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.

OCN: 2422 CENTURYTEL OF INTER-ISLAND, INC. DBA CENTURYLINK

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
360-317 A San Juan WA FRHRWAXADS1  674      
360-317 1 San Juan WA   674      
360-317 7 San Juan WA   674      
360-370 A San Juan WA FRHRWAXADS1  674      
360-370 0 San Juan WA   674      
360-370 5 San Juan WA   674      
360-370 7 San Juan WA   674      
360-375 A San Juan WA BLKIWAXXRS0  674      
360-375 6 San Juan WA   674      
360-376 A San Juan WA ESNDWAXARS0  674      
360-376 1 San Juan WA   674      
360-376 2 San Juan WA   674      
360-376 3 San Juan WA   674      
360-376 4 San Juan WA   674      
360-376 5 San Juan WA   674      
360-376 6 San Juan WA   674      
360-376 7 San Juan WA   674      
360-376 8 San Juan WA   674      
360-376 9 San Juan WA   674      
360-378 A San Juan WA FRHRWAXADS1  674      
360-468 A San Juan WA LOPZWAXXRS0  674      
360-468 2 San Juan WA   674      
360-468 3 San Juan WA   674      
360-468 4 San Juan WA   674      
360-468 6 San Juan WA   674      

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

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