BGP Routing: 2011-09-18

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, September 24, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 25 Sep, 2011

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: 378244
Prefixes after maximum aggregation: 169424
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 185263
Total ASes present in the Internet Routing Table: 38891
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 32228
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5234
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4669
Unregistered ASNs in the Routing Table: 782
Number of 32-bit ASNs allocated by the RIRs: 1767
Number of 32-bit ASNs visible in the Routing Table: 1429
Prefixes from 32-bit ASNs in the Routing Table: 3267
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 97
Number of addresses announced to Internet: 2480608662
Equivalent to 147 /8s, 219 /16s and 21 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 157171

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

Prefixes being announced by APNIC Region ASes: 92032
Total APNIC prefixes after maximum aggregation: 29588
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88656
Unique aggregates announced from the APNIC address blocks: 38165
APNIC Region origin ASes present in the Internet Routing Table: 4551
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 715
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 628064256
Equivalent to 37 /8s, 111 /16s and 128 /24s
Percentage of available APNIC address space announced: 79.7

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: 147253
Total ARIN prefixes after maximum aggregation: 75897
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119066
Unique aggregates announced from the ARIN address blocks: 47951
ARIN Region origin ASes present in the Internet Routing Table: 14701
ARIN Prefixes per ASN: 8.10
ARIN Region origin ASes announcing only one prefix: 5657
ARIN Region transit ASes present in the Internet Routing Table: 1547
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 805085084
Equivalent to 47 /8s, 252 /16s and 159 /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: 91433
Total RIPE prefixes after maximum aggregation: 50480
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 83311
Unique aggregates announced from the RIPE address blocks: 54120
RIPE Region origin ASes present in the Internet Routing Table: 16001
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7962
RIPE Region transit ASes present in the Internet Routing Table: 2531
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1016
Number of RIPE addresses announced to Internet: 490096076
Equivalent to 29 /8s, 54 /16s and 69 /24s
Percentage of available RIPE address space announced: 79.0

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: 35557
Total LACNIC prefixes after maximum aggregation: 7816
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 34743
Unique aggregates announced from the LACNIC address blocks: 17912
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 22.71
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 309
Number of LACNIC addresses announced to Internet: 89319432
Equivalent to 5 /8s, 82 /16s and 232 /24s
Percentage of available LACNIC address space announced: 59.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8504
Total AfriNIC prefixes after maximum aggregation: 2007
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6588
Unique aggregates announced from the AfriNIC address blocks: 1995
AfriNIC Region origin ASes present in the Internet Routing Table: 489
AfriNIC Prefixes per ASN: 13.47
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27389952
Equivalent to 1 /8s, 161 /16s and 240 /24s
Percentage of available AfriNIC address space announced: 40.8

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
17974 1998 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
7545 1595 303 85 TPG Internet Pty Ltd
4755 1551 635 166 Videsh Sanchar Nigam Ltd. Aut
7552 1398 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
4808 1091 2123 311 CNCGROUP IP network: China169
9583 1085 80 502 Sify Limited
18101 952 118 141 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 3560 3817 226 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1723 1018 218 Windstream Communications Inc
4323 1624 1098 391 Time Warner Telecom
20115 1596 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1337 7050 874 AT&T WorldNet Services

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

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

ASN No of nets /20 equiv MaxAgg Description
286 1064 824 199 KPNQwest Backbone AS
8402 959 352 13 Corbina telecom
34984 566 108 181 Tellcom Iletisim Hizmetleri
20940 548 184 423 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 534 1813 325 UPC Distribution Services
3292 528 2082 407 TDC Tele Danmark
3320 493 8167 381 Deutsche Telekom AG
12479 474 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C

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 1680 309 155 TVCABLE BOGOTA
8151 1455 2803 350 Uninet S.A. de C.V.
28573 1359 1013 70 Types of queries are: POCs, o
7303 1162 681 173 Telecom Argentina Stet-France
14420 736 58 88 Types of queries are: POCs, o
6503 590 450 70 AVANTEL, S.A.
27947 584 56 75 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 535 232 98 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
24863 812 147 43 LINKdotNET AS number
8452 712 445 11 TEDATA
15475 452 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 YEBO-AS
24835 190 80 8 RAYA Telecom - Egypt

