CT Company (18:74:E2:30:00:00 /28)

CT Company 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.

Prefix18:74:E2:30:00:00 /28

Vendor addressGodovikova , 9, Moscow Moscow RUSSIA RU 129085

Block range18:74:E2:30:00:00– 18:74:E2:3F: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

18:74:E2:30:00:00 18:74:E2:37:FF:FF 18:74:E2:3F:FF:FF

Other blocks registered to CT Company

00:50:C2:46:20:00 /36 IAB 00:50:C2:85:60:00 /36 IAB 00:50:C2:A8:20:00 /36 IAB 00:50:C2:B6:F0:00 /36 IAB 00:50:C2:CA:30:00 /36 IAB 00:50:C2:DC:B0:00 /36 IAB 00:50:C2:E9:20:00 /36 IAB 00:50:C2:F2:40:00 /36 IAB 00:50:C2:FB:30:00 /36 IAB 40:D8:55:07:20:00 /36 IAB 40:D8:55:15:F0:00 /36 IAB 70:B3:D5:00:50:00 /36 MA-S