Tools for Humanity Corporation

MAC address prefix A4:61:85 is registered to Tools for Humanity Corporation, located at 650 7th StSan Francisco CA 94103US.

This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses

The prefix was registered on 19 September 2025, and no subsequent updates have been recorded.

OUI: A4:61:85

Vendor name: Tools for Humanity Corporation

Address:

650 7th St
San Francisco CA 94103
US.

Assignment Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Initial registration: 19 September 2025

MAC Address Vendor Country US map