asn.dev

Autonomous system

AS28357 RBS ZERO HORA EDITORA JORNALISTICA

Unclassified APNIC

IPv4 addresses 4.10K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

RBS Zero Hora

Brazil · AI-generated

media business brazil

The AS handle RBS ZERO HORA EDITORA JORNALISTICA is held by RBS Zero Hora.

What it's used for

  • The space carries internal corporate infrastructure for a media organization, as indicated by the registrant name RBS ZERO HORA EDITORA JORNALÍSTICA and netname 373096.
  • The inventory consists of 4096 IPv4 addresses in a single /20 prefix and 1 IPv6 prefix, with only 2 observed neighbours, implying a small, self-contained business network rather than a transit or access provider.

Notable

  • The registrant RBS ZERO HORA EDITORA JORNALÍSTICA matches the AS holder, confirming direct ownership of the address space.
  • The address inventory is compact and finely subdivided, consistent with an internal corporate estate for a specific business unit or site.

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

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4230CLARO S.A.180
AS266438GNS FIBRA3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 · 4.10K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
28357
Registry name
ASN28357
Registrant
RBS ZERO HORA EDITORA JORNALÍSTICA
Abuse contact
Departamento Jurídico Grupo RBS
Registered
2007-11-01
Last changed
2015-07-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS28357
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS28357

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 1,784 prefixes, as published 2026-10-19. 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