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: PTLDMEFO00Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
207-275 5 Bangor ME 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 120      
207-464 A Westbrook ME 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 120      
207-464 3 Westbrook ME 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 120      
207-910 1 Portland ME 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 120   2023-07-11   
207-955 8 Lewiston ME 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 120   2026-03-25   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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