ecobee — ~1 prefix (MA-L)

ecobee holds a single MA-L block registered as "ecobee inc" at 333 Adelaide St W, 6th Floor, Toronto, Ontario, Canada. The verified prefix is 44:61:32. These OUIs appear on smart thermostats (the SmartThermostat line), room/occupancy sensors, the ecobee SmartCamera, and smart-home sensors. ecobee was founded in 2007 in Toronto and was acquired by Generac Holdings (NYSE: GNRC); Generac announced the closing on 1 December 2021 (the transaction was valued up to ~$770M contingent on performance targets). For triage, an ecobee OUI on a residential or small-office network is a Wi-Fi thermostat, sensor, or camera — one of the three major US smart-thermostat brands alongside Google Nest and Honeywell/Resideo — and a shadow-IT signal on corporate networks.

IEEE assignment

~1 prefix → "ecobee inc", registered Toronto, Canada [Confirmed] — IEEE MA-L

Registry / block size

MA-L; 1 block [Confirmed] — maclookup.app (IEEE-sourced)

HQ / country

333 Adelaide St W, 6th Floor, Toronto, Ontario M5V 1R5, Canada [Confirmed] — IEEE MA-L

Company status

active; founded 2007; acquired by Generac Holdings (NYSE: GNRC), closing announced 2021-12-01 [Confirmed] — ecobee.com, sec.gov, techcrunch.com

Device types

smart thermostats (SmartThermostat), room/occupancy sensors, SmartCamera, smart-home sensors [Confirmed] — maclookup.app

Notable products

ecobee SmartThermostat, SmartSensor, SmartCamera

Verified prefix

44:61:32 (ecobee inc) [Confirmed] — maclookup.app

Special note

Single OUI block; ecobee devices are common Wi-Fi smart-home endpoints. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]

Related vendors

parent Generac Holdings

Analyst note

An ecobee OUI = a Wi-Fi thermostat, sensor, or camera (one of the three major US smart-thermostat brands with Google Nest and Honeywell/Resideo); a shadow-IT signal on corporate networks.