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 3 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 142 peers for AS21574:
AS553
AS559
AS917
AS945
AS1103
AS1140
AS1239
AS1764
AS1828
AS3214
AS3216
AS3303
AS3333
AS3399
AS4455
AS5398
AS5405
AS5713
AS6057
AS6233
AS6777
AS6939
AS8283
AS8298
AS8309
AS8315
AS8426
AS8447
AS8455
AS8758
AS9902
AS12552
AS12637
AS12779
AS12859
AS12969
AS13237
AS14630
AS14907
AS15435
AS15547
AS15576
AS15605
AS15830
AS17639
AS18106
AS20485
AS20562
AS20764
AS20932
AS21412
AS21700
AS23106
AS24482
AS24889
AS24961
AS25091
AS25160
AS25220
AS28624
AS28634
AS28716
AS28917
AS29075
AS29140
AS31025
AS31510
AS33891
AS34019
AS34177
AS34224
AS34288
AS34927
AS35280
AS35360
AS35598
AS35710
AS37100
AS37721
AS38880
AS39120
AS39122
AS39351
AS41047
AS41051
AS41327
AS41805
AS42473
AS42541
AS45352
AS47147
AS47160
AS47692
AS47787
AS47957
AS48362
AS48858
AS48919
AS49544
AS49605
AS50300
AS50304
AS50629
AS50673
AS50763
AS51088
AS51184
AS51185
AS51873
AS52873
AS53070
AS56655
AS56987
AS57406
AS57695
AS58057
AS58299
AS59605
AS59890
AS60068
AS60503
AS61568
AS62275
AS63927
AS64475
AS137409
AS198385
AS199524
AS199938
AS200780
AS205112
AS206356
AS210937
AS212483
AS213151
AS263152
AS263237
AS264479
AS267613
AS268696
AS271253
AS328832
Downstreams
There are 101 downstreams for AS21574:
AS3573
AS11432
AS13335
AS20044
AS28175
AS28188
AS28219
AS28572
AS28590
AS28610
AS28660
AS52532
AS52617
AS52631
AS52712
AS52875
AS52883
AS52947
AS53005
AS53077
AS53196
AS61707
AS61712
AS262268
AS262306
AS262566
AS262617
AS262624
AS262674
AS262767
AS262811
AS263261
AS263277
AS263356
AS263432
AS263567
AS264014
AS264374
AS264540
AS265051
AS265131
AS265437
AS265460
AS265485
AS265497
AS266062
AS266149
AS266260
AS266317
AS266360
AS266556
AS266636
AS266942
AS267008
AS267070
AS267357
AS267497
AS267536
AS267618
AS267999
AS268128
AS268188
AS268229
AS268355
AS268433
AS268480
AS268732
AS268843
AS268882
AS269154
AS269199
AS269227
AS269248
AS269249
AS269308
AS270385
AS270564
AS270589
AS270663
AS270820
AS270837
AS270897
AS271034
AS271037
AS271062
AS271072
AS271207
AS271251
AS271252
AS271338
AS271398
AS271452
AS271488
AS272241
AS272710
AS272753
AS273348
AS273350
AS273690
AS273714
AS273811