On July 16, 2022, 988 will become the nationwide 3-digit dialing code for crisis and suicide prevention. It will replace the 1-800 number currently used by the National Suicide Prevention Lifeline. On this date, when someone calls 988 all phones in the U.S. (mobile and landline) will connect with the crisis/suicide prevention system.
This will allow anyone in the U.S. to call 988 and get help designed specifically for someone dealing with a mental health crisis.
This YouTube Video Explains the 988 help line which will be available 24 hours per day.