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 3560 3817 226 bellsouth.net, inc.
23456 3267 776 1775 >>UNKNOWN<<
17974 1998 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
18566 1915 366 239 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1723 1018 218 Windstream Communications Inc
10620 1680 309 155 TVCABLE BOGOTA
4323 1624 1098 391 Time Warner Telecom
20115 1596 1543 633 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
17974 1998 1965 PT TELEKOMUNIKASI INDONESIA
1785 1827 1703 AppliedTheory Corporation
18566 1915 1676 Covad Communications
10620 1680 1525 TVCABLE BOGOTA
7545 1595 1510 TPG Internet Pty Ltd
7029 1723 1505 Windstream Communications Inc
23456 3267 1492 >>UNKNOWN<<
7552 1398 1391 Vietel Corporation
4755 1551 1385 Videsh Sanchar Nigam Ltd. Aut
22773 1458 1359 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
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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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

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

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

Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 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

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

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

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless

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 /10:27 /11:81 /12:235
/13:464 /14:807 /15:1453 /16:12102 /17:6248 /18:10334
/19:20361 /20:28239 /21:27593 /22:36974 /23:35428 /24:196061
/25:74 /26:89 /27:122 /28:293 /29:104 /30:556
/31:73 /32:495

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

ASN No of nets Total ann. Description
6389 2197 3560 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1575 1680 TVCABLE BOGOTA
23456 1555 3267 >>UNKNOWN<<
7029 1412 1723 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1827 AppliedTheory Corporation
22773 947 1458 Cox Communications, Inc.

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

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

1:383 2:293 4:19 5:1 6:3 8:353
12:1953 13:1 14:542 15:13 16:3 17:7
20:10 23:35 24:1687 27:942 31:545 32:149
33:4 34:2 36:4 38:745 40:108 41:2597
42:48 44:3 46:991 47:3 49:258 50:426
52:13 54:2 55:4 56:2 57:46 58:882
59:491 60:377 61:1182 62:1101 63:1963 64:4097
65:2308 66:4011 67:1989 68:1292 69:3308 70:860
71:377 72:1886 73:1 74:2506 75:361 76:349
77:871 78:791 79:492 80:1129 81:841 82:513
83:524 84:639 85:1092 86:416 87:879 88:357
89:1598 90:267 91:4126 92:533 93:1296 94:1329
95:919 96:440 97:276 98:947 99:37 101:210
103:316 106:70 107:52 108:81 109:1037 110:674
111:791 112:324 113:450 114:571 115:696 116:919
117:711 118:901 119:1200 120:334 121:703 122:1610
123:1008 124:1340 125:1395 128:245 129:181 130:165
131:583 132:120 133:21 134:216 135:54 136:212
137:138 138:287 139:131 140:494 141:287 142:390
143:403 144:486 145:58 146:472 147:226 148:690
149:259 150:153 151:191 152:446 153:177 154:6
155:394 156:203 157:360 158:146 159:463 160:324
161:206 162:339 163:177 164:507 165:403 166:536
167:435 168:752 169:147 170:861 171:83 172:1
173:1661 174:659 175:411 176:214 177:278 178:1032
180:1093 181:30 182:631 183:222 184:366 185:1
186:1467 187:669 188:945 189:869 190:5175 192:5936
193:5027 194:3556 195:3093 196:1247 197:175 198:3606
199:4135 200:5517 201:1622 202:8549 203:8507 204:4259
205:2381 206:2739 207:2838 208:4162 209:3544 210:2733
211:1471 212:2137 213:1786 214:779 215:76 216:4938
217:1612 218:560 219:341 220:1223 221:514 222:343
223:263

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 25 Sep, 2011

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

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

BGP routing table entries examined: 368155
Prefixes after maximum aggregation: 166431
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185243
Total ASes present in the Internet Routing Table: 37289
Prefixes per ASN: 9.87
Origin-only ASes present in the Internet Routing Table: 32183
Origin ASes announcing only one prefix: 15502
Transit ASes present in the Internet Routing Table: 5106
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2692
Unregistered ASNs in the Routing Table: 852
Number of 32-bit ASNs allocated by the RIRs: 1767
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3261
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 94
Number of addresses announced to Internet: 2497091072
Equivalent to 148 /8s, 214 /16s and 150 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 152533

