CELESTICA INC.

MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

Prefix5C:AA:A2:00:00:00 /24

Vendor address1900-5140 Yonge Street PO Box 42 Toronto Ontario CA M2N 6L7

RegisteredJul 3, 2026

Block range5C:AA:A2:00:00:00– 5C:AA:A2:FF:FF:FF

Address capacity16,777,216

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

5C:AA:A2:00:00:00 5C:AA:A2:7F:FF:FF 5C:AA:A2:FF:FF:FF

Where this block sits

CELESTICA INC. holds 11 registered blocks in the IEEE registry, ranking #274 of 33,427 organizations by block count.

Other blocks registered to CELESTICA INC.

00:E0:EC:00:00:00 /24 MA-L 0C:48:C6:00:00:00 /24 MA-L 34:AD:61:00:00:00 /24 MA-L 64:F6:4D:00:00:00 /24 MA-L 88:5A:23:00:00:00 /24 MA-L 94:64:42:00:00:00 /24 MA-L B4:DB:91:00:00:00 /24 MA-L D8:49:BF:00:00:00 /24 MA-L DC:DA:4D:00:00:00 /24 MA-L