BGP Routing: 2011-05-22

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, May 28, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 29 May, 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: 363287
Prefixes after maximum aggregation: 163540
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 176406
Total ASes present in the Internet Routing Table: 37733
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31599
Origin ASes announcing only one prefix: 15080
Transit ASes present in the Internet Routing Table: 5025
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 3389
Unregistered ASNs in the Routing Table: 395
Number of 32-bit ASNs allocated by the RIRs: 1392
Number of 32-bit ASNs visible in the Routing Table: 1109
Prefixes from 32-bit ASNs in the Routing Table: 2559
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 171
Number of addresses announced to Internet: 2440494823
Equivalent to 145 /8s, 118 /16s and 254 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 151134

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

Prefixes being announced by APNIC Region ASes: 87279
Total APNIC prefixes after maximum aggregation: 28988
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83780
Unique aggregates announced from the APNIC address blocks: 35643
APNIC Region origin ASes present in the Internet Routing Table: 4456
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 619155905
Equivalent to 36 /8s, 231 /16s and 145 /24s
Percentage of available APNIC address space announced: 78.5

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 143580
Total ARIN prefixes after maximum aggregation: 73429
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115553
Unique aggregates announced from the ARIN address blocks: 45827
ARIN Region origin ASes present in the Internet Routing Table: 14414
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5481
ARIN Region transit ASes present in the Internet Routing Table: 1467
Average ARIN Region AS path length visible: 3.6
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: 801961496
Equivalent to 47 /8s, 204 /16s and 246 /24s
Percentage of available ARIN address space announced: 63.7

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: 88247
Total RIPE prefixes after maximum aggregation: 48808
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 80861
Unique aggregates announced from the RIPE address blocks: 51829
RIPE Region origin ASes present in the Internet Routing Table: 15665
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7769
RIPE Region transit ASes present in the Internet Routing Table: 2446
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 821
Number of RIPE addresses announced to Internet: 474704492
Equivalent to 28 /8s, 75 /16s and 106 /24s
Percentage of available RIPE address space announced: 76.5

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: 33149
Total LACNIC prefixes after maximum aggregation: 7560
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32219
Unique aggregates announced from the LACNIC address blocks: 16861
LACNIC Region origin ASes present in the Internet Routing Table: 1459
LACNIC Prefixes per ASN: 22.08
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 262
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 223
Number of LACNIC addresses announced to Internet: 84019464
Equivalent to 5 /8s, 2 /16s and 9 /24s
Percentage of available LACNIC address space announced: 55.6

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

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

Prefixes being announced by AfriNIC Region ASes: 8165
Total AfriNIC prefixes after maximum aggregation: 1907
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6345
Unique aggregates announced from the AfriNIC address blocks: 1927
AfriNIC Region origin ASes present in the Internet Routing Table: 454
AfriNIC Prefixes per ASN: 13.98
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23204864
Equivalent to 1 /8s, 98 /16s and 20 /24s
Percentage of available AfriNIC address space announced: 34.6

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 1903 9508 619 Korea Telecom (KIX)
17974 1844 508 33 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1472 634 168 Videsh Sanchar Nigam Ltd. Aut
24560 1155 337 187 Bharti Airtel Ltd.
7552 1140 1064 7 Vietel Corporation
9583 1077 80 508 Sify Limited
9829 1037 875 51 BSNL National Internet Backbo
17488 943 170 104 Hathway IP Over Cable Interne
18101 929 116 139 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 3644 3822 255 bellsouth.net, inc.
4323 1967 1081 398 Time Warner Telecom
18566 1919 363 270 Covad Communications
1785 1790 681 124 AppliedTheory Corporation
6478 1704 317 50 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
19262 1490 4919 308 Verizon Global Networks
7018 1374 7101 897 AT&T WorldNet Services
22773 1335 2897 88 Cox Communications, Inc.
11492 1280 240 15 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
286 1013 798 176 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
6830 517 1780 319 UPC Distribution Services
3292 516 2078 398 TDC Tele Danmark
34984 516 106 179 Tellcom Iletisim Hizmetleri
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
3320 426 8152 371 Deutsche Telekom AG
12479 426 577 6 Uni2 Autonomous System

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 1492 274 156 TVCABLE BOGOTA
8151 1374 2691 360 Uninet S.A. de C.V.
28573 1321 991 88 Types of queries are: POCs, o
7303 957 504 151 Telecom Argentina Stet-France
6503 733 354 74 AVANTEL, S.A.
14420 670 54 91 Types of queries are: POCs, o
22047 565 310 15 Types of queries are: POCs, o
3816 522 227 100 COLOMBIA TELECOMUNICACIONES S
13489 516 262 123 Orbitel S.A. E.S.P.
27947 505 53 46 Telconet S.A

