Acro Telecom MAC prefix: vendor identified, device unknown

A MAC address beginning 00:14:EC matches the IEEE MA-L assignment to Acro Telecom; the record does not identify a device type. An exact prefix match establishes that the first 24 bits match the registered prefix, not which product or device made the address.

This prefix has 24 bits remaining in a 48-bit MAC address, allowing 16,777,216 possible suffix values. That is a range of possible address values, not a count of devices or shipments. The first octet is 00: its Group bit and Local bit are both zero, indicating an individual, globally assigned address form. Changing either bit changes the prefix and no longer gives an exact match to 00:14:EC.

The available IEEE MA-L record names Acro Telecom and gives an address in Seoul, South Korea; it does not establish present-day identity, products, or deployment. RFC 7042 explains that MAC identifiers use an initial assigned prefix followed by additional bits, and describes the Group and Local bits. The assignment dates are unavailable in the cited IEEE CSV records.

Device type

Unknown; the registry record does not specify a device category [Unknown] — https://standards-oui.ieee.org/oui/oui.csv

Prefix match

00:14:EC is an exact 24-bit MA-L prefix; 24 suffix bits permit 16,777,216 possible values [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Bit interpretation

For this literal prefix, Group bit = 0 and Local bit = 0; changing either bit yields a different prefix [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt

Vendor

Acro Telecom [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Device type

Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv

Country

South Korea [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

Registry

MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv

IEEE assignment dates

Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv