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.

Device class

Unknown — no product page, website, or named device model found under any of the three OUI prefixes

Also seen on

No corroborating device sightings found (searched vendor name, each OUI, and generic router/botnet terms)

Registrant type

Active Russian legal entity (LLC), not an individual or shell registration

OUI block count

3 (F4:E5:78, 58:F8:5C, 48:45:CF), all MA-L

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.