Serra Mesa September 16, 2023 8:48 pm Serra Mesa celebrates ‘once-in-a-lifetime' event for 92123 Day 92123 is the zip code for Serra Mesa. Neighbors came together to celebrate ahead of 92123 Day, when the zip code and date match. NBC 7’s Dana Williams has the story. US & World Videos 2:51 Dozens of businesses being evicted in Otay Mesa 0:34 Mountain lion hit by car returns to wild after recovering at Ramona Wildlife Center 1:02 Brush fire burns in East County near Alpine 10:07 Encinitas sand replenishment project complete | San Diego News Daily 3:07 Vigil held at Las Colinas for mothers who are in jail