Teracom Telematica S.A. (Datacom) — 3 prefixes (MA-L)

Teracom Telematica S.A. — trading as Datacom — is a Brazilian telecommunications equipment manufacturer headquartered at Rua América 1000, Eldorado do Sul, Rio Grande do Sul, founded in 1998 and registered under CNPJ 02.820.966/0001-09. Datacom is not a bare OUI registration: it is a member of ABINEE (Brazil's electrical/electronics industry association) and received R$30 million in 2024–2025 BNDES government financing for an innovation project, evidence of an operating, product-shipping company rather than a shell. IEEE's MA-L registry lists exactly three blocks under this exact org name — 00:04:DF, 70:CD:91, and 18:81:ED — all resolving to the same Eldorado do Sul facility (the oldest block's address string is simply a looser, older-format rendering of the identical location, not a second site). Datacom's public product catalog corroborates carrier-grade access-network hardware drawing from these prefixes: GPON OLTs (DM4610) and ONUs (DM984), Metro Ethernet access switches (DM4370), and SDH/multi-service access platforms. A reflected-XSS advisory (CVE-2026-7000 / EUVD-2026-25674) affecting the DM4100's VLAN Name field surfaced in a VulDB search snippet, though the full advisory page itself returned HTTP 403 and could not be independently confirmed. This entity is entirely unrelated to two similarly-named registrants — Teracom Limited (India) and Teracom Ltd. (Bulgaria) — despite the shared "Teracom" name fragment.

IEEE assignment

3 MA-L blocks (00:04:DF, 70:CD:91, 18:81:ED) → TERACOM TELEMATICA S.A, Eldorado do Sul, RS, Brazil [Confirmed] — the IEEE MA-L registry

Registry / block size

MA-L only (24-bit OUI); no MA-M (48-bit) or MA-S (36-bit) assignments found for this exact org name [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

HQ / address

Rua América 1000, Eldorado do Sul, RS 92990-000, Brazil (all 3 blocks resolve to this one facility) [Confirmed] — the IEEE MA-L registry, https://www.emis.com/php/company-profile/BR/Teracom_Telematica_SA_en_4046458.html

Company status

active; trade name "Datacom," founded 1998, CNPJ 02.820.966/0001-09 [Confirmed] — https://www.emis.com/php/company-profile/BR/Teracom_Telematica_SA_en_4046458.html

Industry association / financing

ABINEE member; received R$30M BNDES financing (2024–2025) for a telecom innovation project [Confirmed] — https://www.abinee.org.br/associada/cod/1325/, https://agenciadenoticias.bndes.gov.br/industria/BNDES-apoia-com-R$-30-milhoes-projeto-de-inovacao-de-empresa-de-telecomunicacoes-de-Eldorado-do-Sul-RS/

Device types

GPON OLT (DM4610), GPON ONU (DM984), Metro Ethernet access switch (DM4370), SDH NG / multi-service access platforms [Confirmed] — https://datacom.com.br/en/produtos/todos, https://datacom.com.br/en/produtos/switches/dm4370

Registration date

not published by IEEE (the IEEE MA-L registry has no date column for any of the 3 blocks); third-party "date registered" figures (2001-01-24, 2011-02-21, 2018-12-20 per maclookup.app) are database artifacts, not IEEE facts [Confirmed — absence] — the IEEE MA-L registry

Security context

CVE-2026-7000 / EUVD-2026-25674, reflected XSS in the Datacom DM4100's VLAN Name field [Likely — sourced from a single VulDB search-result snippet; the full advisory page returned HTTP 403 and was not independently confirmed] — https://vuldb.com/vuln/359559

Related/excluded entities

"Teracom Limited" (India, MA-L 545FA9/002615/9C8EDC) and "Teracom Ltd." (Bulgaria, MA-L 5C32C5) are separate legal entities and NOT part of this vendor entry despite the shared name fragment [Confirmed] — the IEEE MA-L registry

Analyst note

three co-located MA-L blocks plus an independently verifiable product catalog and government financing record clear the single-OUI-shell abstention bar — this is a substantive, identifiable vendor, not a bare registration.