MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:25:FC:00:00:00 /24
Vendor addressY. Dudullu Barbaros C. Kutup S. No. 20 Istanbul TR 34775
Country🇹🇷 Turkey
RegisteredApr 26, 2009
Block range00:25:FC:00:00:00– 00:25:FC: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 →
Ownership timeline
- Apr 26, 2009 – Dec 29, 2023 ENDA ENDUSTRIYEL ELEKTRONIK LTD. STI. name changed
- Dec 29, 2023 – present ENDA
Example addresses in this block
Where this block sits
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00:25:FB:00:00:00 /24
Tunstall Healthcare A/S
Next
00:25:FD:00:00:00 /24
OBR Centrum Techniki Morskiej S.A.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ENDA holds 1 registered blocks in the IEEE registry, ranking #11,769 of 33,421 organizations by block count.