BGP Routing: 2012-04-15

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, April 21, 2012

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 22 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: 412721
Prefixes after maximum aggregation: 174235
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 190871
Total ASes present in the Internet Routing Table: 40850
Prefixes per ASN: 10.10
Origin-only ASes present in the Internet Routing Table: 33072
Origin ASes announcing only one prefix: 15652
Transit ASes present in the Internet Routing Table: 5525
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 30
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 6109
Unregistered ASNs in the Routing Table: 153
Number of 32-bit ASNs allocated by the RIRs: 2615
Number of 32-bit ASNs visible in the Routing Table: 2253
Prefixes from 32-bit ASNs in the Routing Table: 5654
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2360539482
Equivalent to 140 /8s, 178 /16s and 249 /24s
Percentage of available address space announced: 63.7
Percentage of allocated address space announced: 63.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 175481

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 97827
Total APNIC prefixes after maximum aggregation: 31158
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 94383
Unique aggregates announced from the APNIC address blocks: 38092
APNIC Region origin ASes present in the Internet Routing Table: 4675
APNIC Prefixes per ASN: 20.19
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 750
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 186
Number of APNIC addresses announced to Internet: 626670088
Equivalent to 37 /8s, 90 /16s and 58 /24s
Percentage of available APNIC address space announced: 79.5

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: 153015
Total ARIN prefixes after maximum aggregation: 78576
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123928
Unique aggregates announced from the ARIN address blocks: 47289
ARIN Region origin ASes present in the Internet Routing Table: 15080
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5738
ARIN Region transit ASes present in the Internet Routing Table: 1598
Average ARIN Region AS path length visible: 4.0
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: 668624640
Equivalent to 39 /8s, 218 /16s and 103 /24s
Percentage of available ARIN address space announced: 53.1

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: 104983
Total RIPE prefixes after maximum aggregation: 54009
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 96034
Unique aggregates announced from the RIPE address blocks: 56140
RIPE Region origin ASes present in the Internet Routing Table: 16533
RIPE Prefixes per ASN: 5.81
RIPE Region origin ASes announcing only one prefix: 8046
RIPE Region transit ASes present in the Internet Routing Table: 2652
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1516
Number of RIPE addresses announced to Internet: 487484044
Equivalent to 29 /8s, 14 /16s and 106 /24s
Percentage of available RIPE address space announced: 78.5

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: 41380
Total LACNIC prefixes after maximum aggregation: 8259
LACNIC Deaggregation factor: 5.01
Prefixes being announced from the LACNIC address blocks: 41193
Unique aggregates announced from the LACNIC address blocks: 20198
LACNIC Region origin ASes present in the Internet Routing Table: 1591
LACNIC Prefixes per ASN: 25.89
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 301
Average LACNIC Region AS path length visible: 4.4
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: 99412488
Equivalent to 5 /8s, 236 /16s and 234 /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: 9631
Total AfriNIC prefixes after maximum aggregation: 2157
AfriNIC Deaggregation factor: 4.46
Prefixes being announced from the AfriNIC address blocks: 7675
Unique aggregates announced from the AfriNIC address blocks: 2191
AfriNIC Region origin ASes present in the Internet Routing Table: 541
AfriNIC Prefixes per ASN: 14.19
AfriNIC Region origin ASes announcing only one prefix: 170
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31802624
Equivalent to 1 /8s, 229 /16s and 69 /24s
Percentage of available AfriNIC address space announced: 47.4

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 1929 11105 693 Korea Telecom (KIX)
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1670 301 88 TPG Internet Pty Ltd
4755 1587 388 166 Videsh Sanchar Nigam Ltd. Aut
9829 1249 1069 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
9583 1145 85 490 Sify Limited
4808 1031 2007 301 CNCGROUP IP network: China169
24560 1024 385 167 Bharti Airtel Ltd.
9498 949 291 64 BHARTI Airtel Ltd.