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 872 445 11 TEDATA
24863 786 147 37 LINKdotNET AS number
15475 542 90 8 Nile Online
36992 290 315 19 Etisalat MISR
16637 285 441 87 Johnnic e-Ventures
3741 263 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 208 78 10 RAYA Telecom - Egypt
29571 162 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 3644 3822 255 bellsouth.net, inc.
23456 2559 631 1377 >>UNKNOWN<<
4323 1967 1081 398 Time Warner Telecom
18566 1919 363 270 Covad Communications
4766 1903 9508 619 Korea Telecom (KIX)
17974 1844 508 33 PT TELEKOMUNIKASI INDONESIA
1785 1790 681 124 AppliedTheory Corporation
6478 1704 317 50 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
7545 1537 301 86 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
17974 1844 1811 PT TELEKOMUNIKASI INDONESIA
1785 1790 1666 AppliedTheory Corporation
6478 1704 1654 AT&T Worldnet Services
18566 1919 1649 Covad Communications
4323 1967 1569 Time Warner Telecom
7545 1537 1451 TPG Internet Pty Ltd
10620 1492 1336 TVCABLE BOGOTA
4755 1472 1304 Videsh Sanchar Nigam Ltd. Aut
4766 1903 1284 Korea Telecom (KIX)
11492 1280 1265 Cable One

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 1239 Sprint
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
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS

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 /8:22 /9:12 /10:28 /11:80 /12:228
/13:460 /14:802 /15:1427 /16:11910 /17:6089 /18:10069
/19:19849 /20:26440 /21:26343 /22:34552 /23:33667 /24:188502
/25:378 /26:349 /27:173 /28:294 /29:237 /30:667
/31:68 /32:641

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

ASN No of nets Total ann. Description
6389 2244 3644 bellsouth.net, inc.
18566 1876 1919 Covad Communications
6478 1658 1704 AT&T Worldnet Services
10620 1382 1492 TVCABLE BOGOTA
23456 1241 2559 >>UNKNOWN<<
11492 1226 1280 Cable One
7011 1061 1160 Citizens Utilities
1785 1051 1790 AppliedTheory Corporation
4323 882 1967 Time Warner Telecom
286 873 1013 KPNQwest Backbone AS

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

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

1:280 2:66 4:20 5:1 6:3 8:354
12:1985 13:1 14:462 15:15 16:3 17:8
20:10 23:7 24:1658 27:780 31:355 32:126
33:4 34:2 37:1 38:738 40:101 41:2523
42:5 44:3 46:936 47:3 49:199 50:422
52:13 54:2 55:5 56:2 57:39 58:846
59:481 60:387 61:1236 62:1061 63:1950 64:3978
65:2294 66:4171 67:1901 68:1262 69:3098 70:751
71:357 72:1924 73:3 74:2411 75:316 76:349
77:908 78:707 79:485 80:1106 81:832 82:509
83:456 84:697 85:1073 86:609 87:780 88:336
89:1574 90:203 91:3804 92:518 93:1081 94:1314
95:823 96:506 97:250 98:859 99:35 101:57
103:32 106:1 107:7 108:85 109:953 110:602
111:708 112:304 113:398 114:538 115:671 116:963
117:692 118:826 119:1132 120:308 121:672 122:1621
123:999 124:1259 125:1229 128:263 129:176 130:164
131:571 132:109 133:19 134:214 135:48 136:212
137:143 138:301 139:123 140:482 141:239 142:404
143:401 144:485 145:54 146:448 147:220 148:591
149:243 150:168 151:186 152:327 153:178 154:3
155:397 156:194 157:354 158:138 159:389 160:314
161:207 162:282 163:164 164:499 165:373 166:515
167:428 168:732 169:156 170:803 171:77 172:1
173:1577 174:553 175:370 176:129 177:155 178:993
180:832 181:17 182:454 183:209 184:366 185:1
186:1176 187:776 188:863 189:905 190:4828 192:5871
193:4915 194:3554 195:3123 196:1227 197:19 198:3608
199:3915 200:5545 201:1496 202:8320 203:8397 204:4182
205:2327 206:2753 207:2879 208:3984 209:3485 210:2729
211:1431 212:2041 213:1787 214:732 215:72 216:4925
217:1637 218:569 219:366 220:1203 221:492 222:342
223:147

