No answer at Oakland FSS?

Before this evening's flight, I decided to give the Oakland FSS a call
to check for TFRs. So I dialed 1-800-WXBRIEF and got connected to the
Bridgeport FSS (presumably since my cell phone has a 617 area code
associated with it). The Bridgeport briefer was not able to tell me
about TFRs in California, but gave me the direct dial number for
Oakland: 866-469-7828.

Dialing that number doesn't work. It rings for a while, then it
answers with a background buzzing noise and silence. I have tried
calling from multiple phones, with the same effect.

Does anyone know what is up? Did their phone number change with the
Lockheed Martin transition, and they forgot to tell anyone?

Is there another reasonable way to check for last-minute TFRs before
flying? Should I just give them a call on the radio once I am already
flying, and waste the airtime having them tell me about TFRs over the
radio?

Chris