Routing Table Report 00:00 GMT Wed 18 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: 412232
Prefixes after maximum aggregation: 174127
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 197305
Total ASes present in the Internet Routing Table: 40779
Prefixes per ASN: 10.11
Origin-only ASes present in the Internet Routing Table: 33025
Origin ASes announcing only one prefix: 15627
Transit ASes present in the Internet Routing Table: 5512
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: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6020
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 2584
Number of 32-bit ASNs visible in the Routing Table: 2242
Prefixes from 32-bit ASNs in the Routing Table: 5588
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2538244956
Equivalent to 151 /8s, 74 /16s and 139 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 175323
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97747
Total APNIC prefixes after maximum aggregation: 31201
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94290
Unique aggregates announced from the APNIC address blocks: 39594
APNIC Region origin ASes present in the Internet Routing Table: 4665
APNIC Prefixes per ASN: 20.21
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 750
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: 184
Number of APNIC addresses announced to Internet: 643758344
Equivalent to 38 /8s, 94 /16s and 249 /24s
Percentage of available APNIC address space announced: 81.6
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: 152897
Total ARIN prefixes after maximum aggregation: 78519
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123884
Unique aggregates announced from the ARIN address blocks: 50269
ARIN Region origin ASes present in the Internet Routing Table: 15058
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5718
ARIN Region transit ASes present in the Internet Routing Table: 1576
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807278080
Equivalent to 48 /8s, 30 /16s and 22 /24s
Percentage of available ARIN address space announced: 64.2
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: 104878
Total RIPE prefixes after maximum aggregation: 53863
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 95888
Unique aggregates announced from the RIPE address blocks: 58180
RIPE Region origin ASes present in the Internet Routing Table: 16517
RIPE Prefixes per ASN: 5.81
RIPE Region origin ASes announcing only one prefix: 8051
RIPE Region transit ASes present in the Internet Routing Table: 2664
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1507
Number of RIPE addresses announced to Internet: 509681036
Equivalent to 30 /8s, 97 /16s and 29 /24s
Percentage of available RIPE address space announced: 82.1
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: 41328
Total LACNIC prefixes after maximum aggregation: 8326
LACNIC Deaggregation factor: 4.96
Prefixes being announced from the LACNIC address blocks: 41115
Unique aggregates announced from the LACNIC address blocks: 20100
LACNIC Region origin ASes present in the Internet Routing Table: 1584
LACNIC Prefixes per ASN: 25.96
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 299
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 529
Number of LACNIC addresses announced to Internet: 99419400
Equivalent to 5 /8s, 237 /16s and 5 /24s
Percentage of available LACNIC address space announced: 65.8
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: 9582
Total AfriNIC prefixes after maximum aggregation: 2149
AfriNIC Deaggregation factor: 4.46
Prefixes being announced from the AfriNIC address blocks: 7623
Unique aggregates announced from the AfriNIC address blocks: 2176
AfriNIC Region origin ASes present in the Internet Routing Table: 536
AfriNIC Prefixes per ASN: 14.22
AfriNIC Region origin ASes announcing only one prefix: 168
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: 5
Number of AfriNIC addresses announced to Internet: 31694080
Equivalent to 1 /8s, 227 /16s and 157 /24s
Percentage of available AfriNIC address space announced: 47.2
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 1923 11108 694 Korea Telecom (KIX)
17974 1801 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1666 301 89 TPG Internet Pty Ltd
4755 1591 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1244 94 540 Sify Limited
9829 1238 1045 31 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
4808 1069 2026 311 CNCGROUP IP network: China169
24560 1024 385 165 Bharti Airtel Ltd.
18101 946 131 159 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 3427 3807 195 bellsouth.net, inc.
7029 3279 1020 169 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1903 680 129 AppliedTheory Corporation
20115 1644 1565 620 Charter Communications
4323 1597 1060 381 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1431 261 748 Mediacom Communications Corp
7018 1290 13888 831 AT&T WorldNet Services
11492 1186 216 364 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 1751 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
15557 1103 2247 54 LDCOM NETWORKS
286 1059 853 198 KPNQwest Backbone AS
34984 681 188 175 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 675 664 63 Uni2 Autonomous System
6830 658 2215 427 UPC Distribution Services
20940 637 206 502 Akamai Technologies European
8551 597 360 81 Bezeq International
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 1809 327 176 TVCABLE BOGOTA
28573 1790 1107 59 Types of queries are: POCs, o
6503 1544 418 67 AVANTEL, S.A.
