Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 206 [Rate centres in NPA 206] [Dial plan for NPA 206]

NXX: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-538 A Seattle WA STTLWA03X7X  829J PAETEC ITEL, LLC 674      
206-538 0 Seattle WA   937F ASTOUND BROADBAND, LLC - WA 674   2011-12-22   
206-538 1 Seattle WA   6529 T-MOBILE USA, INC. 674   2011-12-14   
206-538 2 Seattle WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2011-11-29   
206-538 3 Seattle WA   6529 T-MOBILE USA, INC. 674   2011-12-14   
206-538 4 Seattle WA   6529 T-MOBILE USA, INC. 674   2011-12-14   
206-538 5 Seattle WA   829J PAETEC ITEL, LLC 674   2011-11-27   
206-538 6 Seattle WA   483E ONVOY, LLC - WA 674   2011-12-05   
206-538 7 Seattle WA   6529 T-MOBILE USA, INC. 674   2011-11-29   
206-538 8 Seattle WA   6529 T-MOBILE USA, INC. 674   2011-11-29   
206-538 9 Seattle WA   6529 T-MOBILE USA, INC. 674   2011-11-29   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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