Vaisala Oyj

MA-M
MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix40:ED:98:70:00:00 /28
Vendor addressVanha Nurmijarventie 21 VANTAA FI Fin-01670
RegisteredSep 18, 2016
Block range40:ED:98:70:00:00– 40:ED:98:7F: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 →

Example addresses in this block

Where this block sits

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Vaisala Oyj holds 4 registered blocks in the IEEE registry, ranking #871 of 33,427 organizations by block count.

Other blocks registered to Vaisala Oyj