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: CHYNWY07LMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-221 4 Cheyenne WY 5562 METROPCS, INC. 654      
307-221 7 Cheyenne WY 5562 METROPCS, INC. 654      
307-225 8 Laramie WY 5562 METROPCS, INC. 654   2021-05-14   
307-243 7 Casper WY 5562 METROPCS, INC. 654   2021-05-16   
307-256 A Cheyenne WY 5562 METROPCS, INC. 654      
307-256 5 Cheyenne WY 5562 METROPCS, INC. 654   2021-09-19   
307-284 6 Jackson WY 5562 METROPCS, INC. 654   2021-05-14   
307-310 1 Cheyenne WY 5562 METROPCS, INC. 654   2021-09-19   
307-394 0 Casper WY 5562 METROPCS, INC. 654   2021-11-11   
307-433 7 Cheyenne WY 5562 METROPCS, INC. 654   2019-03-11   
307-441 2 Casper WY 5562 METROPCS, INC. 654   2021-12-14   
307-633 1 Cheyenne WY 5562 METROPCS, INC. 654   2019-04-11   
307-776 1 Casper WY 5562 METROPCS, INC. 654   2021-05-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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