Routing Table Report 04:00 +10GMT Wed 05 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 375556
Prefixes after maximum aggregation: 168822
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185138
Total ASes present in the Internet Routing Table: 38947
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 32268
Origin ASes announcing only one prefix: 15480
Transit ASes present in the Internet Routing Table: 5218
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1565
Unregistered ASNs in the Routing Table: 826
Number of 32-bit ASNs allocated by the RIRs: 1811
Number of 32-bit ASNs visible in the Routing Table: 1461
Prefixes from 32-bit ASNs in the Routing Table: 3362
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 96
Number of addresses announced to Internet: 2481556736
Equivalent to 147 /8s, 233 /16s and 141 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 157575
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94152
Total APNIC prefixes after maximum aggregation: 30836
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90628
Unique aggregates announced from the APNIC address blocks: 37889
APNIC Region origin ASes present in the Internet Routing Table: 4571
APNIC Prefixes per ASN: 19.83
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 90
Number of APNIC addresses announced to Internet: 628290912
Equivalent to 37 /8s, 114 /16s and 245 /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: 144076
Total ARIN prefixes after maximum aggregation: 73999
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116223
Unique aggregates announced from the ARIN address blocks: 47904
ARIN Region origin ASes present in the Internet Routing Table: 14708
ARIN Prefixes per ASN: 7.90
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: 804499200
Equivalent to 47 /8s, 243 /16s and 175 /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: 90241
Total RIPE prefixes after maximum aggregation: 50490
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82892
Unique aggregates announced from the RIPE address blocks: 54182
RIPE Region origin ASes present in the Internet Routing Table: 16010
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7954
RIPE Region transit ASes present in the Internet Routing Table: 2503
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1034
Number of RIPE addresses announced to Internet: 490328192
Equivalent to 29 /8s, 57 /16s and 208 /24s
Percentage of available RIPE address space announced: 79.0
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: 34976
Total LACNIC prefixes after maximum aggregation: 7783
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34315
Unique aggregates announced from the LACNIC address blocks: 18072
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.47
LACNIC Region origin ASes announcing only one prefix: 450
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: 321
Number of LACNIC addresses announced to Internet: 89650560
Equivalent to 5 /8s, 87 /16s and 245 /24s
Percentage of available LACNIC address space announced: 59.4
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: 8577
Total AfriNIC prefixes after maximum aggregation: 2003
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6659
Unique aggregates announced from the AfriNIC address blocks: 1944
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.67
AfriNIC Region origin ASes announcing only one prefix: 155
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: 27739136
Equivalent to 1 /8s, 167 /16s and 68 /24s
Percentage of available AfriNIC address space announced: 41.3
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 2493 11047 957 Korea Telecom (KIX)
17974 1974 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1607 303 86 TPG Internet Pty Ltd
4755 1542 638 175 TATA Communications formerly
7552 1393 1064 7 Vietel Corporation
24560 1177 345 208 Bharti Airtel Ltd., Telemedia
9829 1165 989 28 BSNL National Internet Backbo
9583 1093 80 505 Sify Limited
4808 1074 2096 303 CNCGROUP IP network: China169
18101 952 165 143 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 3558 3817 225 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1827 680 121 PaeTec Communications, Inc.
7029 1827 1008 195 Windstream Communications Inc
4323 1628 1082 391 Time Warner Telecom
20115 1592 1541 635 Charter Communications
22773 1458 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1377 249 677 Mediacom Communications Corp
7018 1337 7051 874 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 1467 352 13 Corbina telecom
34984 574 108 178 BILISIM TELEKOM
6830 557 1873 333 UPC Distribution Services
20940 540 182 415 Akamai Technologies European
3320 502 8169 384 Deutsche Telekom AG
3292 481 2082 408 TDC Tele Danmark
12479 471 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
8551 404 354 44 Bezeq International
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 1681 310 155 TVCABLE BOGOTA
8151 1412 2823 343 UniNet S.A. de C.V.
28573 1365 1013 70 NET Servicos de Comunicao S.A
7303 1164 683 175 Telecom Argentina Stet-France
14420 756 59 87 CORPORACION NACIONAL DE TELEC
22047 579 322 17 VTR PUNTO NET S.A.
