Sample GIS Server and GIS Services. Open311. 3-1-1. The telephone number 3-1-1 is a special telephone number supported in many communities in Canada and the United States which provides access to non-emergency municipal services.
The number format follows the N11 code for a group of short, special-purpose local numbers. The number 3-1-1 is intended in part to divert routine inquiries and non-urgent community concerns from the 9-1-1 number which is reserved for emergency service only. Nj_statewide_311.