Autonomous system
AS52871 TASCOM TELECOMUNICACOES LTDA
Residential APNIC Cable/DSL/ISP
Summary
Tascom Telecomunicações
isp residential brazil fiber
AS52871 is operated by Tascom Telecomunicações Ltda.
What it's used for
- The address space carries residential fiber and DSL subscriber traffic, evidenced by reverse DNS entries such as
177-136-37-254.mgmnetfibra.com.brand177-136-2-254.tascom.com.br. - The AS announces 14,336 IPv4 addresses across 27 prefixes and 75 IPv6 prefixes, while maintaining 77 observed routing neighbours.
- Traffic from this network consists of end-user internet access for residential customers in Brazil, utilizing fiber and cable infrastructure.
Notable
- All sampled registrants match the AS holder, consistently listing
TASCOM TELECOMUNICAÇÕES LTDAfor prefixes including177.136.32.0/21and201.157.200.0/21. - The address inventory is fragmented into numerous /23 and /24 blocks within the
177.136.0.0/16and201.157.0.0/16ranges, typical of a regional ISP managing subscriber pools.
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
Recorded at 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.209.187 |
| IX.br (PTT.br) Salvador | Salvador, Brazil | 200.219.145.46 |
| IX.br (PTT.br) Feira de Santana | Feira De Santana, Brazil | 200.219.131.6 |
Transit providers
6 upstream, 49 downstream and 92 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 25 prefixes · 14.59K addresses IPv6 79 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 104 |
Registry
Allocation record
- Registry
- APNIC
- Handle
52871- Registry name
- ASN52871
- Registrant
- TASCOM TELECOMUNICAÇÕES LTDA
- Abuse contact
- costaandre@me.com
- Registered
- 2012-01-31
- Last changed
- 2017-08-03
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Mowry
- Also known as
- MOWRY TELECOM
- Network type
- Cable/DSL/ISP
- Scope
- South America
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS-TASCOM-52871- Present at
- 3 exchanges
- Facilities
- 1 facilities
- Website
- https://mowry.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
- 100% valid · 135 valid, 0 with no ROA
- ROAs
- 34 authorising AS52871
- ASPA
- 2 declared providers
- IRR
- 100% registered · 135 of 135 announcements
- Route objects
- 92 naming AS52871
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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