Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 484 [Rate centres in NPA 484] [Dial plan for NPA 484]

NXX: 433

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
484-433 A Philadelphia Suburban Zone 23 PA PHLAPAMK33Z  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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