A base station operative in a Citizens Broadband Radio Service (CBRS) band controlled according to a shared access system (SAS) may be configured for automated neighbor frequency provisioning. The base station may maintain an active neighbor list of small cell frequencies of active neighboring small cells, which is created or updated by performing a scanning operation and adding small cell frequencies of scanned neighboring small cells to the active neighbor list. The base station may receive, from an active neighboring base station having a connection established therewith, one or more messages including a neighbor list of small cell frequencies of neighboring small cells that neighbor the active neighboring small cell. At least some of the neighboring small cells of the active neighboring small cell may be added to the active neighbor list of the base station based on signal strength of user equipment (UE) measurements.