Disclosed herein is a method and corresponding system for dynamically updating a handover-scan-list maintained by a base station. In an example communication system comprising a first base station arranged to serve user equipment devices (UEs) on one or more carrier frequencies and a second base station arranged to maintain a handover-scan-list of carrier frequencies to which UEs served by the second base station can hand over, the first base station may process handover of a UE from being served by the first base station to being served by the second base station. During processing of the handover, the first base station may provide for receipt by the second base station a message indicating at least one carrier frequency on which the first base station is operating. In response to receiving the message, the second base station may then update the handover-scan-list to include the at least one carrier frequency.
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