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 3426 3807 195 bellsouth.net, inc.
7029 3409 1016 169 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1902 680 129 AppliedTheory Corporation
20115 1642 1566 620 Charter Communications
4323 1591 1059 378 Time Warner Telecom
22773 1577 2910 112 Cox Communications, Inc.
30036 1421 259 750 Mediacom Communications Corp
7018 1263 9791 822 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 1682 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
15557 1158 2247 55 LDCOM NETWORKS
286 1054 852 198 KPNQwest Backbone AS
31148 680 37 9 FreeNet ISP
34984 680 188 174 Tellcom Iletisim Hizmetleri
6830 658 2215 427 UPC Distribution Services
12479 647 666 63 Uni2 Autonomous System
20940 643 207 504 Akamai Technologies European
8551 598 360 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 1810 327 176 TVCABLE BOGOTA
28573 1787 1107 59 Types of queries are: POCs, o
6503 1542 418 67 AVANTEL, S.A.
8151 1538 3016 331 Uninet S.A. de C.V.
7303 1363 829 188 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 689 74 98 Telconet S.A
11172 641 107 74 Alestra
22047 582 326 15 Types of queries are: POCs, o
3816 577 242 100 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 1316 958 13 TEDATA
24863 849 274 33 LINKdotNET AS number
16284 538 4 13 GST-N Autonomous System
6713 492 649 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 180 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 86 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 3426 3807 195 bellsouth.net, inc.
7029 3409 1016 169 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1929 11105 693 Korea Telecom (KIX)
1785 1902 680 129 AppliedTheory Corporation
10620 1810 327 176 TVCABLE BOGOTA
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1787 1107 59 Types of queries are: POCs, o
8402 1682 544 16 Corbina telecom
7545 1670 301 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 3409 3240 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1902 1773 AppliedTheory Corporation
17974 1802 1739 PT TELEKOMUNIKASI INDONESIA
28573 1787 1728 Types of queries are: POCs, o
8402 1682 1666 Corbina telecom
10620 1810 1634 TVCABLE BOGOTA
7545 1670 1582 TPG Internet Pty Ltd
6503 1542 1475 AVANTEL, S.A.
22773 1577 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
10.0.1.0/24 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 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
27.112.114.0/24 23884 Proimage Engineering and Comm
41.222.79.0/24 36938 >>UNKNOWN<<

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 /12:235
/13:459 /14:837 /15:1524 /16:12393 /17:6538 /18:10936
/19:21222 /20:30145 /21:30403 /22:41074 /23:38460 /24:216290
/25:92 /26:101 /27:112 /28:287 /29:259 /30:724
/31:19 /32:470

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3048 3409 Windstream Communications Inc
6389 2144 3426 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1810 TVCABLE BOGOTA
8402 1659 1682 Corbina telecom
30036 1367 1421 Mediacom Communications Corp
6503 1298 1542 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1118 1316 TEDATA
15557 1105 1158 LDCOM NETWORKS

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:542 2:710 4:18 6:3 8:404 10:1
12:2014 13:1 14:610 15:12 16:3 17:7
20:23 23:167 24:1779 27:1273 31:1011 32:119
33:2 34:2 36:8 37:402 38:802 39:4
40:120 41:3247 42:135 44:3 46:1511 47:3
49:391 50:541 52:13 54:8 55:11 56:3
57:39 58:965 59:519 60:280 61:1278 62:1033
63:2009 64:4206 65:2255 66:4527 67:2043 68:1351
69:3307 70:953 71:487 72:1849 73:1 74:2650
75:507 76:330 77:947 78:1015 79:501 80:1267
81:918 82:682 83:554 84:601 85:1215 86:773
87:937 88:359 89:1648 90:292 91:4772 92:529
93:1494 94:1499 95:1170 96:363 97:319 98:927
99:37 100:7 101:175 103:1015 106:102 107:189
108:239 109:1649 110:768 111:924 112:456 113:597
114:650 115:881 116:914 117:717 118:924 119:1231
120:358 121:823 122:1675 123:1100 124:1370 125:1266
128:516 129:197 130:258 131:593 132:179 133:22
134:246 135:62 136:212 137:178 138:355 139:160
140:492 141:247 142:403 143:407 144:527 145:131
146:493 147:295 148:802 149:303 150:159 151:176
152:464 153:173 154:9 155:451 156:216 157:382
158:177 159:523 160:340 161:262 162:350 163:190
164:571 165:413 166:573 167:468 168:824 169:128
170:861 171:127 172:2 173:1768 174:597 175:444
176:491 177:678 178:1338 180:1214 181:75 182:817
183:288 184:455 185:1 186:2225 187:1047 188:1216
189:1793 190:5556 192:6043 193:5594 194:4676 195:3675
196:1301 197:131 198:3670 199:4534 200:5834 201:1938
202:8554 203:8637 204:4335 205:2507 206:2772 207:2809
208:4084 209:3648 210:2783 211:1492 212:2071 213:1926
214:852 215:104 216:5149 217:1545 218:547 219:359
220:1235 221:557 222:330 223:337

