Routing Table Report 00:00 GMT Sat 25 Feb, 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: 402474
Prefixes after maximum aggregation: 171678
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 193646
Total ASes present in the Internet Routing Table: 40233
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32925
Origin ASes announcing only one prefix: 15556
Transit ASes present in the Internet Routing Table: 5292
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5220
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 2294
Number of 32-bit ASNs visible in the Routing Table: 2016
Prefixes from 32-bit ASNs in the Routing Table: 4845
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 309
Number of addresses announced to Internet: 2522178781
Equivalent to 150 /8s, 85 /16s and 100 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169605
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96355
Total APNIC prefixes after maximum aggregation: 30671
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92759
Unique aggregates announced from the APNIC address blocks: 39238
APNIC Region origin ASes present in the Internet Routing Table: 4641
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1242
APNIC Region transit ASes present in the Internet Routing Table: 738
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 151
Number of APNIC addresses announced to Internet: 640058368
Equivalent to 38 /8s, 38 /16s and 132 /24s
Percentage of available APNIC address space announced: 81.2
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: 151220
Total ARIN prefixes after maximum aggregation: 77791
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122748
Unique aggregates announced from the ARIN address blocks: 49587
ARIN Region origin ASes present in the Internet Routing Table: 14939
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5683
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805521160
Equivalent to 48 /8s, 3 /16s and 71 /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: 101589
Total RIPE prefixes after maximum aggregation: 52895
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92436
Unique aggregates announced from the RIPE address blocks: 56754
RIPE Region origin ASes present in the Internet Routing Table: 16356
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 8025
RIPE Region transit ASes present in the Internet Routing Table: 2558
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1387
Number of RIPE addresses announced to Internet: 501149580
Equivalent to 29 /8s, 222 /16s and 239 /24s
Percentage of available RIPE address space announced: 80.7
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: 39280
Total LACNIC prefixes after maximum aggregation: 8107
LACNIC Deaggregation factor: 4.85
Prefixes being announced from the LACNIC address blocks: 38890
Unique aggregates announced from the LACNIC address blocks: 19547
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 24.69
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 459
Number of LACNIC addresses announced to Internet: 97430792
Equivalent to 5 /8s, 206 /16s and 173 /24s
Percentage of available LACNIC address space announced: 64.5
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: 8964
Total AfriNIC prefixes after maximum aggregation: 2119
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6980
Unique aggregates announced from the AfriNIC address blocks: 2104
AfriNIC Region origin ASes present in the Internet Routing Table: 517
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 31527424
Equivalent to 1 /8s, 225 /16s and 18 /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 1919 11099 676 Korea Telecom (KIX)
17974 1728 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1637 303 86 TPG Internet Pty Ltd
4755 1557 385 157 Videsh Sanchar Nigam Ltd. Aut
7552 1282 1064 7 Vietel Corporation
9583 1126 84 483 Sify Limited
9829 1107 996 29 BSNL National Internet Backbo
4808 1072 2043 308 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd.
18101 949 130 155 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 3433 3807 200 bellsouth.net, inc.
7029 3242 1019 162 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1876 680 126 AppliedTheory Corporation
20115 1629 1551 629 Charter Communications
4323 1605 1059 379 Time Warner Telecom
22773 1536 2910 110 Cox Communications, Inc.
30036 1415 254 745 Mediacom Communications Corp
19262 1388 4703 398 Verizon Global Networks
7018 1317 7013 857 AT&T WorldNet Services
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 1729 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
286 1057 806 200 KPNQwest Backbone AS
34984 657 188 172 Tellcom Iletisim Hizmetleri
6830 644 1927 413 UPC Distribution Services
20940 616 199 479 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 568 360 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 1751 324 171 TVCABLE BOGOTA
28573 1683 1088 62 Types of queries are: POCs, o
8151 1525 2992 345 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 880 668 32 Types of queries are: POCs, o
27947 663 67 108 Telconet S.A
11172 632 91 72 Alestra
6503 584 418 67 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
3816 558 238 91 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 1255 958 13 TEDATA
24863 832 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
33776 182 12 20 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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 3433 3807 200 bellsouth.net, inc.
