macadress

UNION MAN TECHNOLOGY CO.,LTD

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:19:F0:00:00:00 /24
Vendor address18F, HUAYANG TOWER,YANDAYI ROAD HUIZHOU GUANGDONG CN 516007
Country🇨🇳  China
RegisteredOct 16, 2006
Block range00:19:F0:00:00:00– 00:19: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.

Curious how a prefix like this turns into a full address? See how MAC addresses are structured →

Ownership timeline

  1. Oct 16, 2006 – Jan 13, 2023 UNIONMAN TECHNOLOGY CO.,LTD name changed
  2. Jan 13, 2023 – present UNION MAN TECHNOLOGY CO.,LTD

Example addresses in this block

00:19:F0:00:00:00 00:19:F0:7F:FF:FF 00:19:F0:FF:FF:FF

Where this block sits

Previous 00:19:EF:00:00:00 /24 SHENZHEN LINNKING ELECTRONICS CO.,LTD Next 00:19:F1:00:00:00 /24 Star Communication Network Technology Co.,Ltd

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

UNION MAN TECHNOLOGY CO.,LTD holds 13 registered blocks in the IEEE registry, ranking #247 of 33,427 organizations by block count.

Other blocks registered to UNION MAN TECHNOLOGY CO.,LTD

3C:0C:DB:00:00:00 /24 MA-L 40:F4:FD:00:00:00 /24 MA-L 48:CA:C6:00:00:00 /24 MA-L 54:72:5E:00:00:00 /24 MA-L 64:E0:AB:00:00:00 /24 MA-L 8C:BA:25:00:00:00 /24 MA-L A0:1C:87:00:00:00 /24 MA-L A8:BD:3A:00:00:00 /24 MA-L CC:62:FE:00:00:00 /24 MA-L D4:38:44:00:00:00 /24 MA-L F4:D9:C6:00:00:00 /24 MA-L F8:14:FE:00:00:00 /24 MA-L