Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Burbank: Burbank DA, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
818-973 A BRBNCA11DS0  9740 PACIFIC BELL 730      
818-977 A IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      

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Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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