7029 3242 1019 162 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1919 11099 676 Korea Telecom (KIX)
1785 1876 680 126 AppliedTheory Corporation
10620 1751 324 171 TVCABLE BOGOTA
8402 1729 480 15 Corbina telecom
17974 1728 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1683 1088 62 Types of queries are: POCs, o
7545 1637 303 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 3242 3080 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1876 1750 AppliedTheory Corporation
8402 1729 1714 Corbina telecom
17974 1728 1692 PT TELEKOMUNIKASI INDONESIA
28573 1683 1621 Types of queries are: POCs, o
10620 1751 1580 TVCABLE BOGOTA
7545 1637 1551 TPG Internet Pty Ltd
22773 1536 1426 Cox Communications, Inc.
4755 1557 1400 Videsh Sanchar Nigam Ltd. Aut
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
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 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
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
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /12:232
/13:459 /14:817 /15:1506 /16:12299 /17:6485 /18:10766
/19:21049 /20:29623 /21:29764 /22:40218 /23:37598 /24:209888
/25:67 /26:81 /27:109 /28:279 /29:105 /30:521
/31:18 /32:450
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2891 3242 Windstream Communications Inc
6389 2106 3433 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1708 1729 Corbina telecom
10620 1648 1751 TVCABLE BOGOTA
30036 1365 1415 Mediacom Communications Corp
11492 1122 1159 Cable One
1785 1064 1876 AppliedTheory Corporation
8452 1063 1255 TEDATA
15557 1046 1099 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:507 2:699 4:18 6:3 8:389 12:1965
13:1 14:598 15:11 16:3 17:7 20:8
23:134 24:1745 27:1196 31:950 32:124 33:2
34:2 36:9 37:200 38:782 39:4 40:116
41:3107 42:113 43:1 44:3 46:1332 47:3
49:322 50:512 52:13 54:2 55:8 56:3
57:46 58:971 59:494 60:345 61:1202 62:976
63:2026 64:4142 65:2286 66:4484 67:2061 68:1351
69:3276 70:955 71:406 72:1821 73:1 74:2701
75:483 76:332 77:971 78:971 79:521 80:1228
81:885 82:642 83:531 84:596 85:1159 86:736
87:922 88:350 89:1578 90:282 91:4519 92:512
93:1352 94:1394 95:1119 96:424 97:311 98:838
99:38 100:4 101:247 103:846 106:66 107:161
108:181 109:1552 110:733 111:855 112:440 113:543
114:615 115:779 116:887 117:724 118:918 119:1264
120:368 121:714 122:1620 123:1086 124:1382 125:1318
128:536 129:193 130:218 131:591 132:162 133:21
134:236 135:62 136:214 137:184 138:268 139:157
140:492 141:260 142:395 143:419 144:515 145:69
146:487 147:251 148:768 149:300 150:163 151:198
152:448 153:171 154:7 155:415 156:212 157:372
158:163 159:517 160:320 161:245 162:342 163:188
164:531 165:413 166:559 167:459 168:765 169:149
170:838 171:117 172:4 173:1739 174:601 175:444
176:509 177:506 178:1286 180:1209 181:68 182:754
183:281 184:433 185:1 186:2038 187:857 188:1086
189:1184 190:5473 192:6008 193:5564 194:4370 195:3442
196:1293 197:167 198:3638 199:4423 200:5712 201:1744
202:8463 203:8695 204:4365 205:2446 206:2759 207:2801
208:4092 209:3579 210:2786 211:1491 212:2072 213:1854
214:834 215:101 216:5042 217:1509 218:552 219:338
220:1231 221:563 222:347 223:311
End of report
