macadress

Shenzhen Chuangyou Acoustic Technology Co., Ltd.

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.
PrefixD4:BA:BA:90:00:00 /28
Vendor addressRoom 1205, Office Building, No. 4, Chongwen Garden, No. 1, Tangling Road, Fuguang Community, Taoyuan Street, Nanshan District Shenzhen Guangdong CN 518000
Country🇨🇳  China
RegisteredJul 15, 2022
Block rangeD4:BA:BA:90:00:00– D4:BA:BA:9F: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. Jul 15, 2022 – Jul 20, 2022 thingdust AG name changedaddress changedcountry changed
  2. Jul 20, 2022 – present Shenzhen Chuangyou Acoustic Technology Co., Ltd.

Example addresses in this block

D4:BA:BA:90:00:00 D4:BA:BA:97:FF:FF D4:BA:BA:9F:FF:FF

Where this block sits

Previous D4:BA:BA:80:00:00 /28 Chengdu Ba SAN SI YI Information Technology Co., LTD Next D4:BA:BA:A0:00:00 /28 Actiontec Electronics Inc.

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

Shenzhen Chuangyou Acoustic Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,288 of 33,421 organizations by block count.