Routing Table Report 00:00 GMT Mon 19 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: 404645
Prefixes after maximum aggregation: 172297
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194885
Total ASes present in the Internet Routing Table: 40428
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32919
Origin ASes announcing only one prefix: 15518
Transit ASes present in the Internet Routing Table: 5415
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5579
Unregistered ASNs in the Routing Table: 232
Number of 32-bit ASNs allocated by the RIRs: 2322
Number of 32-bit ASNs visible in the Routing Table: 2094
Prefixes from 32-bit ASNs in the Routing Table: 5072
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 707
Number of addresses announced to Internet: 2527493333
Equivalent to 150 /8s, 166 /16s and 124 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 170363
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96355
Total APNIC prefixes after maximum aggregation: 30892
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 92831
Unique aggregates announced from the APNIC address blocks: 39247
APNIC Region origin ASes present in the Internet Routing Table: 4660
APNIC Prefixes per ASN: 19.92
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 166
Number of APNIC addresses announced to Internet: 640882944
Equivalent to 38 /8s, 51 /16s and 25 /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: 151591
Total ARIN prefixes after maximum aggregation: 77892
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122911
Unique aggregates announced from the ARIN address blocks: 49866
ARIN Region origin ASes present in the Internet Routing Table: 14970
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5684
ARIN Region transit ASes present in the Internet Routing Table: 1566
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 806669056
Equivalent to 48 /8s, 20 /16s and 203 /24s
Percentage of available ARIN address space announced: 64.1
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: 102893
Total RIPE prefixes after maximum aggregation: 53150
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 93512
Unique aggregates announced from the RIPE address blocks: 57097
RIPE Region origin ASes present in the Internet Routing Table: 16359
RIPE Prefixes per ASN: 5.72
RIPE Region origin ASes announcing only one prefix: 7981
RIPE Region transit ASes present in the Internet Routing Table: 2627
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1425
Number of RIPE addresses announced to Internet: 502229900
Equivalent to 29 /8s, 239 /16s and 107 /24s
Percentage of available RIPE address space announced: 80.9
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: 39636
Total LACNIC prefixes after maximum aggregation: 8096
LACNIC Deaggregation factor: 4.90
Prefixes being announced from the LACNIC address blocks: 39335
Unique aggregates announced from the LACNIC address blocks: 19611
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 25.05
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 291
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 482
Number of LACNIC addresses announced to Internet: 98495496
Equivalent to 5 /8s, 222 /16s and 236 /24s
Percentage of available LACNIC address space announced: 65.2
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: 8750
Total AfriNIC prefixes after maximum aggregation: 2106
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6878
Unique aggregates announced from the AfriNIC address blocks: 2173
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31452160
Equivalent to 1 /8s, 223 /16s and 236 /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 1934 11102 682 Korea Telecom (KIX)
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1648 303 88 TPG Internet Pty Ltd
4755 1569 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1201 91 510 Sify Limited
9829 1189 1001 30 BSNL National Internet Backbo
7552 1162 1062 11 Vietel Corporation
24560 1015 384 166 Bharti Airtel Ltd.
18101 947 130 160 Reliance Infocom Ltd Internet
4808 923 1875 267 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
7029 3378 1006 158 Windstream Communications Inc
6389 3374 3807 197 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
1785 1878 680 126 AppliedTheory Corporation
20115 1631 1558 629 Charter Communications
4323 1568 1057 365 Time Warner Telecom
22773 1547 2910 111 Cox Communications, Inc.
30036 1398 252 744 Mediacom Communications Corp
7018 1276 13743 835 AT&T WorldNet Services
11492 1164 212 415 Cable One
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 1804 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 LDCOM NETWORKS
286 1071 854 202 KPNQwest Backbone AS
34984 664 188 172 Tellcom Iletisim Hizmetleri
6830 641 1943 412 UPC Distribution Services
12479 638 653 67 Uni2 Autonomous System
20940 617 200 487 Akamai Technologies European
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 1801 329 130 TVCABLE BOGOTA
28573 1699 1094 58 Types of queries are: POCs, o
8151 1518 2999 330 Uninet S.A. de C.V.
