Routing Table Report 00:00 GMT Wed 11 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: 408655
Prefixes after maximum aggregation: 173415
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 189754
Total ASes present in the Internet Routing Table: 40690
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 33035
Origin ASes announcing only one prefix: 15489
Transit ASes present in the Internet Routing Table: 5449
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 6195
Unregistered ASNs in the Routing Table: 343
Number of 32-bit ASNs allocated by the RIRs: 2348
Number of 32-bit ASNs visible in the Routing Table: 2206
Prefixes from 32-bit ASNs in the Routing Table: 5418
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1487
Number of addresses announced to Internet: 2356184661
Equivalent to 140 /8s, 112 /16s and 134 /24s
Percentage of available address space announced: 63.6
Percentage of allocated address space announced: 63.6
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: 172152
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97410
Total APNIC prefixes after maximum aggregation: 31146
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 93886
Unique aggregates announced from the APNIC address blocks: 37823
APNIC Region origin ASes present in the Internet Routing Table: 4667
APNIC Prefixes per ASN: 20.12
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 745
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: 177
Number of APNIC addresses announced to Internet: 625530112
Equivalent to 37 /8s, 72 /16s and 213 /24s
Percentage of available APNIC address space announced: 79.3
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: 152192
Total ARIN prefixes after maximum aggregation: 78110
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123230
Unique aggregates announced from the ARIN address blocks: 46976
ARIN Region origin ASes present in the Internet Routing Table: 14965
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5670
ARIN Region transit ASes present in the Internet Routing Table: 1562
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 667416832
Equivalent to 39 /8s, 199 /16s and 249 /24s
Percentage of available ARIN address space announced: 53.0
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: 103016
Total RIPE prefixes after maximum aggregation: 53508
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93363
Unique aggregates announced from the RIPE address blocks: 55182
RIPE Region origin ASes present in the Internet Routing Table: 16378
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7958
RIPE Region transit ASes present in the Internet Routing Table: 2629
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1490
Number of RIPE addresses announced to Internet: 481280396
Equivalent to 28 /8s, 175 /16s and 193 /24s
Percentage of available RIPE address space announced: 77.5
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: 41033
Total LACNIC prefixes after maximum aggregation: 8207
LACNIC Deaggregation factor: 5.00
Prefixes being announced from the LACNIC address blocks: 40558
Unique aggregates announced from the LACNIC address blocks: 19742
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 25.77
LACNIC Region origin ASes announcing only one prefix: 434
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: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 517
Number of LACNIC addresses announced to Internet: 98846216
Equivalent to 5 /8s, 228 /16s and 70 /24s
Percentage of available LACNIC address space announced: 65.5
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: 9021
Total AfriNIC prefixes after maximum aggregation: 2140
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7065
Unique aggregates announced from the AfriNIC address blocks: 2163
AfriNIC Region origin ASes present in the Internet Routing Table: 529
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 166
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: 31543296
Equivalent to 1 /8s, 225 /16s and 80 /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 1922 11108 694 Korea Telecom (KIX)
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1652 301 86 TPG Internet Pty Ltd
4755 1590 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1243 94 540 Sify Limited
9829 1234 1041 30 BSNL National Internet Backbo
7552 1172 1062 11 Vietel Corporation
24560 1023 385 167 Bharti Airtel Ltd.
4808 1007 1942 285 CNCGROUP IP network: China169
18101 946 131 160 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 3431 3807 195 bellsouth.net, inc.
7029 3415 1015 166 Windstream Communications Inc
18566 2088 382 175 Covad Communications
1785 1895 680 128 AppliedTheory Corporation
20115 1641 1563 618 Charter Communications
4323 1592 1059 378 Time Warner Telecom
22773 1574 2910 111 Cox Communications, Inc.
30036 1442 263 761 Mediacom Communications Corp
7018 1280 9807 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 1820 544 16 Corbina telecom
2118 1279 97 14 EUnet/RELCOM Autonomous Syste
286 1067 853 199 KPNQwest Backbone AS
34984 680 188 176 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 654 657 60 Uni2 Autonomous System
6830 639 1943 411 UPC Distribution Services
20940 620 199 487 Akamai Technologies European
8551 579 360 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 1770 1106 60 Types of queries are: POCs, o
6503 1543 418 67 AVANTEL, S.A.
