ASN Lookup Tool

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% 2026-07-10T09:37:04-03:00 - 136.227.171.147

aut-num:     AS21574
owner:       Century Telecom Ltda
ownerid:     01.492.641/0001-73
responsible: Fernando Antonio Barbosa
country:     BR
owner-c:     DCT38
routing-c:   DCT38
abuse-c:     ACTLT99
created:     20010607
changed:     20200610
inetnum:     200.169.0.0/20
inetnum:     187.1.176.0/20
inetnum:     186.249.224.0/20
inetnum:     2804:23ec::/32
inetnum:     168.227.200.0/22
as-in:       from AS262306 300 accept AS262306
as-in:       from AS264552 300 accept AS264552
as-in:       from AS262805 300 accept AS262805
as-in:       from AS262566 300 accept AS262566
as-in:       from AS52596 300 accept AS52596
as-in:       from AS263632 300 accept AS263632
as-in:       from AS264421 300 accept AS264421
as-in:       from AS264228 300 accept AS264228
as-in:       from AS262525 300 accept AS262525
as-in:       from AS52809 300 accept AS52809
as-in:       from AS61707 300 accept AS61707
as-in:       from AS52883 300 accept AS52883
as-in:       from AS264540 300 accept AS264540
as-in:       from AS262624 300 accept AS262624
as-in:       from AS52947 300 accept AS52947
as-in:       from AS263453 300 accept AS263453
as-in:       from AS262961 300 accept AS262961
as-in:       from AS263666 300 accept AS263666
as-in:       from AS265185 300 accept AS265185
as-in:       from AS52758 300 accept AS52758
as-in:       from AS264325 300 accept AS264325
as-in:       from AS262336 300 accept AS262336
as-in:       from AS262602 300 accept AS262602
as-in:       from AS263432 300 accept AS263432
as-in:       from AS52596 300 accept AS52596
as-out:      to AS3549 announce AS21574
as-out:      to AS16735 announce AS21574
as-out:      to AS262589 announce AS21574
as-out:      to AS28360 announce AS21574

nic-hdl-br:  DCT38
person:      Dominios Corporativos Century Telecom
e-mail:      fapesp@century.net.br
country:     BR
created:     20040624
changed:     20181206

nic-hdl-br:  ACTLT99
person:      Abuse Century Telecom Ltda
e-mail:      abuse@century.net.br
country:     BR
created:     20200610
changed:     20200610

% Security and mail abuse issues should also be addressed to cert.br,
% respectivelly to cert@cert.br and mail-abuse@cert.br
%
% whois.registro.br only accepts exact match queries for domains,
% registrants, contacts, tickets, providers, IPs, and ASNs.

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       21574 - 21575
ASName:         LACNIC-21574
ASHandle:       AS21574
RegDate:        2002-07-27
Updated:        2007-12-17
Comment:        This AS is under LACNIC responsibility for further allocations to
Comment:        users in LACNIC region.
Comment:        Please see http://www.lacnic.net/ for further details, or check the
Comment:        WHOIS server located at http://whois.lacnic.net
Ref:            https://rdap.arin.net/registry/autnum/21574

ResourceLink:  http://lacnic.net/cgi-bin/lacnic/whois
ResourceLink:  whois.lacnic.net


OrgName:        Latin American and Caribbean IP address Regional Registry
OrgId:          LACNIC
Address:        Rambla Republica de Mexico 6125
City:           Montevideo
StateProv:      
PostalCode:     11400
Country:        UY
RegDate:        2002-07-27
Updated:        2018-03-15
Ref:            https://rdap.arin.net/registry/entity/LACNIC

ReferralServer:  whois://whois.lacnic.net
ResourceLink:  http://lacnic.net/cgi-bin/lacnic/whois

OrgAbuseHandle: LWI100-ARIN
OrgAbuseName:   LACNIC Whois Info
OrgAbusePhone:  +598-2604-2222 
OrgAbuseEmail:  abuse@lacnic.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LWI100-ARIN

OrgTechHandle: LACNIC-ARIN
OrgTechName:   LACNIC Whois Info
OrgTechPhone:  +598-2604-2222 
OrgTechEmail:  whois-contact@lacnic.net
OrgTechRef:    https://rdap.arin.net/registry/entity/LACNIC-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#