Parpro System Corporation

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:80:00:00 /28

Vendor address6F, No. 478, Sec. 5, ZhongShan N. Rd., Taipei Select State TW 111005

RegisteredMay 31, 2025

Block rangeD4:A0:FB:80:00:00– D4:A0:FB:8F: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:80:00:00 D4:A0:FB:87:FF:FF D4:A0:FB:8F:FF:FF

Where this block sits

Previous D4:A0:FB:70:00:00 /28 Skyfri Corp Next D4:A0:FB:90:00:00 /28 Hangteng (HK) Technology Co., Limited

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

Parpro System Corporation holds 1 registered blocks in the IEEE registry, ranking #22,649 of 33,421 organizations by block count.