Sercomm Corporation. (30:49:50:20:00:00 /28)

Sercomm 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.

Prefix30:49:50:20:00:00 /28

Vendor address3F,No.81,Yu-Yih Rd.,Chu-Nan Chen Miao-Lih Hsuan TW 115

Block range30:49:50:20:00:00– 30:49:50:2F: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

30:49:50:20:00:00 30:49:50:27:FF:FF 30:49:50:2F:FF:FF

Other blocks registered to Sercomm Corporation.

00:0E:8F:00:00:00 /24 MA-L 00:C0:02:00:00:00 /24 MA-L 0C:73:29:00:00:00 /24 MA-L 10:50:72:00:00:00 /24 MA-L 14:2E:5E:00:00:00 /24 MA-L 38:02:DE:00:00:00 /24 MA-L 3C:62:F0:00:00:00 /24 MA-L 3C:98:72:00:00:00 /24 MA-L 60:CE:86:00:00:00 /24 MA-L 74:9D:79:00:00:00 /24 MA-L 78:81:02:00:00:00 /24 MA-L 78:94:B4:00:00:00 /24 MA-L