APRS messages are stored for 14 days. It is possible to search using wildcards (*?) after a prefix.
2024-05-08 09:06:38 EDT: KO4NFP-7>KX4DRT-9: Hello Randy just testing out APRS messaging 73 2024-05-08 09:07:41 EDT: KO4NFP-7>KX4DRT-9: Hello Randy just testing out APRS messaging 73