Routing Table Report 00:00 GMT Mon 27 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: 402143
Prefixes after maximum aggregation: 171459
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 193680
Total ASes present in the Internet Routing Table: 40222
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32898
Origin ASes announcing only one prefix: 15543
Transit ASes present in the Internet Routing Table: 5304
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5240
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 2294
Number of 32-bit ASNs visible in the Routing Table: 2020
Prefixes from 32-bit ASNs in the Routing Table: 4855
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 319
Number of addresses announced to Internet: 2522429665
Equivalent to 150 /8s, 89 /16s and 56 /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: 169465
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96080
Total APNIC prefixes after maximum aggregation: 30687
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92621
Unique aggregates announced from the APNIC address blocks: 39237
APNIC Region origin ASes present in the Internet Routing Table: 4640
APNIC Prefixes per ASN: 19.96
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 739
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: 151
Number of APNIC addresses announced to Internet: 640041728
Equivalent to 38 /8s, 38 /16s and 67 /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: 151199
Total ARIN prefixes after maximum aggregation: 77609
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122774
Unique aggregates announced from the ARIN address blocks: 49629
ARIN Region origin ASes present in the Internet Routing Table: 14936
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5679
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805520392
Equivalent to 48 /8s, 3 /16s and 68 /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: 101699
Total RIPE prefixes after maximum aggregation: 52856
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92557
Unique aggregates announced from the RIPE address blocks: 56722
RIPE Region origin ASes present in the Internet Routing Table: 16350
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8020
RIPE Region transit ASes present in the Internet Routing Table: 2562
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1391
Number of RIPE addresses announced to Internet: 501385612
Equivalent to 29 /8s, 226 /16s and 137 /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: 39317
Total LACNIC prefixes after maximum aggregation: 8113
LACNIC Deaggregation factor: 4.85
Prefixes being announced from the LACNIC address blocks: 38928
Unique aggregates announced from the LACNIC address blocks: 19576
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 24.78
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 291
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 459
Number of LACNIC addresses announced to Internet: 97411592
Equivalent to 5 /8s, 206 /16s and 98 /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: 8762
Total AfriNIC prefixes after maximum aggregation: 2097
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6775
Unique aggregates announced from the AfriNIC address blocks: 2104
AfriNIC Region origin ASes present in the Internet Routing Table: 511
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 121
Average AfriNIC Region AS path length visible: 4.1
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: 31376128
Equivalent to 1 /8s, 222 /16s and 195 /24s
Percentage of available AfriNIC address space announced: 46.8
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 1735 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1638 303 87 TPG Internet Pty Ltd
4755 1559 386 157 Videsh Sanchar Nigam Ltd. Aut
9829 1182 997 29 BSNL National Internet Backbo
9583 1129 84 483 Sify Limited
7552 1104 1062 11 Vietel Corporation
4808 1069 2041 306 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd.
18101 948 130 154 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 3432 1028 167 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1874 680 127 AppliedTheory Corporation
20115 1629 1551 629 Charter Communications
4323 1607 1075 381 Time Warner Telecom
22773 1536 2910 110 Cox Communications, Inc.
30036 1416 254 744 Mediacom Communications Corp
19262 1389 4703 399 Verizon Global Networks
7018 1310 11092 854 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 1803 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
286 1058 806 200 KPNQwest Backbone AS
34984 657 188 172 Tellcom Iletisim Hizmetleri
6830 645 1927 414 UPC Distribution Services
20940 624 203 484 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
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 1751 324 171 TVCABLE BOGOTA
28573 1681 1088 62 Types of queries are: POCs, o
8151 1525 2992 348 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 864 664 33 Types of queries are: POCs, o
27947 663 67 108 Telconet S.A
11172 632 91 72 Alestra
6503 583 418 67 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
3816 557 239 93 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 1253 958 13 TEDATA
24863 831 274 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 3432 1028 167 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1919 11099 676 Korea Telecom (KIX)
1785 1874 680 127 AppliedTheory Corporation
8402 1803 480 15 Corbina telecom
10620 1751 324 171 TVCABLE BOGOTA
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1681 1088 62 Types of queries are: POCs, o
7545 1638 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 3432 3265 Windstream Communications Inc
18566 2093 1916 Covad Communications
8402 1803 1788 Corbina telecom
1785 1874 1747 AppliedTheory Corporation
17974 1735 1699 PT TELEKOMUNIKASI INDONESIA
28573 1681 1619 Types of queries are: POCs, o
10620 1751 1580 TVCABLE BOGOTA
7545 1638 1551 TPG Internet Pty Ltd
22773 1536 1426 Cox Communications, Inc.
4755 1559 1402 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 12.45.103.0/24 209 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
23.27.0.0/16 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 /14:822 /15:1503 /16:12309 /17:6482 /18:10750
/19:21014 /20:29573 /21:29659 /22:40135 /23:37555 /24:209886
/25:67 /26:76 /27:108 /28:277 /29:106 /30:522
/31:18 /32:450
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3075 3432 Windstream Communications Inc
6389 2106 3433 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1782 1803 Corbina telecom
10620 1648 1751 TVCABLE BOGOTA
30036 1366 1416 Mediacom Communications Corp
11492 1122 1159 Cable One
1785 1064 1874 AppliedTheory Corporation
8452 1061 1253 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)
----------------------------------------------
1:513 2:774 4:18 6:3 8:391 12:1968
13:1 14:606 15:11 16:3 17:7 20:8
23:134 24:1745 27:1188 31:947 32:124 33:2
34:2 36:9 37:206 38:778 39:4 40:116
41:2974 42:114 43:1 44:3 46:1351 47:3
49:337 50:513 52:13 54:2 55:7 56:3
57:46 58:970 59:494 60:345 61:1204 62:974
63:2026 64:4144 65:2285 66:4493 67:2071 68:1357
69:3282 70:955 71:406 72:1822 73:1 74:2700
75:483 76:330 77:969 78:970 79:521 80:1222
81:884 82:642 83:531 84:600 85:1160 86:737
87:921 88:350 89:1576 90:282 91:4527 92:512
93:1354 94:1393 95:1121 96:425 97:311 98:830
99:38 100:4 101:246 103:847 106:66 107:162
108:181 109:1552 110:729 111:856 112:442 113:547
114:609 115:784 116:889 117:723 118:917 119:1269
120:368 121:714 122:1631 123:1089 124:1393 125:1325
128:537 129:193 130:219 131:591 132:164 133:21
134:236 135:62 136:214 137:183 138:268 139:157
140:468 141:261 142:395 143:415 144:512 145:69
146:486 147:251 148:767 149:300 150:164 151:198
152:448 153:171 154:7 155:416 156:213 157:372
158:164 159:514 160:321 161:245 162:342 163:179
164:527 165:413 166:559 167:458 168:764 169:149
170:838 171:118 172:4 173:1744 174:601 175:443
176:514 177:512 178:1284 180:1211 181:68 182:755
183:283 184:435 185:1 186:2033 187:858 188:1084
189:1204 190:5510 192:6004 193:5566 194:4368 195:3436
196:1287 197:165 198:3632 199:4422 200:5704 201:1737
202:8441 203:8693 204:4361 205:2447 206:2763 207:2797
208:4088 209:3577 210:2783 211:1489 212:2072 213:1851
214:831 215:100 216:5036 217:1506 218:553 219:338
220:1236 221:563 222:347 223:314
End of report