MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixCC:81:DA:00:00:00 /24
Vendor address3666 SiXian Rd.,Songjiang District Shanghai Shanghai CN 201616
Country🇨🇳 China
RegisteredAug 5, 2016
Block rangeCC:81:DA:00:00:00– CC:81:DA: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
- Aug 5, 2016 – Aug 31, 2017 SHANGHAI PHICOMM COMMUNICATION CO.,LTD name changed
- Aug 31, 2017 – present Phicomm (Shanghai) Co., Ltd.
Example addresses in this block
Where this block sits
Phicomm (Shanghai) Co., Ltd. holds 7 registered blocks in the IEEE registry, ranking #442 of 33,427 organizations by block count.
Other blocks registered to Phicomm (Shanghai) Co., Ltd.