macadress

Smart Access Designs, LLC

MA-M
MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixF4:97:9D:80:00:00 /28
Vendor address58 Mackenzie Willow Ter Cheshire CT US 06410
Country🇺🇸  United States
RegisteredAug 6, 2025
Block rangeF4:97:9D:80:00:00– F4:97:9D:8F:FF:FF
Address capacity1,048,576
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

  1. Aug 6, 2025 – Sep 3, 2025 Shanghai Kanghai Infomation System CO.,LTD name changedaddress changedcountry changed
  2. Sep 3, 2025 – present Smart Access Designs, LLC

Example addresses in this block

F4:97:9D:80:00:00 F4:97:9D:87:FF:FF F4:97:9D:8F:FF:FF

Where this block sits

Previous F4:97:9D:70:00:00 /28 LUXSHARE - ICT(NGHE AN) LIMITED Next F4:97:9D:90:00:00 /28 Beijing Jiaxin Technology Co., Ltd

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

Smart Access Designs, LLC holds 1 registered blocks in the IEEE registry, ranking #27,677 of 33,421 organizations by block count.