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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: BYMNPRCOCM2

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
939-777 A Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820      
939-777 0 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 1 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 2 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 3 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 4 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 5 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 6 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 7 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 8 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   
939-777 9 Bayamón Norte PR 4823 PUERTO RICO TELCO DBA CLARO PUERTO RICO 820   2009-07-26   

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

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