BGP Routing: 2011-05-08

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 14, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 15 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: 361413
Prefixes after maximum aggregation: 162943
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 176184
Total ASes present in the Internet Routing Table: 37556
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31406
Origin ASes announcing only one prefix: 15030
Transit ASes present in the Internet Routing Table: 5081
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 3162
Unregistered ASNs in the Routing Table: 349
Number of 32-bit ASNs allocated by the RIRs: 1351
Number of 32-bit ASNs visible in the Routing Table: 1069
Prefixes from 32-bit ASNs in the Routing Table: 2414
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 155
Number of addresses announced to Internet: 2426677447
Equivalent to 144 /8s, 164 /16s and 40 /24s
Percentage of available address space announced: 65.5
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 149797

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

Prefixes being announced by APNIC Region ASes: 87458
Total APNIC prefixes after maximum aggregation: 28865
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 83899
Unique aggregates announced from the APNIC address blocks: 36609
APNIC Region origin ASes present in the Internet Routing Table: 4426
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 694
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 614568641
Equivalent to 36 /8s, 161 /16s and 146 /24s
Percentage of available APNIC address space announced: 77.9

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: 143080
Total ARIN prefixes after maximum aggregation: 73439
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115097
Unique aggregates announced from the ARIN address blocks: 45416
ARIN Region origin ASes present in the Internet Routing Table: 14366
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5467
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 4.1
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: 800095000
Equivalent to 47 /8s, 176 /16s and 123 /24s
Percentage of available ARIN address space announced: 63.6

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: 87467
Total RIPE prefixes after maximum aggregation: 48516
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 80135
Unique aggregates announced from the RIPE address blocks: 51297
RIPE Region origin ASes present in the Internet Routing Table: 15621
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 7758
RIPE Region transit ASes present in the Internet Routing Table: 2482
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 792
Number of RIPE addresses announced to Internet: 469346892
Equivalent to 27 /8s, 249 /16s and 170 /24s
Percentage of available RIPE address space announced: 75.6

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: 32855
Total LACNIC prefixes after maximum aggregation: 7523
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31873
Unique aggregates announced from the LACNIC address blocks: 16701
LACNIC Region origin ASes present in the Internet Routing Table: 1450
LACNIC Prefixes per ASN: 21.98
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 212
Number of LACNIC addresses announced to Internet: 83406600
Equivalent to 4 /8s, 248 /16s and 175 /24s
Percentage of available LACNIC address space announced: 55.2

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: 7838
Total AfriNIC prefixes after maximum aggregation: 1871
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6182
Unique aggregates announced from the AfriNIC address blocks: 1914
AfriNIC Region origin ASes present in the Internet Routing Table: 446
AfriNIC Prefixes per ASN: 13.86
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 100
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23108352
Equivalent to 1 /8s, 96 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 34.4

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1891 9485 612 Korea Telecom (KIX)
17974 1826 508 33 PT TELEKOMUNIKASI INDONESIA
7545 1549 301 87 TPG Internet Pty Ltd
4755 1463 374 165 Videsh Sanchar Nigam Ltd. Aut
24560 1148 336 184 Bharti Airtel Ltd.
7552 1105 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1039 874 51 BSNL National Internet Backbo
4808 958 2023 278 CNCGROUP IP network: China169
17488 951 165 103 Hathway IP Over Cable Interne

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 3646 3822 256 bellsouth.net, inc.
4323 1974 1097 396 Time Warner Telecom
18566 1822 357 232 Covad Communications
1785 1777 681 125 AppliedTheory Corporation
6478 1679 314 51 AT&T Worldnet Services
20115 1587 1543 631 Charter Communications
19262 1499 4949 299 Verizon Global Networks
7018 1363 6927 895 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
11492 1279 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 1027 798 176 KPNQwest Backbone AS
9116 540 326 30 Goldenlines main autonomous s
6830 519 1780 320 UPC Distribution Services
3292 517 1998 392 TDC Tele Danmark
34984 512 106 182 Tellcom Iletisim Hizmetleri
20940 453 132 346 Akamai Technologies European
8866 443 134 26 Bulgarian Telecommunication C
29049 442 32 44 AzerSat LLC.
12479 427 577 6 Uni2 Autonomous System
3320 419 7608 366 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 1477 272 152 TVCABLE BOGOTA
8151 1366 2683 356 Uninet S.A. de C.V.
28573 1315 990 86 Types of queries are: POCs, o
7303 930 470 151 Telecom Argentina Stet-France
6503 734 354 74 AVANTEL, S.A.
14420 667 54 91 Types of queries are: POCs, o
22047 555 310 15 Types of queries are: POCs, o
3816 522 227 99 COLOMBIA TELECOMUNICACIONES S
13489 501 242 115 Orbitel S.A. E.S.P.
27947 497 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 891 445 11 TEDATA
24863 783 147 38 LINKdotNET AS number
15475 416 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 206 78 10 RAYA Telecom - Egypt
29571 162 17 11 Ci Telecom Autonomous system
16637 153 441 87 Johnnic e-Ventures

