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: GNBYWIEMCM2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
920-370 3 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2010-05-20   
920-370 5 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2010-05-20   
920-370 6 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2010-05-20   
920-388 9 Kewaunee WI 5564 WISCONSIN RSA #10 LIMITED PARTNERSHIP 350   2012-07-19   
920-412 9 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2010-05-20   
920-445 4 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2010-05-20   
920-532 3 Wrightstown WI 6692 NEW CELL DBA CELLCOM 350   2017-04-28   
920-770 6 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2014-09-21   
920-770 7 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2014-09-21   
920-770 8 Green Bay WI 6692 NEW CELL DBA CELLCOM 350   2014-09-21   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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