8151 1532 2999 325 Uninet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 689 74 102 Telconet S.A
11172 638 91 73 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 1312 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
6713 492 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
12258 197 28 62 YEBO-AS
33776 187 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 163 666 86 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 3431 3807 195 bellsouth.net, inc.
7029 3415 1015 166 Windstream Communications Inc
18566 2088 382 175 Covad Communications
4766 1922 11108 694 Korea Telecom (KIX)
1785 1895 680 128 AppliedTheory Corporation
8402 1820 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1770 1106 60 Types of queries are: POCs, o
7545 1652 301 86 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 3415 3249 Windstream Communications Inc
18566 2088 1913 Covad Communications
8402 1820 1804 Corbina telecom
1785 1895 1767 AppliedTheory Corporation
17974 1788 1725 PT TELEKOMUNIKASI INDONESIA
28573 1770 1710 Types of queries are: POCs, o
10620 1795 1632 TVCABLE BOGOTA
7545 1652 1566 TPG Internet Pty Ltd
6503 1543 1476 AVANTEL, S.A.
22773 1574 1463 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
54603 UNALLOCATED 8.18.203.0/24 14743 Internap Network Ser
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 7018 AT&T WorldNet Servic
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
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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:459 /14:836 /15:1518 /16:12336 /17:6546 /18:10879
/19:21154 /20:30006 /21:30220 /22:40883 /23:38220 /24:213620
/25:69 /26:76 /27:106 /28:271 /29:98 /30:499
/31:20 /32:463
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3415 Windstream Communications Inc
6389 2149 3431 bellsouth.net, inc.
18566 2041 2088 Covad Communications
8402 1797 1820 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1382 1442 Mediacom Communications Corp
6503 1300 1543 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1120 1312 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 2:754 4:18 6:3 8:397 12:2003
13:1 14:606 15:12 16:3 17:7 20:8
23:159 24:1777 27:1267 31:1001 32:120 33:2
34:2 36:8 37:327 38:795 39:4 40:120
41:3129 42:131 44:3 46:1474 47:3 49:355
50:535 52:13 54:7 55:9 56:3 57:39
58:968 59:519 60:279 61:1271 62:988 63:2009
64:4183 65:2261 66:4518 67:2059 68:1333 69:3269
70:954 71:470 72:1847 73:1 74:2652 75:508
76:328 77:968 78:1008 79:504 80:1207 81:907
82:678 83:549 84:493 85:1211 86:413 87:924
88:354 89:1647 90:297 91:4714 92:523 93:1437
94:1478 95:1140 96:363 97:319 98:892 99:37
100:7 101:172 103:970 106:105 107:182 108:225
109:1276 110:764 111:899 112:449 113:593 114:629
115:854 116:905 117:723 118:917 119:1209 120:346
121:830 122:1669 123:1112 124:1376 125:1256 128:559
129:192 130:258 131:594 132:173 133:21 134:247
135:62 136:212 137:176 138:354 139:158 140:493
141:245 142:387 143:401 144:520 145:66 146:488
147:285 148:800 149:299 150:160 151:176 152:462
153:172 154:7 155:447 156:216 157:381 158:175
159:523 160:342 161:259 162:350 163:189 164:572
165:407 166:562 167:464 168:819 169:128 170:844
171:127 172:4 173:1744 174:577 175:439 176:478
177:650 178:1320 180:1204 181:73 182:795 183:286
184:453 185:1 186:2188 187:1012 188:1188 189:1806
190:5456 192:6024 193:5557 194:4639 195:3615 196:1293
197:126 198:3642 199:4492 200:5814 201:1919 202:8512
203:8625 204:4352 205:2482 206:2772 207:2818 208:4070
209:3617 210:2781 211:1489 212:2044 213:1921 214:886
215:109 216:5101 217:1545 218:546 219:358 220:1232
221:556 222:328 223:330
End of report
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