Routing Table Report 00:00 GMT Fri 02 Mar, 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: 402994
Prefixes after maximum aggregation: 171713
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194093
Total ASes present in the Internet Routing Table: 40245
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32866
Origin ASes announcing only one prefix: 15525
Transit ASes present in the Internet Routing Table: 5343
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5255
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 2303
Number of 32-bit ASNs visible in the Routing Table: 2036
Prefixes from 32-bit ASNs in the Routing Table: 4881
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 423
Number of addresses announced to Internet: 2523562497
Equivalent to 150 /8s, 106 /16s and 130 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
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: 169715
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96487
Total APNIC prefixes after maximum aggregation: 30768
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92923
Unique aggregates announced from the APNIC address blocks: 39368
APNIC Region origin ASes present in the Internet Routing Table: 4635
APNIC Prefixes per ASN: 20.05
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 747
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 157
Number of APNIC addresses announced to Internet: 641155072
Equivalent to 38 /8s, 55 /16s and 64 /24s
Percentage of available APNIC address space announced: 81.3
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: 151271
Total ARIN prefixes after maximum aggregation: 77670
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122714
Unique aggregates announced from the ARIN address blocks: 49660
ARIN Region origin ASes present in the Internet Routing Table: 14929
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5677
ARIN Region transit ASes present in the Internet Routing Table: 1537
Average ARIN Region AS path length visible: 3.5
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: 805495048
Equivalent to 48 /8s, 2 /16s and 225 /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: 101939
Total RIPE prefixes after maximum aggregation: 52959
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92677
Unique aggregates announced from the RIPE address blocks: 56748
RIPE Region origin ASes present in the Internet Routing Table: 16359
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 8005
RIPE Region transit ASes present in the Internet Routing Table: 2580
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1397
Number of RIPE addresses announced to Internet: 501289612
Equivalent to 29 /8s, 225 /16s and 18 /24s
Percentage of available RIPE address space announced: 80.8
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: 39330
Total LACNIC prefixes after maximum aggregation: 8100
LACNIC Deaggregation factor: 4.86
Prefixes being announced from the LACNIC address blocks: 38948
Unique aggregates announced from the LACNIC address blocks: 19606
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.78
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 463
Number of LACNIC addresses announced to Internet: 97651240
Equivalent to 5 /8s, 210 /16s and 10 /24s
Percentage of available LACNIC address space announced: 64.7
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: 8864
Total AfriNIC prefixes after maximum aggregation: 2112
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6891
Unique aggregates announced from the AfriNIC address blocks: 2130
AfriNIC Region origin ASes present in the Internet Routing Table: 515
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 122
Average AfriNIC Region AS path length visible: 4.2
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: 31559424
Equivalent to 1 /8s, 225 /16s and 143 /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 1920 11099 676 Korea Telecom (KIX)
17974 1733 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 88 TPG Internet Pty Ltd
4755 1559 385 157 Videsh Sanchar Nigam Ltd. Aut
9829 1181 997 29 BSNL National Internet Backbo
7552 1154 1062 11 Vietel Corporation
9583 1131 83 481 Sify Limited
4808 1065 2037 304 CNCGROUP IP network: China169
24560 1011 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
7029 3432 1028 167 Windstream Communications Inc
6389 3431 3807 199 bellsouth.net, inc.
18566 2092 382 177 Covad Communications
1785 1875 680 128 AppliedTheory Corporation
20115 1631 1550 631 Charter Communications
4323 1608 1075 382 Time Warner Telecom
22773 1538 2910 110 Cox Communications, Inc.
30036 1412 254 747 Mediacom Communications Corp
19262 1389 4703 398 Verizon Global Networks
7018 1289 6995 848 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 1759 480 15 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 LDCOM NETWORKS
286 1058 806 201 KPNQwest Backbone AS
34984 657 188 171 Tellcom Iletisim Hizmetleri
6830 643 1927 414 UPC Distribution Services
20940 626 203 485 Akamai Technologies European
12479 610 644 55 Uni2 Autonomous System
8551 602 360 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 1756 325 174 TVCABLE BOGOTA
28573 1686 1088 63 Types of queries are: POCs, o
8151 1524 2993 343 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 898 672 33 Types of queries are: POCs, o
27947 667 68 109 Telconet S.A
11172 634 91 72 Alestra
6503 585 418 67 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
3816 561 240 89 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 1243 958 13 TEDATA
24863 832 274 35 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 211 16 10 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
33776 168 12 19 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
7029 3432 1028 167 Windstream Communications Inc
6389 3431 3807 199 bellsouth.net, inc.
