Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-436 A Bellevue WA STTLWA060MD  6529 T-MOBILE USA, INC. 674      
425-436 0 Bellevue WA   6529 T-MOBILE USA, INC. 674   2019-06-24   
425-436 1 Bellevue WA   6529 T-MOBILE USA, INC. 674   2019-11-10   
425-436 2 Bellevue WA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2019-06-24   
425-436 3 Bellevue WA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2019-06-24   
425-436 4 Bellevue WA   6529 T-MOBILE USA, INC. 674   2019-11-10   
425-436 5 Bellevue WA   318J COMCAST IP PHONE, LLC 674   2019-07-04   
425-436 6 Bellevue WA   321J HD CARRIER LLC 674   2019-09-06   
425-436 7 Bellevue WA   6529 T-MOBILE USA, INC. 674   2019-11-10   
425-436 8 Bellevue WA   6529 T-MOBILE USA, INC. 674   2019-06-23   
425-436 9 Bellevue WA   6529 T-MOBILE USA, INC. 674   2019-06-23   

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

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