Networks
7018 1343 7051 877 AT&T WorldNet Services
2386 1224 515 880 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 523 1811 321 UPC Distribution Services
20940 490 149 383 Akamai Technologies European
3292 470 2079 404 TDC Tele Danmark
12479 468 593 7 Uni2 Autonomous System
8866 458 133 26 Bulgarian Telecommunication C
3320 430 8152 374 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
8402 401 352 13 Corbina telecom
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 1628 298 154 TVCABLE BOGOTA
8151 1399 2775 353 UniNet S.A. de C.V.
28573 1283 1003 71 NET Servicos de Comunicao S.A
7303 1058 578 170 Telecom Argentina Stet-France
14420 715 57 88 CORPORACION NACIONAL DE TELEC
6503 591 450 68 AVANTEL, S.A.
22047 579 322 17 VTR PUNTO NET S.A.
27947 562 55 82 Telconet S.A
3816 532 232 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 809 147 43 LINKdotNET AS number
8452 643 445 11 TEDATA
15475 512 74 8 Nile Online
36992 300 415 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 207 13 14 Starcomms Nigeria Limited
12258 194 28 61 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 3563 3817 226 bellsouth.net, inc.
23456 3172 754 1703 32-bit ASN transition
4766 2505 11047 954 Korea Telecom (KIX)
17974 1956 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 237 Covad Communications
1785 1823 680 122 PaeTec Communications, Inc.
10620 1628 298 154 TVCABLE BOGOTA
4323 1625 1085 396 Time Warner Telecom
20115 1591 1541 632 Charter Communications
7029 1583 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 1956 1925 PT TELEKOMUNIKASI INDONESIA
1785 1823 1701 PaeTec Communications, Inc.
18566 1912 1675 Covad Communications
4766 2505 1551 Korea Telecom (KIX)
7545 1576 1494 TPG Internet Pty Ltd
10620 1628 1474 TVCABLE BOGOTA
23456 3172 1469 32-bit ASN transition
4755 1538 1369 TATA Communications formerly
7029 1583 1353 Windstream Communications Inc
22773 1452 1353 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 /12:233
/13:461 /14:796 /15:1410 /16:11950 /17:5945 /18:9973
/19:19651 /20:26654 /21:26768 /22:35818 /23:34513 /24:192380
/25:1116 /26:1299 /27:737 /28:159 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2200 3563 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1549 3172 32-bit ASN transition
10620 1523 1628 TVCABLE BOGOTA
7029 1282 1583 Windstream Communications Inc
11492 1107 1153 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1823 PaeTec Communications, Inc.
22773 942 1452 Cox Communications, Inc.
30036 930 958 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 2:51 4:15 5:1 6:3 8:348
12:1950 13:1 14:523 15:13 16:3 17:5
20:10 23:31 24:1679 27:930 31:520 32:64
33:3 34:2 36:4 38:736 40:107 41:2432
42:40 44:3 46:1077 47:3 49:233 50:413
52:13 54:2 55:3 56:2 57:35 58:874
59:491 60:376 61:1169 62:1091 63:1939 64:4022
65:2303 66:3932 67:1937 68:1108 69:3132 70:781
71:375 72:1853 74:2429 75:328 76:339 77:865
78:705 79:454 80:1117 81:839 82:493 83:495
84:684 85:1084 86:496 87:860 88:338 89:1538
90:231 91:4055 92:525 93:1136 94:1358 95:877
96:422 97:271 98:926 99:37 101:203 103:250
106:79 107:42 108:76 109:1015 110:664 111:748
112:309 113:429 114:563 115:704 116:993 117:682
118:884 119:1180 120:333 121:686 122:1614 123:1003
124:1343 125:1355 128:248 129:178 130:166 131:581
132:118 133:21 134:214 135:53 136:213 137:136
138:294 139:116 140:490 141:286 142:389 143:421
144:486 145:61 146:464 147:222 148:630 149:250
150:153 151:190 152:440 153:179 154:6 155:396
156:201 157:354 158:141 159:458 160:319 161:207
162:335 163:167 164:513 165:367 166:537 167:433
168:748 169:146 170:851 171:84 172:1 173:1657
174:617 175:399 176:156 177:244 178:1018 180:1015
181:25 182:610 183:239 184:352 185:1 186:1389
187:680 188:936 189:878 190:5103 192:5920 193:4997
194:3521 195:3043 196:1234 197:145 198:3584 199:4085
200:5497 201:1637 202:8506 203:8501 204:4246 205:2327
206:2675 207:2832 208:4024 209:3435 210:2714 211:1466
212:2088 213:1750 214:752 215:76 216:4855 217:1612
218:549 219:344 220:1195 221:515 222:353 223:261
End of report
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