IEEE Registration Authority 4C:81:BE

4C:81:BE is a 24-bit MA-L MAC address block registered to IEEE Registration Authority in US.

Vendor

IEEE Registration Authority

MA-L · 24-bit OUI subdivided: vendor lookup does not apply

4C:81:BE

Unicast · Universally administered (U/L bit clear)

Matched prefix: 4C:81:BE
Match: MA-L assignment
Address range: 4C:81:BE:00:00:00 – 4C:81:BE:FF:FF:FF
Addresses in block: 16,777,216
Country: US
Organization address: 445 Hoes Lane Piscataway NJ US 08554
First registered: 1 Oct 2026

Formats

Plain hex 4C81BE
Colon-separated 4C:81:BE
Hyphen-separated 4C-81-BE
Cisco dot notation 4C81.BE

One of IEEE Registration Authority's 439 registered blocks; together they span 7.3 billion.

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Adjacent prefixes

Registered the same year