JIA HUANG JHAN YE CO.,LTD (58:20:8A:50:00:00 /28)

JIA HUANG JHAN YE 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.

Prefix58:20:8A:50:00:00 /28

Vendor address1F., No. 19, Huanmei 2nd St., Donggang Township Plngtung County TW 928

Block range58:20:8A:50:00:00– 58:20:8A:5F: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

58:20:8A:50:00:00 58:20:8A:57:FF:FF 58:20:8A:5F:FF:FF