Routing Table Report 04:00 +10GMT Thu 02 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 395288
Prefixes after maximum aggregation: 169306
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191721
Total ASes present in the Internet Routing Table: 39969
Prefixes per ASN: 9.89
Origin-only ASes present in the Internet Routing Table: 32678
Origin ASes announcing only one prefix: 15517
Transit ASes present in the Internet Routing Table: 5388
Transit-only ASes present in the Internet Routing Table: 140
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: 315
Unregistered ASNs in the Routing Table: 123
Number of 32-bit ASNs allocated by the RIRs: 2248
Number of 32-bit ASNs visible in the Routing Table: 1903
Prefixes from 32-bit ASNs in the Routing Table: 4598
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2511732048
Equivalent to 149 /8s, 181 /16s and 253 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 167738
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97590
Total APNIC prefixes after maximum aggregation: 31520
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 93885
Unique aggregates announced from the APNIC address blocks: 39016
APNIC Region origin ASes present in the Internet Routing Table: 4646
APNIC Prefixes per ASN: 20.21
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 138
Number of APNIC addresses announced to Internet: 635493984
Equivalent to 37 /8s, 224 /16s and 222 /24s
Percentage of available APNIC address space announced: 80.6
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: 148124
Total ARIN prefixes after maximum aggregation: 75342
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120100
Unique aggregates announced from the ARIN address blocks: 49286
ARIN Region origin ASes present in the Internet Routing Table: 14874
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5680
ARIN Region transit ASes present in the Internet Routing Table: 1583
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804335040
Equivalent to 47 /8s, 241 /16s and 45 /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: 97730
Total RIPE prefixes after maximum aggregation: 52241
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89656
Unique aggregates announced from the RIPE address blocks: 55897
RIPE Region origin ASes present in the Internet Routing Table: 16284
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2586
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: 1318
Number of RIPE addresses announced to Internet: 498523144
Equivalent to 29 /8s, 182 /16s and 220 /24s
Percentage of available RIPE address space announced: 80.3
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: 38102
Total LACNIC prefixes after maximum aggregation: 8037
LACNIC Deaggregation factor: 4.74
Prefixes being announced from the LACNIC address blocks: 37696
Unique aggregates announced from the LACNIC address blocks: 19381
LACNIC Region origin ASes present in the Internet Routing Table: 1569
LACNIC Prefixes per ASN: 24.03
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 292
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 429
Number of LACNIC addresses announced to Internet: 95896968
Equivalent to 5 /8s, 183 /16s and 69 /24s
Percentage of available LACNIC address space announced: 63.5
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: 8982
Total AfriNIC prefixes after maximum aggregation: 2093
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 6993
Unique aggregates announced from the AfriNIC address blocks: 2141
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.71
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 4.7
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: 30793984
Equivalent to 1 /8s, 213 /16s and 225 /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 2475 11102 982 Korea Telecom (KIX)
17974 1721 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 86 TPG Internet Pty Ltd
4755 1530 385 156 TATA Communications formerly
7552 1419 1064 7 Vietel Corporation
9829 1167 989 28 BSNL National Internet Backbo
9583 1118 81 483 Sify Limited
4808 1102 2051 313 CNCGROUP IP network: China169
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
18101 950 131 156 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 3445 3807 201 bellsouth.net, inc.
7029 3224 1017 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 680 125 PaeTec Communications, Inc.
20115 1625 1552 626 Charter Communications
4323 1609 1062 384 Time Warner Telecom
22773 1497 2910 109 Cox Communications, Inc.
30036 1451 254 740 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1306 7009 851 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 1762 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 LDCOM NETWORKS
6830 642 1927 412 UPC Distribution Services
34984 641 188 172 BILISIM TELEKOM
20940 601 195 466 Akamai Technologies European
12479 555 641 56 Uni2 Autonomous System
3320 531 8162 397 Deutsche Telekom AG
8551 530 360 81 Bezeq International
31148 530 37 9 FreeNet ISP
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 1727 323 170 TVCABLE BOGOTA
28573 1632 1085 69 NET Servicos de Comunicao S.A
8151 1336 2995 344 UniNet S.A. de C.V.
