Routing Table Report 00:00 GMT Tue 28 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: 402545
Prefixes after maximum aggregation: 171633
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 193958
Total ASes present in the Internet Routing Table: 40254
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32915
Origin ASes announcing only one prefix: 15555
Transit ASes present in the Internet Routing Table: 5317
Transit-only ASes present in the Internet Routing Table: 138
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: 5247
Unregistered ASNs in the Routing Table: 158
Number of 32-bit ASNs allocated by the RIRs: 2297
Number of 32-bit ASNs visible in the Routing Table: 2022
Prefixes from 32-bit ASNs in the Routing Table: 4863
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 352
Number of addresses announced to Internet: 2522428385
Equivalent to 150 /8s, 89 /16s and 51 /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: 169596
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96218
Total APNIC prefixes after maximum aggregation: 30751
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92746
Unique aggregates announced from the APNIC address blocks: 39370
APNIC Region origin ASes present in the Internet Routing Table: 4639
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1237
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: 151
Number of APNIC addresses announced to Internet: 640064000
Equivalent to 38 /8s, 38 /16s and 154 /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: 151261
Total ARIN prefixes after maximum aggregation: 77653
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122794
Unique aggregates announced from the ARIN address blocks: 49616
ARIN Region origin ASes present in the Internet Routing Table: 14950
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5691
ARIN Region transit ASes present in the Internet Routing Table: 1523
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: 101827
Total RIPE prefixes after maximum aggregation: 52918
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92654
Unique aggregates announced from the RIPE address blocks: 56776
RIPE Region origin ASes present in the Internet Routing Table: 16361
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8018
RIPE Region transit ASes present in the Internet Routing Table: 2572
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: 1394
Number of RIPE addresses announced to Internet: 501299596
Equivalent to 29 /8s, 225 /16s and 57 /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: 39375
Total LACNIC prefixes after maximum aggregation: 8127
LACNIC Deaggregation factor: 4.84
Prefixes being announced from the LACNIC address blocks: 38988
Unique aggregates announced from the LACNIC address blocks: 19611
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 24.75
LACNIC Region origin ASes announcing only one prefix: 446
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: 458
Number of LACNIC addresses announced to Internet: 97434120
Equivalent to 5 /8s, 206 /16s and 186 /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: 8770
Total AfriNIC prefixes after maximum aggregation: 2089
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6773
Unique aggregates announced from the AfriNIC address blocks: 2118
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.28
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 31500288
Equivalent to 1 /8s, 224 /16s and 168 /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 1639 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 1131 84 482 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 3433 3807 200 bellsouth.net, inc.
7029 3433 1028 167 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1874 680 127 AppliedTheory Corporation
20115 1630 1551 629 Charter Communications
4323 1607 1075 381 Time Warner Telecom
22773 1536 2910 110 Cox Communications, Inc.
30036 1405 252 744 Mediacom Communications Corp
19262 1388 4703 398 Verizon Global Networks
7018 1315 6997 857 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 1782 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 656 188 173 Tellcom Iletisim Hizmetleri
6830 645 1927 414 UPC Distribution Services
20940 624 203 484 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 2992 351 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 658 67 107 Telconet S.A
11172 632 91 72 Alestra
6503 585 418 67 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
3816 560 240 92 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 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 3433 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 1782 480 15 Corbina telecom
10620 1755 324 173 TVCABLE BOGOTA
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1688 1088 63 Types of queries are: POCs, o
7545 1639 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 3433 3266 Windstream Communications Inc
18566 2093 1916 Covad Communications
8402 1782 1767 Corbina telecom
1785 1874 1747 AppliedTheory Corporation
17974 1735 1699 PT TELEKOMUNIKASI INDONESIA
28573 1688 1625 Types of queries are: POCs, o
10620 1755 1582 TVCABLE BOGOTA
7545 1639 1552 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
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
23.27.0.0/16 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 /8:20 /9:12 /10:28 /11:81 /12:232
/13:459 /14:822 /15:1504 /16:12310 /17:6488 /18:10749
/19:21016 /20:29639 /21:29715 /22:40134 /23:37558 /24:210150
/25:67 /26:76 /27:109 /28:279 /29:106 /30:523
/31:18 /32:450
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3076 3433 Windstream Communications Inc
6389 2106 3433 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1761 1782 Corbina telecom
10620 1652 1755 TVCABLE BOGOTA
30036 1355 1405 Mediacom Communications Corp
11492 1122 1159 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)
----------------------------------------------
1:517 2:755 4:18 6:3 8:391 12:1968
13:1 14:608 15:11 16:3 17:7 20:8
23:134 24:1745 27:1199 31:948 32:124 33:2
34:2 36:9 37:208 38:782 39:4 40:116
41:2986 42:114 44:3 46:1360 47:3 49:341
50:513 52:13 54:3 55:7 56:3 57:45
58:974 59:494 60:347 61:1199 62:973 63:2027
64:4145 65:2282 66:4493 67:2072 68:1357 69:3280
70:955 71:407 72:1822 73:1 74:2699 75:483
76:331 77:1002 78:971 79:500 80:1225 81:885
82:641 83:543 84:600 85:1164 86:736 87:922
88:350 89:1575 90:284 91:4533 92:512 93:1371
94:1393 95:1119 96:425 97:312 98:832 99:38
100:4 101:248 103:850 106:66 107:163 108:182
109:1552 110:748 111:857 112:439 113:552 114:616
115:784 116:887 117:724 118:917 119:1258 120:366
121:714 122:1632 123:1089 124:1392 125:1325 128:536
129:193 130:229 131:592 132:164 133:21 134:236
135:62 136:214 137:184 138:268 139:157 140:468
141:263 142:395 143:419 144:515 145:69 146:486
147:252 148:767 149:300 150:162 151:198 152:448
153:171 154:7 155:415 156:213 157:372 158:164
159:514 160:321 161:245 162:342 163:182 164:531
165:413 166:559 167:458 168:772 169:149 170:838
171:119 172:4 173:1740 174:604 175:443 176:514
177:531 178:1286 180:1210 181:68 182:757 183:283
184:435 185:1 186:2059 187:863 188:1084 189:1210
190:5473 192:6005 193:5572 194:4369 195:3447 196:1298
197:165 198:3636 199:4432 200:5721 201:1745 202:8453
203:8708 204:4369 205:2452 206:2762 207:2794 208:4086
209:3577 210:2781 211:1490 212:2070 213:1851 214:835
215:101 216:5036 217:1511 218:553 219:332 220:1235
221:563 222:347 223:313
End of report
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