312-400

You are reviewing the Area Code (NPA/NXX) report for 312-400. Did you mean to search the SMS short code 312400?

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🇺🇸 DSN NORTHCOM Area Code Detected

The area code you entered, 312, overlaps with the DSN network for the Continental United States and Puerto Rico under Northern Command (NORTHCOM), though it could also be part of standard civilian phone numbers.

Raw Number	312400
Basic Format	312-400
NPA (Area Code)	312
NXX	400

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	City	State
312-400-XXXX	9748	AMERICAN MESSAGING SERVICES, LLC	CHICGOZN01	AS	04/13/2001	CHICAGO ZONE 1	IL

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