macadress

BT&COM CO.,LTD

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixB8:B1:C7:00:00:00 /24
Vendor address#1103, E&C Venture Dream Tower II Seoul KR 152-719
Country🇰🇷  South Korea
RegisteredOct 24, 2009
Block rangeB8:B1:C7:00:00:00– B8:B1:C7: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 24, 2009 – Oct 31, 2009 BT&COM CO.,LTD name changedaddress changed
  2. Oct 31, 2009 – present BT&COM CO.,LTD

Example addresses in this block

B8:B1:C7:00:00:00 B8:B1:C7:7F:FF:FF B8:B1:C7:FF:FF:FF

Where this block sits

BT&COM CO.,LTD holds 1 registered blocks in the IEEE registry, ranking #7,499 of 33,421 organizations by block count.