Routing Table Report 00:00 GMT Mon 05 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: 403032
Prefixes after maximum aggregation: 171775
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 187822
Total ASes present in the Internet Routing Table: 40318
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32819
Origin ASes announcing only one prefix: 15538
Transit ASes present in the Internet Routing Table: 5451
Transit-only ASes present in the Internet Routing Table: 150
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5403
Unregistered ASNs in the Routing Table: 189
Number of 32-bit ASNs allocated by the RIRs: 2307
Number of 32-bit ASNs visible in the Routing Table: 2048
Prefixes from 32-bit ASNs in the Routing Table: 4916
Special use prefixes present in the Routing Table: 89
Prefixes being announced from unallocated address space: 449
Number of addresses announced to Internet: 2346750426
Equivalent to 139 /8s, 224 /16s and 145 /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: 169791
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96347
Total APNIC prefixes after maximum aggregation: 30848
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 92780
Unique aggregates announced from the APNIC address blocks: 37850
APNIC Region origin ASes present in the Internet Routing Table: 4645
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1243
APNIC Region transit ASes present in the Internet Routing Table: 748
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: 158
Number of APNIC addresses announced to Internet: 623531264
Equivalent to 37 /8s, 42 /16s and 85 /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: 151213
Total ARIN prefixes after maximum aggregation: 77661
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122714
Unique aggregates announced from the ARIN address blocks: 46720
ARIN Region origin ASes present in the Internet Routing Table: 14953
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5690
ARIN Region transit ASes present in the Internet Routing Table: 1569
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 667092736
Equivalent to 39 /8s, 195 /16s and 7 /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: 101984
Total RIPE prefixes after maximum aggregation: 52968
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 92712
Unique aggregates announced from the RIPE address blocks: 54898
RIPE Region origin ASes present in the Internet Routing Table: 16355
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 7999
RIPE Region transit ASes present in the Internet Routing Table: 2628
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1401
Number of RIPE addresses announced to Internet: 480621196
Equivalent to 28 /8s, 165 /16s and 178 /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: 39485
Total LACNIC prefixes after maximum aggregation: 8087
LACNIC Deaggregation factor: 4.88
Prefixes being announced from the LACNIC address blocks: 39153
Unique aggregates announced from the LACNIC address blocks: 19675
LACNIC Region origin ASes present in the Internet Routing Table: 1576
LACNIC Prefixes per ASN: 24.84
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 292
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 470
Number of LACNIC addresses announced to Internet: 97919752
Equivalent to 5 /8s, 214 /16s and 35 /24s
Percentage of available LACNIC address space announced: 64.8
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: 8754
Total AfriNIC prefixes after maximum aggregation: 2100
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6822
Unique aggregates announced from the AfriNIC address blocks: 2149
AfriNIC Region origin ASes present in the Internet Routing Table: 519
AfriNIC Prefixes per ASN: 13.14
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 123
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 31574528
Equivalent to 1 /8s, 225 /16s and 202 /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 1643 303 88 TPG Internet Pty Ltd
4755 1562 386 160 Videsh Sanchar Nigam Ltd. Aut
9583 1199 91 508 Sify Limited
9829 1182 997 29 BSNL National Internet Backbo
7552 1159 1062 11 Vietel Corporation
24560 1013 385 167 Bharti Airtel Ltd.
18101 949 130 155 Reliance Infocom Ltd Internet
4808 920 1874 264 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 3418 3807 201 bellsouth.net, inc.
7029 3414 1014 159 Windstream Communications Inc
18566 2090 382 177 Covad Communications
1785 1872 680 126 AppliedTheory Corporation
20115 1631 1550 632 Charter Communications
4323 1550 1007 359 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 1284 6834 842 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 1820 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 LDCOM NETWORKS
286 1062 806 203 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 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 1759 325 169 TVCABLE BOGOTA
28573 1690 1089 60 Types of queries are: POCs, o
8151 1520 3012 341 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 868 672 33 Types of queries are: POCs, o
27947 674 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 562 240 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 1248 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
12258 197 28 62 YEBO-AS
29571 184 16 10 Ci Telecom Autonomous system
24835 181 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
33776 152 12 19 Starcomms Nigeria 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 3418 3807 201 bellsouth.net, inc.
7029 3414 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 1820 544 16 Corbina telecom
10620 1759 325 169 TVCABLE BOGOTA
17974 1734 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1690 1089 60 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
7029 3414 3255 Windstream Communications Inc
18566 2090 1913 Covad Communications
8402 1820 1804 Corbina telecom
1785 1872 1746 AppliedTheory Corporation
17974 1734 1697 PT TELEKOMUNIKASI INDONESIA
28573 1690 1630 Types of queries are: POCs, o
10620 1759 1590 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
10.0.1.0/24 286 KPNQwest Backbone AS
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
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 /16:12322 /17:6498 /18:10789
/19:21007 /20:29702 /21:29725 /22:40212 /23:37638 /24:210381
/25:65 /26:75 /27:107 /28:274 /29:100 /30:508
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3069 3414 Windstream Communications Inc
6389 2103 3418 bellsouth.net, inc.
18566 2039 2090 Covad Communications
8402 1798 1820 Corbina telecom
10620 1656 1759 TVCABLE BOGOTA
30036 1358 1408 Mediacom Communications Corp
11492 1124 1161 Cable One
1785 1060 1872 AppliedTheory Corporation
8452 1058 1248 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 2:780 4:18 6:3 8:393 10:1
12:1963 13:1 14:612 15:11 16:3 17:7
20:8 23:136 24:1747 27:1207 31:987 32:124
33:2 34:2 36:10 37:221 38:781 39:4
40:116 41:2975 42:121 44:3 46:1387 47:3
49:342 50:513 52:13 54:5 55:9 56:3
57:47 58:976 59:494 60:288 61:1198 62:986
63:2026 64:4131 65:2284 66:4489 67:2076 68:1350
69:3269 70:955 71:410 72:1822 73:1 74:2698
75:483 76:332 77:978 78:970 79:494 80:1216
81:891 82:638 83:543 84:598 85:1162 86:738
87:920 88:350 89:1580 90:284 91:4552 92:516
93:1382 94:1377 95:1121 96:424 97:315 98:803
99:38 100:5 101:227 103:872 106:64 107:167
108:185 109:1542 110:748 111:867 112:440 113:547
114:621 115:786 116:887 117:724 118:918 119:1260
120:367 121:712 122:1614 123:1087 124:1394 125:1322
128:541 129:194 130:266 131:591 132:165 133:21
134:236 135:61 136:212 137:184 138:271 139:155
140:489 141:266 142:393 143:416 144:512 145:69
146:485 147:253 148:759 149:300 150:160 151:198
152:448 153:171 154:7 155:393 156:213 157:372
158:162 159:518 160:323 161:245 162:343 163:187
164:530 165:415 166:563 167:460 168:808 169:149
170:839 171:119 172:4 173:1727 174:586 175:444
176:527 177:537 178:1286 180:1216 181:68 182:777
183:285 184:438 185:1 186:2058 187:858 188:1054
189:1202 190:5542 192:6015 193:5600 194:4381 195:3458
196:1287 197:167 198:3641 199:4444 200:5746 201:1751
202:8426 203:8721 204:4355 205:2448 206:2762 207:2802
208:4072 209:3593 210:2788 211:1488 212:2039 213:1890
214:830 215:91 216:5050 217:1517 218:551 219:333
220:1237 221:565 222:345 223:319
End of report