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 29 May, 2011

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

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

BGP routing table entries examined: 358560
Prefixes after maximum aggregation: 162104
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176485
Total ASes present in the Internet Routing Table: 37690
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31486
Origin ASes announcing only one prefix: 15125
Transit ASes present in the Internet Routing Table: 5099
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 710
Unregistered ASNs in the Routing Table: 376
Number of 32-bit ASNs allocated by the RIRs: 1392
Number of 32-bit ASNs visible in the Routing Table: 1105
Prefixes from 32-bit ASNs in the Routing Table: 2538
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2439881920
Equivalent to 145 /8s, 109 /16s and 164 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 149371

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

Prefixes being announced by APNIC Region ASes: 89219
Total APNIC prefixes after maximum aggregation: 30035
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 85653
Unique aggregates announced from the APNIC address blocks: 35702
APNIC Region origin ASes present in the Internet Routing Table: 4465
APNIC Prefixes per ASN: 19.18
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 619290912
Equivalent to 36 /8s, 233 /16s and 161 /24s
Percentage of available APNIC address space announced: 78.5

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

Prefixes being announced by ARIN Region ASes: 140441
Total ARIN prefixes after maximum aggregation: 71383
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112719
Unique aggregates announced from the ARIN address blocks: 45895
ARIN Region origin ASes present in the Internet Routing Table: 14396
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5492
ARIN Region transit ASes present in the Internet Routing Table: 1504
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 801928704
Equivalent to 47 /8s, 204 /16s and 118 /24s
Percentage of available ARIN address space announced: 63.7

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

Prefixes being announced by RIPE Region ASes: 85100
Total RIPE prefixes after maximum aggregation: 48418
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78492
Unique aggregates announced from the RIPE address blocks: 51930
RIPE Region origin ASes present in the Internet Routing Table: 15622
RIPE Prefixes per ASN: 5.02
RIPE Region origin ASes announcing only one prefix: 7811
RIPE Region transit ASes present in the Internet Routing Table: 2457
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 816
Number of RIPE addresses announced to Internet: 474190336
Equivalent to 28 /8s, 67 /16s and 146 /24s
Percentage of available RIPE address space announced: 76.4

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

Prefixes being announced by LACNIC Region ASes: 33025
Total LACNIC prefixes after maximum aggregation: 7541
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32100
Unique aggregates announced from the LACNIC address blocks: 16845
LACNIC Region origin ASes present in the Internet Routing Table: 1460
LACNIC Prefixes per ASN: 21.99
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 267
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 224
Number of LACNIC addresses announced to Internet: 84017408
Equivalent to 5 /8s, 2 /16s and 1 /24s
Percentage of available LACNIC address space announced: 55.6

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

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

Prefixes being announced by AfriNIC Region ASes: 8013
Total AfriNIC prefixes after maximum aggregation: 1897
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6338
Unique aggregates announced from the AfriNIC address blocks: 1925
AfriNIC Region origin ASes present in the Internet Routing Table: 454
AfriNIC Prefixes per ASN: 13.96
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23190784
Equivalent to 1 /8s, 97 /16s and 221 /24s
Percentage of available AfriNIC address space announced: 34.6

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 2461 9500 922 Korea Telecom (KIX)
17974 1846 516 32 PT TELEKOMUNIKASI INDONESIA
7545 1536 301 85 TPG Internet Pty Ltd
4755 1473 635 169 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1140 1064 7 Vietel Corporation
4808 1081 2141 302 CNCGROUP IP network: China169
9583 1076 79 507 Sify Limited
9829 1035 875 51 BSNL National Internet Backbo
18101 930 116 140 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 3641 3822 254 bellsouth.net, inc.
4323 1972 1081 399 Time Warner Telecom
18566 1875 355 271 Covad Communications
1785 1789 681 123 PaeTec Communications, Inc.
6478 1704 317 50 AT&T Worldnet Services
20115 1535 1540 633 Charter Communications
19262 1490 4935 308 Verizon Global Networks
7018 1363 7068 887 AT&T WorldNet Services
22773 1335 2897 88 Cox Communications, Inc.
11492 1280 240 15 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
6830 516 1780 319 UPC Distribution Services
34984 516 106 179 BILISIM TELEKOM
3292 462 2078 397 TDC Tele Danmark
20940 455 133 350 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 429 577 6 Uni2 Autonomous System
3320 426 8152 371 Deutsche Telekom AG
8551 406 355 45 Bezeq International
3301 398 1839 347 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 1492 274 156 TVCABLE BOGOTA
8151 1376 2710 364 UniNet S.A. de C.V.
28573 1319 991 88 NET Servicos de Comunicao S.A
7303 958 504 152 Telecom Argentina Stet-France
6503 731 354 73 AVANTEL, S.A.
14420 670 54 91 CORPORACION NACIONAL DE TELEC
22047 565 310 15 VTR PUNTO NET S.A.
3816 522 227 101 Empresa Nacional de Telecomun
13489 514 262 123 Orbitel S.A. E.S.P.
11172 495 84 84 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
8452 871 445 11 TEDATA
24863 786 147 37 LINKdotNET AS number
15475 543 90 8 Nile Online
36992 290 315 19 Etisalat MISR
3741 263 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 12 11 Starcomms Nigeria Limited
24835 208 78 10 RAYA Telecom - Egypt
29571 163 19 12 Ci Telecom Autonomous system
16637 143 441 86 MTN Network Solutions

