Routing Table Report 00:00 GMT Wed 29 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: 402807
Prefixes after maximum aggregation: 171640
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194096
Total ASes present in the Internet Routing Table: 40243
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32878
Origin ASes announcing only one prefix: 15539
Transit ASes present in the Internet Routing Table: 5339
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: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5252
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 2297
Number of 32-bit ASNs visible in the Routing Table: 2026
Prefixes from 32-bit ASNs in the Routing Table: 4876
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 379
Number of addresses announced to Internet: 2523289569
Equivalent to 150 /8s, 102 /16s and 87 /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: 169736
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96412
Total APNIC prefixes after maximum aggregation: 30746
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92822
Unique aggregates announced from the APNIC address blocks: 39368
APNIC Region origin ASes present in the Internet Routing Table: 4633
APNIC Prefixes per ASN: 20.03
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 741
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: 152
Number of APNIC addresses announced to Internet: 641182208
Equivalent to 38 /8s, 55 /16s and 170 /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: 151250
Total ARIN prefixes after maximum aggregation: 77648
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122741
Unique aggregates announced from the ARIN address blocks: 49635
ARIN Region origin ASes present in the Internet Routing Table: 14947
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5692
ARIN Region transit ASes present in the Internet Routing Table: 1528
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: 805481224
Equivalent to 48 /8s, 2 /16s and 171 /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: 101803
Total RIPE prefixes after maximum aggregation: 52937
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92588
Unique aggregates announced from the RIPE address blocks: 56816
RIPE Region origin ASes present in the Internet Routing Table: 16359
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8008
RIPE Region transit ASes present in the Internet Routing Table: 2583
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1395
Number of RIPE addresses announced to Internet: 501372300
Equivalent to 29 /8s, 226 /16s and 85 /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: 39422
Total LACNIC prefixes after maximum aggregation: 8116
LACNIC Deaggregation factor: 4.86
Prefixes being announced from the LACNIC address blocks: 39032
Unique aggregates announced from the LACNIC address blocks: 19637
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.80
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 292
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: 460
Number of LACNIC addresses announced to Internet: 97456136
Equivalent to 5 /8s, 207 /16s and 16 /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: 8820
Total AfriNIC prefixes after maximum aggregation: 2096
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6839
Unique aggregates announced from the AfriNIC address blocks: 2124
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 123
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: 31495168
Equivalent to 1 /8s, 224 /16s and 148 /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 1919 11099 676 Korea Telecom (KIX)
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 87 TPG Internet Pty Ltd
4755 1559 386 157 Videsh Sanchar Nigam Ltd. Aut
9829 1182 997 29 BSNL National Internet Backbo
7552 1154 1062 11 Vietel Corporation
9583 1132 84 481 Sify Limited
4808 1071 2041 307 CNCGROUP IP network: China169
24560 1011 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 3432 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 1631 1551 629 Charter Communications
4323 1608 1075 382 Time Warner Telecom
22773 1537 2910 110 Cox Communications, Inc.
30036 1405 252 744 Mediacom Communications Corp
19262 1388 4703 398 Verizon Global Networks
7018 1316 6997 858 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 1754 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
286 1059 806 200 KPNQwest Backbone AS
34984 657 188 173 Tellcom Iletisim Hizmetleri
6830 645 1927 414 UPC Distribution Services
20940 625 203 484 Akamai Technologies European
12479 610 644 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 1755 324 173 TVCABLE BOGOTA
28573 1688 1088 63 Types of queries are: POCs, o
8151 1528 2994 346 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 896 664 33 Types of queries are: POCs, o
27947 663 67 108 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 1256 958 13 TEDATA
24863 831 274 35 LINKdotNET AS number
6713 490 649 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 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 3432 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
10620 1755 324 173 TVCABLE BOGOTA
8402 1754 480 15 Corbina telecom
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1688 1088 63 Types of queries are: POCs, o
7545 1640 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
1785 1874 1747 AppliedTheory Corporation
8402 1754 1739 Corbina telecom
17974 1735 1699 PT TELEKOMUNIKASI INDONESIA
28573 1688 1625 Types of queries are: POCs, o
10620 1755 1582 TVCABLE BOGOTA
7545 1640 1553 TPG Internet Pty Ltd
22773 1537 1427 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
65505 PRIVATE 1.1.1.0/24 5511 France Telecom
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,
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 /15:1503 /16:12312 /17:6491 /18:10769
/19:21023 /20:29657 /21:29768 /22:40153 /23:37579 /24:210273
/25:67 /26:76 /27:109 /28:278 /29:105 /30:523
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3076 3432 Windstream Communications Inc
6389 2106 3432 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1733 1754 Corbina telecom
10620 1652 1755 TVCABLE BOGOTA
30036 1355 1405 Mediacom Communications Corp
11492 1123 1160 Cable One
1785 1064 1874 AppliedTheory Corporation
8452 1064 1256 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)
----------------------------------------------
1:522 2:728 4:14 6:3 8:391 12:1966
13:1 14:609 15:11 16:3 17:7 20:8
23:135 24:1734 27:1196 31:949 32:124 33:2
34:2 36:9 37:210 38:781 39:4 40:116
41:3038 42:115 44:3 46:1380 47:3 49:337
50:512 52:13 54:3 55:7 56:3 57:46
58:976 59:495 60:347 61:1199 62:972 63:2024
64:4138 65:2280 66:4492 67:2087 68:1357 69:3282
70:959 71:409 72:1821 73:1 74:2698 75:483
76:331 77:977 78:968 79:501 80:1223 81:889
82:641 83:543 84:599 85:1163 86:736 87:922
88:350 89:1576 90:283 91:4542 92:514 93:1373
94:1378 95:1116 96:425 97:313 98:823 99:38
100:4 101:230 103:854 106:45 107:162 108:182
109:1552 110:745 111:856 112:440 113:550 114:616
115:784 116:887 117:724 118:918 119:1269 120:365
121:712 122:1631 123:1089 124:1390 125:1324 128:538
129:193 130:235 131:591 132:164 133:21 134:236
135:62 136:214 137:183 138:268 139:157 140:491
141:264 142:395 143:423 144:515 145:69 146:485
147:251 148:768 149:300 150:162 151:198 152:448
153:171 154:7 155:415 156:213 157:372 158:164
159:514 160:322 161:245 162:342 163:188 164:531
165:414 166:559 167:458 168:771 169:149 170:838
171:119 172:4 173:1743 174:605 175:443 176:518
177:534 178:1281 180:1212 181:69 182:757 183:278
184:434 185:1 186:2060 187:862 188:1086 189:1209
190:5474 192:6019 193:5575 194:4371 195:3450 196:1299
197:166 198:3645 199:4425 200:5739 201:1751 202:8459
203:8720 204:4362 205:2444 206:2761 207:2798 208:4086
209:3576 210:2792 211:1485 212:2070 213:1872 214:853
215:101 216:5044 217:1516 218:552 219:332 220:1235
221:563 222:347 223:314
End of report