Routing Table Report 04:00 +10GMT Wed 18 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 406256
Prefixes after maximum aggregation: 172557
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 197198
Total ASes present in the Internet Routing Table: 40709
Prefixes per ASN: 9.98
Origin-only ASes present in the Internet Routing Table: 33027
Origin ASes announcing only one prefix: 15589
Transit ASes present in the Internet Routing Table: 5461
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 64
Max AS path prepend of ASN ( 9902) 56
Prefixes from unregistered ASNs in the Routing Table: 391
Unregistered ASNs in the Routing Table: 128
Number of 32-bit ASNs allocated by the RIRs: 2584
Number of 32-bit ASNs visible in the Routing Table: 2221
Prefixes from 32-bit ASNs in the Routing Table: 5505
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2536644944
Equivalent to 151 /8s, 50 /16s and 33 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 173194
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 99632
Total APNIC prefixes after maximum aggregation: 32260
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 96087
Unique aggregates announced from the APNIC address blocks: 39594
APNIC Region origin ASes present in the Internet Routing Table: 4677
APNIC Prefixes per ASN: 20.54
APNIC Region origin ASes announcing only one prefix: 1231
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 182
Number of APNIC addresses announced to Internet: 643596896
Equivalent to 38 /8s, 92 /16s and 130 /24s
Percentage of available APNIC address space announced: 81.6
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: 149781
Total ARIN prefixes after maximum aggregation: 76205
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 121037
Unique aggregates announced from the ARIN address blocks: 50291
ARIN Region origin ASes present in the Internet Routing Table: 15037
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5723
ARIN Region transit ASes present in the Internet Routing Table: 1586
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807133888
Equivalent to 48 /8s, 27 /16s and 226 /24s
Percentage of available ARIN address space announced: 64.1
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: 101491
Total RIPE prefixes after maximum aggregation: 53651
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93404
Unique aggregates announced from the RIPE address blocks: 58133
RIPE Region origin ASes present in the Internet Routing Table: 16486
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 8034
RIPE Region transit ASes present in the Internet Routing Table: 2640
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1493
Number of RIPE addresses announced to Internet: 509304968
Equivalent to 30 /8s, 91 /16s and 96 /24s
Percentage of available RIPE address space announced: 82.0
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: 40644
Total LACNIC prefixes after maximum aggregation: 8249
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 40457
Unique aggregates announced from the LACNIC address blocks: 20145
LACNIC Region origin ASes present in the Internet Routing Table: 1584
LACNIC Prefixes per ASN: 25.54
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 296
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: 524
Number of LACNIC addresses announced to Internet: 99364360
Equivalent to 5 /8s, 236 /16s and 46 /24s
Percentage of available LACNIC address space announced: 65.8
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: 9028
Total AfriNIC prefixes after maximum aggregation: 2123
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 7071
Unique aggregates announced from the AfriNIC address blocks: 2178
AfriNIC Region origin ASes present in the Internet Routing Table: 528
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 5
Number of AfriNIC addresses announced to Internet: 31668480
Equivalent to 1 /8s, 227 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 47.2
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 2479 11108 1015 Korea Telecom (KIX)
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1670 301 86 TPG Internet Pty Ltd
4755 1591 388 166 TATA Communications formerly
9583 1250 96 541 Sify Limited
9829 1234 1045 31 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
4808 1091 2047 315 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd., Telemedia
18101 946 131 159 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 3427 3807 195 bellsouth.net, inc.
7029 3385 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1901 680 130 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1600 1044 380 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1430 261 750 Mediacom Communications Corp
7018 1258 9774 831 AT&T WorldNet Services
11492 1186 216 364 Cable One
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 1807 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 678 188 175 BILISIM TELEKOM
6830 657 2215 426 UPC Distribution Services
20940 646 206 499 Akamai Technologies European
12479 643 664 64 Uni2 Autonomous System
8551 572 360 81 Bezeq International
3320 533 8442 399 Deutsche Telekom AG
2578 501 33 7 Demos, Moscow, Russia
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 1809 327 176 TVCABLE BOGOTA
28573 1783 1107 59 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1486 3020 350 UniNet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Tim Brasil S.A.
