What is a MA-L, MA-M, MA-S assignment? | FAQ | MAC Address Vendor Lookup
Frequently asked questions

What is a MA-L, MA-M, MA-S assignment?

There are currently 3 different size blocks of MAC Addresses available. All three could be used to generate universally administered MAC‌-48 and MAC‌-64.

Name Full name Previously named Number of Addresses
MA-L MAC Address Block Large OUI (Organizationally Unique Identifier) 224 ~= 16 Million
MA-M MAC Address Block Medium - 220 ~= 1 Million
MA-S MAC Address Block Small OUI-36 (encompasses IAB Assignments) 212 ~= 4,096
What is a MA-L, MA-M, MA-S assignment?


Manifest Data – Making your data reliable

Don’t be caught off guard by broken pipelines, poor code, or user interactions that corrupt your data. Install Manifest Data, and you will know about issues before anyone. You can fix data problems silently before the business or customers are affected. Then get some rest!

Learn More

Trusted by the following companies

Flex.com webafrica.co.za wework.com guarddog.ai cybercns.com

and many more...

Download an exhaustive MAC Address Vendor Database for your educational, business or enterprise needs.

Our database comes in the following forms: JSON, CSV, XML, Cisco vendorMacs.xml for maximum compatibility and fast integration into existing systems.

Order database
The data was just refreshed