CYG CONTRON CO.LTD
MA-S
MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:A8:C0:00 /36
Vendor addressBUILDING A.NO.11 OF THE 6TH TECHNOGY ROAD,PHASE III OF TECNOLOGY INNOVATION COAST,ZHUHAI NATIONAL HI-TECH INDUSTRIES DEVELOPMENT ZONE Zhuhai CN 519000
Country🇨🇳 China
Block range70:B3:D5:A8:C0:00– 70:B3:D5:A8:CF:FF
Address capacity4,096
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