27947 688 74 98 Telconet S.A
11172 636 91 72 Servicios Alestra S.A de C.V
22047 582 326 15 VTR PUNTO NET S.A.
3816 572 242 100 Empresa Nacional de Telecomun
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 1303 958 13 TEDATA
24863 848 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
16637 171 666 83 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
29571 159 15 15 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 3427 3807 195 bellsouth.net, inc.
7029 3385 985 157 Windstream Communications Inc
4766 2479 11108 1015 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1901 680 130 PaeTec Communications, Inc.
10620 1809 327 176 TVCABLE BOGOTA
8402 1807 544 16 Corbina telecom
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1783 1107 59 NET Servicos de Comunicao S.A
7545 1670 301 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
7029 3385 3228 Windstream Communications Inc
18566 2091 1912 Covad Communications
8402 1807 1791 Corbina telecom
1785 1901 1771 PaeTec Communications, Inc.
17974 1799 1736 PT TELEKOMUNIKASI INDONESIA
28573 1783 1724 NET Servicos de Comunicao S.A
10620 1809 1633 TVCABLE BOGOTA
7545 1670 1584 TPG Internet Pty Ltd
6503 1533 1468 AVANTEL, S.A.
22773 1576 1465 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
27.112.114.0/24 23884 Proimage Engineering and Comm
37.235.96.0/20 39392 SuperNetwork s.r.o.
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 /10:28 /11:81 /12:235
/13:459 /14:833 /15:1482 /16:12184 /17:6273 /18:10520
/19:20634 /20:28901 /21:29904 /22:40530 /23:37849 /24:212657
/25:1194 /26:1422 /27:782 /28:162 /29:59 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3043 3385 Windstream Communications Inc
6389 2145 3427 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1784 1807 Corbina telecom
10620 1695 1809 TVCABLE BOGOTA
30036 1376 1430 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1111 1303 TEDATA
1785 1069 1901 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:534 2:754 4:14 6:3 8:403 12:2001
13:1 14:601 15:12 16:3 17:7 20:22
23:163 24:1769 27:1272 31:978 32:57 33:2
34:2 36:8 37:353 38:795 40:120 41:3160
42:134 44:3 46:1491 47:3 49:382 50:536
52:13 54:7 55:8 56:3 57:31 58:957
59:518 60:281 61:1266 62:973 63:1991 64:4183
65:2253 66:4490 67:2029 68:1151 69:3156 70:907
71:488 72:1818 74:2596 75:495 76:319 77:940
78:1006 79:485 80:1216 81:901 82:662 83:550
84:490 85:1204 86:408 87:928 88:355 89:1631
90:292 91:4723 92:523 93:1409 94:1474 95:1151
96:360 97:319 98:911 99:37 100:7 101:175
103:991 106:104 107:187 108:229 109:1288 110:756
111:926 112:455 113:595 114:624 115:877 116:902
117:717 118:906 119:1232 120:348 121:794 122:1671
123:1090 124:1370 125:1261 128:550 129:194 130:253
131:593 132:173 133:21 134:243 135:62 136:212
137:177 138:352 139:148 140:492 141:244 142:386
143:408 144:516 145:69 146:491 147:292 148:764
149:301 150:159 151:176 152:464 153:172 154:7
155:429 156:215 157:380 158:176 159:522 160:337
161:259 162:351 163:190 164:571 165:394 166:571
167:463 168:818 169:127 170:860 171:127 172:2
173:1748 174:587 175:428 176:487 177:657 178:1324
180:1180 181:73 182:804 183:286 184:451 185:1
186:2182 187:1033 188:1188 189:1787 190:5502 192:6000
193:5543 194:4638 195:3580 196:1284 197:128 198:3647
199:4505 200:5800 201:1930 202:8522 203:8607 204:4330
205:2490 206:2749 207:2780 208:4053 209:3585 210:2756
211:1478 212:2018 213:1899 214:840 215:104 216:5099
217:1539 218:543 219:344 220:1229 221:555 222:323
223:334
End of report
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