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3646 3822 256 bellsouth.net, inc.
23456 2414 671 1317 >>UNKNOWN<<
4323 1974 1097 396 Time Warner Telecom
4766 1891 9485 612 Korea Telecom (KIX)
17974 1826 508 33 PT TELEKOMUNIKASI INDONESIA
18566 1822 357 232 Covad Communications
1785 1777 681 125 AppliedTheory Corporation
6478 1679 314 51 AT&T Worldnet Services
20115 1587 1543 631 Charter Communications
7545 1549 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 1826 1793 PT TELEKOMUNIKASI INDONESIA
1785 1777 1652 AppliedTheory Corporation
6478 1679 1628 AT&T Worldnet Services
18566 1822 1590 Covad Communications
4323 1974 1578 Time Warner Telecom
7545 1549 1462 TPG Internet Pty Ltd
10620 1477 1325 TVCABLE BOGOTA
4755 1463 1298 Videsh Sanchar Nigam Ltd. Aut
4766 1891 1279 Korea Telecom (KIX)
11492 1279 1264 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
31.222.96.0/22 29119 ServiHosting Autonomous Syste
31.222.100.0/22 29119 ServiHosting Autonomous Syste
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:28 /11:79 /12:223
/13:459 /14:799 /15:1424 /16:11873 /17:6026 /18:10016
/19:19858 /20:26290 /21:26235 /22:34511 /23:33433 /24:187468
/25:376 /26:348 /27:170 /28:283 /29:179 /30:609
/31:62 /32:632

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

ASN No of nets Total ann. Description
6389 2245 3646 bellsouth.net, inc.
18566 1784 1822 Covad Communications
6478 1633 1679 AT&T Worldnet Services
10620 1367 1477 TVCABLE BOGOTA
11492 1225 1279 Cable One
23456 1199 2414 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1050 1777 AppliedTheory Corporation
286 887 1027 KPNQwest Backbone AS
4323 885 1974 Time Warner Telecom

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

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

1:268 2:63 4:18 5:1 6:3 8:354
12:1987 13:1 14:455 15:15 16:3 17:8
20:10 23:7 24:1653 27:747 31:335 32:126
33:4 34:2 37:1 38:732 40:101 41:2510
42:5 44:3 46:905 47:4 49:177 50:401
52:13 55:4 56:2 57:40 58:851 59:482
60:387 61:1259 62:994 63:1939 64:3947 65:2297
66:4165 67:1903 68:1270 69:3094 70:750 71:357
72:1917 73:3 74:2403 75:323 76:350 77:909
78:690 79:483 80:1108 81:825 82:510 83:460
84:639 85:1085 86:615 87:773 88:332 89:1604
90:202 91:3746 92:514 93:1081 94:1282 95:812
96:484 97:246 98:849 99:35 101:59 103:12
106:1 107:6 108:85 109:947 110:587 111:716
112:319 113:399 114:534 115:666 116:970 117:683
118:819 119:1129 120:309 121:681 122:1622 123:1081
124:1257 125:1224 128:260 129:170 130:165 131:565
132:109 133:19 134:219 135:49 136:214 137:143
138:305 139:125 140:480 141:240 142:404 143:390
144:483 145:53 146:438 147:216 148:591 149:243
150:170 151:187 152:312 153:178 154:3 155:395
156:194 157:353 158:131 159:387 160:317 161:207
162:279 163:163 164:499 165:370 166:515 167:431
168:725 169:154 170:793 171:77 172:1 173:1579
174:548 175:369 177:113 178:908 180:843 181:15
182:439 183:205 184:344 185:1 186:1169 187:752
188:852 189:908 190:4805 192:5823 193:4870 194:3530
195:3110 196:1219 197:17 198:3599 199:3901 200:5533
201:1506 202:8361 203:8479 204:4157 205:2330 206:2743
207:2914 208:3979 209:3435 210:2732 211:1421 212:2021
213:1785 214:727 215:70 216:4836 217:1640 218:568
219:372 220:1205 221:486 222:342 223:146

