AS28276 — AS28276 - Mikrocenter Informatica Ltda.

AS28276 announces 6 IPv4 prefixes covering 16,128 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 186.249.96.0/19
• 187.102.96.0/21
• 187.102.104.0/22
• 187.102.108.0/23
• 187.102.110.0/24
• 189.14.64.0/20
• 2804:56a4::/32

Upstream networks

• AS14840 BR.Digital Telecom
• AS61568 ALOO TELECOM - FSF TECNOLOGIA SA

Adjacent networks

• AS14840 BR.Digital Telecom
• AS61568 ALOO TELECOM - FSF TECNOLOGIA SA

Routing security

• RPKI: 15 valid, 0 invalid and 0 not-found announcements; 7 ROAs.
• ASPA: none published.
• IRR: 53% of announcements registered; 23 route objects.
• Listed in as-sets: AS-1TELECOM-CUSTOMERS01, AS-CTBC-CUSTOMERS113, AS-EMBRATELNET, AS-FORTEL-CUSTOMERS, AS-HURRICANEV6, AS-MOB-CUSTOMER-AS61832, AS14840:AS-CUSTOMERS-01, AS61568:AS-ALOO-TELECOM.

Internet exchanges

• IX.br (PTT.br) Porto Alegre — Porto Alegre, Brazil
• IX.br (PTT.br) Salvador — Salvador, Brazil