Routing Table Report 04:00 +10GMT Mon 26 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 374391
Prefixes after maximum aggregation: 168455
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185199
Total ASes present in the Internet Routing Table: 38886
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 32230
Origin ASes announcing only one prefix: 15495
Transit ASes present in the Internet Routing Table: 5222
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: 35
Max AS path prepend of ASN (23456) 31
Prefixes from unregistered ASNs in the Routing Table: 1408
Unregistered ASNs in the Routing Table: 775
Number of 32-bit ASNs allocated by the RIRs: 1771
Number of 32-bit ASNs visible in the Routing Table: 1434
Prefixes from 32-bit ASNs in the Routing Table: 3278
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2479984608
Equivalent to 147 /8s, 209 /16s and 143 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 156446
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94145
Total APNIC prefixes after maximum aggregation: 30789
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90658
Unique aggregates announced from the APNIC address blocks: 38221
APNIC Region origin ASes present in the Internet Routing Table: 4573
APNIC Prefixes per ASN: 19.82
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 710
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 89
Number of APNIC addresses announced to Internet: 628064352
Equivalent to 37 /8s, 111 /16s and 128 /24s
Percentage of available APNIC address space announced: 79.7
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: 143825
Total ARIN prefixes after maximum aggregation: 73916
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115923
Unique aggregates announced from the ARIN address blocks: 47980
ARIN Region origin ASes present in the Internet Routing Table: 14689
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5664
ARIN Region transit ASes present in the Internet Routing Table: 1563
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 805026816
Equivalent to 47 /8s, 251 /16s and 188 /24s
Percentage of available ARIN address space announced: 64.0
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: 89511
Total RIPE prefixes after maximum aggregation: 50336
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82212
Unique aggregates announced from the RIPE address blocks: 54071
RIPE Region origin ASes present in the Internet Routing Table: 15992
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2504
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: 1018
Number of RIPE addresses announced to Internet: 489758592
Equivalent to 29 /8s, 49 /16s and 31 /24s
Percentage of available RIPE address space announced: 78.9
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: 34965
Total LACNIC prefixes after maximum aggregation: 7779
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34266
Unique aggregates announced from the LACNIC address blocks: 17905
LACNIC Region origin ASes present in the Internet Routing Table: 1528
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 275
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: 311
Number of LACNIC addresses announced to Internet: 89283200
Equivalent to 5 /8s, 82 /16s and 90 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8498
Total AfriNIC prefixes after maximum aggregation: 1995
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6582
Unique aggregates announced from the AfriNIC address blocks: 1990
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 153
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: 27359744
Equivalent to 1 /8s, 161 /16s and 122 /24s
Percentage of available AfriNIC address space announced: 40.8
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 11048 956 Korea Telecom (KIX)
17974 1993 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1600 303 86 TPG Internet Pty Ltd
4755 1541 638 175 TATA Communications formerly
7552 1393 1064 7 Vietel Corporation
24560 1181 337 193 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1085 80 502 Sify Limited
4808 1072 2096 303 CNCGROUP IP network: China169
18101 952 118 141 Reliance Infocom Ltd Internet
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 3561 3817 226 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
4323 1624 1082 391 Time Warner Telecom
20115 1597 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1337 7050 871 AT&T WorldNet Services
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
8402 1015 352 13 Corbina telecom
34984 566 108 181 BILISIM TELEKOM
20940 536 180 414 Akamai Technologies European
6830 533 1813 325 UPC Distribution Services
3320 493 8167 381 Deutsche Telekom AG
3292 477 2082 407 TDC Tele Danmark
12479 474 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
3301 405 1904 354 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 1680 309 155 TVCABLE BOGOTA
8151 1411 2796 346 UniNet S.A. de C.V.
28573 1368 1013 70 NET Servicos de Comunicao S.A
7303 1162 681 173 Telecom Argentina Stet-France
14420 736 58 88 CORPORACION NACIONAL DE TELEC
6503 581 450 69 AVANTEL, S.A.
22047 580 322 17 VTR PUNTO NET S.A.
27947 571 55 80 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 517 85 92 Servicios Alestra S.A de C.V
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 713 445 11 TEDATA
15475 450 74 8 Nile Online
36992 291 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
24835 190 80 8 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 3561 3817 226 bellsouth.net, inc.
23456 3278 773 1777 32-bit ASN transition
4766 2503 11048 956 Korea Telecom (KIX)
17974 1993 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
10620 1680 309 155 TVCABLE BOGOTA
4323 1624 1082 391 Time Warner Telecom
7545 1600 303 86 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 1993 1960 PT TELEKOMUNIKASI INDONESIA
1785 1826 1703 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
4766 2503 1547 Korea Telecom (KIX)
10620 1680 1525 TVCABLE BOGOTA
7545 1600 1514 TPG Internet Pty Ltd
7029 1706 1512 Windstream Communications Inc
23456 3278 1501 32-bit ASN transition
7552 1393 1386 Vietel Corporation
4755 1541 1366 TATA Communications formerly
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 /12:235
/13:464 /14:801 /15:1419 /16:11981 /17:5994 /18:10024
/19:19829 /20:27121 /21:27129 /22:36664 /23:34918 /24:194304
/25:1113 /26:1320 /27:757 /28:170 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3561 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1575 1680 TVCABLE BOGOTA
23456 1565 3278 32-bit ASN transition
7029 1403 1706 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1826 PaeTec Communications, Inc.
8402 962 1015 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:382 2:303 4:15 5:1 6:3 8:352
12:1955 13:1 14:538 15:13 16:3 17:7
20:9 23:35 24:1676 27:938 31:547 32:64
33:4 34:2 36:4 38:743 40:108 41:2590
42:48 44:3 46:991 47:3 49:258 50:425
52:13 54:2 55:4 56:2 57:36 58:878
59:493 60:376 61:1179 62:1091 63:1941 64:4040
65:2306 66:3968 67:1955 68:1117 69:3189 70:815
71:377 72:1856 74:2455 75:349 76:341 77:870
78:806 79:479 80:1126 81:837 82:506 83:519
84:623 85:1085 86:410 87:874 88:351 89:1593
90:267 91:4113 92:532 93:1299 94:1324 95:917
96:437 97:276 98:925 99:37 101:210 103:319
106:70 107:52 108:77 109:1025 110:668 111:790
112:324 113:447 114:568 115:696 116:881 117:701
118:891 119:1209 120:334 121:682 122:1609 123:1002
124:1342 125:1393 128:244 129:179 130:165 131:583
132:124 133:21 134:215 135:54 136:212 137:139
138:289 139:118 140:494 141:287 142:387 143:409
144:488 145:58 146:471 147:215 148:638 149:259
150:153 151:191 152:446 153:177 154:6 155:395
156:205 157:359 158:146 159:462 160:324 161:207
162:340 163:177 164:507 165:372 166:535 167:432
168:750 169:146 170:861 171:83 172:1 173:1644
174:595 175:400 176:207 177:278 178:1013 180:1086
181:30 182:626 183:221 184:366 185:1 186:1459
187:667 188:944 189:872 190:5173 192:5909 193:5013
194:3531 195:3061 196:1251 197:175 198:3597 199:4124
200:5508 201:1637 202:8561 203:8503 204:4253 205:2354
206:2674 207:2825 208:4034 209:3458 210:2709 211:1467
212:2088 213:1775 214:780 215:76 216:4881 217:1608
218:559 219:340 220:1229 221:513 222:342 223:263
End of report
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