7303 1331 823 185 Telecom Argentina Stet-France
26615 899 672 33 Types of queries are: POCs, o
27947 681 68 108 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
6503 567 418 66 AVANTEL, S.A.
3816 562 240 90 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 1262 958 13 TEDATA
24863 840 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 182 80 8 RAYA Telecom - Egypt
33776 158 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 155 15 16 Ci Telecom Autonomous system
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 3378 1006 158 Windstream Communications Inc
6389 3374 3807 197 bellsouth.net, inc.
18566 2093 383 179 Covad Communications
4766 1934 11102 682 Korea Telecom (KIX)
1785 1878 680 126 AppliedTheory Corporation
8402 1804 544 16 Corbina telecom
10620 1801 329 130 TVCABLE BOGOTA
17974 1744 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1699 1094 58 Types of queries are: POCs, o
7545 1648 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 3374 3177 bellsouth.net, inc.
18566 2093 1914 Covad Communications
8402 1804 1788 Corbina telecom
1785 1878 1752 AppliedTheory Corporation
17974 1744 1708 PT TELEKOMUNIKASI INDONESIA
10620 1801 1671 TVCABLE BOGOTA
28573 1699 1641 Types of queries are: POCs, o
7545 1648 1560 TPG Internet Pty Ltd
22773 1547 1436 Cox Communications, Inc.
2118 1427 1414 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
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /12:235
/13:458 /14:826 /15:1507 /16:12335 /17:6515 /18:10840
/19:21056 /20:29808 /21:29938 /22:40326 /23:37766 /24:211267
/25:68 /26:75 /27:110 /28:277 /29:106 /30:510
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3034 3378 Windstream Communications Inc
6389 2089 3374 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1781 1804 Corbina telecom
10620 1698 1801 TVCABLE BOGOTA
30036 1347 1398 Mediacom Communications Corp
11492 1127 1164 Cable One
8452 1072 1262 TEDATA
1785 1062 1878 AppliedTheory Corporation
7011 1038 1152 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:535 2:796 4:18 6:3 8:396 12:1977
13:1 14:602 15:11 16:3 17:7 20:8
23:144 24:1761 27:1241 31:953 32:124 33:2
34:2 36:8 37:284 38:783 39:4 40:122
41:3008 42:129 44:3 46:1427 47:3 49:348
50:518 52:13 54:5 55:7 56:3 57:45
58:958 59:495 60:278 61:1206 62:989 63:2033
64:4185 65:2286 66:4529 67:2040 68:1343 69:3284
70:946 71:389 72:1810 73:1 74:2640 75:502
76:331 77:967 78:983 79:510 80:1224 81:898
82:642 83:557 84:596 85:1190 86:736 87:913
88:338 89:1578 90:288 91:4618 92:519 93:1492
94:1398 95:1125 96:377 97:316 98:827 99:38
100:6 101:203 103:910 106:64 107:173 108:208
109:1547 110:754 111:880 112:444 113:561 114:640
115:774 116:881 117:723 118:919 119:1207 120:339
121:718 122:1628 123:1092 124:1369 125:1277 128:548
129:191 130:265 131:594 132:170 133:21 134:243
135:63 136:212 137:186 138:275 139:157 140:494
141:241 142:392 143:418 144:499 145:69 146:489
147:253 148:758 149:300 150:158 151:176 152:455
153:171 154:7 155:443 156:212 157:381 158:163
159:521 160:327 161:246 162:343 163:186 164:533
165:414 166:563 167:462 168:802 169:149 170:839
171:121 172:4 173:1734 174:601 175:446 176:417
177:568 178:1289 180:1145 181:73 182:796 183:276
184:449 185:1 186:2117 187:846 188:1061 189:1209
190:5574 192:6019 193:5623 194:4588 195:3689 196:1275
197:176 198:3636 199:4475 200:5763 201:1649 202:8434
203:8629 204:4357 205:2472 206:2761 207:2806 208:4097
209:3625 210:2786 211:1475 212:2027 213:1910 214:858
215:106 216:5061 217:1529 218:542 219:353 220:1236
221:553 222:330 223:325
End of report