Routing Table Report 04:00 +10GMT Fri 23 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 386967
Prefixes after maximum aggregation: 168129
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189520
Total ASes present in the Internet Routing Table: 39667
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 32553
Origin ASes announcing only one prefix: 15520
Transit ASes present in the Internet Routing Table: 5341
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1964
Unregistered ASNs in the Routing Table: 1019
Number of 32-bit ASNs allocated by the RIRs: 2116
Number of 32-bit ASNs visible in the Routing Table: 1773
Prefixes from 32-bit ASNs in the Routing Table: 4239
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2503404080
Equivalent to 149 /8s, 54 /16s and 234 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 163889
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95690
Total APNIC prefixes after maximum aggregation: 31357
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 92052
Unique aggregates announced from the APNIC address blocks: 38697
APNIC Region origin ASes present in the Internet Routing Table: 4619
APNIC Prefixes per ASN: 19.93
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 731
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 124
Number of APNIC addresses announced to Internet: 632064896
Equivalent to 37 /8s, 172 /16s and 139 /24s
Percentage of available APNIC address space announced: 80.2
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: 146627
Total ARIN prefixes after maximum aggregation: 74889
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118792
Unique aggregates announced from the ARIN address blocks: 48820
ARIN Region origin ASes present in the Internet Routing Table: 14814
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1567
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: 14
Number of ARIN addresses announced to Internet: 804575168
Equivalent to 47 /8s, 244 /16s and 215 /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: 94827
Total RIPE prefixes after maximum aggregation: 51733
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 86922
Unique aggregates announced from the RIPE address blocks: 55195
RIPE Region origin ASes present in the Internet Routing Table: 16216
RIPE Prefixes per ASN: 5.36
RIPE Region origin ASes announcing only one prefix: 7991
RIPE Region transit ASes present in the Internet Routing Table: 2577
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: 1232
Number of RIPE addresses announced to Internet: 494767816
Equivalent to 29 /8s, 125 /16s and 142 /24s
Percentage of available RIPE address space announced: 79.7
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: 36877
Total LACNIC prefixes after maximum aggregation: 8003
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36382
Unique aggregates announced from the LACNIC address blocks: 18919
LACNIC Region origin ASes present in the Internet Routing Table: 1560
LACNIC Prefixes per ASN: 23.32
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 286
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: 399
Number of LACNIC addresses announced to Internet: 95025800
Equivalent to 5 /8s, 169 /16s and 250 /24s
Percentage of available LACNIC address space announced: 62.9
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: 8538
Total AfriNIC prefixes after maximum aggregation: 2070
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6590
Unique aggregates announced from the AfriNIC address blocks: 2090
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.10
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.5
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: 30873344
Equivalent to 1 /8s, 215 /16s and 23 /24s
Percentage of available AfriNIC address space announced: 46.0
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 2487 11102 967 Korea Telecom (KIX)
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
4755 1516 385 157 TATA Communications formerly
7552 1420 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
4808 1076 2036 307 CNCGROUP IP network: China169
24560 1009 385 167 Bharti Airtel Ltd., Telemedia
18101 974 131 157 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 3473 3814 219 bellsouth.net, inc.
7029 2917 1017 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1860 680 122 PaeTec Communications, Inc.
4323 1621 1065 385 Time Warner Telecom
20115 1612 1549 622 Charter Communications
22773 1515 2909 107 Cox Communications, Inc.
30036 1466 260 686 Mediacom Communications Corp
19262 1389 4683 401 Verizon Global Networks
7018 1302 7012 854 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 1624 480 15 Corbina telecom
15557 1092 2161 64 LDCOM NETWORKS
2118 671 99 14 EUnet/RELCOM Autonomous Syste
6830 648 1928 413 UPC Distribution Services
34984 627 132 198 BILISIM TELEKOM
20940 553 179 440 Akamai Technologies European
12479 550 636 53 Uni2 Autonomous System
3320 532 8162 398 Deutsche Telekom AG
3292 480 2106 407 TDC Tele Danmark
8866 464 134 27 Bulgarian Telecommunication C
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 1719 318 157 TVCABLE BOGOTA
28573 1574 1064 75 NET Servicos de Comunicao S.A
8151 1453 2981 353 UniNet S.A. de C.V.
