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.

NPA: 801 [Rate centres in NPA 801] [Dial plan for NPA 801]

NXX: 528

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
801-528 A Ogden UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
801-528 0 Ogden UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      
801-528 1 Ogden UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
801-528 2 Ogden UT SLKCUTJCGT1  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
801-528 3 Ogden UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
801-528 4 Ogden UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
801-528 5 Ogden UT SLKEUT45DS0  5727 FIRSTDIGITAL TELECOM, LLC - UT 660      
801-528 6 Ogden UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
801-528 7 Ogden UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
801-528 8 Ogden UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
801-528 9 Ogden UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.