Routing Table Report 04:00 +10GMT Wed 04 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 388396
Prefixes after maximum aggregation: 168440
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 190299
Total ASes present in the Internet Routing Table: 39737
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 32581
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5347
Transit-only ASes present in the Internet Routing Table: 138
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: 2058
Unregistered ASNs in the Routing Table: 1039
Number of 32-bit ASNs allocated by the RIRs: 2153
Number of 32-bit ASNs visible in the Routing Table: 1809
Prefixes from 32-bit ASNs in the Routing Table: 4300
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2505498416
Equivalent to 149 /8s, 86 /16s and 223 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
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: 164584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96035
Total APNIC prefixes after maximum aggregation: 31391
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 92418
Unique aggregates announced from the APNIC address blocks: 38771
APNIC Region origin ASes present in the Internet Routing Table: 4625
APNIC Prefixes per ASN: 19.98
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 725
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: 125
Number of APNIC addresses announced to Internet: 632792192
Equivalent to 37 /8s, 183 /16s and 164 /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: 146827
Total ARIN prefixes after maximum aggregation: 74978
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118918
Unique aggregates announced from the ARIN address blocks: 48933
ARIN Region origin ASes present in the Internet Routing Table: 14830
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5684
ARIN Region transit ASes present in the Internet Routing Table: 1571
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: 804670656
Equivalent to 47 /8s, 246 /16s and 76 /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: 95403
Total RIPE prefixes after maximum aggregation: 51883
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87402
Unique aggregates announced from the RIPE address blocks: 55511
RIPE Region origin ASes present in the Internet Routing Table: 16228
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2580
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: 1261
Number of RIPE addresses announced to Internet: 495588808
Equivalent to 29 /8s, 138 /16s and 21 /24s
Percentage of available RIPE address space announced: 79.8
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: 37126
Total LACNIC prefixes after maximum aggregation: 8046
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36648
Unique aggregates announced from the LACNIC address blocks: 19064
LACNIC Region origin ASes present in the Internet Routing Table: 1561
LACNIC Prefixes per ASN: 23.48
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 284
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 405
Number of LACNIC addresses announced to Internet: 95139720
Equivalent to 5 /8s, 171 /16s and 183 /24s
Percentage of available LACNIC address space announced: 63.0
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: 8543
Total AfriNIC prefixes after maximum aggregation: 2069
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6582
Unique aggregates announced from the AfriNIC address blocks: 2086
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 13.06
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 113
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: 30798592
Equivalent to 1 /8s, 213 /16s and 243 /24s
Percentage of available AfriNIC address space announced: 45.9
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 2463 11099 965 Korea Telecom (KIX)
17974 1719 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
4755 1516 385 157 TATA Communications formerly
7552 1412 1064 7 Vietel Corporation
9829 1169 989 28 BSNL National Internet Backbo
9583 1110 81 497 Sify Limited
4808 1076 2035 309 CNCGROUP IP network: China169
24560 981 380 165 Bharti Airtel Ltd., Telemedia
18101 974 131 156 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 215 bellsouth.net, inc.
7029 2916 1017 200 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1862 680 122 PaeTec Communications, Inc.
4323 1623 1065 385 Time Warner Telecom
20115 1616 1551 619 Charter Communications
22773 1518 2909 107 Cox Communications, Inc.
30036 1477 263 691 Mediacom Communications Corp
19262 1389 4683 401 Verizon Global Networks
7018 1301 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 1545 480 15 Corbina telecom
15557 1092 2161 64 LDCOM NETWORKS
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 643 1928 414 UPC Distribution Services
34984 636 132 198 BILISIM TELEKOM
12479 552 636 53 Uni2 Autonomous System
20940 547 176 438 Akamai Technologies European
3320 531 8162 397 Deutsche Telekom AG
3292 480 2106 407 TDC Tele Danmark
8866 465 134 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 1721 319 159 TVCABLE BOGOTA
28573 1570 1064 76 NET Servicos de Comunicao S.A
8151 1455 2981 352 UniNet S.A. de C.V.
