Tellescom is a Brazilian telecommunications-equipment manufacturer that holds nine IEEE MA-L blocks, all registered to "TELLESCOM INDUSTRIA E COMERCIO EM TELECOMUNICACAO" at an address in the Distrito Industrial of Manaus, Amazonas (the Manaus Free Trade Zone). The company designs and builds broadband customer-premises gear for Brazilian ISPs and telecom operators: Wi-Fi routers, CPE, ONU/ONT optical terminals, HGU home gateways, Wi-Fi 6 mesh routers, Wi-Fi repeaters, set-top boxes, and IoT devices. Its group subsidiary Azonlabs operates as the dedicated CPE/ONU/ONT/HGU product line for ISPs, and the company runs a notable technology partnership with Radisys around open, disaggregated PON broadband software (Connect Open Broadband) aimed at the Brazilian market. Founded in 2008 and headquartered in São Paulo, Tellescom manufactures in the Manaus Free Trade Zone with additional capacity under development in Cachoeirinha, Rio Grande do Sul. The single most important caveat for any OUI work here is dating: IEEE publishes no registration date for OUI/MA-L assignments, so the per-prefix "date registered" values shown on third-party MAC lookup tools (e.g. maclookup.app, ranging roughly 2016 to 2025 across these nine blocks) are database artifacts, not first-party IEEE facts — they must never be surfaced as an IEEE registration date. No CVEs or public vulnerability disclosures were found for Tellescom devices as of the June 2026 research pass; standard CPE/ONU hygiene (firmware update cadence, default-credential and remote-management exposure) applies as it would to any ISP-deployed broadband endpoint.
- IEEE assignment
- 9 prefixes → TELLESCOM INDUSTRIA E COMERCIO EM TELECOMUNICACAO [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv)
- Registry / block size
- MA-L (24-bit OUI); 9 IEEE prefixes; not present in MA-M (mam.csv) or MA-S (oui36.csv) [Confirmed] — enrichment/registries/oui.csv, mam.csv, oui36.csv
- Registered address / country
- Av. Buriti, 1900 – Setor B – Distrito Industrial, Manaus, Amazonas, BR 69075-000 [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv)
- Verified prefixes (all MA-L)
- 10:41:21, 10:72:23, 44:89:6D, 54:2F:8A, 68:D4:0C, 78:E9:CF, 94:EA:EA, B8:1E:61, F4:54:20 [Confirmed] — enrichment/registries/oui.csv, maclookup.app
- No IEEE registration date
- IEEE's public OUI data (oui.csv columns: Registry, Assignment, Organization Name, Organization Address) publishes no assignment/registration date; allocated_date stays Unknown/null [Confirmed] — enrichment/registries/oui.csv. NOTE: per-prefix "date registered" values on maclookup.app (~2016-06-27 earliest to ~2025-12-11 latest) are third-party database artifacts, not IEEE facts.
- Company / status
- active Brazilian telecom-equipment manufacturer, founded 2008, HQ São Paulo [Confirmed] — https://tellescom.com.br/en/about-us/
- Manufacturing locations
- Manaus Free Trade Zone (Amazonas) — active; Cachoeirinha (Rio Grande do Sul) — under development [Confirmed] — https://tellescom.com.br/en/about-us/
- Device types
- Wi-Fi routers, CPE, ONU/ONT, HGU, Wi-Fi 6 mesh routers, Wi-Fi repeaters, set-top boxes, IoT devices — built for Brazilian ISPs / telecom operators [Confirmed] — https://tellescom.com.br/en/industries/, https://tellescom.com.br/en/group-companies/
- Subsidiary / related
- Azonlabs (CPE/ONU/ONT/HGU and Wi-Fi 6 mesh product arm for ISPs); investment in Beegol (AI/ML broadband & Wi-Fi monitoring) [Confirmed] — https://tellescom.com.br/en/group-companies/
- Notable partnership
- Radisys — open/disaggregated PON broadband software (Connect Open Broadband) for the Brazilian market [Confirmed] — https://www.radisys.com/partnerprogram/partnersolutions/tellescom
- Website
- https://tellescom.com.br/en/ [Confirmed] — vendor site
- Security context
- no CVEs or public vulnerability disclosures found (June 2026 pass); standard ISP-deployed CPE/ONU considerations apply (firmware cadence, default credentials, remote-management exposure) [Likely] — research-pass negative finding; absence of evidence, not proof
- Analyst note
- a Tellescom MA-L OUI on a globally-administered address reliably identifies genuine Tellescom-built broadband CPE; randomized/locally-administered addresses on consumer Wi-Fi will not resolve here.