Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CASTLAMARS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
318-544 A Castor LA 9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 486      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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