Digital Products — 2 prefixes (MA-L), two distinct organizations

The vendor slug digital-products is a consolidation artifact: two separate IEEE MA-L organizations normalize to the same slug under the project's slugifyVendor() logic, which strips the corporate stopwords "limited" and "inc." and folds commas and periods to spaces. The grouped entry therefore covers two unrelated companies that happen to share the surviving stem "Digital Products." The first is Digital Products Limited (OUI E4:38:8C), registered to 53 Clark Road, Rothesay, New Brunswick, Canada. The second is DIGITAL PRODUCTS, INC. (OUI 00:40:AF), registered to 411 Waverly Oaks Road, Waltham, Massachusetts, USA — a low-numbered 00:40:xx block consistent with an early-1990s-era allocation, though IEEE publishes no date to confirm that. These are different entities in different countries, not a single multi-OUI maker; they are merged only by the normalization collision, so the entry's prefix count of 2 reflects two organizations rather than one company holding two blocks. A near-namesake, "Unisight Digital Products" (OUI 70:B3:D5:2D:8, MA-S, Englewood CO), slugifies to a different stem (unisight-digital-products) and is explicitly NOT part of this group. Neither E4:38:8C nor 00:40:AF appears in the IEEE the IEEE MA-M registry or the IEEE MA-S registry registries; both are plain 24-bit MA-L blocks. As with every OUI, IEEE publishes no registration date, so allocated_date stays null — any third-party "date registered" for these prefixes is a database artifact, not an IEEE fact. Independent web research specific to these two organizations (product lines, company status, websites) was not obtained in this pass, so device-type and status fields remain Unknown rather than guessed.

IEEE assignment (1 of 2)

E4:38:8C → Digital Products Limited [Confirmed] — IEEE the IEEE MA-L registry (registries line 17594); MA-L (24-bit OUI)

IEEE assignment (2 of 2)

00:40:AF → DIGITAL PRODUCTS, INC. [Confirmed] — IEEE the IEEE MA-L registry (registries line 29998); MA-L (24-bit OUI)

Registry / block size

both MA-L (24-bit OUI, each up to 16,777,216 addresses) [Confirmed] — IEEE the IEEE MA-L registry

Total prefix count

2 — but spanning TWO distinct organizations merged by slug normalization, not one company holding two blocks [Confirmed] — IEEE the IEEE MA-L registry; project slugifyVendor() (this site's own tooling)

Slug-collision note

"Digital Products Limited" and "DIGITAL PRODUCTS, INC." both normalize to slug digital-products because the stopwords "limited" and "inc." are stripped and commas/periods become spaces; the two assignments are grouped under one vendor-digital-products entry with prefixCount 2

[Confirmed] — this site's own tooling

HQ / registry address (E4

38:8C): 53 Clark Road, Rothesay, New Brunswick, CA E2E 2K9 [Confirmed] — IEEE the IEEE MA-L registry

HQ / registry address (00

40:AF): 411 Waverly Oaks Road, Waltham, MA, US 02154 [Confirmed] — IEEE the IEEE MA-L registry

Country

E4:38:8C = CA (Canada); 00:40:AF = US (United States) [Confirmed] — IEEE the IEEE MA-L registry

Additional registries

neither prefix appears in IEEE the IEEE MA-M registry or the IEEE MA-S registry; both are MA-L only [Confirmed] — IEEE the IEEE MA-M registry, the IEEE MA-S registry

Not in this group

"Unisight Digital Products" (70:B3:D5:2D:8, MA-S, Englewood CO, US) slugifies to unisight-digital-products, a different entry — excluded [Confirmed] — IEEE the IEEE MA-S registry (line 6042)

No-IEEE-date note

IEEE publishes no OUI registration dates (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address). Any "date registered" for E4:38:8C or 00:40:AF is a database artifact, not an IEEE fact — not recorded. allocated_date stays null.

[Confirmed] — IEEE the IEEE MA-L registry

Device types

Unknown — no organization-specific web research obtained this pass for either Digital Products Limited or DIGITAL PRODUCTS, INC.; product lines not verified [Unknown]

Company status

Unknown — active/defunct status not verified for either organization this pass [Unknown]

Website

Unknown — no official site confirmed for either organization this pass [Unknown]

Analyst note

a globally-administered E4:38:8C address identifies genuine Digital Products Limited (Canada) hardware, and 00:40:AF identifies DIGITAL PRODUCTS, INC. (USA) hardware — two distinct vendors sharing one slug. Disambiguate by prefix, not by the merged vendor name, when classifying a device.