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: HRBGPACTDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
223-200 A York PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
223-201 A Biglerville PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
223-400 A Hanover (York) PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
223-800 A Harrisburg City Zone-1 PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
223-837 A East Waterford PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
223-924 A Fairfield (Adams) PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
570-652 A Tremont PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
570-653 A Valley View (Schuyikill) PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-212 A Lewisberry PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-219 A Shellsville PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-275 A New Bloomfield PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-281 A East Waterford PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-282 A Port Royal PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-400 A York Springs PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-402 A Belleville PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-403 A Allensville PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-408 A Fairfield (Adams) PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-452 A Mercersburg PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-493 A Dry Run PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-523 A Tower City PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-539 A McAlisterville PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-557 A Harrisburg City Zone-1 PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-631 A Richfield PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-745 A Harrisburg City Zone-2 PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-748 A St Thomas PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-784 A Millerstown (Perry) PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-785 A Blue Ridge Summit PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-888 A Harrisburg City Zone-1 PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-895 A Greencastle PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-905 A Elizabethville PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-922 A Thompsontown PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
717-946 A Reedsville (Mifflin) PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
814-214 A Orbisonia PA 3806 CORE COMMUNICATIONS, INC. - PA 226      
814-910 A Shade Gap PA 3806 CORE COMMUNICATIONS, INC. - PA 226      

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

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