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

Prefixes being announced by APNIC Region ASes: 88993
Total APNIC prefixes after maximum aggregation: 29454
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86451
Unique aggregates announced from the APNIC address blocks: 38235
APNIC Region origin ASes present in the Internet Routing Table: 4516
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 3.9
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: 627422720
Equivalent to 37 /8s, 101 /16s and 182 /24s
Percentage of available APNIC address space announced: 79.6

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

Prefixes being announced by ARIN Region ASes: 142567
Total ARIN prefixes after maximum aggregation: 73383
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 115008
Unique aggregates announced from the ARIN address blocks: 48120
ARIN Region origin ASes present in the Internet Routing Table: 14613
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1487
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805029376
Equivalent to 47 /8s, 251 /16s and 198 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 89811
Total RIPE prefixes after maximum aggregation: 50288
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82510
Unique aggregates announced from the RIPE address blocks: 54052
RIPE Region origin ASes present in the Internet Routing Table: 15983
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7978
RIPE Region transit ASes present in the Internet Routing Table: 2503
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 489724160
Equivalent to 29 /8s, 48 /16s and 153 /24s
Percentage of available RIPE address space announced: 78.9

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

Prefixes being announced by LACNIC Region ASes: 34398
Total LACNIC prefixes after maximum aggregation: 7673
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33842
Unique aggregates announced from the LACNIC address blocks: 17888
LACNIC Region origin ASes present in the Internet Routing Table: 1515
LACNIC Prefixes per ASN: 22.34
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 89260800
Equivalent to 5 /8s, 82 /16s and 3 /24s
Percentage of available LACNIC address space announced: 59.1

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: 8423
Total AfriNIC prefixes after maximum aggregation: 2005
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6512
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.3
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: 27378688
Equivalent to 1 /8s, 161 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 40.8

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 1938 11040 649 Korea Telecom (KIX)
17974 1707 519 33 PT Telekomunikasi Indonesia
7545 1595 303 85 TPG Internet Pty Ltd
4755 1550 639 168 TATA Communications formerly
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 National Internet Backbone
9583 1085 80 502 Sify Limited
7552 985 1062 11 Vietel Corporation
4808 959 2003 271 CNCGROUP IP network China169
18101 954 118 142 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 3561 3817 227 BellSouth.net Inc.
18566 1913 365 237 Covad Communications Co.
1785 1829 680 123 PaeTec Communications, Inc.
7029 1742 1033 206 Windstream Communications Inc
4323 1624 1098 392 tw telecom holdings, inc.
20115 1596 1543 633 Charter Communications
22773 1457 2907 99 Cox Communications Inc.
30036 1419 263 676 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1348 7084 884 AT&T Services, 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 960 352 13 Corbina telecom
34984 565 108 180 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
20940 537 180 415 Akamai Technologies European
6830 532 1813 325 UPC Broadband
3320 493 8167 381 Deutsche Telekom AG
3292 478 2082 408 TDC Data Networks
12479 474 594 8 France Telecom Espana SA
8866 461 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.

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 1680 309 155 Types of queries are: POCs, o
28573 1359 1013 70 Types of queries are: POCs, o
8151 1271 2784 345 Uninet S.A. de C.V.
7303 1162 681 173 Telecom Argentina S.A.
14420 736 58 88 CORPORACION NACIONAL DE TELEC
22047 580 322 17 Types of queries are: POCs, o
6503 568 450 70 Axtel, S.A.B. de C.V.
27947 561 56 76 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
11172 516 101 93 Alestra, S. de R.L. de C.V.

