MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix1C:A7:70:00:00:00 /24
Vendor addressUnit A 13-16/F,Skyworth Bldg., Gaoxin Ave.1.S.,Nanshan District ShenZhen GuangDong CN 518057
Country🇨🇳 China
RegisteredJun 7, 2013
Block range1C:A7:70:00:00:00– 1C:A7:70: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
- Jun 7, 2013 – Oct 10, 2015 SHENZHEN CHUANGWEI-RGB ELECTRONICS CO.,LT name changedaddress changed
- Oct 10, 2015 – present SHENZHEN CHUANGWEI-RGB ELECTRONICS CO.,LTD
Dates show when a change became public in the IEEE registry. How we track ownership history →
Example addresses in this block
Where this block sits
SHENZHEN CHUANGWEI-RGB ELECTRONICS CO.,LTD holds 21 registered blocks in the IEEE registry, ranking #171 of 33,498 organizations by block count.
Other blocks registered to SHENZHEN CHUANGWEI-RGB ELECTRONICS CO.,LTD
08:28:02:00:00:00 /24
MA-L
08:54:BB:00:00:00 /24
MA-L
10:77:17:00:00:00 /24
MA-L
28:35:45:00:00:00 /24
MA-L
28:B4:46:00:00:00 /24
MA-L
3C:4E:56:00:00:00 /24
MA-L
60:42:7F:00:00:00 /24
MA-L
94:90:34:00:00:00 /24
MA-L
A4:E6:15:00:00:00 /24
MA-L
A8:77:E5:00:00:00 /24
MA-L
AC:17:94:00:00:00 /24
MA-L
B0:1C:0C:00:00:00 /24
MA-L