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 22 Apr, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 399347
Prefixes after maximum aggregation: 170583
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197584
Total ASes present in the Internet Routing Table: 38380
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33082
Origin ASes announcing only one prefix: 15634
Transit ASes present in the Internet Routing Table: 5298
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1214
Unregistered ASNs in the Routing Table: 224
Number of 32-bit ASNs allocated by the RIRs: 2615
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5547
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2556395008
Equivalent to 152 /8s, 95 /16s and 126 /24s
Percentage of available address space announced: 69.0
Percentage of allocated address space announced: 69.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 168935

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 93492
Total APNIC prefixes after maximum aggregation: 30804
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90980
Unique aggregates announced from the APNIC address blocks: 39811
APNIC Region origin ASes present in the Internet Routing Table: 4639
APNIC Prefixes per ASN: 19.61
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 643938560
Equivalent to 38 /8s, 97 /16s and 185 /24s
Percentage of available APNIC address space announced: 81.7

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 148581
Total ARIN prefixes after maximum aggregation: 75771
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120128
Unique aggregates announced from the ARIN address blocks: 50337
ARIN Region origin ASes present in the Internet Routing Table: 14986
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5728
ARIN Region transit ASes present in the Internet Routing Table: 1513
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 807198720
Equivalent to 48 /8s, 28 /16s and 224 /24s
Percentage of available ARIN address space announced: 64.2

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 101801
Total RIPE prefixes after maximum aggregation: 53665
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93764
Unique aggregates announced from the RIPE address blocks: 58222
RIPE Region origin ASes present in the Internet Routing Table: 16483
RIPE Prefixes per ASN: 5.69
RIPE Region origin ASes announcing only one prefix: 8034
RIPE Region transit ASes present in the Internet Routing Table: 2595
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 510052352
Equivalent to 30 /8s, 102 /16s and 200 /24s
Percentage of available RIPE address space announced: 82.2

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 40051
Total LACNIC prefixes after maximum aggregation: 8137
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40055
Unique aggregates announced from the LACNIC address blocks: 20243
LACNIC Region origin ASes present in the Internet Routing Table: 1581
LACNIC Prefixes per ASN: 25.34
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99396096
Equivalent to 5 /8s, 236 /16s and 170 /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: 9050
Total AfriNIC prefixes after maximum aggregation: 2130
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 7130
Unique aggregates announced from the AfriNIC address blocks: 2182
AfriNIC Region origin ASes present in the Internet Routing Table: 529
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31781888
Equivalent to 1 /8s, 228 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 47.4

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 1928 11105 695 Korea Telecom (KIX)
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1670 301 88 TPG Internet Pty Ltd
4755 1556 385 155 TATA Communications formerly
9829 1248 1069 30 National Internet Backbone
9583 1144 85 489 Sify Limited
7552 1104 1062 11 Vietel Corporation
24560 1022 385 167 Bharti Airtel Ltd., Telemedia
4808 958 1938 287 CNCGROUP IP network China169
18101 948 131 155 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 196 BellSouth.net Inc.
7029 3404 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1905 680 129 PaeTec Communications, Inc.
20115 1640 1566 619 Charter Communications
4323 1599 1060 382 tw telecom holdings, inc.
22773 1576 2910 112 Cox Communications Inc.
30036 1411 258 762 Mediacom Communications Corp
7018 1267 13903 826 AT&T Services, Inc.
11492 1186 216 364 CABLE ONE, INC.

