Routing Table Report 00:00 GMT Sat 03 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: 403057
Prefixes after maximum aggregation: 171724
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 187733
Total ASes present in the Internet Routing Table: 40295
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32828
Origin ASes announcing only one prefix: 15554
Transit ASes present in the Internet Routing Table: 5445
Transit-only ASes present in the Internet Routing Table: 150
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5321
Unregistered ASNs in the Routing Table: 191
Number of 32-bit ASNs allocated by the RIRs: 2307
Number of 32-bit ASNs visible in the Routing Table: 2022
Prefixes from 32-bit ASNs in the Routing Table: 4814
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 440
Number of addresses announced to Internet: 2346585049
Equivalent to 139 /8s, 222 /16s and 11 /24s
Percentage of available address space announced: 63.3
Percentage of allocated address space announced: 63.3
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: 169760
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96462
Total APNIC prefixes after maximum aggregation: 30855
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92897
Unique aggregates announced from the APNIC address blocks: 37895
APNIC Region origin ASes present in the Internet Routing Table: 4644
APNIC Prefixes per ASN: 20.00
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 747
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 157
Number of APNIC addresses announced to Internet: 623656704
Equivalent to 37 /8s, 44 /16s and 63 /24s
Percentage of available APNIC address space announced: 79.1
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: 151230
Total ARIN prefixes after maximum aggregation: 77624
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122761
Unique aggregates announced from the ARIN address blocks: 46679
ARIN Region origin ASes present in the Internet Routing Table: 14957
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5697
ARIN Region transit ASes present in the Internet Routing Table: 1565
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 667062016
Equivalent to 39 /8s, 194 /16s and 143 /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: 101989
Total RIPE prefixes after maximum aggregation: 52932
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 92758
Unique aggregates announced from the RIPE address blocks: 54879
RIPE Region origin ASes present in the Internet Routing Table: 16358
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 8006
RIPE Region transit ASes present in the Internet Routing Table: 2635
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1400
Number of RIPE addresses announced to Internet: 480580236
Equivalent to 28 /8s, 165 /16s and 18 /24s
Percentage of available RIPE address space announced: 77.4
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: 39428
Total LACNIC prefixes after maximum aggregation: 8097
LACNIC Deaggregation factor: 4.87
Prefixes being announced from the LACNIC address blocks: 39010
Unique aggregates announced from the LACNIC address blocks: 19622
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.78
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 447
Number of LACNIC addresses announced to Internet: 97730568
Equivalent to 5 /8s, 211 /16s and 64 /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: 8782
Total AfriNIC prefixes after maximum aggregation: 2107
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6799
Unique aggregates announced from the AfriNIC address blocks: 2147
AfriNIC Region origin ASes present in the Internet Routing Table: 519
AfriNIC Prefixes per ASN: 13.10
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 122
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3
Number of AfriNIC addresses announced to Internet: 31569152
Equivalent to 1 /8s, 225 /16s and 181 /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 1921 11099 673 Korea Telecom (KIX)
17974 1734 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 87 TPG Internet Pty Ltd
4755 1562 386 160 Videsh Sanchar Nigam Ltd. Aut
9829 1182 997 29 BSNL National Internet Backbo
7552 1153 1062 11 Vietel Corporation
9583 1130 83 480 Sify Limited
24560 1012 385 167 Bharti Airtel Ltd.
18101 949 130 155 Reliance Infocom Ltd Internet
4808 921 1874 265 CNCGROUP IP network: China169
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 198 bellsouth.net, inc.
7029 3416 1014 159 Windstream Communications Inc
18566 2090 382 177 Covad Communications
1785 1872 680 126 AppliedTheory Corporation
20115 1631 1550 632 Charter Communications
4323 1542 1007 353 Time Warner Telecom
22773 1538 2910 110 Cox Communications, Inc.
