MAC address vendor

A Beltrónica - Companhia de Comunicações, Lda — 00:15:34 (MA-L)

Primary prefix
00:15:34
Block
MA-L
Status
Active

Summary

// what this is
A Beltrónica - Companhia de Comunicações, Lda is registered to MAC prefix 00:15:34 in the IEEE OUI database. When a device's MAC address begins with 00:15:34, that block was registered by A Beltrónica - Companhia de Comunicações, Lda — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
A 00:15:34-prefixed MAC likely identifies PABX/IP-PBX telephony hardware from this Portuguese vendor; useful primarily for asset-inventory / vendor-identification purposes on enterprise telephony networks rather than as a standalone security signal.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium

A Beltrónica - Companhia de Comunicações, Lda holds a single confirmed IEEE MA-L block, 00:15:34, registered to a Lisbon, Portugal address on Rua Dr. José Baptista de Sousa. Read on the registry row alone this would look like a bare shell registration, but corroborating directory and web sources place it as an identifiable Portuguese telecommunications-equipment wholesaler with a distinguishable product line rather than an anonymous single-OUI holder. The company markets itself as a PABX / IP-PBX (private branch exchange) vendor under the product name "BELCOM-RDIS PLUS," alongside DECT multicell systems, and its own marketing copy describes activity across multiple Portuguese-speaking markets. Independent Portuguese business directories (empresasnegocios.pt among them) list the company's registered activity as wholesale trade of electronic and telecommunications equipment and parts, which is consistent with a PABX/telephony-hardware vendor rather than a shell. A limitation worth flagging honestly: the company's own domains (abeltronica.com, pt.abeltronica.com) could not be fetched directly in this pass because their TLS certificates have expired, so the product-line claims rest on corroborating search-result snippets of those pages rather than a first-party document read, and are tagged [Likely] rather than [Confirmed] accordingly. No second OUI assignment under this exact legal name was found anywhere in the cached IEEE registry data (MA-L, MA-M, or MA-S).

OUI / registry class
00:15:34, MA-L [Confirmed] — the IEEE MA-L registry
Organization name
A Beltrónica-Companhia de Comunicações, Lda [Confirmed] — the IEEE MA-L registry, corroborated by https://udger.com/resources/mac-address-vendor-detail?name=a_beltronica-companhia_de_comunicacoes_lda
Organization address
registry row is truncated ("Rua Dr. José Baptista de Sousa, 27 Lisbon PT 1549-002 Lis") [Confirmed] — the IEEE MA-L registry; independently corroborated with the fuller address "R. Dr. José Baptista de Sousa, Nº 27/27A, 1549-002 Lisboa, Portugal" [Confirmed — two independent angles agree] — https://udger.com/resources/mac-address-vendor-detail?name=a_beltronica-companhia_de_comunicacoes_lda, https://empresasnegocios.pt/empresa/a-beltronica-companhia-de-comunicacoes-lda-45239
OUI identity cross-check
macvendors.com API and udger.com both resolve 00:15:34 to this exact legal name [Confirmed — two independent angles agree] — https://api.macvendors.com/00:15:34:00:00:00, https://udger.com/resources/mac-address-vendor-detail?name=a_beltronica-companhia_de_comunicacoes_lda
Date registered
Unknown / null — IEEE's public OUI registry (the IEEE MA-L registry) publishes no assignment/registration date column; none of the third-party lookups checked displayed one either (maclookup.app returned 404), so nothing was fabricated or needed to be nulled out
[Confirmed] — the IEEE MA-L registry (schema)
IANA Reference
N/A — this is an IEEE MAC/OUI assignment, not an IANA-administered registry [Confirmed]
Company status / activity
active per Portuguese business directory listing; registered activity is wholesale trade of electronic/telecommunications equipment and parts; CAE code and incorporation date not confirmed [Likely] — https://empresasnegocios.pt/empresa/a-beltronica-companhia-de-comunicacoes-lda-45239
Device / product context
PABX / IP-PBX telephone exchange systems; product line "BELCOM-RDIS PLUS"; DECT multicell systems; own marketing describes activity across Portuguese-speaking markets [Likely — corroborated via search-result snippets of the company's own site, not a direct fetch (TLS certificate expired on abeltronica.com / pt.abeltronica.com)] — http://www.abeltronica.com/Comunicacao_Empresarial.html, http://pt.abeltronica.com/en/
Additional OUI assignments under identical entity
none found — single MA-L block only; no matches for this org or OUI in the IEEE MA-M registry (MA-M) or the IEEE MA-S registry (MA-S) [Confirmed via registry scan] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry
Company substance
identifiable company with a distinguishable product/device context (not a bare single-OUI shell), corroborated across multiple independent Portuguese business directories; caveat is a single OUI assignment and product claims resting on search-snippet corroboration rather than a direct first-party fetch [Likely] — https://empresasnegocios.pt/empresa/a-beltronica-companhia-de-comunicacoes-lda-45239, https://udger.com/resources/mac-address-vendor-detail?name=a_beltronica-companhia_de_comunicacoes_lda
Security context
no OUI-specific CVEs or abuse patterns surfaced in this pass; not exhaustively searched [Unknown]
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:15:34MA-L
[ 03 ] — Related

Keep digging.