7303 1258 756 180 Telecom Argentina Stet-France
26615 886 632 33 Tim Brasil S.A.
11172 695 95 75 Servicios Alestra S.A de C.V
27947 650 73 99 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
3816 550 237 91 Empresa Nacional de Telecomun
7738 550 1050 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
8452 1242 958 13 TEDATA
24863 834 155 43 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 237 13 13 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 163 664 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 3445 3807 201 bellsouth.net, inc.
7029 3224 1017 199 Windstream Communications Inc
4766 2475 11102 982 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1865 680 125 PaeTec Communications, Inc.
8402 1762 480 15 Corbina telecom
10620 1727 323 170 TVCABLE BOGOTA
17974 1721 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 86 TPG Internet Pty Ltd
28573 1632 1085 69 NET Servicos de Comunicao S.A
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 3224 3025 Windstream Communications Inc
18566 2093 1916 Covad Communications
8402 1762 1747 Corbina telecom
1785 1865 1740 PaeTec Communications, Inc.
17974 1721 1686 PT TELEKOMUNIKASI INDONESIA
28573 1632 1563 NET Servicos de Comunicao S.A
10620 1727 1557 TVCABLE BOGOTA
7545 1642 1556 TPG Internet Pty Ltd
4766 2475 1493 Korea Telecom (KIX)
7552 1419 1412 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
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
41.222.79.0/24 36938 >>UNKNOWN<<
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 /11:80 /12:231
/13:458 /14:818 /15:1466 /16:12152 /17:6167 /18:10296
/19:20343 /20:28138 /21:29154 /22:39570 /23:36761 /24:206061
/25:1188 /26:1428 /27:785 /28:43 /29:59 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2854 3224 Windstream Communications Inc
6389 2115 3445 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1741 1762 Corbina telecom
10620 1622 1727 TVCABLE BOGOTA
30036 1410 1451 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1063 1865 PaeTec Communications, Inc.
15557 1046 1096 LDCOM NETWORKS
8452 1045 1242 TEDATA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:497 2:481 4:14 5:1 6:3 8:379
12:1955 13:1 14:593 15:11 16:3 17:6
20:9 23:124 24:1726 27:1187 31:828 32:65
33:2 34:2 36:8 37:125 38:792 40:114
41:3175 42:92 43:1 44:3 46:1276 47:3
49:321 50:518 52:13 54:2 55:7 56:3
57:38 58:955 59:491 60:345 61:1187 62:926
63:1995 64:4148 65:2284 66:4426 67:2042 68:1167
69:3156 70:916 71:432 72:1796 74:2647 75:452
76:320 77:968 78:925 79:496 80:1212 81:875
82:562 83:532 84:584 85:1161 86:745 87:911
88:320 89:1540 90:227 91:4473 92:539 93:1555
94:1325 95:1156 96:414 97:309 98:799 99:38
100:20 101:129 103:711 106:4 107:140 108:134
109:1466 110:688 111:838 112:425 113:527 114:604
115:757 116:864 117:721 118:900 119:1247 120:357
121:682 122:1626 123:1062 124:1338 125:1362 128:540
129:189 130:214 131:589 132:162 133:21 134:232
135:59 136:214 137:152 138:285 139:145 140:489
141:259 142:378 143:397 144:506 145:70 146:486
147:228 148:705 149:272 150:168 151:194 152:446
153:170 154:7 155:399 156:211 157:364 158:155
159:510 160:329 161:243 162:341 163:189 164:532
165:393 166:564 167:456 168:763 169:147 170:834
171:116 172:4 173:1779 174:581 175:414 176:468
177:468 178:1240 180:1173 181:45 182:702 183:277
184:430 185:1 186:2021 187:835 188:974 189:1164
190:5425 192:5978 193:5485 194:4219 195:3393 196:1290
197:179 198:3608 199:4358 200:5709 201:1722 202:8413
203:8595 204:4349 205:2441 206:2742 207:2818 208:4065
209:3552 210:2740 211:1476 212:1941 213:1834 214:852
215:92 216:4983 217:1471 218:555 219:340 220:1254
221:558 222:321 223:273
End of report
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