Routing Table Report 00:00 GMT Thu 12 Apr, 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: 408817
Prefixes after maximum aggregation: 173527
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 196647
Total ASes present in the Internet Routing Table: 40704
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 33037
Origin ASes announcing only one prefix: 15477
Transit ASes present in the Internet Routing Table: 5454
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 6256
Unregistered ASNs in the Routing Table: 352
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 2213
Prefixes from 32-bit ASNs in the Routing Table: 5464
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1544
Number of addresses announced to Internet: 2535347541
Equivalent to 151 /8s, 30 /16s and 85 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
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: 172173
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97422
Total APNIC prefixes after maximum aggregation: 31152
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 93922
Unique aggregates announced from the APNIC address blocks: 39427
APNIC Region origin ASes present in the Internet Routing Table: 4667
APNIC Prefixes per ASN: 20.12
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 743
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 178
Number of APNIC addresses announced to Internet: 642919168
Equivalent to 38 /8s, 82 /16s and 43 /24s
Percentage of available APNIC address space announced: 81.5
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: 152217
Total ARIN prefixes after maximum aggregation: 78176
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123211
Unique aggregates announced from the ARIN address blocks: 49983
ARIN Region origin ASes present in the Internet Routing Table: 14968
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5666
ARIN Region transit ASes present in the Internet Routing Table: 1569
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805778176
Equivalent to 48 /8s, 7 /16s and 51 /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: 103087
Total RIPE prefixes after maximum aggregation: 53561
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 93385
Unique aggregates announced from the RIPE address blocks: 57280
RIPE Region origin ASes present in the Internet Routing Table: 16374
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7950
RIPE Region transit ASes present in the Internet Routing Table: 2625
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1492
Number of RIPE addresses announced to Internet: 502512268
Equivalent to 29 /8s, 243 /16s and 186 /24s
Percentage of available RIPE address space announced: 81.0
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: 41059
Total LACNIC prefixes after maximum aggregation: 8183
LACNIC Deaggregation factor: 5.02
Prefixes being announced from the LACNIC address blocks: 40616
Unique aggregates announced from the LACNIC address blocks: 19763
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 25.79
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 297
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 521
Number of LACNIC addresses announced to Internet: 99047176
Equivalent to 5 /8s, 231 /16s and 87 /24s
Percentage of available LACNIC address space announced: 65.6
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: 8989
Total AfriNIC prefixes after maximum aggregation: 2141
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 7034
Unique aggregates announced from the AfriNIC address blocks: 2167
AfriNIC Region origin ASes present in the Internet Routing Table: 528
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31535616
Equivalent to 1 /8s, 225 /16s and 50 /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 1922 11108 694 Korea Telecom (KIX)
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1653 301 87 TPG Internet Pty Ltd
4755 1588 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1244 94 540 Sify Limited
9829 1232 1041 30 BSNL National Internet Backbo
7552 1172 1062 11 Vietel Corporation
24560 1023 385 167 Bharti Airtel Ltd.
4808 1008 1942 286 CNCGROUP IP network: China169
18101 945 131 159 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 3431 3807 195 bellsouth.net, inc.
7029 3417 1015 166 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1896 680 128 AppliedTheory Corporation
20115 1641 1563 618 Charter Communications
4323 1592 1059 378 Time Warner Telecom
22773 1575 2910 111 Cox Communications, Inc.
30036 1443 263 758 Mediacom Communications Corp
7018 1280 9791 830 AT&T WorldNet Services
11492 1185 216 365 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 1748 544 16 Corbina telecom
2118 1279 97 14 EUnet/RELCOM Autonomous Syste
286 1066 853 199 KPNQwest Backbone AS
34984 680 188 176 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 653 657 60 Uni2 Autonomous System
6830 640 1943 411 UPC Distribution Services
20940 630 203 494 Akamai Technologies European
8551 577 360 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 1811 327 162 TVCABLE BOGOTA
28573 1773 1106 60 Types of queries are: POCs, o
6503 1544 418 67 AVANTEL, S.A.
