Who called from 2406962120

Called 2/26/16 at 4:17 PM and no VM was left. Since no VM was left, the call wasnt important to begin with.

Caller company: Hyattsville MD 240-696-2120
Call type: Nuisance call

Another unwanted call from "Hyattsville MD 240-696-2120" on 3/19/2016 at 12 noon and as usual, no VM was left. Since no VM was left, the call wasn't important to begin with.
Caller Company: Hyattsville MD 240-696-2120
Call type: Nuisance call

Caller ID showed: Hyattsville MD; no idea what it's about

I received a call from this number today. Also no message. Googling the phone number turns up a link to the Donna Edwards Campaign for Senate with has the following info:
Montgomery County
Silver Spring
918 Silver Spring Ave Silver Spring, MD 20910
Contact: Augusta Christensen, 240-696-2120, [email protected]

Another unwanted call from Hyattsville MD 240-696-2120 on April 6th 2016 at 12:30 PM and as usual, no VM was left. Since no VM was left, the call wasn't important to begin with.
After looking this number up, it shows that this is from some campaign for
"Donna Edwards for Senate
Caller Company: Hyattsville MD 240-696-2120
Call type: Annoying call