macadress

Instituto Nacional de Tecnología Industrial

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix78:EB:39:00:00:00 /24
Vendor addressAv. Gral. Paz 5445 San Martín Buenos Aires AR 1650
Country🇦🇷  Argentina
RegisteredApr 8, 2015
Block range78:EB:39:00:00:00– 78:EB:39: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. Apr 8, 2015 – Aug 27, 2015 Instituto Nacional de Tecnología Industrial name changedaddress changed
  2. Aug 27, 2015 – present Instituto Nacional de Tecnología Industrial

Example addresses in this block

78:EB:39:00:00:00 78:EB:39:7F:FF:FF 78:EB:39:FF:FF:FF

Where this block sits

Instituto Nacional de Tecnología Industrial holds 1 registered blocks in the IEEE registry, ranking #16,247 of 33,427 organizations by block count.