APRS messages are stored for 14 days. It is possible to search using wildcards (*?) after a prefix.
2024-05-06 21:17:07 EDT: KD4CHW-3>NX1Q-3: howdy 2024-05-06 21:17:25 EDT: KD4CHW-3>NX1Q-3: i have a radio or two on 2024-05-06 21:17:37 EDT: KD4CHW-3>NX1Q-3: you probably aren't getting these haha