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MAC prefix B4:E1:EB

Assigned by the IEEE to Private.

Prefix
B4:E1:EB   B4-E1-EB   B4E1.EB
Block type
MA-L (16,777,216 addresses)
Address range
B4:E1:EB:00:00:00 – B4:E1:EB:FF:FF:FF
Organization
Private
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up B4:E1:EB:00:00:00

Private holds 88 blocks in total: see all. Source: IEEE Registration Authority public listing.