2-1-1 is a free, confidential information and referral service that connects people to essential health and human services 24 hours a day, seven days a week online and over the phone. 2-1-1 is fully certified in crisis intervention by the American Association of Suicidology and is certified by The Alliance of Information and Referral Systems (AIRS). AIRS is the professional association for over 1,200 community Information and Referral (I&R) providers.