Active Imaging PLC — 00:60:25 (MA-L)

Active Imaging PLC of Maidenhead, Berkshire, UK holds a single IEEE MA-L block, 00:60:25, registered as "ACTIVE IMAGING PLC" at Hattori House, Maidenhead. Unlike a bare name-and-address registration, this OUI is backed by concrete, dated product history: in September 1995 Active Imaging merged with Data Cell Ltd and T-cubed Ltd to form Group Active Imaging Ltd, a specialist in high-performance image processing. The group's hardware line included the SIP80 image-processing chip (an implementation of Texas Instruments' TMS320C80), the MegaPipe scalable image processor — a 32×32 cross-point switch delivering over 4 Gbps of I/O bandwidth — and the ProtoPipe development software. Contemporary trade-press coverage describes the MegaPipe as carrying an embedded Ethernet interface for moving small amounts of data in and out, which plausibly accounts for the MAC block. The company appears defunct today: no live UK Companies House registration surfaces under this exact name, consistent with (though not proof of) a dissolved 1990s-era firm. Only one OUI block is registered under this name; no MA-M or MA-S sub-blocks exist. A common data-quality trap applies here as with any OUI: third-party lookup tools display an "Initial Registration" date (maclookup.app shows 22 April 1998) and a "Last Updated" date, but IEEE publishes no assignment dates in its OUI registry — those are undocumented database artifacts, not IEEE facts, and are not recorded here.

IEEE assignment

00:60:25 → ACTIVE IMAGING PLC [Confirmed] — the IEEE MA-L registry line 6220 (MA-L,006025,ACTIVE IMAGING PLC,HATTORI HOUSE MAIDENHEAD Berkshire SL6 4UB GB)

Registry / block size

MA-L (24-bit OUI); exactly one block under this name — no the IEEE MA-M registry (MA-M) or the IEEE MA-S registry (MA-S) match [Confirmed] — the cached registry snapshots{oui,mam,oui36}.csv

HQ / country

Hattori House, Maidenhead, Berkshire SL6 4UB, GB [Confirmed] — the IEEE MA-L registry line 6220

Registration date

none published — IEEE OUI data has no date column; maclookup.app's "22 April 1998" / "17 November 2015" are undocumented third-party database artifacts, not IEEE facts, and are not recorded [Confirmed no-IEEE-date] — the IEEE MA-L registry, https://maclookup.app/macaddress/006025

Company status

appears defunct — no live UK Companies House record under this exact name (absence is not proof of non-existence) [Likely] — Companies House search (no result)

Corporate history

merged Sept 1995 with Data Cell Ltd and T-cubed Ltd to form Group Active Imaging Ltd [Likely] — single-source trade-press archive, https://techmonitor.ai/technology/3_companies_come_together_in_group_active_imaging

Device / product context

SIP80 image-processing chip (TI TMS320C80 implementation); MegaPipe scalable image processor (32×32 cross-point switch, >4 Gbps I/O) with an embedded Ethernet interface; ProtoPipe development software [Likely] — https://techmonitor.ai/technology/3_companies_come_together_in_group_active_imaging

Industry

image-processing hardware and software [Likely] — same trade-press source

Security / abuse context

none found in this pass — 1990s specialized image-processing hardware, not consumer/IoT; sourced null, not fabricated [Unknown] — no source

Analyst note

An 00:60:25 address identifies genuine Active Imaging hardware, but the company is long defunct and these frame-grabber-class devices are unlikely on modern networks; treat any live sighting as legacy/industrial equipment.