MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix50:33:F0:00:00:00 /24
Vendor address23F, Building C1, Nanshan iPark, No. 1001 Xueyuan Road, Nanshan District, Shenzhen City, Guangdong, China shenzhen CN 518044
RegisteredJun 16, 2017
Block range50:33:F0:00:00:00– 50:33:F0: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.

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Ownership timeline

  1. Jun 16, 2017 – Jun 17, 2017 SHENZHEN YICHEN (JCG)TECHNOLOGY DEVELOPMENT CO.,LTD name changedaddress changed
  2. Jun 17, 2017 – present YICHEN (SHENZHEN) TECHNOLOGY CO.LTD

Example addresses in this block

Where this block sits

YICHEN (SHENZHEN) TECHNOLOGY CO.,LTD holds 2 registered blocks in the IEEE registry, ranking #3,469 of 33,427 organizations by block count.