Routing Table Report 04:00 +10GMT Thu 25 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 368604
Prefixes after maximum aggregation: 166830
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 182815
Total ASes present in the Internet Routing Table: 38576
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 32009
Origin ASes announcing only one prefix: 15378
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 141
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: 1128
Unregistered ASNs in the Routing Table: 647
Number of 32-bit ASNs allocated by the RIRs: 1669
Number of 32-bit ASNs visible in the Routing Table: 1348
Prefixes from 32-bit ASNs in the Routing Table: 3112
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 109
Number of addresses announced to Internet: 2470058048
Equivalent to 147 /8s, 58 /16s and 24 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
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: 153602
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92839
Total APNIC prefixes after maximum aggregation: 30528
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89356
Unique aggregates announced from the APNIC address blocks: 37806
APNIC Region origin ASes present in the Internet Routing Table: 4546
APNIC Prefixes per ASN: 19.66
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 715
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: 76
Number of APNIC addresses announced to Internet: 624510752
Equivalent to 37 /8s, 57 /16s and 71 /24s
Percentage of available APNIC address space announced: 79.2
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: 142578
Total ARIN prefixes after maximum aggregation: 73393
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114439
Unique aggregates announced from the ARIN address blocks: 47154
ARIN Region origin ASes present in the Internet Routing Table: 14614
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5616
ARIN Region transit ASes present in the Internet Routing Table: 1548
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: 803897344
Equivalent to 47 /8s, 234 /16s and 128 /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: 87540
Total RIPE prefixes after maximum aggregation: 49769
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80752
Unique aggregates announced from the RIPE address blocks: 53511
RIPE Region origin ASes present in the Internet Routing Table: 15899
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7918
RIPE Region transit ASes present in the Internet Routing Table: 2500
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: 487956736
Equivalent to 29 /8s, 21 /16s and 161 /24s
Percentage of available RIPE address space announced: 78.6
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: 34078
Total LACNIC prefixes after maximum aggregation: 7692
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33329
Unique aggregates announced from the LACNIC address blocks: 17422
LACNIC Region origin ASes present in the Internet Routing Table: 1505
LACNIC Prefixes per ASN: 22.15
LACNIC Region origin ASes announcing only one prefix: 445
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: 292
Number of LACNIC addresses announced to Internet: 87809920
Equivalent to 5 /8s, 59 /16s and 223 /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: 8281
Total AfriNIC prefixes after maximum aggregation: 2016
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6410
Unique aggregates announced from the AfriNIC address blocks: 2070
AfriNIC Region origin ASes present in the Internet Routing Table: 475
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 99
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: 26814720
Equivalent to 1 /8s, 153 /16s and 41 /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 2503 11046 950 Korea Telecom (KIX)
17974 1923 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1578 301 85 TPG Internet Pty Ltd
4755 1536 635 168 TATA Communications formerly
7552 1412 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 1066 2098 307 CNCGROUP IP network: China169
17488 1023 192 146 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 3583 3817 227 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1820 680 123 PaeTec Communications, Inc.
4323 1614 1085 396 Time Warner Telecom
20115 1588 1538 632 Charter Communications
7029 1580 995 230 Windstream Communications Inc
22773 1441 2903 97 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1356 7051 887 AT&T WorldNet Services
2386 1230 516 891 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 483 141 375 Akamai Technologies European
3292 469 2080 404 TDC Tele Danmark
8866 457 133 26 Bulgarian Telecommunication C
12479 457 593 7 Uni2 Autonomous System
3320 425 8151 371 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
8551 403 354 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 1608 296 159 TVCABLE BOGOTA
8151 1400 2772 355 UniNet S.A. de C.V.
28573 1270 996 67 NET Servicos de Comunicao S.A
7303 1060 578 173 Telecom Argentina Stet-France
14420 707 56 86 CORPORACION NACIONAL DE TELEC
6503 601 450 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 638 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 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 174 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 3583 3817 227 bellsouth.net, inc.
23456 3112 742 1673 32-bit ASN transition
4766 2503 11046 950 Korea Telecom (KIX)
17974 1923 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1912 364 240 Covad Communications
1785 1820 680 123 PaeTec Communications, Inc.
4323 1614 1085 396 Time Warner Telecom
10620 1608 296 159 TVCABLE BOGOTA
20115 1588 1538 632 Charter Communications
7029 1580 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 1923 1892 PT TELEKOMUNIKASI INDONESIA
1785 1820 1697 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications
4766 2503 1553 Korea Telecom (KIX)
7545 1578 1493 TPG Internet Pty Ltd
10620 1608 1449 TVCABLE BOGOTA
23456 3112 1439 32-bit ASN transition
7552 1412 1405 Vietel Corporation
4755 1536 1368 TATA Communications formerly
7029 1580 1350 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 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
/13:460 /14:797 /15:1418 /16:11939 /17:5925 /18:9964
/19:19572 /20:26638 /21:26662 /22:35757 /23:34342 /24:191401
/25:1117 /26:1326 /27:751 /28:154 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3583 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1525 3112 32-bit ASN transition
10620 1503 1608 TVCABLE BOGOTA
7029 1280 1580 Windstream Communications Inc
11492 1107 1153 Cable One
7011 1056 1168 Citizens Utilities
1785 1053 1820 PaeTec Communications, Inc.
22773 935 1441 Cox Communications, Inc.
30036 890 915 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 24:1685 27:913 31:512 32:64
33:4 34:2 36:4 38:733 40:107 41:2439
42:50 44:3 46:1068 47:3 49:219 50:415
52:13 54:2 55:8 56:2 57:35 58:858
59:500 60:376 61:1176 62:1079 63:1930 64:3997
65:2304 66:3918 67:1925 68:1113 69:3114 70:778
71:373 72:1842 74:2440 75:330 76:339 77:860
78:707 79:473 80:1129 81:828 82:490 83:473
84:682 85:1080 86:493 87:840 88:337 89:1528
90:224 91:4038 92:526 93:1135 94:1349 95:872
96:418 97:267 98:927 99:37 101:79 103:237
106:79 107:35 108:75 109:1006 110:640 111:731
112:314 113:413 114:558 115:698 116:990 117:682
118:881 119:1207 120:330 121:688 122:1619 123:989
124:1316 125:1336 128:245 129:176 130:169 131:582
132:118 133:21 134:213 135:54 136:210 137:138
138:292 139:115 140:487 141:276 142:387 143:425
144:488 145:60 146:461 147:235 148:637 149:251
150:201 151:190 152:441 153:185 154:5 155:401
156:200 157:341 158:137 159:456 160:319 161:207
162:331 163:166 164:516 165:366 166:536 167:434
168:748 169:153 170:848 171:82 172:1 173:1647
174:624 175:395 176:156 177:227 178:1003 180:936
181:25 182:597 183:236 184:338 185:1 186:1364
187:679 188:937 189:854 190:5125 192:5923 193:4987
194:3509 195:3043 196:1232 197:143 198:3590 199:4056
200:5497 201:1516 202:8390 203:8461 204:4251 205:2325
206:2674 207:2805 208:4004 209:3419 210:2704 211:1463
212:2081 213:1764 214:763 215:70 216:4831 217:1611
218:552 219:354 220:1217 221:515 222:358 223:246
End of report
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