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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Switch: FNDLWAXADS1

Remotes:

Switch Switch name Switch type
CSTRWAXARS0  CUSTER  RSS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
360-312 A Whatcom County WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-380 A Whatcom County WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-383 A Whatcom County WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-384 A Whatcom County WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-617 A Whatcom County WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      

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

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