Accutron Instruments Inc. MAC Prefix Identification

A MAC address beginning with 90:9F:43 matches an IEEE assignment to Accutron Instruments Inc.; the prefix alone does not identify a device or product. The IEEE record lists one MA-L assignment for this legal name. Accutron’s privacy notice also identifies the company and describes its website services, but does not connect any product or device category to this prefix.

The prefix is 24 bits of a 48-bit MAC address, leaving 24 bits after it and 16,777,216 mathematically possible suffix values. That is a count of possible values, not a count of devices or shipments. A matching address establishes the registry prefix match only; it does not establish deployment, traffic prevalence, current vendor identity, or security status.

In 90 the Group bit is 0 and the Local bit is 0. Those bits are fixed for an exact 90:9F:43 prefix match. Altering either bit changes the prefix, rather than describing variation within this assigned prefix. RFC 7042 explains the significance of these bits for MAC identifiers.

Device type

Unknown; no source maps a device category to this exact prefix [Unknown] — https://standards-oui.ieee.org/oui/oui.csv

Company

Accutron Instruments Inc. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Registry

MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Prefix

90:9F:43 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Total prefixes

1 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Country

Canada [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Industry

Unknown

Notable products

Unknown

Device types

Unknown

Website

https://accutroninstruments.com/privacy-policy-2/ [Confirmed] — https://accutroninstruments.com/privacy-policy-2/

Related vendors

Unknown

Organization status

Unknown

Historic prefix

Unknown

Assignment date

Assignment dates are unavailable in these IEEE CSV records.