8151 1461 3002 328 Uninet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 689 74 98 Telconet S.A
11172 638 107 74 Alestra
22047 582 326 15 Types of queries are: POCs, o
3816 572 242 100 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 1303 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
16284 535 4 13 GST-N Autonomous System
6713 490 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 YEBO-AS
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
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 3427 3807 195 bellsouth.net, inc.
7029 3279 1020 169 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1923 11108 694 Korea Telecom (KIX)
1785 1903 680 129 AppliedTheory Corporation
10620 1809 327 176 TVCABLE BOGOTA
17974 1801 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1790 1107 59 Types of queries are: POCs, o
8402 1751 544 16 Corbina telecom
7545 1666 301 89 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 3279 3110 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1903 1774 AppliedTheory Corporation
17974 1801 1738 PT TELEKOMUNIKASI INDONESIA
8402 1751 1735 Corbina telecom
28573 1790 1731 Types of queries are: POCs, o
10620 1809 1633 TVCABLE BOGOTA
7545 1666 1577 TPG Internet Pty Ltd
6503 1544 1477 AVANTEL, S.A.
22773 1576 1465 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
23456 UNALLOCATED 8.10.2.0/24 3257 Tiscali Intl Network
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
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 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
10.29.245.28/32 286 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
27.112.114.0/24 23884 Proimage Engineering and Comm
37.235.96.0/20 39392 SuperNetwork s.r.o.
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 /14:839 /15:1522 /16:12362 /17:6554 /18:10919
/19:21223 /20:30115 /21:30351 /22:41067 /23:38442 /24:215945
/25:89 /26:98 /27:111 /28:292 /29:254 /30:726
/31:20 /32:468
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2933 3279 Windstream Communications Inc
6389 2145 3427 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1728 1751 Corbina telecom
10620 1695 1809 TVCABLE BOGOTA
30036 1377 1431 Mediacom Communications Corp
6503 1300 1544 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1111 1303 TEDATA
1785 1069 1903 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:538 2:707 4:18 6:3 8:404 12:2004
13:1 14:605 15:12 16:3 17:7 20:22
23:163 24:1777 27:1273 31:1010 32:119 33:2
34:2 36:8 37:355 38:799 39:4 40:120
41:3208 42:136 44:3 46:1507 47:3 49:388
50:540 52:13 54:7 55:10 56:3 57:39
58:965 59:519 60:281 61:1278 62:990 63:2007
64:4207 65:2256 66:4528 67:2051 68:1337 69:3274
70:954 71:488 72:1852 73:1 74:2657 75:508
76:331 77:969 78:1009 79:507 80:1260 81:914
82:682 83:552 84:612 85:1217 86:766 87:934
88:358 89:1651 90:298 91:4754 92:527 93:1551
94:1481 95:1158 96:363 97:319 98:943 99:37
100:7 101:179 103:1000 106:104 107:187 108:231
109:1666 110:768 111:927 112:457 113:597 114:632
115:881 116:910 117:717 118:923 119:1233 120:353
121:822 122:1674 123:1097 124:1378 125:1266 128:563
129:197 130:255 131:596 132:173 133:21 134:246
135:62 136:212 137:177 138:355 139:160 140:493
141:246 142:388 143:412 144:518 145:69 146:501
147:302 148:805 149:302 150:160 151:176 152:464
153:172 154:8 155:446 156:215 157:382 158:178
159:523 160:338 161:259 162:353 163:190 164:572
165:412 166:571 167:464 168:819 169:128 170:860
171:127 172:4 173:1768 174:609 175:443 176:489
177:671 178:1342 180:1212 181:73 182:809 183:286
184:457 185:1 186:2222 187:1039 188:1193 189:1801
190:5554 192:6040 193:5577 194:4671 195:3664 196:1300
197:128 198:3673 199:4516 200:5816 201:1934 202:8543
203:8653 204:4354 205:2504 206:2777 207:2822 208:4077
209:3643 210:2784 211:1492 212:2065 213:1920 214:843
215:104 216:5120 217:1549 218:548 219:359 220:1238
221:557 222:329 223:334
End of report
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