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1585 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 680 37 9 FreeNet ISP
34984 680 188 174 BILISIM TELEKOM
6830 658 2215 427 UPC Broadband
12479 643 666 63 France Telecom Espana SA
20940 634 205 500 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 531 8441 397 Deutsche Telekom AG
8551 503 360 81 Bezeq International

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1810 327 176 Types of queries are: POCs, o
28573 1782 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1363 829 188 Telecom Argentina S.A.
8151 1348 3015 339 Uninet S.A. de C.V.
26615 902 697 32 Tim Celular S.A.
27947 661 74 98 Telconet S.A
11172 641 107 74 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 Types of queries are: POCs, o

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1314 958 13 TEDATA
24863 837 274 32 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 180 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
29571 159 15 15 Ci Telecom Autonomous system
36923 157 20 4 Swift Networks Limited

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 196 BellSouth.net Inc.
7029 3404 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1928 11105 695 Korea Telecom (KIX)
1785 1905 680 129 PaeTec Communications, Inc.
10620 1810 327 176 Types of queries are: POCs, o
28573 1782 1107 59 Types of queries are: POCs, o
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1670 301 88 TPG Internet Pty Ltd
20115 1640 1566 619 Charter Communications

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3404 3235 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1905 1776 PaeTec Communications, Inc.
28573 1782 1723 Types of queries are: POCs, o
17974 1718 1655 PT Telekomunikasi Indonesia
10620 1810 1634 Types of queries are: POCs, o
7545 1670 1582 TPG Internet Pty Ltd
8402 1585 1569 Corbina telecom
22773 1576 1464 Cox Communications Inc.
6503 1522 1456 Axtel, S.A.B. de C.V.

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/london/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 /12:236
/13:459 /14:828 /15:1481 /16:12183 /17:6240 /18:10451
/19:20624 /20:28788 /21:29617 /22:40017 /23:37492 /24:210234
/25:11 /26:21 /27:20 /28:152 /29:146 /30:70
/31:0 /32:136

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3044 3404 Windstream Communications Inc
6389 2145 3428 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1810 Types of queries are: POCs, o
8402 1562 1585 Corbina telecom
30036 1357 1411 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1149 1186 CABLE ONE, INC.
8452 1116 1314 TEDATA
1785 1071 1905 PaeTec Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:535 2:650 4:14 6:3 8:402 12:1970
13:1 14:591 15:12 16:3 17:7 20:23
23:165 24:1764 27:1259 31:1004 32:52 33:2
34:2 36:8 37:393 38:793 40:120 41:3216
42:134 44:3 46:1494 47:3 49:382 50:532
52:13 54:8 55:8 56:3 57:28 58:915
59:485 60:277 61:1090 62:980 63:1985 64:4157
65:2250 66:4482 67:2019 68:1166 69:3185 70:900
71:486 72:1819 74:2583 75:494 76:318 77:942
78:1009 79:481 80:1220 81:902 82:673 83:550
84:471 85:1197 86:419 87:925 88:345 89:1626
90:291 91:4741 92:524 93:1332 94:1488 95:1154
96:355 97:315 98:894 99:33 100:7 101:170
103:989 106:102 107:189 108:217 109:1286 110:734
111:916 112:444 113:578 114:638 115:797 116:882
117:696 118:905 119:1187 120:347 121:666 122:1605
123:1083 124:1296 125:1228 128:507 129:187 130:247
131:589 132:172 133:22 134:233 135:62 136:211
137:173 138:353 139:143 140:465 141:244 142:384
143:392 144:522 145:69 146:486 147:277 148:745
149:294 150:150 151:175 152:462 153:171 154:8
155:419 156:212 157:335 158:175 159:450 160:336
161:237 162:336 163:179 164:566 165:395 166:572
167:468 168:816 169:126 170:861 171:127 172:2
173:1742 174:561 175:419 176:431 177:656 178:1334
180:1171 181:75 182:787 183:288 184:451 185:1
186:2213 187:1046 188:1209 189:1787 190:5515 192:5963
193:5544 194:4641 195:3582 196:1266 197:130 198:3600
199:4479 200:5705 201:1925 202:8255 203:8480 204:4245
205:2474 206:2664 207:2722 208:4050 209:3597 210:2663
211:1453 212:2018 213:1909 214:841 215:102 216:5104
217:1539 218:524 219:308 220:1223 221:538 222:294
223:318

