Caller ID is "4807390917".  The standard default format is (xxx) xxx xxxx, so they have attempted to look vanilla, but have failed.  They leave no message.

I call back after hours (using *67 to block my number).  I hear the following, "Calls may be monitored or recorded to provide you with a quality experience.  Thank you for calling Alliance Defending Freedom.  Alliance Defending Freedom advocates for the right of people to freely live out their faith.  As an alliance building legal organization we unite attorneys, ministry leaders, pastors, and like-minded organizations in a common purpose, a shared committment to defending religious liberties, the sanctity of life and marriage and faith.  If you'd like to make a donation or receive additional information about Alliance Defending Freedom, please, press 1 now.  If you'd like to request a reduction in contacts, please, press 2 now.  If you'd like to contact Alliance Defending Freedom, please, press 3 now."   I do not select any of the options.

I can't say I appreciate them spoofing their caller ID.