Autonomous System details
AS21574
Century Telecom LTDA — century.net.br
Summary
| Country |
 Brazil
|
| Organization | Century Telecom LTDA |
| Domain | century.net.br |
| Number of IPv4 | 13,568 |
| Number of IPv6 | 7.9228× 1028 |
| AS Type | ISP |
| Registry | LACNIC |
| Allocated | June 07, 2001 (about 23 years ago) |
| Updated | June 10, 2020 (about 4 years ago) |
IP Ranges
AS21574 announces 5 IPv4 ranges and 1 IPv6 range.
That's a total of 13,568 IPv4 addresses and 7.9228× 1028 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 168.227.200.0/22 |
Century Telecom LTDA
|
1,024 | LACNIC | ALLOCATED |
| 186.249.224.0/20 |
Century Telecom LTDA
|
4,096 | LACNIC | ALLOCATED |
| 187.1.176.0/20 |
Century Telecom LTDA
|
4,096 | LACNIC | ALLOCATED |
| 187.1.178.0/24 |
Century Telecom LTDA
|
256 | LACNIC | ALLOCATED |
| 200.169.0.0/20 |
Century Telecom LTDA
|
4,096 | LACNIC | ALLOCATED |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2804:23ec::/32 |
Century Telecom LTDA
|
7.9228× 1028 | LACNIC | ALLOCATED |
Peers
There are 121 peers for AS21574:
AS553
AS559
AS917
AS1267
AS1764
AS1828
AS1836
AS3214
AS3303
AS4455
AS5405
AS5713
AS6233
AS6424
AS6939
AS7713
AS8283
AS8298
AS8426
AS8455
AS8758
AS12552
AS12779
AS12859
AS13237
AS14537
AS14630
AS15547
AS16347
AS17639
AS18106
AS20485
AS20562
AS20764
AS20932
AS21412
AS22652
AS23106
AS23473
AS24482
AS24889
AS24961
AS25091
AS25160
AS25220
AS28634
AS28716
AS28917
AS29075
AS29140
AS31510
AS33891
AS34019
AS34177
AS34224
AS34288
AS34549
AS34927
AS35280
AS35360
AS35598
AS35710
AS37100
AS37468
AS37721
AS38880
AS39120
AS39351
AS41047
AS41095
AS41327
AS42473
AS42541
AS45352
AS47147
AS47692
AS47957
AS48362
AS48919
AS49544
AS49605
AS50629
AS50877
AS51184
AS51185
AS52320
AS52863
AS52873
AS56987
AS57406
AS57695
AS57777
AS58057
AS58299
AS58511
AS59318
AS59605
AS60068
AS60171
AS60503
AS61568
AS63927
AS64289
AS64475
AS132337
AS137409
AS198385
AS199524
AS199938
AS200780
AS205112
AS206356
AS210937
AS212483
AS213151
AS213241
AS263152
AS263237
AS264479
AS267613
AS271253
Downstreams
There are 97 downstreams for AS21574:
AS3573
AS13335
AS20044
AS28133
AS28175
AS28188
AS28219
AS28572
AS28590
AS28660
AS52617
AS52631
AS52712
AS52875
AS52883
AS52907
AS52928
AS53052
AS53077
AS53139
AS53196
AS61613
AS61707
AS61712
AS262268
AS262306
AS262387
AS262428
AS262566
AS262617
AS262624
AS262674
AS262767
AS262948
AS263261
AS263277
AS263356
AS263475
AS263994
AS264014
AS264374
AS264455
AS264540
AS265051
AS265437
AS265460
AS265485
AS265497
AS266062
AS266149
AS266260
AS266317
AS266360
AS266556
AS266942
AS267008
AS267070
AS267357
AS267497
AS267536
AS268128
AS268188
AS268229
AS268314
AS268355
AS268433
AS268480
AS268732
AS268843
AS268882
AS269154
AS269199
AS269248
AS269308
AS270385
AS270564
AS270589
AS270663
AS270837
AS270897
AS271034
AS271037
AS271062
AS271072
AS271251
AS271252
AS271338
AS271398
AS271488
AS272162
AS272201
AS272241
AS272710
AS272753
AS273348
AS273350
AS273714