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 22 Apr, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 406054
Prefixes after maximum aggregation: 172627
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 197724
Total ASes present in the Internet Routing Table: 40761
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 33078
Origin ASes announcing only one prefix: 15602
Transit ASes present in the Internet Routing Table: 5447
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 64
Max AS path prepend of ASN ( 9902) 56
Prefixes from unregistered ASNs in the Routing Table: 398
Unregistered ASNs in the Routing Table: 127
Number of 32-bit ASNs allocated by the RIRs: 2615
Number of 32-bit ASNs visible in the Routing Table: 2236
Prefixes from 32-bit ASNs in the Routing Table: 5602
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2538442960
Equivalent to 151 /8s, 77 /16s and 144 /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: 92.4
Total number of prefixes smaller than registry allocations: 173120

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 99249
Total APNIC prefixes after maximum aggregation: 32208
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 95719
Unique aggregates announced from the APNIC address blocks: 39816
APNIC Region origin ASes present in the Internet Routing Table: 4685
APNIC Prefixes per ASN: 20.43
APNIC Region origin ASes announcing only one prefix: 1239
APNIC Region transit ASes present in the Internet Routing Table: 733
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 185
Number of APNIC addresses announced to Internet: 644100448
Equivalent to 38 /8s, 100 /16s and 49 /24s
Percentage of available APNIC address space announced: 81.7

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 149728
Total ARIN prefixes after maximum aggregation: 76239
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 121085
Unique aggregates announced from the ARIN address blocks: 50418
ARIN Region origin ASes present in the Internet Routing Table: 15043
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5728
ARIN Region transit ASes present in the Internet Routing Table: 1582
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807168960
Equivalent to 48 /8s, 28 /16s and 107 /24s
Percentage of available ARIN address space announced: 64.1

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 101515
Total RIPE prefixes after maximum aggregation: 53710
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93417
Unique aggregates announced from the RIPE address blocks: 58214
RIPE Region origin ASes present in the Internet Routing Table: 16497
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8029
RIPE Region transit ASes present in the Internet Routing Table: 2626
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1503
Number of RIPE addresses announced to Internet: 510039432
Equivalent to 30 /8s, 102 /16s and 149 /24s
Percentage of available RIPE address space announced: 82.2

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 40702
Total LACNIC prefixes after maximum aggregation: 8265
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40553
Unique aggregates announced from the LACNIC address blocks: 20220
LACNIC Region origin ASes present in the Internet Routing Table: 1591
LACNIC Prefixes per ASN: 25.49
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 298
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 526
Number of LACNIC addresses announced to Internet: 99441288
Equivalent to 5 /8s, 237 /16s and 90 /24s
Percentage of available LACNIC address space announced: 65.9

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: 9076
Total AfriNIC prefixes after maximum aggregation: 2129
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 7128
Unique aggregates announced from the AfriNIC address blocks: 2187
AfriNIC Region origin ASes present in the Internet Routing Table: 531
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31781120
Equivalent to 1 /8s, 228 /16s and 241 /24s
Percentage of available AfriNIC address space announced: 47.4

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 2497 11113 1012 Korea Telecom (KIX)
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1676 301 87 TPG Internet Pty Ltd
4755 1571 386 158 TATA Communications formerly
9829 1248 1069 30 BSNL National Internet Backbo
7552 1170 1062 11 Vietel Corporation
9583 1144 85 489 Sify Limited
4808 1105 2049 318 CNCGROUP IP network: China169
24560 1024 385 167 Bharti Airtel Ltd., Telemedia
9498 948 291 64 BHARTI Airtel Ltd.

Complete listing at http://thyme.rand.apnic.net/current/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 3368 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1903 680 130 PaeTec Communications, Inc.
20115 1640 1566 619 Charter Communications
4323 1602 1044 381 Time Warner Telecom
22773 1577 2910 112 Cox Communications, Inc.
30036 1412 258 763 Mediacom Communications Corp
7018 1260 9775 819 AT&T WorldNet Services
11492 1186 216 364 Cable One

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1682 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 680 37 9 FreeNet ISP
34984 680 188 174 BILISIM TELEKOM
6830 657 2215 426 UPC Distribution Services
20940 650 206 501 Akamai Technologies European
12479 647 666 63 Uni2 Autonomous System
8551 572 360 81 Bezeq International
3320 531 8441 397 Deutsche Telekom AG
2578 500 33 7 Demos, Moscow, Russia

