Routing Table Report 04:00 +10GMT Tue 03 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 404098
Prefixes after maximum aggregation: 171739
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195877
Total ASes present in the Internet Routing Table: 40542
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 32958
Origin ASes announcing only one prefix: 15467
Transit ASes present in the Internet Routing Table: 5420
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 573
Unregistered ASNs in the Routing Table: 277
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 2164
Prefixes from 32-bit ASNs in the Routing Table: 5327
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 1295
Number of addresses announced to Internet: 2531871312
Equivalent to 150 /8s, 233 /16s and 74 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171685
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98990
Total APNIC prefixes after maximum aggregation: 32125
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95394
Unique aggregates announced from the APNIC address blocks: 39234
APNIC Region origin ASes present in the Internet Routing Table: 4675
APNIC Prefixes per ASN: 20.41
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 169
Number of APNIC addresses announced to Internet: 642418016
Equivalent to 38 /8s, 74 /16s and 133 /24s
Percentage of available APNIC address space announced: 81.5
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: 149135
Total ARIN prefixes after maximum aggregation: 75831
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120535
Unique aggregates announced from the ARIN address blocks: 49925
ARIN Region origin ASes present in the Internet Routing Table: 14934
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5682
ARIN Region transit ASes present in the Internet Routing Table: 1565
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: 17
Number of ARIN addresses announced to Internet: 805169344
Equivalent to 47 /8s, 253 /16s and 232 /24s
Percentage of available ARIN address space announced: 64.0
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: 100940
Total RIPE prefixes after maximum aggregation: 53227
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92197
Unique aggregates announced from the RIPE address blocks: 57247
RIPE Region origin ASes present in the Internet Routing Table: 16343
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7949
RIPE Region transit ASes present in the Internet Routing Table: 2629
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1465
Number of RIPE addresses announced to Internet: 502261256
Equivalent to 29 /8s, 239 /16s and 230 /24s
Percentage of available RIPE address space announced: 80.9
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: 40403
Total LACNIC prefixes after maximum aggregation: 8171
LACNIC Deaggregation factor: 4.94
Prefixes being announced from the LACNIC address blocks: 39963
Unique aggregates announced from the LACNIC address blocks: 19733
LACNIC Region origin ASes present in the Internet Routing Table: 1567
LACNIC Prefixes per ASN: 25.50
LACNIC Region origin ASes announcing only one prefix: 436
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: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 508
Number of LACNIC addresses announced to Internet: 98647176
Equivalent to 5 /8s, 225 /16s and 60 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8883
Total AfriNIC prefixes after maximum aggregation: 2122
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6937
Unique aggregates announced from the AfriNIC address blocks: 2168
AfriNIC Region origin ASes present in the Internet Routing Table: 526
AfriNIC Prefixes per ASN: 13.19
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: 4.5
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: 31522816
Equivalent to 1 /8s, 225 /16s and 0 /24s
Percentage of available AfriNIC address space announced: 47.0
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 2494 11109 993 Korea Telecom (KIX)
17974 1786 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1659 301 89 TPG Internet Pty Ltd
4755 1575 386 158 TATA Communications formerly
9583 1237 94 541 Sify Limited
9829 1189 1025 29 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
4808 1103 2050 316 CNCGROUP IP network: China169
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
18101 951 131 160 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
7029 3377 990 155 Windstream Communications Inc
6389 3376 3806 196 bellsouth.net, inc.
18566 2092 383 179 Covad Communications
1785 1889 680 129 PaeTec Communications, Inc.
20115 1633 1559 624 Charter Communications
4323 1604 1060 382 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1417 257 747 Mediacom Communications Corp
7018 1278 9774 828 AT&T WorldNet Services
11492 1184 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 1835 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 677 37 9 FreeNet ISP
34984 674 188 174 BILISIM TELEKOM
12479 656 658 57 Uni2 Autonomous System
20940 649 206 499 Akamai Technologies European
6830 641 1943 412 UPC Distribution Services
8551 572 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG
2578 500 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 1797 327 163 TVCABLE BOGOTA
28573 1745 1105 60 NET Servicos de Comunicao S.A
6503 1502 418 65 AVANTEL, S.A.