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 3641 3822 254 bellsouth.net, inc.
23456 2538 632 1368 32-bit ASN transition
4766 2461 9500 922 Korea Telecom (KIX)
4323 1972 1081 399 Time Warner Telecom
18566 1875 355 271 Covad Communications
17974 1846 516 32 PT TELEKOMUNIKASI INDONESIA
1785 1789 681 123 PaeTec Communications, Inc.
6478 1704 317 50 AT&T Worldnet Services
7545 1536 301 85 TPG Internet Pty Ltd
20115 1535 1540 633 Charter Communications

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 1846 1814 PT TELEKOMUNIKASI INDONESIA
1785 1789 1666 PaeTec Communications, Inc.
6478 1704 1654 AT&T Worldnet Services
18566 1875 1604 Covad Communications
4323 1972 1573 Time Warner Telecom
4766 2461 1539 Korea Telecom (KIX)
7545 1536 1451 TPG Internet Pty Ltd
10620 1492 1336 TVCABLE BOGOTA
4755 1473 1304 TATA Communications formerly
11492 1280 1265 Cable One

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

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 /8:21 /9:12 /10:28 /11:79 /12:228
/13:460 /14:794 /15:1395 /16:11761 /17:5837 /18:9759
/19:19318 /20:25717 /21:25922 /22:34161 /23:33139 /24:186678
/25:1089 /26:1271 /27:713 /28:162 /29:8 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2242 3641 bellsouth.net, inc.
18566 1838 1875 Covad Communications
6478 1658 1704 AT&T Worldnet Services
10620 1382 1492 TVCABLE BOGOTA
23456 1227 2538 32-bit ASN transition
11492 1226 1280 Cable One
7011 1061 1160 Citizens Utilities
1785 1051 1789 PaeTec Communications, Inc.
4323 885 1972 Time Warner Telecom
22773 850 1335 Cox Communications, Inc.

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

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

1:279 2:46 4:16 5:1 6:3 8:353
12:1980 13:1 14:464 15:15 16:3 17:8
20:10 23:7 24:1645 27:773 31:352 32:60
33:4 34:2 37:1 38:737 40:101 41:2521
42:5 44:3 46:930 47:3 49:199 50:422
52:13 54:2 55:5 56:2 57:29 58:844
59:479 60:387 61:1234 62:1049 63:1937 64:3955
65:2293 66:4145 67:1874 68:1085 69:2992 70:706
71:352 72:1890 73:1 74:2358 75:302 76:340
77:870 78:703 79:464 80:1099 81:823 82:488
83:442 84:677 85:1061 86:593 87:753 88:330
89:1534 90:203 91:3785 92:517 93:1051 94:1284
95:804 96:506 97:250 98:852 99:35 101:57
103:29 106:1 107:7 108:85 109:947 110:602
111:708 112:304 113:399 114:535 115:668 116:948
117:692 118:828 119:1139 120:307 121:670 122:1621
123:999 124:1264 125:1229 128:262 129:173 130:164
131:571 132:109 133:19 134:213 135:48 136:212
137:143 138:300 139:111 140:482 141:239 142:401
143:399 144:485 145:54 146:447 147:209 148:591
149:242 150:168 151:185 152:325 153:178 154:3
155:397 156:194 157:353 158:138 159:389 160:314
161:206 162:282 163:164 164:499 165:355 166:515
167:428 168:732 169:155 170:800 171:77 172:1
173:1559 174:551 175:370 176:129 177:155 178:980
180:849 181:17 182:453 183:208 184:285 185:1
186:1176 187:777 188:843 189:906 190:4820 192:5841
193:4898 194:3509 195:3002 196:1219 197:19 198:3572
199:3905 200:5542 201:1484 202:8319 203:8394 204:4173
205:2323 206:2677 207:2874 208:3968 209:3471 210:2736
211:1395 212:1987 213:1735 214:731 215:72 216:4901
217:1630 218:564 219:363 220:1201 221:490 222:342
223:149