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 15 May, 2011

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

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

BGP routing table entries examined: 356778
Prefixes after maximum aggregation: 161600
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176103
Total ASes present in the Internet Routing Table: 37547
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31381
Origin ASes announcing only one prefix: 15082
Transit ASes present in the Internet Routing Table: 5095
Transit-only ASes present in the Internet Routing Table: 135
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: 631
Unregistered ASNs in the Routing Table: 324
Number of 32-bit ASNs allocated by the RIRs: 1351
Number of 32-bit ASNs visible in the Routing Table: 1071
Prefixes from 32-bit ASNs in the Routing Table: 2406
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 153
Number of addresses announced to Internet: 2425832384
Equivalent to 144 /8s, 151 /16s and 67 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 148251

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

Prefixes being announced by APNIC Region ASes: 89371
Total APNIC prefixes after maximum aggregation: 29957
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 85727
Unique aggregates announced from the APNIC address blocks: 36603
APNIC Region origin ASes present in the Internet Routing Table: 4443
APNIC Prefixes per ASN: 19.29
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 614554400
Equivalent to 36 /8s, 161 /16s and 91 /24s
Percentage of available APNIC address space announced: 77.9

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

Prefixes being announced by ARIN Region ASes: 140036
Total ARIN prefixes after maximum aggregation: 71413
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 112304
Unique aggregates announced from the ARIN address blocks: 45458
ARIN Region origin ASes present in the Internet Routing Table: 14358
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5484
ARIN Region transit ASes present in the Internet Routing Table: 1498
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: 799924224
Equivalent to 47 /8s, 173 /16s and 224 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 84214
Total RIPE prefixes after maximum aggregation: 48145
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 77699
Unique aggregates announced from the RIPE address blocks: 51288
RIPE Region origin ASes present in the Internet Routing Table: 15594
RIPE Prefixes per ASN: 4.98
RIPE Region origin ASes announcing only one prefix: 7805
RIPE Region transit ASes present in the Internet Routing Table: 2459
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 793
Number of RIPE addresses announced to Internet: 468778240
Equivalent to 27 /8s, 240 /16s and 253 /24s
Percentage of available RIPE address space announced: 75.5

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

Prefixes being announced by LACNIC Region ASes: 32718
Total LACNIC prefixes after maximum aggregation: 7490
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31746
Unique aggregates announced from the LACNIC address blocks: 16690
LACNIC Region origin ASes present in the Internet Routing Table: 1448
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 427
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 214
Number of LACNIC addresses announced to Internet: 83394560
Equivalent to 4 /8s, 248 /16s and 128 /24s
Percentage of available LACNIC address space announced: 55.2

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: 7816
Total AfriNIC prefixes after maximum aggregation: 1867
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6172
Unique aggregates announced from the AfriNIC address blocks: 1910
AfriNIC Region origin ASes present in the Internet Routing Table: 447
AfriNIC Prefixes per ASN: 13.81
AfriNIC Region origin ASes announcing only one prefix: 136
AfriNIC Region transit ASes present in the Internet Routing Table: 97
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: 23107328
Equivalent to 1 /8s, 96 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 34.4

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2452 9493 916 Korea Telecom (KIX)
17974 1827 516 32 PT TELEKOMUNIKASI INDONESIA
7545 1548 301 86 TPG Internet Pty Ltd
4755 1461 634 167 TATA Communications formerly
24560 1147 336 184 Bharti Airtel Ltd., Telemedia
7552 1105 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
4808 1077 2138 299 CNCGROUP IP network: China169
9829 1039 874 51 BSNL National Internet Backbo
17488 936 165 103 Hathway IP Over Cable Interne

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 3647 3822 255 bellsouth.net, inc.
4323 1978 1081 396 Time Warner Telecom
18566 1822 357 232 Covad Communications
1785 1776 681 124 PaeTec Communications, Inc.
6478 1679 314 51 AT&T Worldnet Services
20115 1535 1539 631 Charter Communications
19262 1498 4949 298 Verizon Global Networks
7018 1354 6910 886 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
11492 1279 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 519 1780 321 UPC Distribution Services
34984 512 106 182 BILISIM TELEKOM
3292 459 1998 392 TDC Tele Danmark
20940 447 131 342 Akamai Technologies European
8866 442 134 26 Bulgarian Telecommunication C
29049 442 32 44 AzerSat LLC.
12479 429 577 6 Uni2 Autonomous System
3320 420 7608 367 Deutsche Telekom AG
8551 404 354 44 Bezeq International
702 395 1802 309 UUNET - Commercial IP service