7303 1249 752 174 Telecom Argentina Stet-France
27947 632 73 94 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 89 Empresa Nacional de Telecomun
6503 539 434 67 AVANTEL, S.A.
11172 530 102 97 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
8452 1036 958 13 TEDATA
24863 790 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 160 664 82 MTN Network Solutions
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 3473 3814 219 bellsouth.net, inc.
7029 2917 1017 200 Windstream Communications Inc
4766 2487 11102 967 Korea Telecom (KIX)
18566 2093 383 177 Covad Communications
1785 1860 680 122 PaeTec Communications, Inc.
10620 1719 318 157 TVCABLE BOGOTA
17974 1716 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
8402 1624 480 15 Corbina telecom
4323 1621 1065 385 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2917 2717 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1860 1738 PaeTec Communications, Inc.
17974 1716 1678 PT TELEKOMUNIKASI INDONESIA
8402 1624 1609 Corbina telecom
10620 1719 1562 TVCABLE BOGOTA
7545 1629 1543 TPG Internet Pty Ltd
4766 2487 1520 Korea Telecom (KIX)
28573 1574 1499 NET Servicos de Comunicao S.A
7552 1420 1413 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54325 UNALLOCATED 8.12.54.0/24 3356 Level 3 Communicatio
54325 UNALLOCATED 8.12.57.0/24 3356 Level 3 Communicatio
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,
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.19.8.0/21 49964 VERIXI
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
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.129.0.0/19 3901 Higher Technology Services, I
66.175.222.0/23 30058 FDC Servers.net, LLC
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 /12:237
/13:465 /14:814 /15:1447 /16:12069 /17:6127 /18:10180
/19:20131 /20:27970 /21:28207 /22:38250 /23:35885 /24:201438
/25:1182 /26:1402 /27:771 /28:166 /29:55 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2545 2917 Windstream Communications Inc
6389 2118 3473 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1614 1719 TVCABLE BOGOTA
8402 1603 1624 Corbina telecom
30036 1426 1466 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1063 1860 PaeTec Communications, Inc.
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:469 2:438 4:15 5:1 6:3 8:359
12:1944 13:1 14:577 15:11 16:3 17:7
20:9 23:78 24:1714 27:1128 31:734 32:67
33:2 34:2 36:4 37:6 38:773 40:114
41:3009 42:78 43:1 44:3 46:1141 47:3
49:279 50:471 52:13 55:6 56:2 57:42
58:924 59:487 60:342 61:1172 62:916 63:1963
64:4125 65:2304 66:4372 67:1989 68:1167 69:3132
70:924 71:408 72:1785 74:2639 75:431 76:320
77:944 78:873 79:468 80:1181 81:847 82:522
83:529 84:577 85:1164 86:743 87:900 88:353
89:1582 90:249 91:4362 92:539 93:1523 94:1342
95:1053 96:398 97:284 98:786 99:38 100:2
101:130 103:577 106:11 107:118 108:100 109:1414
110:675 111:824 112:423 113:497 114:591 115:707
116:877 117:717 118:889 119:1233 120:359 121:672
122:1568 123:1029 124:1329 125:1347 128:555 129:179
130:185 131:583 132:161 133:21 134:224 135:54
136:213 137:151 138:285 139:126 140:490 141:256
142:382 143:386 144:501 145:67 146:476 147:222
148:632 149:269 150:164 151:192 152:445 153:170
154:7 155:385 156:210 157:365 158:154 159:504
160:354 161:221 162:333 163:186 164:522 165:392
166:542 167:455 168:816 169:146 170:829 171:95
172:4 173:1798 174:602 175:411 176:324 177:420
178:1145 180:1208 181:39 182:674 183:263 184:407
185:1 186:1415 187:778 188:978 189:1172 190:5318
192:5977 193:5446 194:3785 195:3178 196:1287 197:173
198:3619 199:4234 200:5528 201:1688 202:8477 203:8528
204:4342 205:2417 206:2665 207:2832 208:4011 209:3572
210:2747 211:1474 212:1951 213:1791 214:804 215:93
216:4923 217:1501 218:571 219:336 220:1256 221:527
222:323 223:267
End of report
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