6503 576 450 69 AVANTEL, S.A.
27947 573 71 83 Telconet S.A
3816 533 231 98 Empresa Nacional de Telecomun
11172 522 85 94 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 814 146 36 LINKdotNET AS number
8452 727 445 11 TEDATA
15475 445 74 8 Nile Online
36992 294 415 19 Etisalat MISR
3741 277 939 231 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 229 13 7 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
29571 192 17 11 Ci Telecom Autonomous system
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 3558 3817 225 bellsouth.net, inc.
4766 2493 11047 957 Korea Telecom (KIX)
17974 1974 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
1785 1827 680 121 PaeTec Communications, Inc.
7029 1827 1008 195 Windstream Communications Inc
10620 1681 310 155 TVCABLE BOGOTA
4323 1628 1082 391 Time Warner Telecom
7545 1607 303 86 TPG Internet Pty Ltd
20115 1592 1541 635 Charter Communications
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 1974 1941 PT TELEKOMUNIKASI INDONESIA
1785 1827 1706 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
7029 1827 1632 Windstream Communications Inc
4766 2493 1536 Korea Telecom (KIX)
10620 1681 1526 TVCABLE BOGOTA
7545 1607 1521 TPG Internet Pty Ltd
8402 1467 1454 Corbina telecom
7552 1393 1386 Vietel Corporation
4755 1542 1367 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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
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 /12:235
/13:464 /14:804 /15:1422 /16:11989 /17:5988 /18:10031
/19:19835 /20:27139 /21:27169 /22:36845 /23:34883 /24:195206
/25:1128 /26:1346 /27:748 /28:176 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2194 3558 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1576 1681 TVCABLE BOGOTA
7029 1523 1827 Windstream Communications Inc
8402 1444 1467 Corbina telecom
30036 1339 1377 Mediacom Communications Corp
11492 1115 1153 Cable One
1785 1054 1827 PaeTec Communications, Inc.
7011 1052 1173 Citizens Utilities
22773 947 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:382 2:485 4:15 5:1 6:3 8:355
12:1953 14:534 15:13 16:3 17:7 20:10
23:39 24:1688 27:963 31:573 32:65 33:4
34:2 36:4 38:748 40:108 41:2685 42:48
44:3 46:992 47:3 49:263 50:434 52:13
55:5 56:2 57:37 58:881 59:491 60:365
61:1177 62:1079 63:1934 64:4040 65:2305 66:3994
67:1952 68:1102 69:3187 70:829 71:377 72:1850
74:2468 75:356 76:341 77:884 78:878 79:478
80:1127 81:837 82:500 83:500 84:621 85:1125
86:405 87:875 88:352 89:1601 90:268 91:4156
92:529 93:1383 94:1316 95:1028 96:441 97:278
98:910 99:37 101:210 103:342 106:7 107:59
108:47 109:1038 110:662 111:792 112:305 113:479
114:566 115:699 116:870 117:663 118:833 119:1220
120:335 121:682 122:1606 123:1019 124:1366 125:1381
128:244 129:179 130:165 131:579 132:112 133:21
134:214 135:54 136:214 137:139 138:288 139:123
140:496 141:292 142:388 143:415 144:490 145:63
146:472 147:215 148:642 149:264 150:153 151:193
152:446 153:178 154:6 155:387 156:207 157:360
158:151 159:466 160:324 161:206 162:336 163:179
164:511 165:366 166:535 167:432 168:744 169:147
170:864 171:85 172:1 173:1651 174:654 175:405
176:269 177:285 178:1052 180:1095 181:37 182:622
183:213 184:387 185:1 186:1507 187:660 188:928
189:873 190:5181 192:5911 193:5024 194:3531 195:3095
196:1247 197:168 198:3623 199:4130 200:5477 201:1644
202:8559 203:8480 204:4261 205:2358 206:2670 207:2823
208:4035 209:3452 210:2693 211:1462 212:2054 213:1793
214:788 215:90 216:4911 217:1610 218:560 219:338
220:1242 221:514 222:342 223:277
End of report
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