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
24863 809 147 41 LINKdotNET AS number
8452 712 445 11 TEDATA
15475 451 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt

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 3561 3817 227 BellSouth.net Inc.
23456 3261 776 1771 32-bit ASN transition
4766 1938 11040 649 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
1785 1829 680 123 PaeTec Communications, Inc.
7029 1742 1033 206 Windstream Communications Inc
17974 1707 519 33 PT Telekomunikasi Indonesia
10620 1680 309 155 Types of queries are: POCs, o
4323 1624 1098 392 tw telecom holdings, inc.
20115 1596 1543 633 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
1785 1829 1706 PaeTec Communications, Inc.
18566 1913 1676 Covad Communications Co.
17974 1707 1674 PT Telekomunikasi Indonesia
7029 1742 1536 Windstream Communications Inc
10620 1680 1525 Types of queries are: POCs, o
7545 1595 1510 TPG Internet Pty Ltd
23456 3261 1490 32-bit ASN transition
4755 1550 1382 TATA Communications formerly
22773 1457 1358 Cox Communications Inc.
4766 1938 1289 Korea Telecom (KIX)

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.
26973 UNALLOCATED 12.39.152.0/24 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
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 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut

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

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

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 24974 Tachyon Europe BV

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 /10:27 /11:81 /12:236
/13:464 /14:800 /15:1418 /16:11950 /17:5968 /18:9989
/19:19915 /20:27025 /21:27024 /22:36252 /23:34514 /24:191942
/25:12 /26:20 /27:23 /28:155 /29:124 /30:59
/31:0 /32:125

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

ASN No of nets Total ann. Description
6389 2197 3561 BellSouth.net Inc.
18566 1869 1913 Covad Communications Co.
10620 1575 1680 Types of queries are: POCs, o
23456 1549 3261 32-bit ASN transition
7029 1422 1742 Windstream Communications Inc
30036 1376 1419 Mediacom Communications Corp
11492 1112 1149 CABLE ONE, INC.
7011 1057 1182 Frontier Communications of Am
1785 1053 1829 PaeTec Communications, Inc.
22773 946 1457 Cox Communications Inc.

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

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

1:381 2:293 4:15 5:1 6:3 8:349
12:1949 13:1 14:530 15:13 16:3 17:7
20:10 23:35 24:1679 27:933 31:543 32:59
33:4 34:2 36:4 38:738 40:108 41:2543
42:48 44:3 46:986 47:3 49:258 50:423
52:13 54:2 55:4 56:2 57:35 58:828
59:489 60:374 61:1016 62:1088 63:1934 64:4020
65:2303 66:3953 67:1958 68:1109 69:3188 70:811
71:377 72:1855 74:2452 75:348 76:340 77:870
78:789 79:473 80:1124 81:839 82:509 83:522
84:623 85:1088 86:415 87:876 88:353 89:1585
90:267 91:4122 92:532 93:1291 94:1326 95:897
96:431 97:276 98:930 99:37 101:85 103:316
106:70 107:52 108:77 109:1024 110:636 111:786
112:316 113:427 114:555 115:667 116:877 117:672
118:858 119:1182 120:332 121:669 122:1601 123:999
124:1301 125:1335 128:206 129:172 130:159 131:580
132:112 133:21 134:207 135:54 136:210 137:135
138:287 139:116 140:472 141:286 142:369 143:398
144:481 145:57 146:465 147:215 148:618 149:258
150:146 151:191 152:444 153:177 154:5 155:394
156:200 157:328 158:146 159:394 160:323 161:197
162:336 163:166 164:506 165:371 166:534 167:433
168:747 169:144 170:861 171:83 172:1 173:1642
174:644 175:400 176:212 177:278 178:1030 180:1075
181:30 182:615 183:218 184:365 185:1 186:1464
187:668 188:945 189:869 190:5152 192:5864 193:5008
194:3513 195:3069 196:1231 197:176 198:3543 199:4078
200:5442 201:1619 202:8256 203:8358 204:4183 205:2339
206:2588 207:2755 208:4026 209:3432 210:2631 211:1459
212:2105 213:1778 214:779 215:76 216:4856 217:1607
218:550 219:334 220:1190 221:497 222:294 223:258

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 25 Sep, 2011

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

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

BGP routing table entries examined: 374392
Prefixes after maximum aggregation: 168389
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185220
Total ASes present in the Internet Routing Table: 38879
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 32228
Origin ASes announcing only one prefix: 15495
Transit ASes present in the Internet Routing Table: 5220
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 35
Max AS path prepend of ASN (23456) 31
Prefixes from unregistered ASNs in the Routing Table: 1406
Unregistered ASNs in the Routing Table: 774
Number of 32-bit ASNs allocated by the RIRs: 1767
Number of 32-bit ASNs visible in the Routing Table: 1431
Prefixes from 32-bit ASNs in the Routing Table: 3281
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 97
Number of addresses announced to Internet: 2480012288
Equivalent to 147 /8s, 209 /16s and 252 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 156437

