MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix5C:87:D8:20:00:00 /28
Vendor address1069 Stewart Drive, Suites 3-6 Ogden UT US 84404
Country🇺🇸 United States
RegisteredApr 16, 2024
Block range5C:87:D8:20:00:00– 5C:87:D8:2F:FF:FF
Address capacity1,048,576
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Ownership timeline
- Apr 16, 2024 – Jun 6, 2026 Freeus LLC name changed
- Jun 6, 2026 – present Becklar, LLC
Example addresses in this block
Where this block sits
Previous
5C:87:D8:10:00:00 /28
COMET SYSTEM, s.r.o.
Next
5C:87:D8:30:00:00 /28
Shenzhen Beiens Import and Export Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Becklar, LLC holds 4 registered blocks in the IEEE registry, ranking #697 of 33,421 organizations by block count.
Other blocks registered to Becklar, LLC