Routing Table Report 00:00 GMT Fri 24 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: 402431
Prefixes after maximum aggregation: 171663
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 193693
Total ASes present in the Internet Routing Table: 40208
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32935
Origin ASes announcing only one prefix: 15550
Transit ASes present in the Internet Routing Table: 5265
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5204
Unregistered ASNs in the Routing Table: 148
Number of 32-bit ASNs allocated by the RIRs: 2291
Number of 32-bit ASNs visible in the Routing Table: 2008
Prefixes from 32-bit ASNs in the Routing Table: 4830
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 301
Number of addresses announced to Internet: 2522163165
Equivalent to 150 /8s, 85 /16s and 39 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
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: 169561
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96363
Total APNIC prefixes after maximum aggregation: 30679
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92759
Unique aggregates announced from the APNIC address blocks: 39278
APNIC Region origin ASes present in the Internet Routing Table: 4639
APNIC Prefixes per ASN: 20.00
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 3.9
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: 640083968
Equivalent to 38 /8s, 38 /16s and 232 /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: 151277
Total ARIN prefixes after maximum aggregation: 77796
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122810
Unique aggregates announced from the ARIN address blocks: 49611
ARIN Region origin ASes present in the Internet Routing Table: 14930
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5673
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805447432
Equivalent to 48 /8s, 2 /16s and 39 /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: 101559
Total RIPE prefixes after maximum aggregation: 52878
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92413
Unique aggregates announced from the RIPE address blocks: 56751
RIPE Region origin ASes present in the Internet Routing Table: 16355
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 8024
RIPE Region transit ASes present in the Internet Routing Table: 2545
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1382
Number of RIPE addresses announced to Internet: 501217164
Equivalent to 29 /8s, 223 /16s and 247 /24s
Percentage of available RIPE address space announced: 80.7
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: 39242
Total LACNIC prefixes after maximum aggregation: 8113
LACNIC Deaggregation factor: 4.84
Prefixes being announced from the LACNIC address blocks: 38840
Unique aggregates announced from the LACNIC address blocks: 19541
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.68
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 294
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 455
Number of LACNIC addresses announced to Internet: 96979976
Equivalent to 5 /8s, 199 /16s and 204 /24s
Percentage of available LACNIC address space announced: 64.2
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: 8937
Total AfriNIC prefixes after maximum aggregation: 2105
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6948
Unique aggregates announced from the AfriNIC address blocks: 2116
AfriNIC Region origin ASes present in the Internet Routing Table: 518
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: 120
Average AfriNIC Region AS path length visible: 3.8
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: 31513088
Equivalent to 1 /8s, 224 /16s and 218 /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 1924 11099 678 Korea Telecom (KIX)
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
4755 1558 385 157 Videsh Sanchar Nigam Ltd. Aut
7545 1484 302 86 TPG Internet Pty Ltd
7552 1282 1064 7 Vietel Corporation
9829 1182 997 29 BSNL National Internet Backbo
9583 1126 84 483 Sify Limited
4808 1072 2043 308 CNCGROUP IP network: China169
24560 1020 385 167 Bharti Airtel Ltd.
18101 951 131 156 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 3438 3807 200 bellsouth.net, inc.
7029 3267 1035 168 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1875 680 126 AppliedTheory Corporation
20115 1629 1551 629 Charter Communications
4323 1605 1059 379 Time Warner Telecom
22773 1535 2910 110 Cox Communications, Inc.
30036 1413 253 749 Mediacom Communications Corp
19262 1389 4703 399 Verizon Global Networks
7018 1318 7013 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 1761 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
286 1057 806 200 KPNQwest Backbone AS
34984 658 188 172 Tellcom Iletisim Hizmetleri
6830 644 1927 413 UPC Distribution Services
20940 616 199 479 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 568 360 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 1683 1088 62 Types of queries are: POCs, o
8151 1527 2990 349 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 857 664 33 Types of queries are: POCs, o
27947 663 67 108 Telconet S.A
11172 635 107 74 Alestra
22047 581 322 17 Types of queries are: POCs, o
6503 561 418 67 AVANTEL, S.A.