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 1477 272 152 TVCABLE BOGOTA
8151 1369 2702 360 UniNet S.A. de C.V.
28573 1312 990 92 NET Servicos de Comunicao S.A
7303 929 470 150 Telecom Argentina Stet-France
6503 732 354 73 AVANTEL, S.A.
14420 667 54 91 CORPORACION NACIONAL DE TELEC
22047 555 310 15 VTR PUNTO NET S.A.
3816 521 227 100 Empresa Nacional de Telecomun
13489 499 242 115 Orbitel S.A. E.S.P.
11172 493 84 83 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 889 445 11 TEDATA
24863 782 147 37 LINKdotNET AS number
15475 415 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 213 12 12 Starcomms Nigeria Limited
24835 206 78 10 RAYA Telecom - Egypt
29571 162 17 11 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 3647 3822 255 bellsouth.net, inc.
4766 2452 9493 916 Korea Telecom (KIX)
23456 2406 683 1317 32-bit ASN transition
4323 1978 1081 396 Time Warner Telecom
17974 1827 516 32 PT TELEKOMUNIKASI INDONESIA
18566 1822 357 232 Covad Communications
1785 1776 681 124 PaeTec Communications, Inc.
6478 1679 314 51 AT&T Worldnet Services
7545 1548 301 86 TPG Internet Pty Ltd
20115 1535 1539 631 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 1827 1795 PT TELEKOMUNIKASI INDONESIA
1785 1776 1652 PaeTec Communications, Inc.
6478 1679 1628 AT&T Worldnet Services
18566 1822 1590 Covad Communications
4323 1978 1582 Time Warner Telecom
4766 2452 1536 Korea Telecom (KIX)
7545 1548 1462 TPG Internet Pty Ltd
10620 1477 1325 TVCABLE BOGOTA
4755 1461 1294 TATA Communications formerly
11492 1279 1264 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
17300 UNALLOCATED 12.45.103.0/24 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 /8:20 /9:12 /10:28 /11:78 /12:223
/13:459 /14:791 /15:1390 /16:11723 /17:5774 /18:9711
/19:19325 /20:25583 /21:25823 /22:34128 /23:32886 /24:185566
/25:1100 /26:1273 /27:710 /28:159 /29:8 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2247 3647 bellsouth.net, inc.
18566 1784 1822 Covad Communications
6478 1633 1679 AT&T Worldnet Services
10620 1367 1477 TVCABLE BOGOTA
11492 1225 1279 Cable One
23456 1188 2406 32-bit ASN transition
7011 1062 1162 Citizens Utilities
1785 1050 1776 PaeTec Communications, Inc.
4323 888 1978 Time Warner Telecom
22773 846 1329 Cox Communications, Inc.

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

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

1:267 2:45 4:14 5:1 6:3 8:353
12:1984 13:1 14:455 15:15 16:3 17:8
20:10 23:7 24:1639 27:743 31:334 32:60
33:4 34:2 37:1 38:731 40:101 41:2502
42:5 44:3 46:903 47:4 49:177 50:401
52:13 55:7 56:2 57:30 58:850 59:480
60:387 61:1255 62:975 63:1924 64:3923 65:2295
66:4138 67:1875 68:1092 69:2988 70:705 71:352
72:1884 73:1 74:2345 75:309 76:342 77:870
78:689 79:463 80:1097 81:817 82:494 83:449
84:624 85:1071 86:598 87:746 88:325 89:1561
90:202 91:3734 92:512 93:1054 94:1251 95:804
96:484 97:246 98:842 99:35 101:59 103:12
106:1 107:6 108:85 109:944 110:586 111:716
112:319 113:397 114:532 115:664 116:953 117:683
118:820 119:1131 120:309 121:678 122:1621 123:1080
124:1257 125:1224 128:259 129:167 130:165 131:566
132:109 133:19 134:218 135:49 136:214 137:143
138:304 139:113 140:480 141:240 142:401 143:398
144:487 145:53 146:440 147:207 148:589 149:243
150:171 151:187 152:310 153:178 154:3 155:395
156:194 157:352 158:130 159:387 160:319 161:207
162:279 163:163 164:497 165:352 166:512 167:431
168:725 169:152 170:793 171:77 172:1 173:1561
174:545 175:368 177:113 178:905 180:843 181:15
182:439 183:205 184:262 185:1 186:1168 187:750
188:831 189:909 190:4803 192:5791 193:4849 194:3477
195:2970 196:1208 197:17 198:3563 199:3868 200:5522
201:1494 202:8350 203:8452 204:4106 205:2321 206:2721
207:2911 208:3966 209:3423 210:2727 211:1386 212:1967
213:1733 214:729 215:69 216:4818 217:1630 218:564
219:370 220:1202 221:484 222:342 223:146