7303 1253 755 177 Telecom Argentina Stet-France
27947 634 73 95 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 548 237 91 Empresa Nacional de Telecomun
6503 538 434 67 AVANTEL, S.A.
11172 530 86 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 1039 958 13 TEDATA
24863 794 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 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 189 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 215 bellsouth.net, inc.
7029 2916 1017 200 Windstream Communications Inc
4766 2463 11099 965 Korea Telecom (KIX)
18566 2094 383 177 Covad Communications
1785 1862 680 122 PaeTec Communications, Inc.
10620 1721 319 159 TVCABLE BOGOTA
17974 1719 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1629 303 86 TPG Internet Pty Ltd
4323 1623 1065 385 Time Warner Telecom
20115 1616 1551 619 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
7029 2916 2716 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1862 1740 PaeTec Communications, Inc.
17974 1719 1682 PT TELEKOMUNIKASI INDONESIA
10620 1721 1562 TVCABLE BOGOTA
7545 1629 1543 TPG Internet Pty Ltd
8402 1545 1530 Corbina telecom
4766 2463 1498 Korea Telecom (KIX)
28573 1570 1494 NET Servicos de Comunicao S.A
22773 1518 1411 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
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
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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.28.152.0/21 23456 32-bit ASN transition
37.28.192.0/18 12353 Vodafone Telecel, Comunicacoe
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 /15:1449 /16:12090 /17:6130 /18:10189
/19:20173 /20:27938 /21:28333 /22:38649 /23:35902 /24:202277
/25:1177 /26:1402 /27:779 /28:167 /29:54 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2544 2916 Windstream Communications Inc
6389 2118 3473 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1616 1721 TVCABLE BOGOTA
8402 1524 1545 Corbina telecom
30036 1436 1477 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1064 1862 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)
----------------------------------------------
1:490 2:414 4:15 5:1 6:3 8:367
12:1946 13:1 14:579 15:11 16:3 17:7
20:9 23:83 24:1713 27:1166 31:787 32:67
33:2 34:2 36:4 37:10 38:790 40:114
41:2995 42:85 43:1 44:3 46:1160 47:3
49:296 50:472 52:13 55:5 56:2 57:41
58:942 59:488 60:343 61:1175 62:934 63:1970
64:4125 65:2304 66:4371 67:1998 68:1167 69:3139
70:924 71:410 72:1784 74:2645 75:431 76:320
77:942 78:871 79:501 80:1190 81:849 82:531
83:530 84:577 85:1170 86:749 87:912 88:349
89:1592 90:260 91:4398 92:534 93:1519 94:1341
95:1046 96:397 97:288 98:771 99:38 100:18
101:126 103:599 106:10 107:120 108:100 109:1422
110:682 111:837 112:434 113:497 114:595 115:727
116:855 117:722 118:895 119:1227 120:365 121:672
122:1621 123:1032 124:1336 125:1350 128:530 129:189
130:188 131:587 132:163 133:21 134:226 135:54
136:213 137:151 138:285 139:126 140:491 141:257
142:381 143:392 144:499 145:67 146:476 147:219
148:632 149:275 150:165 151:192 152:444 153:169
154:7 155:383 156:210 157:364 158:155 159:506
160:345 161:221 162:335 163:188 164:522 165:394
166:546 167:455 168:814 169:146 170:826 171:95
172:4 173:1784 174:592 175:413 176:322 177:437
178:1150 180:1214 181:43 182:679 183:264 184:422
185:1 186:1463 187:832 188:1013 189:1171 190:5350
192:5982 193:5450 194:3782 195:3195 196:1285 197:174
198:3617 199:4243 200:5572 201:1689 202:8504 203:8563
204:4341 205:2424 206:2707 207:2804 208:4013 209:3543
210:2740 211:1475 212:1968 213:1813 214:823 215:93
216:4911 217:1476 218:568 219:338 220:1250 221:562
222:324 223:263
End of report
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