LLC Proizvodstvennaya Kompania "TransService" — 3 prefixes (MA-L)

A MAC address starting with F4:E5:78, 58:F8:5C, or 48:45:CF belongs to LLC Proizvodstvennaya Kompania "TransService" (ООО Производственная Компания "ТрансСервис"), a Moscow-based Russian company holding three separate IEEE MA-L OUI assignments — the specific device class these blocks were used for is not confirmed by any product page or model listing.

The vendor is not a bare single-OUI registration. It matches an identifiable, active Russian legal entity — INN 7727046787, OGRN 1147748157831, formed 27 December 2014 — at the same registered address across multiple independent corporate registries (rusprofile.ru, audit-it.ru, spark-interfax.ru, list-org.com), which is why this entry clears the bar for a substantive vendor page despite holding no publicly documented product.

The company's registered OKVED activity codes include electronic component manufacturing (26.11) and radio-electronic communication equipment production (26.30.15/26.30.5) alongside its primary wholesale-trade code (46.90) — directionally consistent with a firm that holds multiple hardware OUI blocks, but this is not a confirmed device match and should be treated as circumstantial.

A data-quality trap to flag: some third-party MAC-lookup aggregators (uic.io, maclookup.app) display a "registered 11 June 2020" style date for these OUIs. That is a database-scrape artifact, not an IEEE fact — IEEE's public OUI data carries no assignment date for any MAC/OUI block, and this date must never be presented as an IEEE registration date. The 2014 entity-formation date is a genuine first-party fact but is a separate thing entirely (company registration, not OUI assignment) and should not be conflated with it.

No CVEs, malware, botnet, or firmware-vulnerability reports were found tied to this vendor name or to any of its three MAC prefixes after a direct search — a sourced null result, not an oversight.

IEEE assignment

3 prefixes → LLC Proizvodstvennaya Kompania "TransService", registered Moscow, RU [Confirmed] — the IEEE MA-L registry (lines 1216, 8393, 31964)

Registry / block size

MA-L (24-bit OUI); holds 3 IEEE prefixes [Confirmed] — the IEEE MA-L registry

HQ / country

Ulitsa Podolskih Kursantov, build. 3, of. 133, Moscow, RU 117545 [Confirmed] — the IEEE MA-L registry

Company status

active; matched to Russian legal entity INN 7727046787, OGRN 1147748157831, formed 27 Dec 2014 [Confirmed] — https://www.rusprofile.ru/id/7809690, https://www.audit-it.ru/contragent/1147748157831_ooo-proizvodstvennaya-kompaniya-transservis, https://spark-interfax.ru/moskva-chertanovo-tsentralnoe/ooo-transservis-inn-7727046787-ogrn-1147748157831-55e506cbbba54d8782f9ea5daaecdad9, https://www.list-org.com/company/8061341

Device types

Unknown — no product page or device model identified under any of the three OUI prefixes [Unknown]

Notable products

Unknown [Unknown]

Verified sample prefixes (all MA-L)

F4:E5:78, 58:F8:5C, 48:45:CF [Confirmed] — the IEEE MA-L registry

Industry indicator

OKVED codes 26.11 (electronic component manufacturing), 26.30.15 and 26.30.5 (radio-electronic communication / broadcast equipment parts) alongside primary wholesale-trade code 46.90 — directionally consistent with holding hardware OUI blocks, not a confirmed product match

[Likely] — https://www.audit-it.ru/contragent/1147748157831_ooo-proizvodstvennaya-kompaniya-transservis

Dates caveat

third-party MAC-lookup aggregators show a "registered 11 June 2020" style date for these OUIs — this is a database-scrape artifact, not an IEEE fact; IEEE publishes no registration/assignment date for MAC prefixes [Confirmed] — https://uic.io/en/mac/vendor/llc_proizvodstvennaya_kompania_transservice/, https://maclookup.app/vendors/llc-proizvodstvennaya-kompania-transservice

Security context

no CVEs, malware, botnet, or firmware-vulnerability reports found tied to this vendor or any of its three prefixes [Confirmed sourced null] — searched vendor name, each OUI, generic router/botnet terms; no hits

Related vendors

none identified [Unknown]

Analyst note

three separate OUI assignments plus a matched, active legal entity verifiable across independent corporate registries is what distinguishes this from a bare single-OUI shell; no confirmed product line means device-class claims should stay Unknown rather than inferred from OKVED codes alone.