Every year on Feb. 11, United Way organizations in Massachusetts and across the country celebrate 2-1-1 Day to raise awareness of this important public service. Everyone knows the three-digit number to call in an emergency, but some Bay Staters may not be aware of the simple number they can dial for health and human-service assistance. Mass2-1-1 provides telephone and web information and referral service for residents of the Commonwealth 24/7/365. Trained 2-1-1 information and referral specialists connect callers to thousands of human-service organizations, including providers for food programs, housing and emergency shelter, elder care, physical and mental-health services, childcare resources, drug and alcohol services, utility assistance, and victim services. It is also activated when needed for emergencies and disasters.