MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix60:15:92:40:00:00 /28
Vendor addressRichard Johnsensgate 4 Stavanger Rogaland NO N-4021
Country🇳🇴 Norway
RegisteredJan 20, 2021
Block range60:15:92:40:00:00– 60:15:92:4F: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
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60:15:92:30:00:00 /28
OSI TECHNOLOGY CO.,LTD.
Next
60:15:92:50:00:00 /28
Comfit HealthCare Devices Limited
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Zaptec holds 2 registered blocks in the IEEE registry, ranking #3,480 of 33,427 organizations by block count.
Other blocks registered to Zaptec