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

Prefixes being announced by APNIC Region ASes: 94155
Total APNIC prefixes after maximum aggregation: 30784
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90669
Unique aggregates announced from the APNIC address blocks: 38210
APNIC Region origin ASes present in the Internet Routing Table: 4568
APNIC Prefixes per ASN: 19.85
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 628046176
Equivalent to 37 /8s, 111 /16s and 57 /24s
Percentage of available APNIC address space announced: 79.6

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

Prefixes being announced by ARIN Region ASes: 143844
Total ARIN prefixes after maximum aggregation: 73851
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115984
Unique aggregates announced from the ARIN address blocks: 48000
ARIN Region origin ASes present in the Internet Routing Table: 14682
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5661
ARIN Region transit ASes present in the Internet Routing Table: 1559
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 805040896
Equivalent to 47 /8s, 251 /16s and 243 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 89484
Total RIPE prefixes after maximum aggregation: 50345
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82191
Unique aggregates announced from the RIPE address blocks: 54078
RIPE Region origin ASes present in the Internet Routing Table: 15996
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 7971
RIPE Region transit ASes present in the Internet Routing Table: 2508
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1019
Number of RIPE addresses announced to Internet: 489781632
Equivalent to 29 /8s, 49 /16s and 121 /24s
Percentage of available RIPE address space announced: 78.9

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

Prefixes being announced by LACNIC Region ASes: 34959
Total LACNIC prefixes after maximum aggregation: 7778
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34265
Unique aggregates announced from the LACNIC address blocks: 17907
LACNIC Region origin ASes present in the Internet Routing Table: 1528
LACNIC Prefixes per ASN: 22.42
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 308
Number of LACNIC addresses announced to Internet: 89289856
Equivalent to 5 /8s, 82 /16s and 116 /24s
Percentage of available LACNIC address space announced: 59.1

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: 8500
Total AfriNIC prefixes after maximum aggregation: 2003
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6577
Unique aggregates announced from the AfriNIC address blocks: 2000
AfriNIC Region origin ASes present in the Internet Routing Table: 490
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 4
Number of AfriNIC addresses announced to Internet: 27353088
Equivalent to 1 /8s, 161 /16s and 96 /24s
Percentage of available AfriNIC address space announced: 40.8

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 2503 11048 956 Korea Telecom (KIX)
17974 2002 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1598 303 85 TPG Internet Pty Ltd
4755 1555 639 169 TATA Communications formerly
7552 1398 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1085 80 502 Sify Limited
4808 1072 2096 303 CNCGROUP IP network: China169
18101 952 118 141 Reliance Infocom Ltd Internet

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 3561 3817 226 bellsouth.net, inc.
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
4323 1624 1082 391 Time Warner Telecom
20115 1597 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1336 7050 873 AT&T WorldNet Services

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 973 352 13 Corbina telecom
34984 566 108 181 BILISIM TELEKOM
20940 536 180 414 Akamai Technologies European
6830 533 1813 325 UPC Distribution Services
3320 493 8167 381 Deutsche Telekom AG
3292 477 2082 407 TDC Tele Danmark
12479 475 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
3301 405 1904 354 TeliaNet Sweden

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 1680 309 155 TVCABLE BOGOTA
8151 1415 2803 352 UniNet S.A. de C.V.
28573 1368 1013 70 NET Servicos de Comunicao S.A
7303 1162 681 173 Telecom Argentina Stet-France
14420 736 58 88 CORPORACION NACIONAL DE TELEC
6503 581 450 69 AVANTEL, S.A.
22047 580 322 17 VTR PUNTO NET S.A.
27947 571 55 80 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 517 85 92 Servicios Alestra S.A de C.V