8151 1484 3018 349 UniNet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 902 700 28 Tim Brasil S.A.
27947 688 74 100 Telconet S.A
11172 636 91 73 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 568 242 100 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 1295 958 13 TEDATA
24863 849 274 35 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
33776 167 12 24 Starcomms Nigeria Limited
16637 164 664 82 MTN Network Solutions
29571 159 15 16 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
7029 3377 990 155 Windstream Communications Inc
6389 3376 3806 196 bellsouth.net, inc.
4766 2494 11109 993 Korea Telecom (KIX)
18566 2092 383 179 Covad Communications
1785 1889 680 129 PaeTec Communications, Inc.
8402 1835 544 16 Corbina telecom
10620 1797 327 163 TVCABLE BOGOTA
17974 1786 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1745 1105 60 NET Servicos de Comunicao S.A
7545 1659 301 89 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
6389 3376 3180 bellsouth.net, inc.
18566 2092 1913 Covad Communications
8402 1835 1819 Corbina telecom
1785 1889 1760 PaeTec Communications, Inc.
17974 1786 1723 PT TELEKOMUNIKASI INDONESIA
28573 1745 1685 NET Servicos de Comunicao S.A
10620 1797 1634 TVCABLE BOGOTA
7545 1659 1570 TPG Internet Pty Ltd
4766 2494 1501 Korea Telecom (KIX)
22773 1552 1441 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
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 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
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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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
/13:457 /14:833 /15:1483 /16:12179 /17:6279 /18:10474
/19:20577 /20:28732 /21:29740 /22:40373 /23:37551 /24:211374
/25:1190 /26:1428 /27:791 /28:166 /29:60 /30:17
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3039 3377 Windstream Communications Inc
6389 2093 3376 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1812 1835 Corbina telecom
10620 1690 1797 TVCABLE BOGOTA
30036 1361 1417 Mediacom Communications Corp
6503 1263 1502 AVANTEL, S.A.
11492 1147 1184 Cable One
8452 1104 1295 TEDATA
1785 1067 1889 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:532 2:758 4:14 6:3 8:395 12:1988
13:1 14:608 15:12 16:3 17:7 20:8
23:162 24:1758 27:1257 31:961 32:58 33:2
34:2 36:8 37:321 38:785 40:120 41:3049
42:129 44:3 46:1460 47:3 49:348 50:535
52:13 54:6 55:9 56:3 57:31 58:960
59:496 60:279 61:1203 62:979 63:1993 64:4169
65:2263 66:4493 67:2025 68:1148 69:3173 70:909
71:466 72:1816 74:2581 75:492 76:313 77:961
78:1006 79:497 80:1210 81:898 82:665 83:548
84:524 85:1193 86:409 87:902 88:343 89:1628
90:297 91:4663 92:518 93:1417 94:1476 95:1168
96:377 97:316 98:824 99:37 100:7 101:168
103:930 106:66 107:180 108:220 109:1262 110:753
111:905 112:446 113:593 114:630 115:778 116:908
117:722 118:904 119:1210 120:333 121:691 122:1666
123:1104 124:1367 125:1264 128:559 129:183 130:256
131:595 132:173 133:21 134:241 135:62 136:212
137:177 138:352 139:145 140:494 141:244 142:386
143:400 144:513 145:66 146:484 147:243 148:763
149:296 150:157 151:176 152:462 153:171 154:7
155:428 156:215 157:379 158:176 159:523 160:342
161:248 162:343 163:189 164:571 165:389 166:562
167:464 168:816 169:127 170:844 171:125 172:4
173:1725 174:569 175:432 176:455 177:624 178:1306
180:1204 181:74 182:774 183:284 184:447 185:1
186:2147 187:1028 188:1190 189:1779 190:5535 192:5997
193:5602 194:4615 195:3592 196:1292 197:123 198:3614
199:4487 200:5810 201:1899 202:8496 203:8590 204:4349
205:2473 206:2750 207:2789 208:4050 209:3582 210:2762
211:1470 212:1983 213:1907 214:882 215:109 216:5072
217:1521 218:540 219:323 220:1230 221:555 222:327
223:332
End of report
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