18566 2092 382 177 Covad Communications
4766 1920 11099 676 Korea Telecom (KIX)
1785 1875 680 128 AppliedTheory Corporation
8402 1759 480 15 Corbina telecom
10620 1756 325 174 TVCABLE BOGOTA
17974 1733 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1686 1088 63 Types of queries are: POCs, o
7545 1643 303 88 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
6389 3431 3232 bellsouth.net, inc.
18566 2092 1915 Covad Communications
1785 1875 1747 AppliedTheory Corporation
8402 1759 1744 Corbina telecom
17974 1733 1696 PT TELEKOMUNIKASI INDONESIA
28573 1686 1623 Types of queries are: POCs, o
10620 1756 1582 TVCABLE BOGOTA
7545 1643 1555 TPG Internet Pty Ltd
22773 1538 1428 Cox Communications, Inc.
2118 1421 1408 EUnet/RELCOM Autonomous Syste
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 12.45.103.0/24 209 Qwest
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
23.27.0.0/20 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /12:233
/13:458 /14:822 /15:1505 /16:12296 /17:6503 /18:10777
/19:21032 /20:29682 /21:29753 /22:40171 /23:37588 /24:210430
/25:66 /26:75 /27:109 /28:277 /29:102 /30:507
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3076 3432 Windstream Communications Inc
6389 2104 3431 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1738 1759 Corbina telecom
10620 1653 1756 TVCABLE BOGOTA
30036 1362 1412 Mediacom Communications Corp
11492 1124 1161 Cable One
1785 1064 1875 AppliedTheory Corporation
8452 1053 1243 TEDATA
7011 1040 1156 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:527 2:730 4:18 6:3 8:392 12:1968
13:1 14:611 15:11 16:3 17:7 20:8
23:136 24:1747 27:1206 31:989 32:124 33:2
34:2 36:10 37:215 38:780 39:4 40:116
41:3021 42:121 44:3 46:1388 47:3 49:341
50:501 52:13 54:4 55:9 56:3 57:46
58:979 59:498 60:304 61:1209 62:989 63:2025
64:4142 65:2285 66:4492 67:2077 68:1347 69:3263
70:955 71:409 72:1820 73:1 74:2698 75:483
76:331 77:980 78:971 79:506 80:1220 81:892
82:639 83:543 84:599 85:1160 86:732 87:922
88:350 89:1579 90:284 91:4541 92:516 93:1375
94:1384 95:1120 96:424 97:315 98:827 99:38
100:5 101:245 103:863 106:62 107:166 108:183
109:1540 110:749 111:862 112:440 113:548 114:623
115:792 116:888 117:724 118:918 119:1268 120:368
121:751 122:1620 123:1084 124:1393 125:1324 128:539
129:193 130:265 131:592 132:163 133:21 134:236
135:62 136:212 137:184 138:268 139:155 140:491
141:264 142:392 143:409 144:517 145:69 146:484
147:264 148:760 149:300 150:162 151:198 152:448
153:171 154:7 155:415 156:212 157:372 158:162
159:518 160:321 161:245 162:343 163:187 164:530
165:414 166:559 167:458 168:809 169:149 170:839
171:119 172:4 173:1742 174:602 175:444 176:525
177:516 178:1288 180:1217 181:68 182:762 183:282
184:435 185:1 186:2061 187:843 188:1057 189:1206
190:5449 192:6018 193:5602 194:4379 195:3454 196:1298
197:169 198:3643 199:4437 200:5737 201:1749 202:8455
203:8721 204:4364 205:2452 206:2765 207:2798 208:4082
209:3583 210:2789 211:1490 212:2028 213:1888 214:834
215:101 216:5045 217:1521 218:548 219:334 220:1236
221:564 222:345 223:318
End of report