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
24863 812 147 43 LINKdotNET AS number
8452 712 445 11 TEDATA
15475 452 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
29571 190 17 11 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 3561 3817 226 bellsouth.net, inc.
23456 3281 774 1771 32-bit ASN transition
4766 2503 11048 956 Korea Telecom (KIX)
17974 2002 519 33 PT TELEKOMUNIKASI INDONESIA
18566 1915 366 239 Covad Communications
1785 1826 680 123 PaeTec Communications, Inc.
7029 1706 1008 194 Windstream Communications Inc
10620 1680 309 155 TVCABLE BOGOTA
4323 1624 1082 391 Time Warner Telecom
7545 1598 303 85 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
17974 2002 1969 PT TELEKOMUNIKASI INDONESIA
1785 1826 1703 PaeTec Communications, Inc.
18566 1915 1676 Covad Communications
4766 2503 1547 Korea Telecom (KIX)
10620 1680 1525 TVCABLE BOGOTA
7545 1598 1513 TPG Internet Pty Ltd
7029 1706 1512 Windstream Communications Inc
23456 3281 1510 32-bit ASN transition
7552 1398 1391 Vietel Corporation
4755 1555 1386 TATA Communications formerly

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
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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

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

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

Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
62.61.220.0/24 24974 Tachyon Europe BV - Wireless

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 /10:27 /11:81 /12:235
/13:464 /14:801 /15:1418 /16:11982 /17:5993 /18:10027
/19:19833 /20:27099 /21:27130 /22:36650 /23:34901 /24:194328
/25:1120 /26:1336 /27:758 /28:169 /29:4 /30:0
/31:0 /32:5

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

ASN No of nets Total ann. Description
6389 2198 3561 bellsouth.net, inc.
18566 1870 1915 Covad Communications
10620 1575 1680 TVCABLE BOGOTA
23456 1570 3281 32-bit ASN transition
7029 1403 1706 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
1785 1053 1826 PaeTec Communications, Inc.
7011 1032 1154 Citizens Utilities
22773 947 1458 Cox Communications, Inc.

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

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

1:384 2:292 4:15 5:1 6:3 8:352
12:1954 13:1 14:540 15:13 16:3 17:7
20:10 23:35 24:1682 27:947 31:543 32:64
33:4 34:2 36:4 38:743 40:108 41:2588
42:48 44:3 46:987 47:3 49:258 50:424
52:13 54:2 55:4 56:2 57:36 58:876
59:491 60:377 61:1177 62:1092 63:1937 64:4055
65:2305 66:3968 67:1956 68:1116 69:3191 70:815
71:377 72:1856 74:2451 75:349 76:341 77:870
78:789 79:479 80:1126 81:837 82:492 83:519
84:622 85:1088 86:409 87:874 88:351 89:1586
90:267 91:4119 92:532 93:1292 94:1324 95:917
96:437 97:276 98:930 99:37 101:209 103:317
106:70 107:52 108:77 109:1027 110:667 111:790
112:324 113:447 114:567 115:696 116:891 117:711
118:891 119:1204 120:334 121:686 122:1609 123:1003
124:1343 125:1395 128:244 129:179 130:165 131:582
132:120 133:21 134:215 135:54 136:212 137:138
138:287 139:118 140:494 141:286 142:386 143:403
144:487 145:58 146:470 147:215 148:636 149:259
150:153 151:191 152:446 153:177 154:6 155:393
156:203 157:359 158:146 159:463 160:325 161:206
162:339 163:177 164:507 165:373 166:534 167:434
168:752 169:146 170:854 171:83 172:1 173:1642
174:643 175:400 176:212 177:278 178:1030 180:1085
181:30 182:626 183:221 184:365 185:1 186:1466
187:669 188:944 189:870 190:5170 192:5906 193:5013
194:3529 195:3069 196:1252 197:175 198:3595 199:4118
200:5517 201:1636 202:8550 203:8502 204:4254 205:2358
206:2676 207:2824 208:4033 209:3457 210:2706 211:1466
212:2088 213:1776 214:780 215:76 216:4881 217:1609
218:559 219:339 220:1229 221:513 222:342 223:263

End of report
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Friday, September 23, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 24 Sep, 2011

