ADV Security (S) Pte Ltd — single MA-L block (C8-1E-8E)

ADV Security (S) Pte Ltd is a Singapore-registered distributor of security and networking hardware, holding a single IEEE MA-L block, C8:1E:8E, registered under an older Dunlop Street address in the city-state. Unlike a bare single-prefix registration with no independent footprint, this entity resolves to a real, ongoing business: Singapore's UEN registry lists it as UEN 200705845G, incorporated 9 April 2007 as an Exempt Private Company Limited by Shares, with its stated principal activity as wholesale of security and fire-fighting equipment. Its current commercial website lists an updated operating address and phone line, and shows a catalog of CCTV, DVR/NVR, access-control, PoE-switch, UPS, and cabling products carrying established third-party brands rather than an own-branded device line. That reseller positioning is the entry's central caveat — the company itself is verifiable and active, but nothing found ties the C8:1E:8E prefix specifically to a device the company manufactures or badges as its own, so the OUI's device-level use case stays unconfirmed. A separate, unrelated Taiwan manufacturer trading as "ADV International" also uses an ADV-style brand for CCTV gear; the two must not be conflated.

OUI assignment

C8-1E-8E (single MA-L block, hex C81E8E) [Confirmed] — the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI); no MA-M or MA-S entry found for this organization [Confirmed] — the IEEE MA-L registry (grep across the IEEE MA-M registry, the IEEE MA-S registry returned no match)

Organization name / address

ADV Security (S) Pte Ltd, 56 Dunlop Street, SG 209386 [Confirmed] — the IEEE MA-L registry; cross-confirmed by short-name alias "ADVSecurityP" in the Wireshark manufacturer database

Date registered

Unknown — IEEE's public OUI registry (the IEEE MA-L registry columns: Registry, Assignment, Organization Name, Organization Address) publishes no assignment/registration date for MA-L entries; none is attributed here, and any third-party "date registered" figure would be a database artifact, not an IEEE fact. [Confirmed as Unknown]

Corporate identity

matches Singapore UEN 200705845G, "Adv Security (S) Pte. Ltd.", incorporated 9 April 2007 as an Exempt Private Company Limited by Shares; principal activity wholesale of security and fire-fighting equipment [Likely] — https://www.sgpbusiness.com/company/Adv-Security-S-Pte-Ltd (single business-registry aggregator source, not a direct ACRA pull)

Company status

active, currently operating with a live website and product catalog; current address 33 Ubi Avenue 3 #02-41 Vertex, Singapore 408868, phone (65) 6702 4988 — differs from the older IEEE-registered Dunlop Street address, consistent with a relocation since a ~2007-era registration rather than a discrepancy

[Confirmed] — https://www.advcctv.com.sg/, https://advcctv.com.sg/contact

Device / product types

wholesale distributor of CCTV cameras, DVR/NVR recorders, access control, PoE switches, UPS, intercoms, and cabling, carrying third-party brands (Hikvision, Hanwha Vision, Mycam, APC, Ruijie, Soyal, Axis Communication, TRENDnet, Draka/Prysmian, Milestone, Seagate/WD/SanDisk)

[Confirmed] — https://www.advcctv.com.sg/

Own-brand device line

none found; positions itself as a reseller/distributor of established brands rather than a manufacturer under its own name. Not to be confused with the unrelated Taiwan-based CCTV manufacturer "ADV International," which also trades under an ADV-style brand.

[Likely] — https://www.advcctv.com.sg/, http://www.advintl.com/en/

Device-type corroboration for this specific OUI

no source ties C8:1E:8E to a specific product model; since the company's public business is reselling other vendors' hardware, there is no independent confirmation of what device type actually carries this prefix. [Unknown]

Multiple-OUI check

only one MA-L row found for "ADV Security" in the repo's registry mirror; not independently re-verified against a fresh IEEE pull (a direct fetch of standards-oui.ieee.org returned an anti-bot HTTP 418 response during research) [Likely] — the IEEE MA-L registry (single match)

Analyst note

single-OUI registrant with substantive, verifiable company identity (UEN incorporation record, live business, decades of trading history) — clears the abstain bar — but the specific device type carrying C8:1E:8E remains unconfirmed since the company sells third-party hardware rather than its own.