North Middlesex Savings Bank ← View details 7 Main Street, Ayer, MA 01432 +1 978-772-3306 nmsb.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 04:00 pm Tuesday: 09:00 am — 04:00 pm Wednesday: 09:00 am — 04:00 pm Thursday: 09:00 am — 04:00 pm Friday: 09:00 am — 06:00 pm Saturday: 09:00 am — 12:00 pm Your comments * — Required information