A partial list of MAS Centers around the US:
MAS Center Dallas https://masdfw.org/
MAS Center Staten Island https://massic.org/
MAS Youth Center New York https://www.facebook.com/MAS.Youth.Center/
MAS YCC Elk Grove CA https://massacramento.org/mcyc/
MAS Katy Center https://www.maskaty.org/
MAS National https://muslimamericansociety.org/