8151 1530 2999 323 Uninet S.A. de C.V.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 687 74 99 Telconet S.A
11172 638 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 575 242 100 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 1311 958 13 TEDATA
24863 844 274 33 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 YEBO-AS
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
33776 167 12 22 Starcomms Nigeria Limited
16637 163 666 86 Johnnic e-Ventures
29571 161 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
6389 3431 3807 195 bellsouth.net, inc.
7029 3417 1015 166 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1922 11108 694 Korea Telecom (KIX)
1785 1896 680 128 AppliedTheory Corporation
10620 1811 327 162 TVCABLE BOGOTA
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1773 1106 60 Types of queries are: POCs, o
8402 1748 544 16 Corbina telecom
7545 1653 301 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 3417 3251 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1896 1768 AppliedTheory Corporation
8402 1748 1732 Corbina telecom
17974 1788 1725 PT TELEKOMUNIKASI INDONESIA
28573 1773 1713 Types of queries are: POCs, o
10620 1811 1649 TVCABLE BOGOTA
7545 1653 1566 TPG Internet Pty Ltd
6503 1544 1477 AVANTEL, S.A.
22773 1575 1464 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54601 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54603 UNALLOCATED 8.18.203.0/24 14743 Internap Network Ser
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
54475 UNALLOCATED 8.34.8.0/24 36295 Brevard Wireless
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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
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
/13:460 /14:837 /15:1518 /16:12332 /17:6541 /18:10894
/19:21159 /20:30009 /21:30243 /22:40902 /23:38258 /24:213689
/25:69 /26:75 /27:107 /28:271 /29:99 /30:496
/31:20 /32:463
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3062 3417 Windstream Communications Inc
6389 2149 3431 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1725 1748 Corbina telecom
10620 1703 1811 TVCABLE BOGOTA
30036 1383 1443 Mediacom Communications Corp
6503 1300 1544 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1119 1311 TEDATA
1785 1067 1896 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:674 4:18 6:3 8:398 12:2003
13:1 14:604 15:12 16:3 17:7 20:8
23:158 24:1777 27:1268 31:999 32:120 33:2
34:2 36:8 37:343 38:796 39:4 40:120
41:3109 42:132 44:3 46:1470 47:3 49:388
50:538 52:13 54:7 55:9 56:3 57:39
58:964 59:518 60:280 61:1279 62:991 63:2009
64:4154 65:2255 66:4523 67:2057 68:1334 69:3271
70:954 71:470 72:1847 73:1 74:2651 75:509
76:327 77:965 78:1006 79:504 80:1209 81:907
82:672 83:544 84:503 85:1212 86:431 87:929
88:354 89:1638 90:297 91:4721 92:523 93:1442
94:1476 95:1151 96:363 97:319 98:898 99:37
100:7 101:172 103:973 106:105 107:183 108:226
109:1309 110:763 111:919 112:449 113:594 114:630
115:855 116:907 117:723 118:913 119:1211 120:346
121:830 122:1669 123:1112 124:1376 125:1257 128:561
129:194 130:258 131:599 132:173 133:21 134:247
135:62 136:212 137:177 138:354 139:148 140:493
141:245 142:389 143:404 144:520 145:69 146:489
147:286 148:798 149:299 150:160 151:176 152:464
153:172 154:7 155:447 156:216 157:381 158:175
159:523 160:342 161:259 162:350 163:190 164:572
165:411 166:571 167:464 168:813 169:127 170:846
171:127 172:4 173:1741 174:577 175:440 176:480
177:656 178:1323 180:1179 181:73 182:797 183:285
184:455 185:1 186:2196 187:1013 188:1188 189:1800
190:5491 192:6031 193:5555 194:4636 195:3615 196:1295
197:127 198:3645 199:4499 200:5813 201:1918 202:8519
203:8611 204:4351 205:2481 206:2772 207:2817 208:4071
209:3613 210:2783 211:1490 212:2045 213:1914 214:892
215:109 216:5101 217:1542 218:545 219:359 220:1232
221:557 222:329 223:330
End of report
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