asn.dev

Autonomous system

AS52847 Master Telecom

Unclassified APNIC

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Master Telecom

Brazil · AI-generated

telecom brazil small

AS52847 is held by Master Telecom.

What it's used for

  • The space carries customer access traffic, evidenced by the reverse DNS record clientes177-66-150-254.masterbrasil.com.br which explicitly identifies the host as a client.
  • The AS announces 1024 IPv4 addresses and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small-scale access or local service provider rather than a transit carrier.
  • Traffic from this network consists of end-user connections for a telecommunications company operating in Brazil.

Notable

  • The registrant Master Telecom matches the AS handle and the netname 193725 for the announced prefix 177.66.148.0/22.
  • The address inventory is compact, consisting of a single /22 block and a single /32 IPv6 prefix, typical of a regional or local operator.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS266574GMT Multimidia Ltda472

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 1.02K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
52847
Registry name
ASN52847
Registrant
Master Telecom
Abuse contact
islanso@yahoo.com.br
Registered
2012-11-08
Last changed
2013-03-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
2 authorising AS52847
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
16 naming AS52847

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 443 networks and 1,779 prefixes, as published 2026-10-24. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check