do you need service to call 911

[VonElias]

Even without active service, any wireless phone can call 911, according to sources including 911.gov, City of Roseville, and CNET. If the call gets disconnected, however, the 911 center won’t be able to reach you back because they won’t have your phone number or location, as highlighted by 911.gov and authorities in Rancho Santa Margarita, CA.