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1810 327 176 TVCABLE BOGOTA
28573 1736 1107 59 NET Servicos de Comunicao S.A
6503 1524 418 65 AVANTEL, S.A.
8151 1488 3034 348 UniNet S.A. de C.V.
7303 1363 829 188 Telecom Argentina Stet-France
26615 902 697 32 Tim Brasil S.A.
27947 683 74 98 Telconet S.A
11172 639 91 73 Servicios Alestra S.A de C.V
22047 582 326 15 VTR PUNTO NET S.A.
3816 572 242 100 Empresa Nacional de Telecomun

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1314 958 13 TEDATA
24863 840 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
16637 171 666 83 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
29571 159 15 15 Ci Telecom Autonomous system

Complete listing at http://thyme.rand.apnic.net/current/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 3368 985 157 Windstream Communications Inc
4766 2497 11113 1012 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1903 680 130 PaeTec Communications, Inc.
10620 1810 327 176 TVCABLE BOGOTA
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1736 1107 59 NET Servicos de Comunicao S.A
8402 1682 544 16 Corbina telecom
7545 1676 301 87 TPG Internet Pty Ltd

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3368 3211 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1903 1773 PaeTec Communications, Inc.
17974 1799 1736 PT TELEKOMUNIKASI INDONESIA
28573 1736 1677 NET Servicos de Comunicao S.A
8402 1682 1666 Corbina telecom
10620 1810 1634 TVCABLE BOGOTA
7545 1676 1589 TPG Internet Pty Ltd
4766 2497 1485 Korea Telecom (KIX)
22773 1577 1465 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
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
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
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/current/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
/13:459 /14:830 /15:1480 /16:12223 /17:6263 /18:10543
/19:20620 /20:28946 /21:29911 /22:40520 /23:37844 /24:212373
/25:1196 /26:1425 /27:787 /28:157 /29:66 /30:17
/31:0 /32:19

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3026 3368 Windstream Communications Inc
6389 2145 3427 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1810 TVCABLE BOGOTA
8402 1659 1682 Corbina telecom
30036 1358 1412 Mediacom Communications Corp
6503 1285 1524 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1116 1314 TEDATA
1785 1071 1903 PaeTec Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:537 2:712 4:14 6:3 8:402 12:2004
13:1 14:597 15:12 16:3 17:7 20:22
23:167 24:1769 27:1269 31:981 32:57 33:2
34:2 36:8 37:399 38:799 40:120 41:3205
42:134 44:3 46:1491 47:3 49:385 50:532
52:13 54:8 55:8 56:3 57:31 58:960
59:492 60:281 61:1195 62:980 63:1989 64:4168
65:2251 66:4494 67:2019 68:1167 69:3188 70:901
71:486 72:1819 74:2584 75:494 76:318 77:945
78:1011 79:485 80:1221 81:903 82:668 83:551
84:472 85:1208 86:412 87:923 88:345 89:1624
90:291 91:4739 92:525 93:1337 94:1488 95:1163
96:360 97:315 98:895 99:36 100:7 101:173
103:1011 106:102 107:189 108:237 109:1287 110:753
111:921 112:455 113:595 114:643 115:806 116:908
117:715 118:906 119:1231 120:354 121:685 122:1645
123:1093 124:1363 125:1231 128:514 129:193 130:251
131:590 132:179 133:22 134:243 135:62 136:212
137:176 138:353 139:145 140:491 141:245 142:402
143:399 144:525 145:69 146:491 147:277 148:765
149:295 150:158 151:175 152:464 153:171 154:9
155:401 156:215 157:380 158:176 159:522 160:337
161:261 162:339 163:189 164:571 165:394 166:573
167:468 168:822 169:127 170:861 171:127 172:2
173:1743 174:558 175:432 176:429 177:680 178:1333
180:1182 181:75 182:812 183:288 184:452 185:1
186:2213 187:1044 188:1213 189:1786 190:5521 192:5992
193:5540 194:4641 195:3589 196:1292 197:130 198:3648
199:4523 200:5807 201:1927 202:8524 203:8592 204:4325
205:2492 206:2751 207:2791 208:4056 209:3611 210:2743
211:1477 212:2017 213:1908 214:835 215:104 216:5118
217:1536 218:539 219:323 220:1212 221:556 222:323
223:332

End of report
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Friday, April 20, 2012

