MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix78:05:41:00:00:00 /24
Vendor addressRoom 501, Building 9, No.99 Tianzhou Road shanghai shanghai CN 200233
RegisteredJun 6, 2015
Block range78:05:41:00:00:00– 78:05:41: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 6, 2015 – Jun 21, 2026 Queclink Wireless Solutions Co., Ltd name changed
  2. Jun 21, 2026 – present Queclink Wireless Solutions Co., Ltd.

Example addresses in this block

Where this block sits

Queclink Wireless Solutions Co., Ltd. holds 2 registered blocks in the IEEE registry, ranking #2,814 of 33,427 organizations by block count.

Other blocks registered to Queclink Wireless Solutions Co., Ltd.