266475 SEM FRONTEIRAS TELECOMUNICACOES LTDA, BR
Adjacency: 9 Upstream: 6 Downstream: 3
Upstream Adjacent AS list
AS52468 UFINET PANAMA S.A., PA
AS1031 PEER1-1031, US
AS6939 HURRICANE, US
AS264275 ROLIM NET TECNOLOGIA LTDA, BR
AS4230 CLARO S.A., BR
AS271253 LINK BRASIL TELECOMUNICACOES LTDA, BR
Downstream Adjacent AS list
AS267432 D. S. da Costa, BR
AS271555 SDMNET INFORMATICA LTDA - ME, BR
AS267997 DS TELECOM, BR
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 8396 AS266475 ORG+TRN Originate: 14848 /18.14 Transit: 7168 /19.19 SEM FRONTEIRAS TELECOMUNICACOES LTDA, BR
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 4537 AS266475 SEM FRONTEIRAS TELECOMUNICACOES LTDA, BR 26 16 4 14 12 46.15% Prefix AS Path Aggregation Suggestion 38.9.112.0/22 6939 12956 10429 264275 266475 38.9.112.0/24 6939 1031 266475 38.9.113.0/24 6939 4230 266475 38.9.114.0/24 6939 1031 266475 38.9.115.0/24 6939 4230 266475 38.56.72.0/22 6939 12956 10429 264275 266475 38.56.72.0/23 6939 1031 266475 + Announce - aggregate of 38.56.72.0/24 (6939 1031 266475) and 38.56.73.0/24 (6939 1031 266475) 38.56.72.0/24 6939 1031 266475 - Withdrawn - aggregated with 38.56.73.0/24 (6939 1031 266475) 38.56.73.0/24 6939 1031 266475 - Withdrawn - aggregated with 38.56.72.0/24 (6939 1031 266475) 38.56.74.0/23 6939 4230 266475 + Announce - aggregate of 38.56.74.0/24 (6939 4230 266475) and 38.56.75.0/24 (6939 4230 266475) 38.56.74.0/24 6939 4230 266475 - Withdrawn - aggregated with 38.56.75.0/24 (6939 4230 266475) 38.56.75.0/24 6939 4230 266475 - Withdrawn - aggregated with 38.56.74.0/24 (6939 4230 266475) 38.191.48.0/20 6939 4230 266475 38.191.48.0/20 6939 266475 + Announce - aggregate of 38.191.48.0/21 (6939 266475) and 38.191.56.0/21 (6939 266475) 38.191.48.0/23 6939 266475 - Withdrawn - aggregated with 38.191.50.0/23 (6939 266475) 38.191.50.0/23 6939 266475 - Withdrawn - aggregated with 38.191.48.0/23 (6939 266475) 38.191.52.0/23 6939 266475 - Withdrawn - aggregated with 38.191.54.0/23 (6939 266475) 38.191.54.0/23 6939 266475 - Withdrawn - aggregated with 38.191.52.0/23 (6939 266475) 38.191.56.0/23 6939 266475 - Withdrawn - aggregated with 38.191.58.0/23 (6939 266475) 38.191.58.0/23 6939 266475 - Withdrawn - aggregated with 38.191.56.0/23 (6939 266475) 38.191.60.0/23 6939 266475 - Withdrawn - aggregated with 38.191.62.0/23 (6939 266475) 38.191.60.0/24 6939 4230 266475 38.191.61.0/24 6939 1031 266475 38.191.62.0/23 6939 266475 - Withdrawn - aggregated with 38.191.60.0/23 (6939 266475) 170.83.172.0/22 6939 266475 170.83.172.0/22 6939 4230 266475 + Announce - aggregate of 170.83.172.0/23 (6939 4230 266475) and 170.83.174.0/23 (6939 4230 266475) 170.83.172.0/24 6939 4230 266475 - Withdrawn - aggregated with 170.83.173.0/24 (6939 4230 266475) 170.83.173.0/24 6939 4230 266475 - Withdrawn - aggregated with 170.83.172.0/24 (6939 4230 266475) 170.83.174.0/24 6939 4230 266475 - Withdrawn - aggregated with 170.83.175.0/24 (6939 4230 266475) 170.83.175.0/24 6939 4230 266475 - Withdrawn - aggregated with 170.83.174.0/24 (6939 4230 266475)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS266475 14 More Specifics 15 Total Advertisements SEM FRONTEIRAS TELECOMUNICACOES LTDA, BR
38.9.112.0/22 38.0.0.0/8
38.9.112.0/24 38.0.0.0/8
38.9.113.0/24 38.0.0.0/8
38.9.114.0/24 38.0.0.0/8
38.9.115.0/24 38.0.0.0/8
38.56.72.0/22 38.0.0.0/8
38.56.72.0/24 38.0.0.0/8
38.56.73.0/24 38.0.0.0/8
38.56.74.0/24 38.0.0.0/8
38.56.75.0/24 38.0.0.0/8
170.83.172.0/24 170.83.172.0/22
170.83.173.0/24 170.83.172.0/22
170.83.174.0/24 170.83.172.0/22
170.83.175.0/24 170.83.172.0/22
whois: 402590
IANA has recorded AS266475 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS266475\n % IP Client: 2401:2000:6660::13
% Copyright (c) Nic.br - Use of this data is governed by the Use and
% Privacy Policy at https://registro.br/upp . Distribution,
% commercialization, reproduction, and use for advertising or similar
% purposes are expressly prohibited.
% 2026-06-04T07:54:03-03:00 - 2401:2000:6660::13
aut-num: AS266475
owner: SEM FRONTEIRAS TELECOMUNICACOES LTDA
ownerid: 11.972.556/0001-66
responsible: Makleysh de Oliveira Bezerra
country: BR
owner-c: MAOBE101
routing-c: KEBSO29
abuse-c: MAOLI1589
created: 20170110
changed: 20251119
inetnum: 170.83.172.0/22
inetnum: 2804:3868::/32
as-in: from AS4230 100 accept ANY
as-in: from AS262253 100 accept ANY
as-in: from AS271253 100 accept ANY
as-in: from AS264275 100 accept ANY
as-out: to AS4230 announce AS266475
as-out: to AS262253 announce AS266475
as-out: to AS271253 announce AS266475
as-out: to AS264275 announce AS266475
nic-hdl-br: MAOBE101
person: Makleysh de Oliveira Bezerra
e-mail: makleysh@semfronteirasnet.com.br
country: BR
created: 20230704
changed: 20250207
nic-hdl-br: KEBSO29
person: K�mio Benevides de Souza
e-mail: kemio@semfronteirasnet.com.br
country: BR
created: 20250211
changed: 20250211
nic-hdl-br: MAOLI1589
person: Makleysh Oliveira
e-mail: makleysh@semfronteirasnet.com.br
country: BR
created: 20160128
changed: 20220706
% 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.