Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: SNRSAZXCRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
520-362 A West San Simon AZ 2173 TOHONO O'ODHAM UTILITY AUTHORITY 668      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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