End of report
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Friday, May 27, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 28 May, 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: 363186
Prefixes after maximum aggregation: 163514
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 177396
Total ASes present in the Internet Routing Table: 37740
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31588
Origin ASes announcing only one prefix: 15090
Transit ASes present in the Internet Routing Table: 5043
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 3368
Unregistered ASNs in the Routing Table: 396
Number of 32-bit ASNs allocated by the RIRs: 1389
Number of 32-bit ASNs visible in the Routing Table: 1109
Prefixes from 32-bit ASNs in the Routing Table: 2540
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 292
Number of addresses announced to Internet: 2437723111
Equivalent to 145 /8s, 76 /16s and 179 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 150912

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

Prefixes being announced by APNIC Region ASes: 87296
Total APNIC prefixes after maximum aggregation: 28951
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 83796
Unique aggregates announced from the APNIC address blocks: 36641
APNIC Region origin ASes present in the Internet Routing Table: 4451
APNIC Prefixes per ASN: 18.83
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 686
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 616551873
Equivalent to 36 /8s, 191 /16s and 213 /24s
Percentage of available APNIC address space announced: 78.2

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

Prefixes being announced by ARIN Region ASes: 143578
Total ARIN prefixes after maximum aggregation: 73448
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115555
Unique aggregates announced from the ARIN address blocks: 45830
ARIN Region origin ASes present in the Internet Routing Table: 14415
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5482
ARIN Region transit ASes present in the Internet Routing Table: 1478
Average ARIN Region AS path length visible: 3.6
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: 801966360
Equivalent to 47 /8s, 205 /16s and 9 /24s
Percentage of available ARIN address space announced: 63.7

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

Prefixes being announced by RIPE Region ASes: 88234
Total RIPE prefixes after maximum aggregation: 48826
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 80731
Unique aggregates announced from the RIPE address blocks: 51716
RIPE Region origin ASes present in the Internet Routing Table: 15677
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7781
RIPE Region transit ASes present in the Internet Routing Table: 2452
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 820
Number of RIPE addresses announced to Internet: 474806380
Equivalent to 28 /8s, 76 /16s and 248 /24s
Percentage of available RIPE address space announced: 76.5

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

Prefixes being announced by LACNIC Region ASes: 33136
Total LACNIC prefixes after maximum aggregation: 7550
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32187
Unique aggregates announced from the LACNIC address blocks: 16853
LACNIC Region origin ASes present in the Internet Routing Table: 1458
LACNIC Prefixes per ASN: 22.08
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 224
Number of LACNIC addresses announced to Internet: 84022536
Equivalent to 5 /8s, 2 /16s and 21 /24s
Percentage of available LACNIC address space announced: 55.6

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

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

Prefixes being announced by AfriNIC Region ASes: 8097
Total AfriNIC prefixes after maximum aggregation: 1894
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6262
Unique aggregates announced from the AfriNIC address blocks: 1904
AfriNIC Region origin ASes present in the Internet Routing Table: 455
AfriNIC Prefixes per ASN: 13.76
AfriNIC Region origin ASes announcing only one prefix: 138
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23146752
Equivalent to 1 /8s, 97 /16s and 49 /24s
Percentage of available AfriNIC address space announced: 34.5

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 1902 9492 618 Korea Telecom (KIX)
17974 1851 508 33 PT TELEKOMUNIKASI INDONESIA
7545 1539 301 87 TPG Internet Pty Ltd
4755 1472 634 168 Videsh Sanchar Nigam Ltd. Aut
24560 1155 337 187 Bharti Airtel Ltd.
7552 1140 1064 7 Vietel Corporation
9583 1077 80 508 Sify Limited
9829 1040 875 51 BSNL National Internet Backbo
17488 943 170 104 Hathway IP Over Cable Interne
18101 931 116 141 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 3644 3822 255 bellsouth.net, inc.
4323 1967 1081 398 Time Warner Telecom
18566 1919 363 270 Covad Communications
1785 1790 681 124 AppliedTheory Corporation
6478 1704 317 50 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
19262 1490 4919 308 Verizon Global Networks
7018 1373 7101 896 AT&T WorldNet Services
22773 1335 2897 88 Cox Communications, Inc.
11492 1280 240 15 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
286 1013 798 176 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
6830 517 1780 319 UPC Distribution Services
3292 516 2078 398 TDC Tele Danmark
34984 516 106 179 Tellcom Iletisim Hizmetleri
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 428 577 6 Uni2 Autonomous System
3320 425 8152 370 Deutsche Telekom AG

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 1492 274 156 TVCABLE BOGOTA
8151 1375 2691 360 Uninet S.A. de C.V.
28573 1321 991 88 Types of queries are: POCs, o
7303 958 504 150 Telecom Argentina Stet-France
6503 729 354 71 AVANTEL, S.A.
14420 670 54 91 Types of queries are: POCs, o
22047 565 310 15 Types of queries are: POCs, o
3816 523 227 100 COLOMBIA TELECOMUNICACIONES S
13489 516 262 123 Orbitel S.A. E.S.P.
27947 504 53 46 Telconet S.A

