MAC Address Lookup


Single Digits

MAC prefix: 3A:F5:21

Vendor name: Single Digits

MAC range: 3A:F5:21:00:00:00 - 3A:F5:21:FF:FF:FF

Block Size: 16777215 (16.77 M)


4 Bedford Farms Drive
Suite 210
Bedford NH 03110

Type CID

Company Identifier. This prefix will not be used for globally unique applications. Number of address 2^24 (~16 Million)


This MAC can be transmitted when a device is not associated with an access point. In this case, it can be considered randomized.

Initial registration: 13 January 2019

Last updated: 25 June 2020

Country US map