Data Recall Ltd. — 2 prefixes (MA-L)

A MAC address beginning 02:70:B3 or 00:70:B3 traces to Data Recall Ltd., a UK-registered company holding two separate IEEE MA-L assignments — but no source confirms exactly which networked hardware carries them.

Data Recall Ltd. is not a bare, unidentifiable registrant. Historical records document a company by this name based at Sondes Place, Dorking, Surrey, UK, that built the "Data Recall Diamond" line of daisy-wheel word-processing typewriters (models One, III, Five/V, and 7) in the late 1970s and early 1980s.

That documented product line predates common Ethernet NIC adoption in office equipment, so it is Unknown whether these two OUI blocks were used on the word processors themselves, on later networked equipment from the same company, or on some other product entirely — no source links the blocks to a specific device.

No current UK Companies House record or successor entity was found, so the company's present operating status is Unknown and it is plausibly defunct. No CVEs, botnet activity, or security disclosures were found tied to Data Recall hardware; given the apparent legacy, pre-networking-era product line, a modern sighting of either prefix most plausibly reflects an old or rare surviving device rather than an active security concern.

IEEE assignment

02:70:B3, 00:70:B3 → Data Recall Ltd., registered Dorking, Surrey, GB [Confirmed] — the IEEE MA-L registry (IEEE OUI registry, cached 2026-07-10)

Registry / block size

MA-L (24-bit OUI) × 2 assignments; no per-company total published by IEEE [Confirmed] — the IEEE MA-L registry

HQ / country

Sondes Place, Dorking, Surrey, United Kingdom (GB) [Confirmed] — the IEEE MA-L registry

Company status

Unknown / likely defunct — no current Companies House match, no evidence of acquisition or rename [Unknown] — https://find-and-update.company-information.service.gov.uk

Company substance

identifiable, historically-documented company (Data Recall Diamond word processors, Dorking UK, late 1970s-early 1980s) holding two separate IEEE MA-L assignments, above the bare single-OUI-no-information floor [Likely] — https://en.wikipedia.org/wiki/Data_Recall_Diamond

Device types

Unknown — only documented products are standalone daisy-wheel word-processing typewriters (Diamond One/III/Five(V)/7); no confirmed link to MAC-bearing networked hardware [Unknown] — https://en.wikipedia.org/wiki/Data_Recall_Diamond

Notable products

Data Recall Diamond One, Diamond III, Diamond Five (V), Diamond 7 word processors [Likely] — https://en.wikipedia.org/wiki/Data_Recall_Diamond

Registration date note

IEEE's public OUI data (the IEEE MA-L registry: Registry, Assignment, Organization Name, Organization Address) publishes no assignment/registration date column. A third-party tool lists "09 November 2000" for 00:70:B3; this is a database artifact, not an IEEE fact

[Confirmed] — https://maclookup.app/macaddress/0070b3

Security context

no CVEs, botnet activity, or vulnerability disclosures found tied to Data Recall hardware in general or security-focused searches [Unknown] — no source found

Analyst note

two confirmed OUI assignments plus a named, historically-documented company clear the abstention floor for a bare single-OUI shell, but neither the current operating status nor the specific MAC-bearing device is confirmed — treat any live sighting of these prefixes as most likely a legacy or rare surviving unit rather than active infrastructure