In the US, 911 calls are automatically routed to nearest PSAP [0] which has a real number. In the event a user originated 911 call gets disconnected, the number

In the US, 911 calls are automatically routed to nearest PSAP [0] which has a real number. In the event a user originated 911 call gets disconnected, the number 911 agent calls you from will be a local number. For this reason phones and networks cannot block incoming calls. https://en.m.wikipedia.org/wiki/Public_safety_answering_point https://en.m.wikipedia.org/wiki/Public_safety_answering_poin...