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 871 445 11 TEDATA
24863 787 147 37 LINKdotNET AS number
15475 544 90 8 Nile Online
16637 294 441 87 Johnnic e-Ventures
36992 290 315 18 Etisalat MISR
3741 263 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 208 78 10 RAYA Telecom - Egypt
33776 202 11 8 Starcomms Nigeria Limited
29571 162 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 3644 3822 255 bellsouth.net, inc.
23456 2540 633 1375 >>UNKNOWN<<
4323 1967 1081 398 Time Warner Telecom
18566 1919 363 270 Covad Communications
4766 1902 9492 618 Korea Telecom (KIX)
17974 1851 508 33 PT TELEKOMUNIKASI INDONESIA
1785 1790 681 124 AppliedTheory Corporation
6478 1704 317 50 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
7545 1539 301 87 TPG Internet Pty Ltd

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

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

ASN No of nets Net Savings Description
17974 1851 1818 PT TELEKOMUNIKASI INDONESIA
1785 1790 1666 AppliedTheory Corporation
6478 1704 1654 AT&T Worldnet Services
18566 1919 1649 Covad Communications
4323 1967 1569 Time Warner Telecom
7545 1539 1452 TPG Internet Pty Ltd
10620 1492 1336 TVCABLE BOGOTA
4755 1472 1304 Videsh Sanchar Nigam Ltd. Aut
4766 1902 1284 Korea Telecom (KIX)
11492 1280 1265 Cable One

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 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/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 /8:20 /9:12 /10:28 /11:80 /12:228
/13:460 /14:802 /15:1426 /16:11908 /17:6084 /18:10066
/19:19842 /20:26447 /21:26333 /22:34550 /23:33664 /24:188430
/25:377 /26:349 /27:173 /28:295 /29:238 /30:668
/31:68 /32:638

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

ASN No of nets Total ann. Description
6389 2244 3644 bellsouth.net, inc.
18566 1876 1919 Covad Communications
6478 1658 1704 AT&T Worldnet Services
10620 1382 1492 TVCABLE BOGOTA
23456 1238 2540 >>UNKNOWN<<
11492 1226 1280 Cable One
7011 1061 1160 Citizens Utilities
1785 1051 1790 AppliedTheory Corporation
4323 882 1967 Time Warner Telecom
286 873 1013 KPNQwest Backbone AS

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

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

1:280 2:65 4:20 5:1 6:3 8:354
12:1987 13:1 14:461 15:15 16:3 17:8
20:10 23:7 24:1657 27:778 31:354 32:126
33:4 34:2 37:1 38:739 40:101 41:2447
42:5 44:3 46:936 47:3 49:199 50:422
52:13 54:2 55:5 56:2 57:40 58:848
59:481 60:387 61:1238 62:1061 63:1952 64:3978
65:2295 66:4172 67:1901 68:1262 69:3098 70:751
71:357 72:1924 73:3 74:2412 75:316 76:349
77:909 78:710 79:485 80:1106 81:828 82:510
83:455 84:696 85:1073 86:608 87:781 88:336
89:1575 90:203 91:3807 92:518 93:1082 94:1309
95:825 96:506 97:249 98:858 99:35 101:58
103:31 106:1 107:7 108:84 109:954 110:584
111:712 112:304 113:398 114:538 115:673 116:965
117:693 118:827 119:1139 120:278 121:671 122:1621
123:999 124:1263 125:1229 128:263 129:176 130:164
131:571 132:109 133:19 134:214 135:48 136:214
137:143 138:301 139:124 140:482 141:239 142:406
143:399 144:484 145:54 146:448 147:219 148:590
149:242 150:168 151:186 152:327 153:177 154:3
155:397 156:194 157:355 158:137 159:388 160:314
161:207 162:282 163:164 164:499 165:373 166:515
167:428 168:732 169:156 170:804 171:77 172:1
173:1576 174:552 175:366 176:129 177:141 178:992
180:847 181:17 182:454 183:209 184:366 185:1
186:1177 187:777 188:862 189:904 190:4824 192:5870
193:4915 194:3554 195:3121 196:1234 197:19 198:3609
199:3916 200:5537 201:1497 202:8320 203:8428 204:4178
205:2336 206:2754 207:2878 208:3978 209:3485 210:2742
211:1430 212:2044 213:1786 214:731 215:72 216:4924
217:1638 218:569 219:360 220:1204 221:492 222:341
223:149

