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: MILWWI45XBX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
920-753 6 Mount Calvary WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-05   
920-754 7 Reedsville WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-05   
920-762 7 Kiel WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-05   
920-772 7 Collins WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2017-10-25   
920-776 7 Tisch Mills WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2017-10-25   
920-781 7 Elkhart Lake WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-02   
920-786 6 Horicon WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2014-12-06   
920-798 7 Lebanon WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2014-12-31   
920-827 7 New Holstein WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-05   
920-828 7 Howards Grove WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2017-10-25   
920-871 7 Hilbert WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-02   
920-927 8 Reeseville WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2017-10-25   
920-953 7 Valders WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2017-10-25   
920-999 7 St Cloud WI 508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-05   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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