3816 558 238 91 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 1255 958 13 TEDATA
24863 832 274 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 212 17 10 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
33776 182 12 20 Starcomms Nigeria Limited
16637 160 664 85 Johnnic e-Ventures
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 3438 3807 200 bellsouth.net, inc.
7029 3267 1035 168 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1924 11099 678 Korea Telecom (KIX)
1785 1875 680 126 AppliedTheory Corporation
8402 1761 480 15 Corbina telecom
10620 1751 324 171 TVCABLE BOGOTA
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1683 1088 62 Types of queries are: POCs, o
20115 1629 1551 629 Charter Communications
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 3267 3099 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1875 1749 AppliedTheory Corporation
8402 1761 1746 Corbina telecom
17974 1735 1699 PT TELEKOMUNIKASI INDONESIA
28573 1683 1621 Types of queries are: POCs, o
10620 1751 1580 TVCABLE BOGOTA
22773 1535 1425 Cox Communications, Inc.
4755 1558 1401 Videsh Sanchar Nigam Ltd. Aut
7545 1484 1398 TPG Internet Pty Ltd
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 7018 AT&T WorldNet Servic
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 /8:20 /9:12 /10:28 /11:81 /12:232
/13:459 /14:816 /15:1506 /16:12308 /17:6490 /18:10767
/19:21039 /20:29670 /21:29743 /22:40214 /23:37514 /24:209901
/25:67 /26:81 /27:108 /28:280 /29:105 /30:522
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2907 3267 Windstream Communications Inc
6389 2109 3438 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1740 1761 Corbina telecom
10620 1648 1751 TVCABLE BOGOTA
30036 1363 1413 Mediacom Communications Corp
11492 1122 1159 Cable One
1785 1063 1875 AppliedTheory Corporation
8452 1063 1255 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)
----------------------------------------------
1:506 2:727 4:18 6:3 8:389 12:1965
13:1 14:606 15:11 16:3 17:7 20:8
23:134 24:1745 27:1190 31:946 32:124 33:2
34:2 36:9 37:200 38:784 39:4 40:116
41:3101 42:113 43:1 44:3 46:1330 47:3
49:335 50:511 52:13 54:2 55:9 56:3
57:46 58:971 59:494 60:341 61:1206 62:979
63:2022 64:4143 65:2287 66:4483 67:2067 68:1359
69:3276 70:955 71:407 72:1821 73:1 74:2711
75:483 76:332 77:973 78:967 79:522 80:1226
81:886 82:642 83:530 84:596 85:1156 86:734
87:922 88:350 89:1574 90:283 91:4509 92:512
93:1354 94:1394 95:1116 96:422 97:312 98:839
99:38 100:4 101:273 103:835 106:66 107:161
108:179 109:1552 110:733 111:857 112:439 113:542
114:615 115:768 116:887 117:724 118:919 119:1263
120:366 121:714 122:1628 123:1065 124:1391 125:1325
128:538 129:193 130:220 131:592 132:162 133:21
134:236 135:62 136:214 137:182 138:287 139:157
140:492 141:261 142:394 143:409 144:516 145:69
146:487 147:248 148:767 149:301 150:163 151:198
152:448 153:171 154:8 155:410 156:212 157:372
158:163 159:517 160:321 161:241 162:342 163:187
164:531 165:413 166:559 167:459 168:766 169:149
170:838 171:117 172:4 173:1738 174:606 175:442
176:509 177:493 178:1270 180:1209 181:68 182:750
183:280 184:433 185:1 186:2012 187:852 188:1081
189:1180 190:5485 192:6011 193:5567 194:4371 195:3448
196:1297 197:166 198:3637 199:4427 200:5718 201:1736
202:8463 203:8683 204:4367 205:2446 206:2758 207:2802
208:4095 209:3579 210:2786 211:1488 212:2073 213:1854
214:853 215:102 216:5045 217:1510 218:553 219:337
220:1228 221:563 222:347 223:314
End of report
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