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 Sat 28 May, 2011

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

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

BGP routing table entries examined: 358362
Prefixes after maximum aggregation: 162138
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 177469
Total ASes present in the Internet Routing Table: 37701
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31497
Origin ASes announcing only one prefix: 15121
Transit ASes present in the Internet Routing Table: 5100
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 705
Unregistered ASNs in the Routing Table: 376
Number of 32-bit ASNs allocated by the RIRs: 1389
Number of 32-bit ASNs visible in the Routing Table: 1104
Prefixes from 32-bit ASNs in the Routing Table: 2503
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 289
Number of addresses announced to Internet: 2437036992
Equivalent to 145 /8s, 66 /16s and 59 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 149159

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

Prefixes being announced by APNIC Region ASes: 89221
Total APNIC prefixes after maximum aggregation: 30038
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 85654
Unique aggregates announced from the APNIC address blocks: 36698
APNIC Region origin ASes present in the Internet Routing Table: 4461
APNIC Prefixes per ASN: 19.20
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 616629792
Equivalent to 36 /8s, 193 /16s and 6 /24s
Percentage of available APNIC address space announced: 78.2

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

Prefixes being announced by ARIN Region ASes: 140454
Total ARIN prefixes after maximum aggregation: 71446
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112718
Unique aggregates announced from the ARIN address blocks: 45895
ARIN Region origin ASes present in the Internet Routing Table: 14398
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5492
ARIN Region transit ASes present in the Internet Routing Table: 1508
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 801841408
Equivalent to 47 /8s, 203 /16s and 33 /24s
Percentage of available ARIN address space announced: 63.7

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

Prefixes being announced by RIPE Region ASes: 84958
Total RIPE prefixes after maximum aggregation: 48453
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 78225
Unique aggregates announced from the RIPE address blocks: 51823
RIPE Region origin ASes present in the Internet Routing Table: 15639
RIPE Prefixes per ASN: 5.00
RIPE Region origin ASes announcing only one prefix: 7820
RIPE Region transit ASes present in the Internet Routing Table: 2461
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 815
Number of RIPE addresses announced to Internet: 474301952
Equivalent to 28 /8s, 69 /16s and 70 /24s
Percentage of available RIPE address space announced: 76.4

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

Prefixes being announced by LACNIC Region ASes: 32990
Total LACNIC prefixes after maximum aggregation: 7492
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32033
Unique aggregates announced from the LACNIC address blocks: 16834
LACNIC Region origin ASes present in the Internet Routing Table: 1458
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 224
Number of LACNIC addresses announced to Internet: 83999744
Equivalent to 5 /8s, 1 /16s and 188 /24s
Percentage of available LACNIC address space announced: 55.6

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

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

Prefixes being announced by AfriNIC Region ASes: 8016
Total AfriNIC prefixes after maximum aggregation: 1888
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6339
Unique aggregates announced from the AfriNIC address blocks: 1891
AfriNIC Region origin ASes present in the Internet Routing Table: 452
AfriNIC Prefixes per ASN: 14.02
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23157760
Equivalent to 1 /8s, 97 /16s and 92 /24s
Percentage of available AfriNIC address space announced: 34.5

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 2461 9500 922 Korea Telecom (KIX)
17974 1852 516 32 PT TELEKOMUNIKASI INDONESIA
7545 1534 301 85 TPG Internet Pty Ltd
4755 1473 635 169 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1140 1064 7 Vietel Corporation
4808 1081 2141 302 CNCGROUP IP network: China169
9583 1076 79 507 Sify Limited
9829 1035 873 54 BSNL National Internet Backbo
18101 931 116 141 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 3641 3822 254 bellsouth.net, inc.
4323 1972 1081 399 Time Warner Telecom
18566 1875 355 271 Covad Communications
1785 1789 681 123 PaeTec Communications, Inc.
6478 1704 317 50 AT&T Worldnet Services
20115 1535 1540 633 Charter Communications
19262 1480 4916 330 Verizon Global Networks
7018 1363 7068 887 AT&T WorldNet Services
22773 1335 2897 88 Cox Communications, Inc.
11492 1280 240 15 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
6830 516 1780 319 UPC Distribution Services
34984 516 106 179 BILISIM TELEKOM
3292 462 2078 397 TDC Tele Danmark
20940 456 133 350 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 430 577 6 Uni2 Autonomous System
3320 426 8152 371 Deutsche Telekom AG
8551 406 355 45 Bezeq International
3301 398 1839 347 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 1492 274 156 TVCABLE BOGOTA
8151 1379 2710 364 UniNet S.A. de C.V.
28573 1321 991 88 NET Servicos de Comunicao S.A
7303 958 504 150 Telecom Argentina Stet-France
6503 727 354 70 AVANTEL, S.A.
14420 670 54 91 CORPORACION NACIONAL DE TELEC
22047 565 310 15 VTR PUNTO NET S.A.
3816 539 227 101 Empresa Nacional de Telecomun
13489 515 262 121 Orbitel S.A. E.S.P.
11172 495 84 84 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
8452 871 445 11 TEDATA
24863 787 147 37 LINKdotNET AS number
15475 543 90 8 Nile Online
36992 290 315 18 Etisalat MISR
3741 263 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 208 78 10 RAYA Telecom - Egypt
33776 202 11 8 Starcomms Nigeria Limited
29571 163 19 12 Ci Telecom Autonomous system
16637 150 441 86 MTN Network Solutions

