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MAC prefix 00:01:99

Assigned by the IEEE to HeiSei Electronics.

Prefix
00:01:99   00-01-99   0001.99
Block type
MA-L (16,777,216 addresses)
Address range
00:01:99:00:00:00 – 00:01:99:FF:FF:FF
Organization
HeiSei Electronics
Registered address
5/7 Alley 8, Lane 45, TAIWAN, TW
Country
Taiwan (TW)
Address bits
Unicast (I/G bit 0), globally unique (U/L bit 0)

Look up 00:01:99:00:00:00

HeiSei Electronics holds 1 block in total: see all. Source: IEEE Registration Authority public listing.