Autonomous system
AS53173 SOBRALNET SERVICOS E TELECOMUNICACOES LTDA - ME
Residential ARIN Cable/DSL/ISP
Summary
Sobral Telecomunicacoes
isp residential regional brazil
The AS handle is SOBRALNET SERVICOS E TELECOMUNICACOES LTDA - ME, held by Sobral Telecomunicacoes Ltda.
What it's used for
- The address space carries residential and business internet access, evidenced by reverse DNS entries like
177-44-178-0.sobralnet.net.brand the netnames430513through430516. - The network announces 3,840 IPv4 addresses across 4 prefixes and 6 IPv6 prefixes, with 35 observed neighbours, indicating a regional access provider rather than a transit hub.
- Traffic from this AS consists of subscriber eyeballs for internet access in the Sobral, Ceará region of Brazil.
Notable
- All registrants for the announced prefixes are listed as Sobral Telecomunicações Ltda, matching the AS holder.
- The address inventory is contiguous within the 177.44.176.0/21 range, subdivided into four distinct prefixes.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.215.155 |
| IX.br (PTT.br) Fortaleza | Fortaleza, Brazil | 45.68.75.242 |
Transit providers
7 upstream, 6 downstream and 26 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 4 prefixes · 3.84K addresses IPv6 6 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 10 |
Registry
Allocation record
- Registry
- ARIN
- Handle
53173- Registry name
- ASN53173
- Registrant
- Sobral Telecomunicações Ltda
- Abuse contact
- Raimundo Vasconcelos Barros
- Registered
- 2010-07-30
- Last changed
- 2026-01-27
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- SOBRALNET
- Also known as
- SOBRALNET
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Heavy Inbound
- Peering policy
- Open
- IRR as-set
AS53173:AS-CONE-ALL- Present at
- 2 exchanges
- Facilities
- 2 facilities
- Website
- https://www.sobralnet.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, 17 with no ROA
- ROAs
- 0 authorising AS53173
- ASPA
- no ASPA record
- IRR
- 18% registered · 3 of 17 announcements
- Route objects
- 20 naming AS53173
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: 431 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