asn.dev

Autonomous system

AS28276 Mikrocenter Informatica Ltda.

Unclassified LACNIC

IPv4 addresses 16.13K 17 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 2 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Mikrocenter

Brazil · AI-generated

retail business brazil

AS28276 is operated by Mikrocenter Informática Ltda., a major Brazilian electronics retailer.

What it's used for

  • The address space carries corporate infrastructure, evidenced by reverse DNS entries pointing to mikrocenter.com.br across all sampled prefixes.
  • The AS announces 16128 IPv4 addresses across 17 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a large internal corporate estate rather than a transit or access network.

Notable

  • All registrants in the RDAP data match the announcer, consistently listed as Mikrocenter Informática Ltda.
  • The address inventory is finely subdivided into multiple /22, /23, and /24 blocks, consistent with site-by-site segmentation for a large retail chain.

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

Recorded at 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) Porto AlegrePorto Alegre, Brazil177.52.39.136
IX.br (PTT.br) SalvadorSalvador, Brazil200.219.145.198

Transit providers

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

ASNetworkPaths seen
AS14840BR.Digital Telecom439
AS61568ALOO TELECOM - FSF TECNOLOGIA SA410

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 17 prefixes · 16.13K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil18

Registry

Allocation record

LACNIC · via Atlas (registry data)
Registry
LACNIC
Registered
2007-04-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 15 valid, 0 with no ROA
ROAs
7 authorising AS28276
ASPA
no ASPA record
IRR
100% registered · 15 of 15 announcements
Route objects
23 naming AS28276

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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