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: 377966
Prefixes after maximum aggregation: 169283
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 184941
Total ASes present in the Internet Routing Table: 38898
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 32246
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5219
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 4685
Unregistered ASNs in the Routing Table: 781
Number of 32-bit ASNs allocated by the RIRs: 1762
Number of 32-bit ASNs visible in the Routing Table: 1433
Prefixes from 32-bit ASNs in the Routing Table: 3283
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 97
Number of addresses announced to Internet: 2480231318
Equivalent to 147 /8s, 213 /16s and 83 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 157215

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

Prefixes being announced by APNIC Region ASes: 91743
Total APNIC prefixes after maximum aggregation: 29537
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 88372
Unique aggregates announced from the APNIC address blocks: 37940
APNIC Region origin ASes present in the Internet Routing Table: 4556
APNIC Prefixes per ASN: 19.40
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 714
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 627695616
Equivalent to 37 /8s, 105 /16s and 224 /24s
Percentage of available APNIC address space announced: 79.6

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

Prefixes being announced by ARIN Region ASes: 147255
Total ARIN prefixes after maximum aggregation: 75803
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119014
Unique aggregates announced from the ARIN address blocks: 47939
ARIN Region origin ASes present in the Internet Routing Table: 14701
ARIN Prefixes per ASN: 8.10
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1534
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 805063068
Equivalent to 47 /8s, 252 /16s and 73 /24s
Percentage of available ARIN address space announced: 64.0

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

Prefixes being announced by RIPE Region ASes: 91394
Total RIPE prefixes after maximum aggregation: 50475
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 83270
Unique aggregates announced from the RIPE address blocks: 54064
RIPE Region origin ASes present in the Internet Routing Table: 16003
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7965
RIPE Region transit ASes present in the Internet Routing Table: 2534
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1018
Number of RIPE addresses announced to Internet: 490066636
Equivalent to 29 /8s, 53 /16s and 210 /24s
Percentage of available RIPE address space announced: 78.9

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

Prefixes being announced by LACNIC Region ASes: 35577
Total LACNIC prefixes after maximum aggregation: 7823
LACNIC Deaggregation factor: 4.55
Prefixes being announced from the LACNIC address blocks: 34777
Unique aggregates announced from the LACNIC address blocks: 17947
LACNIC Region origin ASes present in the Internet Routing Table: 1529
LACNIC Prefixes per ASN: 22.74
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 312
Number of LACNIC addresses announced to Internet: 89172232
Equivalent to 5 /8s, 80 /16s and 169 /24s
Percentage of available LACNIC address space announced: 59.1

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: 8515
Total AfriNIC prefixes after maximum aggregation: 2003
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6593
Unique aggregates announced from the AfriNIC address blocks: 1994
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 3
Number of AfriNIC addresses announced to Internet: 27327232
Equivalent to 1 /8s, 160 /16s and 251 /24s
Percentage of available AfriNIC address space announced: 40.7

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
17974 2004 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
7545 1596 303 86 TPG Internet Pty Ltd
4755 1550 634 165 Videsh Sanchar Nigam Ltd. Aut
7552 1398 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd.
9829 1158 989 28 BSNL National Internet Backbo
4808 1091 2123 311 CNCGROUP IP network: China169
9583 1085 80 502 Sify Limited
18101 937 117 140 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 3561 3817 226 bellsouth.net, inc.
18566 1913 365 238 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1724 1018 218 Windstream Communications Inc
4323 1623 1098 391 Time Warner Telecom
20115 1597 1543 633 Charter Communications
22773 1458 2907 99 Cox Communications, Inc.
30036 1420 264 677 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1342 7052 876 AT&T WorldNet Services

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

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

ASN No of nets /20 equiv MaxAgg Description
286 1064 824 199 KPNQwest Backbone AS
8402 959 352 13 Corbina telecom
34984 566 108 181 Tellcom Iletisim Hizmetleri
20940 549 184 424 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 534 1813 325 UPC Distribution Services
3292 528 2082 407 TDC Tele Danmark
3320 493 8167 381 Deutsche Telekom AG
12479 475 594 8 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C