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 21 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: 412305
Prefixes after maximum aggregation: 174212
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 190888
Total ASes present in the Internet Routing Table: 40857
Prefixes per ASN: 10.09
Origin-only ASes present in the Internet Routing Table: 33101
Origin ASes announcing only one prefix: 15668
Transit ASes present in the Internet Routing Table: 5506
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 30
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 6144
Unregistered ASNs in the Routing Table: 172
Number of 32-bit ASNs allocated by the RIRs: 2611
Number of 32-bit ASNs visible in the Routing Table: 2250
Prefixes from 32-bit ASNs in the Routing Table: 5633
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2360223324
Equivalent to 140 /8s, 174 /16s and 38 /24s
Percentage of available address space announced: 63.7
Percentage of allocated address space announced: 63.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 175199

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 97769
Total APNIC prefixes after maximum aggregation: 31210
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94335
Unique aggregates announced from the APNIC address blocks: 38112
APNIC Region origin ASes present in the Internet Routing Table: 4676
APNIC Prefixes per ASN: 20.17
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 751
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: 187
Number of APNIC addresses announced to Internet: 626645768
Equivalent to 37 /8s, 89 /16s and 219 /24s
Percentage of available APNIC address space announced: 79.5

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 152852
Total ARIN prefixes after maximum aggregation: 78522
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123837
Unique aggregates announced from the ARIN address blocks: 47285
ARIN Region origin ASes present in the Internet Routing Table: 15090
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5750
ARIN Region transit ASes present in the Internet Routing Table: 1580
Average ARIN Region AS path length visible: 4.4
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: 668620800
Equivalent to 39 /8s, 218 /16s and 88 /24s
Percentage of available ARIN address space announced: 53.1

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 104805
Total RIPE prefixes after maximum aggregation: 54013
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 95874
Unique aggregates announced from the RIPE address blocks: 56110
RIPE Region origin ASes present in the Internet Routing Table: 16530
RIPE Prefixes per ASN: 5.80
RIPE Region origin ASes announcing only one prefix: 8048
RIPE Region transit ASes present in the Internet Routing Table: 2645
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1514
Number of RIPE addresses announced to Internet: 487449484
Equivalent to 29 /8s, 13 /16s and 227 /24s
Percentage of available RIPE address space announced: 78.5

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 41365
Total LACNIC prefixes after maximum aggregation: 8245
LACNIC Deaggregation factor: 5.02
Prefixes being announced from the LACNIC address blocks: 41154
Unique aggregates announced from the LACNIC address blocks: 20194
LACNIC Region origin ASes present in the Internet Routing Table: 1592
LACNIC Prefixes per ASN: 25.85
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 302
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 527
Number of LACNIC addresses announced to Internet: 99328520
Equivalent to 5 /8s, 235 /16s and 162 /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: 9596
Total AfriNIC prefixes after maximum aggregation: 2153
AfriNIC Deaggregation factor: 4.46
Prefixes being announced from the AfriNIC address blocks: 7642
Unique aggregates announced from the AfriNIC address blocks: 2191
AfriNIC Region origin ASes present in the Internet Routing Table: 541
AfriNIC Prefixes per ASN: 14.13
AfriNIC Region origin ASes announcing only one prefix: 171
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31801344
Equivalent to 1 /8s, 229 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 47.4

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 1929 11105 693 Korea Telecom (KIX)
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1670 301 88 TPG Internet Pty Ltd
4755 1587 388 166 Videsh Sanchar Nigam Ltd. Aut
9829 1248 1069 30 BSNL National Internet Backbo
9583 1226 94 527 Sify Limited
7552 1171 1062 11 Vietel Corporation
24560 1024 385 167 Bharti Airtel Ltd.
4808 968 1913 286 CNCGROUP IP network: China169
9498 948 291 64 BHARTI Airtel Ltd.