End of report
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Friday, May 13, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 14 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: 361114
Prefixes after maximum aggregation: 162915
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 176038
Total ASes present in the Internet Routing Table: 37563
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31422
Origin ASes announcing only one prefix: 15034
Transit ASes present in the Internet Routing Table: 5068
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3181
Unregistered ASNs in the Routing Table: 350
Number of 32-bit ASNs allocated by the RIRs: 1348
Number of 32-bit ASNs visible in the Routing Table: 1073
Prefixes from 32-bit ASNs in the Routing Table: 2431
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 159
Number of addresses announced to Internet: 2426274247
Equivalent to 144 /8s, 158 /16s and 1 /24s
Percentage of available address space announced: 65.5
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 149618

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

Prefixes being announced by APNIC Region ASes: 87449
Total APNIC prefixes after maximum aggregation: 28856
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 83906
Unique aggregates announced from the APNIC address blocks: 36603
APNIC Region origin ASes present in the Internet Routing Table: 4424
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 695
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 614264769
Equivalent to 36 /8s, 156 /16s and 239 /24s
Percentage of available APNIC address space announced: 77.9

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

Prefixes being announced by ARIN Region ASes: 142970
Total ARIN prefixes after maximum aggregation: 73484
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114952
Unique aggregates announced from the ARIN address blocks: 45424
ARIN Region origin ASes present in the Internet Routing Table: 14378
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5470
ARIN Region transit ASes present in the Internet Routing Table: 1458
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: 800090648
Equivalent to 47 /8s, 176 /16s and 106 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 87320
Total RIPE prefixes after maximum aggregation: 48450
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 80018
Unique aggregates announced from the RIPE address blocks: 51139
RIPE Region origin ASes present in the Internet Routing Table: 15612
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 7751
RIPE Region transit ASes present in the Internet Routing Table: 2482
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 797
Number of RIPE addresses announced to Internet: 469181260
Equivalent to 27 /8s, 247 /16s and 35 /24s
Percentage of available RIPE address space announced: 75.6

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

Prefixes being announced by LACNIC Region ASes: 32840
Total LACNIC prefixes after maximum aggregation: 7520
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31859
Unique aggregates announced from the LACNIC address blocks: 16700
LACNIC Region origin ASes present in the Internet Routing Table: 1449
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: 263
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 213
Number of LACNIC addresses announced to Internet: 83410696
Equivalent to 4 /8s, 248 /16s and 191 /24s
Percentage of available LACNIC address space announced: 55.2

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: 7801
Total AfriNIC prefixes after maximum aggregation: 1870
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6144
Unique aggregates announced from the AfriNIC address blocks: 1910
AfriNIC Region origin ASes present in the Internet Routing Table: 447
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23092992
Equivalent to 1 /8s, 96 /16s and 95 /24s
Percentage of available AfriNIC address space announced: 34.4

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1892 9501 613 Korea Telecom (KIX)
17974 1833 508 33 PT TELEKOMUNIKASI INDONESIA
7545 1548 301 86 TPG Internet Pty Ltd
4755 1458 374 164 Videsh Sanchar Nigam Ltd. Aut
24560 1147 336 184 Bharti Airtel Ltd.
7552 1105 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1039 874 51 BSNL National Internet Backbo
4808 958 2023 278 CNCGROUP IP network: China169
17488 950 165 103 Hathway IP Over Cable Interne

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 3646 3822 256 bellsouth.net, inc.
4323 1975 1097 396 Time Warner Telecom
18566 1822 357 232 Covad Communications
1785 1777 681 125 AppliedTheory Corporation
6478 1678 314 50 AT&T Worldnet Services
20115 1587 1543 631 Charter Communications
19262 1499 4949 299 Verizon Global Networks
7018 1360 6927 892 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
11492 1279 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 1026 798 176 KPNQwest Backbone AS
9116 540 326 30 Goldenlines main autonomous s
6830 519 1780 320 UPC Distribution Services
3292 517 1998 392 TDC Tele Danmark
34984 512 106 182 Tellcom Iletisim Hizmetleri
20940 453 132 346 Akamai Technologies European
8866 443 134 26 Bulgarian Telecommunication C
29049 442 32 44 AzerSat LLC.
12479 428 577 6 Uni2 Autonomous System
3320 419 7608 366 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 1477 272 152 TVCABLE BOGOTA
8151 1371 2683 361 Uninet S.A. de C.V.
28573 1313 990 86 Types of queries are: POCs, o
7303 931 470 152 Telecom Argentina Stet-France
6503 734 354 74 AVANTEL, S.A.
14420 667 54 91 Types of queries are: POCs, o
22047 555 310 15 Types of queries are: POCs, o
3816 522 227 99 COLOMBIA TELECOMUNICACIONES S
13489 501 242 115 Orbitel S.A. E.S.P.
27947 496 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 888 445 11 TEDATA
24863 783 147 38 LINKdotNET AS number
15475 416 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 206 78 10 RAYA Telecom - Egypt
29571 162 17 11 Ci Telecom Autonomous system
16637 152 441 86 Johnnic e-Ventures

