Routing Table Report 00:00 GMT Mon 09 Apr, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 408001
Prefixes after maximum aggregation: 173406
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196458
Total ASes present in the Internet Routing Table: 40646
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 33014
Origin ASes announcing only one prefix: 15480
Transit ASes present in the Internet Routing Table: 5434
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6146
Unregistered ASNs in the Routing Table: 334
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 2198
Prefixes from 32-bit ASNs in the Routing Table: 5384
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1437
Number of addresses announced to Internet: 2534277205
Equivalent to 151 /8s, 14 /16s and 0 /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: 92.1
Total number of prefixes smaller than registry allocations: 171966
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96988
Total APNIC prefixes after maximum aggregation: 31190
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 93472
Unique aggregates announced from the APNIC address blocks: 39444
APNIC Region origin ASes present in the Internet Routing Table: 4666
APNIC Prefixes per ASN: 20.03
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 172
Number of APNIC addresses announced to Internet: 642940416
Equivalent to 38 /8s, 82 /16s and 126 /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: 152175
Total ARIN prefixes after maximum aggregation: 78050
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123274
Unique aggregates announced from the ARIN address blocks: 50013
ARIN Region origin ASes present in the Internet Routing Table: 14962
ARIN Prefixes per ASN: 8.24
ARIN Region origin ASes announcing only one prefix: 5671
ARIN Region transit ASes present in the Internet Routing Table: 1568
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805886976
Equivalent to 48 /8s, 8 /16s and 220 /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: 103044
Total RIPE prefixes after maximum aggregation: 53513
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93425
Unique aggregates announced from the RIPE address blocks: 57234
RIPE Region origin ASes present in the Internet Routing Table: 16371
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7953
RIPE Region transit ASes present in the Internet Routing Table: 2623
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1489
Number of RIPE addresses announced to Internet: 502527628
Equivalent to 29 /8s, 243 /16s and 246 /24s
Percentage of available RIPE address space announced: 81.0
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: 40898
Total LACNIC prefixes after maximum aggregation: 8233
LACNIC Deaggregation factor: 4.97
Prefixes being announced from the LACNIC address blocks: 40407
Unique aggregates announced from the LACNIC address blocks: 19738
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 25.72
LACNIC Region origin ASes announcing only one prefix: 435
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: 515
Number of LACNIC addresses announced to Internet: 98711560
Equivalent to 5 /8s, 226 /16s and 56 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8963
Total AfriNIC prefixes after maximum aggregation: 2126
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7018
Unique aggregates announced from the AfriNIC address blocks: 2155
AfriNIC Region origin ASes present in the Internet Routing Table: 524
AfriNIC Prefixes per ASN: 13.39
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: 4.1
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: 31532800
Equivalent to 1 /8s, 225 /16s and 39 /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 1910 11105 682 Korea Telecom (KIX)
17974 1783 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1651 301 85 TPG Internet Pty Ltd
4755 1575 386 158 Videsh Sanchar Nigam Ltd. Aut
9583 1245 94 541 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1172 1062 11 Vietel Corporation
4808 1080 2024 306 CNCGROUP IP network: China169
24560 1021 385 167 Bharti Airtel Ltd.
18101 948 131 159 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3432 3807 196 bellsouth.net, inc.
7029 3416 1015 166 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1895 680 128 AppliedTheory Corporation
20115 1638 1561 617 Charter Communications
4323 1593 1059 379 Time Warner Telecom
22773 1569 2910 111 Cox Communications, Inc.
30036 1462 265 743 Mediacom Communications Corp
7018 1282 9791 831 AT&T WorldNet Services
11492 1185 216 365 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1816 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
286 1065 853 199 KPNQwest Backbone AS
31148 679 37 9 FreeNet ISP
34984 676 188 173 Tellcom Iletisim Hizmetleri
12479 656 658 57 Uni2 Autonomous System
6830 640 1943 411 UPC Distribution Services
20940 638 206 500 Akamai Technologies European
8551 577 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1795 327 163 TVCABLE BOGOTA
28573 1759 1096 79 Types of queries are: POCs, o
6503 1537 418 67 AVANTEL, S.A.