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 3426 3807 195 bellsouth.net, inc.
7029 3369 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1898 680 130 AppliedTheory Corporation
20115 1641 1565 620 Charter Communications
22773 1576 2910 111 Cox Communications, Inc.
4323 1537 991 350 Time Warner Telecom
30036 1421 259 750 Mediacom Communications Corp
7018 1260 9774 820 AT&T WorldNet Services
11492 1188 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 1631 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
15557 1158 2247 55 LDCOM NETWORKS
286 1054 852 198 KPNQwest Backbone AS
31148 680 37 9 FreeNet ISP
34984 679 188 175 Tellcom Iletisim Hizmetleri
6830 658 2215 427 UPC Distribution Services
12479 647 666 63 Uni2 Autonomous System
20940 640 207 503 Akamai Technologies European
8551 598 360 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 1810 327 176 TVCABLE BOGOTA
28573 1782 1107 59 Types of queries are: POCs, o
6503 1543 418 66 AVANTEL, S.A.
8151 1534 3019 333 Uninet S.A. de C.V.
7303 1361 829 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 689 74 98 Telconet S.A
11172 637 91 73 Alestra
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 101 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 1316 958 13 TEDATA
24863 851 274 35 LINKdotNET AS number
16284 539 4 13 GST-N Autonomous System
6713 491 649 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 180 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 86 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 3426 3807 195 bellsouth.net, inc.
7029 3369 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1929 11105 693 Korea Telecom (KIX)
1785 1898 680 130 AppliedTheory Corporation
10620 1810 327 176 TVCABLE BOGOTA
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1782 1107 59 Types of queries are: POCs, o
7545 1670 301 88 TPG Internet Pty Ltd
20115 1641 1565 620 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 3369 3212 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1898 1768 AppliedTheory Corporation
17974 1802 1739 PT TELEKOMUNIKASI INDONESIA
28573 1782 1723 Types of queries are: POCs, o
10620 1810 1634 TVCABLE BOGOTA
8402 1631 1615 Corbina telecom
7545 1670 1582 TPG Internet Pty Ltd
6503 1543 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)
-----------------------------------------

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
--------------------------------

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 /12:235
/13:459 /14:836 /15:1524 /16:12387 /17:6541 /18:10932
/19:21212 /20:30123 /21:30386 /22:41040 /23:38431 /24:215987
/25:92 /26:100 /27:112 /28:293 /29:261 /30:723
/31:20 /32:470

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3027 3369 Windstream Communications Inc
6389 2144 3426 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1810 TVCABLE BOGOTA
8402 1608 1631 Corbina telecom
30036 1367 1421 Mediacom Communications Corp
6503 1300 1543 AVANTEL, S.A.
11492 1151 1188 Cable One
8452 1118 1316 TEDATA
15557 1105 1158 LDCOM NETWORKS

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:542 2:654 4:18 6:3 8:404 12:2013
13:1 14:611 15:12 16:3 17:7 20:22
23:167 24:1779 27:1262 31:1011 32:119 33:2
34:2 36:8 37:368 38:802 39:4 40:120
41:3218 42:135 44:3 46:1507 47:3 49:390
50:540 52:13 54:8 55:11 56:3 57:39
58:965 59:519 60:280 61:1285 62:1033 63:2009
64:4196 65:2255 66:4523 67:2044 68:1351 69:3306
70:953 71:487 72:1849 73:1 74:2650 75:507
76:330 77:945 78:1015 79:501 80:1258 81:918
82:681 83:553 84:612 85:1215 86:773 87:937
88:359 89:1646 90:292 91:4764 92:529 93:1491
94:1481 95:1170 96:363 97:319 98:924 99:37
100:7 101:179 103:1014 106:102 107:188 108:238
109:1648 110:770 111:924 112:456 113:596 114:649
115:881 116:914 117:717 118:924 119:1232 120:357
121:822 122:1674 123:1084 124:1360 125:1266 128:550
129:197 130:258 131:593 132:179 133:22 134:246
135:62 136:212 137:178 138:355 139:159 140:492
141:247 142:388 143:407 144:526 145:131 146:495
147:295 148:801 149:303 150:160 151:176 152:464
153:172 154:10 155:451 156:216 157:382 158:177
159:523 160:340 161:262 162:350 163:188 164:571
165:410 166:573 167:466 168:823 169:128 170:861
171:127 172:2 173:1768 174:593 175:445 176:490
177:674 178:1339 180:1210 181:75 182:815 183:288
184:455 185:1 186:2223 187:1045 188:1183 189:1791
190:5565 192:6039 193:5594 194:4676 195:3675 196:1301
197:131 198:3671 199:4530 200:5824 201:1935 202:8543
203:8636 204:4331 205:2504 206:2773 207:2808 208:4080
209:3646 210:2788 211:1492 212:2072 213:1924 214:840
215:104 216:5142 217:1544 218:547 219:359 220:1235
221:557 222:329 223:337

End of report
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