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 1679 309 156 TVCABLE BOGOTA
8151 1456 2795 353 Uninet S.A. de C.V.
28573 1359 1013 70 Types of queries are: POCs, o
7303 1162 681 173 Telecom Argentina Stet-France
14420 734 58 88 Types of queries are: POCs, o
6503 591 450 70 AVANTEL, S.A.
27947 585 56 76 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 535 232 98 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
24863 812 147 43 LINKdotNET AS number
8452 710 445 11 TEDATA
15475 451 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 YEBO-AS
29571 190 17 11 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 3561 3817 226 bellsouth.net, inc.
23456 3283 776 1778 >>UNKNOWN<<
17974 2004 519 33 PT TELEKOMUNIKASI INDONESIA
4766 1939 11056 650 Korea Telecom (KIX)
18566 1913 365 238 Covad Communications
1785 1827 680 124 AppliedTheory Corporation
7029 1724 1018 218 Windstream Communications Inc
10620 1679 309 156 TVCABLE BOGOTA
4323 1623 1098 391 Time Warner Telecom
20115 1597 1543 633 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
17974 2004 1971 PT TELEKOMUNIKASI INDONESIA
1785 1827 1703 AppliedTheory Corporation
18566 1913 1675 Covad Communications
10620 1679 1523 TVCABLE BOGOTA
7545 1596 1510 TPG Internet Pty Ltd
7029 1724 1506 Windstream Communications Inc
23456 3283 1505 >>UNKNOWN<<
7552 1398 1391 Vietel Corporation
4755 1550 1385 Videsh Sanchar Nigam Ltd. Aut
22773 1458 1359 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)
-----------------------------------------------------------

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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:808 /15:1451 /16:12106 /17:6245 /18:10330
/19:20350 /20:28172 /21:27563 /22:36959 /23:35458 /24:195878
/25:74 /26:89 /27:121 /28:296 /29:104 /30:556
/31:73 /32:495

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

ASN No of nets Total ann. Description
6389 2198 3561 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1574 1679 TVCABLE BOGOTA
23456 1573 3283 >>UNKNOWN<<
7029 1413 1724 Windstream Communications Inc
30036 1377 1420 Mediacom Communications Corp
11492 1114 1152 Cable One
7011 1057 1182 Citizens Utilities
1785 1053 1827 AppliedTheory Corporation
22773 947 1458 Cox Communications, Inc.

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

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

1:386 2:298 4:19 5:1 6:3 8:352
12:1959 13:1 14:545 15:13 16:3 17:7
20:10 23:35 24:1686 27:948 31:545 32:149
33:4 34:2 36:4 38:745 40:108 41:2596
42:48 44:3 46:996 47:3 49:257 50:424
52:13 54:2 55:4 56:2 57:45 58:880
59:492 60:340 61:1182 62:1103 63:1964 64:4095
65:2305 66:4011 67:1984 68:1292 69:3305 70:859
71:377 72:1886 73:1 74:2507 75:361 76:349
77:871 78:791 79:492 80:1129 81:842 82:518
83:522 84:632 85:1090 86:416 87:878 88:357
89:1594 90:267 91:4129 92:525 93:1295 94:1330
95:916 96:440 97:276 98:948 99:37 101:210
103:316 106:70 107:52 108:83 109:1040 110:676
111:785 112:324 113:449 114:569 115:688 116:892
117:711 118:885 119:1212 120:334 121:703 122:1610
123:1008 124:1343 125:1358 128:245 129:181 130:165
131:583 132:120 133:21 134:217 135:54 136:212
137:139 138:289 139:133 140:494 141:287 142:390
143:410 144:496 145:58 146:472 147:226 148:692
149:259 150:153 151:191 152:446 153:177 154:6
155:395 156:203 157:360 158:146 159:463 160:325
161:207 162:339 163:177 164:507 165:403 166:537
167:434 168:751 169:147 170:860 171:83 172:1
173:1672 174:658 175:411 176:212 177:275 178:1000
180:1091 181:31 182:630 183:219 184:383 185:1
186:1463 187:671 188:945 189:869 190:5173 192:5942
193:5033 194:3555 195:3094 196:1252 197:176 198:3607
199:4134 200:5521 201:1639 202:8513 203:8489 204:4260
205:2367 206:2732 207:2839 208:4157 209:3542 210:2697
211:1471 212:2136 213:1783 214:780 215:76 216:4939
217:1613 218:562 219:340 220:1229 221:514 222:343
223:263

End of report
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