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3646 3822 256 bellsouth.net, inc.
23456 2431 620 1319 >>UNKNOWN<<
4323 1975 1097 396 Time Warner Telecom
4766 1892 9501 613 Korea Telecom (KIX)
17974 1833 508 33 PT TELEKOMUNIKASI INDONESIA
18566 1822 357 232 Covad Communications
1785 1777 681 125 AppliedTheory Corporation
6478 1678 314 50 AT&T Worldnet Services
20115 1587 1543 631 Charter Communications
7545 1548 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 1833 1800 PT TELEKOMUNIKASI INDONESIA
1785 1777 1652 AppliedTheory Corporation
6478 1678 1628 AT&T Worldnet Services
18566 1822 1590 Covad Communications
4323 1975 1579 Time Warner Telecom
7545 1548 1462 TPG Internet Pty Ltd
10620 1477 1325 TVCABLE BOGOTA
4755 1458 1294 Videsh Sanchar Nigam Ltd. Aut
4766 1892 1279 Korea Telecom (KIX)
11492 1279 1264 Cable One

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

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
31.133.224.0/19 47211 JSC Kolpinskie Internet-Seti
31.134.128.0/18 42668 Nevalink LTD
31.220.160.0/19 29072 RDTC Autonomous System ISP at
31.222.96.0/22 29119 ServiHosting Autonomous Syste

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 /8:21 /9:12 /10:28 /11:79 /12:223
/13:459 /14:798 /15:1424 /16:11871 /17:6026 /18:10011
/19:19845 /20:26267 /21:26204 /22:34475 /23:33403 /24:187314
/25:377 /26:343 /27:170 /28:284 /29:179 /30:607
/31:65 /32:629

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

ASN No of nets Total ann. Description
6389 2245 3646 bellsouth.net, inc.
18566 1784 1822 Covad Communications
6478 1632 1678 AT&T Worldnet Services
10620 1367 1477 TVCABLE BOGOTA
11492 1225 1279 Cable One
23456 1207 2431 >>UNKNOWN<<
7011 1062 1162 Citizens Utilities
1785 1050 1777 AppliedTheory Corporation
286 886 1026 KPNQwest Backbone AS
4323 885 1975 Time Warner Telecom

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

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

1:267 2:62 4:18 5:1 6:3 8:353
12:1989 13:1 14:456 15:15 16:3 17:8
20:10 23:7 24:1650 27:747 31:334 32:126
33:4 34:2 37:1 38:733 40:101 41:2501
42:5 44:3 46:907 47:4 49:177 50:401
52:13 55:5 56:2 57:40 58:851 59:487
60:387 61:1257 62:995 63:1938 64:3952 65:2300
66:4165 67:1893 68:1270 69:3094 70:750 71:357
72:1917 73:3 74:2403 75:320 76:350 77:904
78:692 79:482 80:1086 81:825 82:509 83:460
84:645 85:1083 86:615 87:773 88:332 89:1606
90:202 91:3738 92:511 93:1068 94:1282 95:811
96:484 97:246 98:836 99:35 101:59 103:12
106:1 107:6 108:85 109:951 110:586 111:715
112:319 113:399 114:535 115:667 116:969 117:683
118:820 119:1134 120:309 121:681 122:1621 123:1079
124:1257 125:1221 128:260 129:170 130:165 131:568
132:109 133:19 134:219 135:49 136:214 137:143
138:305 139:118 140:480 141:240 142:404 143:402
144:487 145:53 146:441 147:218 148:591 149:243
150:171 151:187 152:305 153:178 154:3 155:393
156:194 157:353 158:131 159:387 160:318 161:207
162:279 163:163 164:499 165:370 166:514 167:432
168:725 169:154 170:794 171:77 172:1 173:1576
174:546 175:369 177:113 178:913 180:839 181:15
182:439 183:204 184:344 185:1 186:1169 187:745
188:834 189:908 190:4804 192:5816 193:4862 194:3526
195:3107 196:1220 197:17 198:3604 199:3900 200:5534
201:1506 202:8365 203:8482 204:4116 205:2328 206:2744
207:2915 208:3980 209:3431 210:2737 211:1422 212:2021
213:1768 214:725 215:69 216:4836 217:1640 218:570
219:371 220:1206 221:485 222:342 223:145

