GTEK GLOBAL CO.,LTD (D4:A0:FB:E0:00:00 /28)

GTEK GLOBAL CO.,LTD 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.

PrefixD4:A0:FB:E0:00:00 /28

Vendor addressNo3/2/13 Ta Thanh Oai, Thanh Tri district Hanoi Vietnam VN 10000

Block rangeD4:A0:FB:E0:00:00– D4:A0:FB:EF: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

D4:A0:FB:E0:00:00 D4:A0:FB:E7:FF:FF D4:A0:FB:EF:FF:FF