EMAC, Inc. (70:B3:D5:72:90:00 /36)

EMAC, Inc. MA-S

MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.

Prefix70:B3:D5:72:90:00 /36

Vendor address2390 EMAC Way Carbondale IL US 62901

Block range70:B3:D5:72:90:00– 70:B3:D5:72:9F:FF

Address capacity4,096

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

70:B3:D5:72:90:00 70:B3:D5:72:97:FF 70:B3:D5:72:9F:FF

Other blocks registered to EMAC, Inc.

28:BC:56:00:00:00 /24 MA-L 00:50:C2:0E:00:00 /36 IAB 00:50:C2:97:40:00 /36 IAB 00:50:C2:B8:70:00 /36 IAB 00:50:C2:C9:20:00 /36 IAB 00:50:C2:D6:20:00 /36 IAB 00:50:C2:D7:10:00 /36 IAB 00:50:C2:E6:60:00 /36 IAB 00:50:C2:F6:20:00 /36 IAB 00:50:C2:F8:A0:00 /36 IAB 40:D8:55:09:D0:00 /36 IAB 40:D8:55:13:10:00 /36 IAB