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 14 May, 2011

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

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

BGP routing table entries examined: 356656
Prefixes after maximum aggregation: 161598
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 176105
Total ASes present in the Internet Routing Table: 37552
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 31389
Origin ASes announcing only one prefix: 15082
Transit ASes present in the Internet Routing Table: 5092
Transit-only ASes present in the Internet Routing Table: 136
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: 626
Unregistered ASNs in the Routing Table: 320
Number of 32-bit ASNs allocated by the RIRs: 1348
Number of 32-bit ASNs visible in the Routing Table: 1071
Prefixes from 32-bit ASNs in the Routing Table: 2417
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 156
Number of addresses announced to Internet: 2425507776
Equivalent to 144 /8s, 146 /16s and 79 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 148116

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

Prefixes being announced by APNIC Region ASes: 89380
Total APNIC prefixes after maximum aggregation: 29933
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 85747
Unique aggregates announced from the APNIC address blocks: 36599
APNIC Region origin ASes present in the Internet Routing Table: 4441
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1232
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 614205216
Equivalent to 36 /8s, 156 /16s and 7 /24s
Percentage of available APNIC address space announced: 77.9

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

Prefixes being announced by ARIN Region ASes: 140013
Total ARIN prefixes after maximum aggregation: 71448
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 112260
Unique aggregates announced from the ARIN address blocks: 45485
ARIN Region origin ASes present in the Internet Routing Table: 14368
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5485
ARIN Region transit ASes present in the Internet Routing Table: 1497
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: 800054528
Equivalent to 47 /8s, 175 /16s and 221 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 84162
Total RIPE prefixes after maximum aggregation: 48126
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 77641
Unique aggregates announced from the RIPE address blocks: 51249
RIPE Region origin ASes present in the Internet Routing Table: 15589
RIPE Prefixes per ASN: 4.98
RIPE Region origin ASes announcing only one prefix: 7801
RIPE Region transit ASes present in the Internet Routing Table: 2460
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 790
Number of RIPE addresses announced to Internet: 468684800
Equivalent to 27 /8s, 239 /16s and 144 /24s
Percentage of available RIPE address space announced: 75.5

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

Prefixes being announced by LACNIC Region ASes: 32698
Total LACNIC prefixes after maximum aggregation: 7496
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31756
Unique aggregates announced from the LACNIC address blocks: 16683
LACNIC Region origin ASes present in the Internet Routing Table: 1449
LACNIC Prefixes per ASN: 21.92
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 268
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 217
Number of LACNIC addresses announced to Internet: 83360256
Equivalent to 4 /8s, 247 /16s and 250 /24s
Percentage of available LACNIC address space announced: 55.2

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: 7770
Total AfriNIC prefixes after maximum aggregation: 1867
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6122
Unique aggregates announced from the AfriNIC address blocks: 1939
AfriNIC Region origin ASes present in the Internet Routing Table: 447
AfriNIC Prefixes per ASN: 13.70
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 97
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: 23095040
Equivalent to 1 /8s, 96 /16s and 103 /24s
Percentage of available AfriNIC address space announced: 34.4

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2452 9493 916 Korea Telecom (KIX)
17974 1834 516 32 PT TELEKOMUNIKASI INDONESIA
7545 1549 301 87 TPG Internet Pty Ltd
4755 1461 634 167 TATA Communications formerly
24560 1151 336 184 Bharti Airtel Ltd., Telemedia
7552 1105 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
4808 1063 2130 297 CNCGROUP IP network: China169
9829 1039 874 51 BSNL National Internet Backbo
17488 935 165 103 Hathway IP Over Cable Interne

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 3647 3822 255 bellsouth.net, inc.
4323 1979 1081 396 Time Warner Telecom
18566 1822 357 232 Covad Communications
1785 1775 681 124 PaeTec Communications, Inc.
6478 1678 314 50 AT&T Worldnet Services
20115 1535 1539 631 Charter Communications
19262 1499 4949 299 Verizon Global Networks
7018 1357 6911 886 AT&T WorldNet Services
22773 1329 2897 87 Cox Communications, Inc.
11492 1279 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 519 1780 321 UPC Distribution Services
34984 512 106 182 BILISIM TELEKOM
3292 459 1998 392 TDC Tele Danmark
20940 447 131 342 Akamai Technologies European
8866 442 134 26 Bulgarian Telecommunication C
29049 442 32 44 AzerSat LLC.
12479 430 577 6 Uni2 Autonomous System
3320 420 7608 367 Deutsche Telekom AG
8551 406 355 45 Bezeq International
702 397 1802 310 UUNET - Commercial IP service

