Got a call from this number (at least that's what my caller ID said, along with "Unknown name") on a Saturday afternoon at 12:30pm. Silence except for faint voices in the background. Whitepages.com reverse look-up says it's registered to Helene J Montgomery (Age 65+), Greencroft Ln, Cockeysville, MD. There was a burglary in our otherwise very safe neighborhood just a few days ago (probably unrelated).