Routing Table Report 00:00 GMT Thu 05 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: 407707
Prefixes after maximum aggregation: 173283
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196158
Total ASes present in the Internet Routing Table: 40637
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 32970
Origin ASes announcing only one prefix: 15517
Transit ASes present in the Internet Routing Table: 5486
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 40
Max AS path prepend of ASN (22394) 35
Prefixes from unregistered ASNs in the Routing Table: 6010
Unregistered ASNs in the Routing Table: 311
Number of 32-bit ASNs allocated by the RIRs: 2344
Number of 32-bit ASNs visible in the Routing Table: 2181
Prefixes from 32-bit ASNs in the Routing Table: 5371
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1370
Number of addresses announced to Internet: 2532556629
Equivalent to 150 /8s, 243 /16s and 191 /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: 171805
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96930
Total APNIC prefixes after maximum aggregation: 31087
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93413
Unique aggregates announced from the APNIC address blocks: 39237
APNIC Region origin ASes present in the Internet Routing Table: 4664
APNIC Prefixes per ASN: 20.03
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 745
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 168
Number of APNIC addresses announced to Internet: 642219520
Equivalent to 38 /8s, 71 /16s and 126 /24s
Percentage of available APNIC address space announced: 81.4
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: 152130
Total ARIN prefixes after maximum aggregation: 78059
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123274
Unique aggregates announced from the ARIN address blocks: 49991
ARIN Region origin ASes present in the Internet Routing Table: 14978
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5704
ARIN Region transit ASes present in the Internet Routing Table: 1571
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 40
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805474560
Equivalent to 48 /8s, 2 /16s and 145 /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: 103036
Total RIPE prefixes after maximum aggregation: 53470
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93409
Unique aggregates announced from the RIPE address blocks: 57302
RIPE Region origin ASes present in the Internet Routing Table: 16368
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7955
RIPE Region transit ASes present in the Internet Routing Table: 2653
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1480
Number of RIPE addresses announced to Internet: 502343308
Equivalent to 29 /8s, 241 /16s and 38 /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: 40834
Total LACNIC prefixes after maximum aggregation: 8257
LACNIC Deaggregation factor: 4.95
Prefixes being announced from the LACNIC address blocks: 40324
Unique aggregates announced from the LACNIC address blocks: 19733
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 25.68
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 297
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 511
Number of LACNIC addresses announced to Internet: 98788616
Equivalent to 5 /8s, 227 /16s and 101 /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: 8928
Total AfriNIC prefixes after maximum aggregation: 2137
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6981
Unique aggregates announced from the AfriNIC address blocks: 2150
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.25
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 31505152
Equivalent to 1 /8s, 224 /16s and 187 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1927 11101 677 Korea Telecom (KIX)
17974 1783 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1655 301 89 TPG Internet Pty Ltd
4755 1574 386 157 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1234 1041 30 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
24560 1022 385 168 Bharti Airtel Ltd.
18101 948 131 159 Reliance Infocom Ltd Internet
9498 937 260 66 BHARTI Airtel Ltd.
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 3380 990 156 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1887 680 128 AppliedTheory Corporation
20115 1636 1561 619 Charter Communications
4323 1583 1074 375 Time Warner Telecom
22773 1565 2910 111 Cox Communications, Inc.
30036 1456 264 741 Mediacom Communications Corp
7018 1281 13742 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 1789 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
286 1065 853 198 KPNQwest Backbone AS
31148 678 37 9 FreeNet ISP
34984 675 188 172 Tellcom Iletisim Hizmetleri
12479 656 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 638 206 499 Akamai Technologies European
8551 600 360 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 1747 1105 61 Types of queries are: POCs, o
6503 1509 418 65 AVANTEL, S.A.
8151 1474 2999 325 Uninet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 865 685 30 Types of queries are: POCs, o
27947 689 74 100 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 571 242 101 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 1293 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 YEBO-AS
33776 183 11 20 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 Johnnic e-Ventures
29571 159 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 3380 990 156 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1927 11101 677 Korea Telecom (KIX)
1785 1887 680 128 AppliedTheory Corporation
10620 1795 327 163 TVCABLE BOGOTA
8402 1789 544 16 Corbina telecom
17974 1783 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1747 1105 61 Types of queries are: POCs, o
7545 1655 301 89 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 3380 3224 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1789 1773 Corbina telecom
1785 1887 1759 AppliedTheory Corporation
17974 1783 1720 PT TELEKOMUNIKASI INDONESIA
28573 1747 1686 Types of queries are: POCs, o
10620 1795 1632 TVCABLE BOGOTA
7545 1655 1566 TPG Internet Pty Ltd
22773 1565 1454 Cox Communications, Inc.
6503 1509 1444 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 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 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
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
/13:457 /14:837 /15:1515 /16:12323 /17:6546 /18:10883
/19:21142 /20:29954 /21:30182 /22:40791 /23:38037 /24:213062
/25:69 /26:76 /27:107 /28:270 /29:100 /30:499
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3039 3380 Windstream Communications Inc
6389 2149 3432 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1766 1789 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1397 1456 Mediacom Communications Corp
6503 1271 1509 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1102 1293 TEDATA
1785 1064 1887 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:537 2:757 4:18 6:3 8:396 12:1996
13:1 14:608 15:12 16:3 17:7 20:8
23:161 24:1774 27:1261 31:991 32:120 33:2
34:2 36:8 37:323 38:790 39:4 40:120
41:3084 42:130 44:3 46:1473 47:3 49:351
50:538 52:13 54:7 55:9 56:3 57:39
58:965 59:494 60:280 61:1215 62:987 63:2011
64:4197 65:2265 66:4523 67:2055 68:1335 69:3290
70:955 71:466 72:1848 73:1 74:2641 75:505
76:326 77:972 78:1010 79:508 80:1214 81:906
82:676 83:551 84:527 85:1197 86:413 87:913
88:348 89:1641 90:296 91:4691 92:521 93:1396
94:1485 95:1167 96:381 97:318 98:882 99:37
100:6 101:171 103:939 106:74 107:180 108:225
109:1271 110:764 111:908 112:440 113:573 114:622
115:794 116:920 117:722 118:917 119:1212 120:336
121:719 122:1668 123:1107 124:1370 125:1258 128:560
129:195 130:259 131:595 132:173 133:21 134:245
135:63 136:213 137:177 138:353 139:157 140:493
141:244 142:387 143:399 144:508 145:66 146:486
147:252 148:798 149:298 150:156 151:177 152:462
153:172 154:7 155:447 156:216 157:374 158:175
159:523 160:343 161:254 162:347 163:189 164:572
165:407 166:562 167:464 168:817 169:148 170:844
171:126 172:4 173:1747 174:573 175:444 176:458
177:636 178:1317 180:1228 181:73 182:787 183:284
184:451 185:1 186:2131 187:1027 188:1184 189:1781
190:5431 192:6029 193:5629 194:4644 195:3643 196:1289
197:125 198:3640 199:4495 200:5811 201:1900 202:8487
203:8625 204:4353 205:2482 206:2778 207:2823 208:4088
209:3608 210:2784 211:1481 212:2042 213:1917 214:881
215:108 216:5094 217:1529 218:544 219:337 220:1238
221:555 222:333 223:329
End of report
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