30036 1408 254 742 Mediacom Communications Corp
19262 1389 4703 398 Verizon Global Networks
7018 1285 6834 843 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 1853 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 LDCOM NETWORKS
286 1060 806 201 KPNQwest Backbone AS
34984 657 188 171 Tellcom Iletisim Hizmetleri
6830 643 1927 414 UPC Distribution Services
20940 622 202 482 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 1758 325 170 TVCABLE BOGOTA
28573 1670 1089 60 Types of queries are: POCs, o
8151 1524 3012 343 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 882 672 33 Types of queries are: POCs, o
27947 667 68 107 Telconet S.A
11172 634 91 72 Alestra
6503 581 418 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 1249 958 13 TEDATA
24863 831 274 37 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
6389 3431 3807 198 bellsouth.net, inc.
7029 3416 1014 159 Windstream Communications Inc
18566 2090 382 177 Covad Communications
4766 1921 11099 673 Korea Telecom (KIX)
1785 1872 680 126 AppliedTheory Corporation
8402 1853 544 16 Corbina telecom
10620 1758 325 170 TVCABLE BOGOTA
17974 1734 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1670 1089 60 Types of queries are: POCs, o
7545 1642 303 87 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 3257 Windstream Communications Inc
18566 2090 1913 Covad Communications
8402 1853 1837 Corbina telecom
1785 1872 1746 AppliedTheory Corporation
17974 1734 1697 PT TELEKOMUNIKASI INDONESIA
28573 1670 1610 Types of queries are: POCs, o
10620 1758 1588 TVCABLE BOGOTA
7545 1642 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 /8:20 /9:12 /10:28 /11:81 /12:233
/13:458 /14:823 /15:1506 /16:12318 /17:6497 /18:10786
/19:21015 /20:29677 /21:29705 /22:40209 /23:37607 /24:210475
/25:66 /26:75 /27:109 /28:277 /29:103 /30:509
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3071 3416 Windstream Communications Inc
6389 2105 3431 bellsouth.net, inc.
18566 2039 2090 Covad Communications
8402 1831 1853 Corbina telecom
10620 1655 1758 TVCABLE BOGOTA
30036 1358 1408 Mediacom Communications Corp
11492 1124 1161 Cable One
1785 1060 1872 AppliedTheory Corporation
8452 1059 1249 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)
----------------------------------------------
1:525 2:792 4:18 6:3 8:392 12:1967
13:1 14:612 15:11 16:3 17:7 20:8
23:135 24:1747 27:1205 31:991 32:124 33:2
34:2 36:10 37:217 38:780 39:4 40:116
41:2954 42:121 44:3 46:1388 47:3 49:342
50:513 52:13 54:5 55:9 56:3 57:46
58:977 59:497 60:304 61:1208 62:987 63:2026
64:4139 65:2280 66:4492 67:2074 68:1349 69:3267
70:955 71:409 72:1820 73:1 74:2699 75:483
76:331 77:977 78:972 79:506 80:1218 81:892
82:638 83:543 84:599 85:1164 86:734 87:922
88:350 89:1577 90:284 91:4552 92:516 93:1401
94:1383 95:1122 96:424 97:315 98:827 99:38
100:5 101:229 103:865 106:64 107:166 108:184
109:1541 110:746 111:867 112:440 113:543 114:621
115:794 116:886 117:724 118:922 119:1267 120:367
121:751 122:1621 123:1088 124:1393 125:1324 128:537
129:193 130:265 131:592 132:165 133:21 134:236
135:62 136:212 137:184 138:268 139:157 140:492
141:267 142:393 143:405 144:513 145:69 146:485
147:262 148:760 149:300 150:158 151:198 152:448
153:171 154:7 155:397 156:212 157:372 158:162
159:518 160:322 161:245 162:343 163:185 164:530
165:415 166:560 167:458 168:811 169:149 170:839
171:119 172:4 173:1724 174:597 175:443 176:527
177:488 178:1287 180:1216 181:68 182:763 183:284
184:438 185:1 186:2051 187:862 188:1060 189:1201
190:5486 192:6015 193:5598 194:4381 195:3453 196:1294
197:167 198:3645 199:4441 200:5746 201:1765 202:8451
203:8723 204:4361 205:2454 206:2766 207:2798 208:4082
209:3589 210:2788 211:1488 212:2041 213:1883 214:834
215:102 216:5052 217:1517 218:551 219:335 220:1237
221:565 222:345 223:319
End of report