312-309

You are reviewing the Area Code (NPA/NXX) report for 312-309. Did you mean to search the SMS short code 312309?

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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	312309
Basic Format	312-309
NPA (Area Code)	312
NXX	309

Call Routing Data

NPA-NXX-X	OCN	Company	Rate Center	Use Type	Assign Date	City	State
312-309-XXXX	9329	ILLINOIS BELL TEL CO	CHICGOZN01	AS		CHICAGO ZONE 1	IL

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