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 1476 272 154 TVCABLE BOGOTA
8151 1370 2702 362 UniNet S.A. de C.V.
28573 1315 990 86 NET Servicos de Comunicao S.A
7303 931 470 152 Telecom Argentina Stet-France
6503 732 354 73 AVANTEL, S.A.
14420 667 54 91 CORPORACION NACIONAL DE TELEC
22047 555 310 15 VTR PUNTO NET S.A.
3816 521 227 100 Empresa Nacional de Telecomun
13489 499 241 121 Orbitel S.A. E.S.P.
11172 493 84 83 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 888 445 11 TEDATA
24863 782 147 37 LINKdotNET AS number
15475 415 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 206 78 10 RAYA Telecom - Egypt
33776 200 12 11 Starcomms Nigeria Limited
29571 162 17 11 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 3647 3822 255 bellsouth.net, inc.
4766 2452 9493 916 Korea Telecom (KIX)
23456 2417 685 1317 32-bit ASN transition
4323 1979 1081 396 Time Warner Telecom
17974 1834 516 32 PT TELEKOMUNIKASI INDONESIA
18566 1822 357 232 Covad Communications
1785 1775 681 124 PaeTec Communications, Inc.
6478 1678 314 50 AT&T Worldnet Services
7545 1549 301 87 TPG Internet Pty Ltd
20115 1535 1539 631 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 1834 1802 PT TELEKOMUNIKASI INDONESIA
1785 1775 1651 PaeTec Communications, Inc.
6478 1678 1628 AT&T Worldnet Services
18566 1822 1590 Covad Communications
4323 1979 1583 Time Warner Telecom
4766 2452 1536 Korea Telecom (KIX)
7545 1549 1462 TPG Internet Pty Ltd
10620 1476 1322 TVCABLE BOGOTA
4755 1461 1294 TATA Communications formerly
11492 1279 1264 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
--------------------------------

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
31.134.128.0/18 42668 RIPE Network Coordination Cen
31.220.160.0/19 29072 RDTC Autonomous System ISP at
31.222.96.0/22 29119 ServiHosting Autonomous Syste
31.222.100.0/22 29119 ServiHosting Autonomous Syste

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 /11:78 /12:223
/13:459 /14:790 /15:1390 /16:11723 /17:5766 /18:9707
/19:19307 /20:25552 /21:25796 /22:34071 /23:32878 /24:185607
/25:1092 /26:1271 /27:709 /28:161 /29:8 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2247 3647 bellsouth.net, inc.
18566 1784 1822 Covad Communications
6478 1632 1678 AT&T Worldnet Services
10620 1366 1476 TVCABLE BOGOTA
11492 1225 1279 Cable One
23456 1188 2417 32-bit ASN transition
7011 1062 1162 Citizens Utilities
1785 1050 1775 PaeTec Communications, Inc.
4323 888 1979 Time Warner Telecom
22773 846 1329 Cox Communications, Inc.

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

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

1:267 2:44 4:14 5:1 6:3 8:352
12:1985 13:1 14:456 15:15 16:3 17:8
20:10 23:7 24:1639 27:743 31:328 32:60
33:4 34:2 37:1 38:731 40:101 41:2501
42:5 44:3 46:903 47:4 49:177 50:401
52:13 55:6 56:2 57:30 58:848 59:485
60:387 61:1254 62:974 63:1925 64:3928 65:2299
66:4140 67:1866 68:1093 69:2986 70:706 71:350
72:1884 73:1 74:2345 75:306 76:342 77:865
78:689 79:463 80:1096 81:817 82:493 83:449
84:625 85:1071 86:598 87:746 88:325 89:1566
90:202 91:3732 92:512 93:1054 94:1251 95:803
96:483 97:246 98:828 99:35 101:59 103:12
106:1 107:6 108:85 109:944 110:585 111:711
112:319 113:399 114:532 115:666 116:954 117:683
118:818 119:1135 120:309 121:678 122:1621 123:1079
124:1257 125:1223 128:259 129:166 130:165 131:568
132:110 133:19 134:218 135:49 136:214 137:143
138:304 139:106 140:480 141:240 142:401 143:402
144:487 145:53 146:440 147:210 148:591 149:243
150:171 151:187 152:310 153:179 154:3 155:395
156:194 157:352 158:131 159:387 160:315 161:207
162:279 163:163 164:499 165:352 166:514 167:431
168:725 169:153 170:794 171:77 172:1 173:1557
174:543 175:370 177:120 178:908 180:840 181:16
182:439 183:205 184:262 185:1 186:1169 187:749
188:829 189:907 190:4793 192:5783 193:4843 194:3477
195:2973 196:1209 197:17 198:3570 199:3893 200:5535
201:1494 202:8359 203:8467 204:4111 205:2328 206:2725
207:2913 208:3966 209:3423 210:2731 211:1386 212:1973
213:1717 214:730 215:69 216:4818 217:1630 218:565
219:370 220:1203 221:483 222:342 223:145

End of report
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