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: KRLDWADWDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-336 A Seattle WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
206-802 A Seattle WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
206-926 A Seattle WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
253-398 A Kent WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
253-439 A Tacoma WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
253-733 A Des Moines WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
425-354 A Bothell WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
425-372 A Bellevue WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
425-412 A Halls Lake WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      
425-636 A Kirkland WA 7274 MCI WORLDCOM COMMUNICATIONS, INC. - WA 674      

Last updated: Sun, 31 May 2020 11:59:01 UTC

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