Is it legitimate to get a phone call to do an interview on the phone for a security clearance?

Was an NBIB investigator prior for 3 years. There were recent changes where some items on cases can be interviewed by phone to expidite the case if there were no major issues. You can always request the investigator or agents badge number and name and call into NBIB to verify. Number should be available online on the NBIB website. It’s honestly quite common for people to think it’s a scam or fake as it’s not a common thing to go through.

This is legit and it is a common practice - especially considering the backlog with security clearances and the lack of investigators to close out the background investigation process. I enlisted in the early 90's and commissioned in 99, and my last BI was in 2017 - and I have held Secret, TS, Q, TS-SCI clearances with various agencies and departments. In all that time, I would say I had 4 that were conducted over the telephone. If there is anything that needs to be clarified, they will usually do it in person, but a phone call is certainly legit.

I met with an investigator that contacted me the same way. He already had my information when we met and was familiar with what my clearance was for. These calls are indeed legitimate. They were contracted through a company called Perspecta here in NC. He gave me some advice on the army since he was prior service himself.