Autonomous system
AS28181 MASTER TELECOM LTDA ME
Unclassified LACNIC Cable/DSL/ISP
Summary
Master Telecom
isp residential brazil cable
AS28181 is operated by Master Telecom LTDA ME.
What it's used for
- The address space carries residential and small business traffic, consistent with the operator's classification as a Cable/DSL/ISP.
- The AS announces 2048 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with 4 observed neighbours, indicating a regional access network rather than a transit provider.
Notable
- All four IPv4 prefixes share the netname
201806and are registered toMASTER TELECOM LTDA ME, matching the AS holder. - The address inventory consists of four contiguous /23 blocks within the 179.97.16.0/22 range, suggesting a single, cohesive allocation for the operator's regional footprint.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 2.05K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 5 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
28181- Registry name
- ASN28181
- Registrant
- MASTER TELECOM LTDA ME
- Abuse contact
- JOSE URIAS DE SOUZA NETO
- Registered
- 2013-04-26
- Last changed
- 2014-10-09
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- MASTER TELECOM LTDA ME
- Also known as
- MASTER TELECOM
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Balanced
- Peering policy
- Selective
- IRR as-set
AS28181:AS-CUSTOMERS- Website
- https://redemastertelecom.com.br/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS28181
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 10 naming AS28181
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: 442 networks and 1,779 prefixes, as published 2026-10-22. 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