8151 1525 2980 336 Uninet S.A. de C.V.
7303 1352 826 188 Telecom Argentina Stet-France
26615 878 697 32 Types of queries are: POCs, o
27947 688 74 102 Telconet S.A
11172 638 107 74 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 575 242 100 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1309 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
33776 208 12 21 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 162 666 85 Johnnic e-Ventures
29571 161 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3432 3807 196 bellsouth.net, inc.
7029 3416 1015 166 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1910 11105 682 Korea Telecom (KIX)
1785 1895 680 128 AppliedTheory Corporation
8402 1816 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1783 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1759 1096 79 Types of queries are: POCs, o
7545 1651 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3416 3250 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1816 1800 Corbina telecom
1785 1895 1767 AppliedTheory Corporation
17974 1783 1720 PT TELEKOMUNIKASI INDONESIA
28573 1759 1680 Types of queries are: POCs, o
10620 1795 1632 TVCABLE BOGOTA
7545 1651 1566 TPG Internet Pty Ltd
6503 1537 1470 AVANTEL, S.A.
22773 1569 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54601 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
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 12.45.103.0/24 209 Qwest
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/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/rviews/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 /14:836 /15:1516 /16:12333 /17:6549 /18:10887
/19:21143 /20:29956 /21:30166 /22:40833 /23:38062 /24:213288
/25:68 /26:76 /27:105 /28:269 /29:100 /30:498
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3416 Windstream Communications Inc
6389 2149 3432 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1793 1816 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1402 1462 Mediacom Communications Corp
6503 1295 1537 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1118 1309 TEDATA
1785 1067 1895 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:759 4:18 6:3 8:397 12:2001
13:1 14:600 15:12 16:3 17:7 20:8
23:160 24:1776 27:1268 31:998 32:120 33:2
34:2 36:8 37:319 38:793 39:4 40:120
41:3123 42:132 44:3 46:1472 47:3 49:355
50:539 52:12 54:7 55:8 56:3 57:39
58:965 59:494 60:279 61:1213 62:981 63:2015
64:4184 65:2263 66:4524 67:2058 68:1334 69:3282
70:954 71:468 72:1861 73:1 74:2654 75:507
76:326 77:969 78:1007 79:508 80:1212 81:906
82:676 83:549 84:493 85:1201 86:411 87:913
88:354 89:1647 90:297 91:4698 92:522 93:1428
94:1485 95:1144 96:382 97:318 98:891 99:37
100:6 101:171 103:953 106:74 107:181 108:222
109:1295 110:762 111:902 112:449 113:591 114:627
115:799 116:916 117:721 118:918 119:1209 120:345
121:718 122:1669 123:1109 124:1377 125:1258 128:557
129:195 130:259 131:595 132:173 133:21 134:245
135:62 136:213 137:176 138:354 139:157 140:490
141:244 142:387 143:398 144:511 145:64 146:487
147:282 148:800 149:299 150:157 151:176 152:462
153:172 154:7 155:445 156:216 157:381 158:175
159:522 160:342 161:256 162:350 163:189 164:572
165:407 166:562 167:464 168:821 169:128 170:845
171:127 172:4 173:1754 174:581 175:441 176:460
177:646 178:1320 180:1209 181:73 182:792 183:285
184:451 185:1 186:2144 187:1028 188:1183 189:1791
190:5477 192:6020 193:5631 194:4645 195:3646 196:1295
197:127 198:3642 199:4488 200:5799 201:1904 202:8493
203:8620 204:4345 205:2483 206:2772 207:2818 208:4072
209:3617 210:2768 211:1488 212:2043 213:1915 214:885
215:109 216:5101 217:1532 218:545 219:358 220:1234
221:555 222:329 223:330
End of report
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