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 3641 3822 254 bellsouth.net, inc.
23456 2503 631 1363 32-bit ASN transition
4766 2461 9500 922 Korea Telecom (KIX)
4323 1972 1081 399 Time Warner Telecom
18566 1875 355 271 Covad Communications
17974 1852 516 32 PT TELEKOMUNIKASI INDONESIA
1785 1789 681 123 PaeTec Communications, Inc.
6478 1704 317 50 AT&T Worldnet Services
20115 1535 1540 633 Charter Communications
7545 1534 301 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 1852 1820 PT TELEKOMUNIKASI INDONESIA
1785 1789 1666 PaeTec Communications, Inc.
6478 1704 1654 AT&T Worldnet Services
18566 1875 1604 Covad Communications
4323 1972 1573 Time Warner Telecom
4766 2461 1539 Korea Telecom (KIX)
7545 1534 1449 TPG Internet Pty Ltd
10620 1492 1336 TVCABLE BOGOTA
4755 1473 1304 TATA Communications formerly
11492 1280 1265 Cable One

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

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

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

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 /8:20 /9:12 /10:28 /11:79 /12:228
/13:460 /14:794 /15:1394 /16:11758 /17:5834 /18:9760
/19:19296 /20:25693 /21:25898 /22:34097 /23:33118 /24:186639
/25:1090 /26:1269 /27:713 /28:166 /29:8 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2242 3641 bellsouth.net, inc.
18566 1838 1875 Covad Communications
6478 1658 1704 AT&T Worldnet Services
10620 1382 1492 TVCABLE BOGOTA
11492 1226 1280 Cable One
23456 1220 2503 32-bit ASN transition
7011 1061 1160 Citizens Utilities
1785 1051 1789 PaeTec Communications, Inc.
4323 885 1972 Time Warner Telecom
22773 850 1335 Cox Communications, Inc.

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

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

1:279 2:48 4:16 5:1 6:3 8:353
12:1984 13:1 14:461 15:15 16:3 17:8
20:10 23:7 24:1645 27:774 31:351 32:60
33:4 34:2 37:1 38:739 40:101 41:2527
42:5 44:3 46:930 47:3 49:195 50:422
52:13 54:2 55:6 56:2 57:30 58:846
59:479 60:387 61:1235 62:1044 63:1940 64:3947
65:2293 66:4148 67:1873 68:1085 69:2992 70:706
71:352 72:1891 73:1 74:2358 75:302 76:341
77:870 78:706 79:464 80:1083 81:823 82:494
83:437 84:677 85:1061 86:593 87:754 88:330
89:1527 90:203 91:3788 92:517 93:1049 94:1280
95:802 96:506 97:249 98:850 99:35 101:58
103:28 106:1 107:7 108:84 109:949 110:600
111:712 112:304 113:400 114:535 115:671 116:946
117:693 118:827 119:1146 120:308 121:670 122:1621
123:999 124:1262 125:1230 128:262 129:173 130:164
131:571 132:109 133:19 134:213 135:48 136:214
137:143 138:300 139:112 140:482 141:239 142:403
143:400 144:483 145:54 146:447 147:209 148:590
149:242 150:168 151:186 152:325 153:177 154:3
155:397 156:194 157:354 158:137 159:387 160:317
161:207 162:282 163:164 164:498 165:355 166:515
167:428 168:733 169:155 170:805 171:77 172:1
173:1560 174:550 175:370 176:129 177:135 178:988
180:848 181:17 182:453 183:209 184:285 185:1
186:1174 187:770 188:842 189:903 190:4816 192:5840
193:4893 194:3500 195:2985 196:1224 197:19 198:3576
199:3905 200:5537 201:1484 202:8317 203:8405 204:4172
205:2328 206:2677 207:2874 208:3966 209:3471 210:2737
211:1394 212:1989 213:1735 214:729 215:72 216:4905
217:1632 218:565 219:363 220:1201 221:491 222:341
223:147

End of report
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