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.

Salt Lake City, UT

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
385-602 0 SLKCUTMAXHY  624H ONVOY SPECTRUM, LLC 660   2017-08-31   
385-602 1 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2018-01-22   
385-602 2 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2017-10-31   
385-602 3 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2017-12-18   
385-602 4 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2017-12-18   
385-602 5 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2017-11-13   
385-602 6 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2017-10-31   
385-602 7 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2017-12-18   
385-602 8 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2018-01-22   
385-602 9 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2018-02-26   
385-603 A   871E ONVOY, LLC - UT 660   2025-05-30   
385-603 0   871E ONVOY, LLC - UT 660   2025-05-30   
385-603 1   871E ONVOY, LLC - UT 660   2025-05-30   
385-603 2   871E ONVOY, LLC - UT 660   2025-05-30   
385-603 3   871E ONVOY, LLC - UT 660   2025-05-30   
385-603 4   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-02   
385-603 5   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-02   
385-603 6   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-02   
385-603 7   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-02   
385-603 8   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-02   
385-603 9   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-02   
385-605 A   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 0   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 1   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 2   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 3   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 4   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 5   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 6   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 7   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 8   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-605 9   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-06-14   
385-606 A   117F BANDWIDTH.COM CLEC, LLC - UT 660   2025-07-18   
385-606 0   117F BANDWIDTH.COM CLEC, LLC - UT 660   2025-07-18   
385-606 1   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-09-05   
385-606 2   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-09-05   
385-606 3   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-09-05   
385-606 4   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-09-05   
385-606 5   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-09-05   
385-606 6   321J HD CARRIER LLC 660   2025-08-10   
385-606 7   321J HD CARRIER LLC 660   2025-08-10   
385-606 8   7530 TELEPORT COMMUNICATIONS AMERICA, LLC - UT 660   2025-08-11   
385-606 9   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-09-05   
385-609 A   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 2   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 3   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 4   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 5   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 6   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 7   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 8   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-609 9   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-10-03   
385-622 A SLKCUT26EMD  490J DISH WIRELESS, LLC 660      
385-622 0 SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660   2022-09-25   
385-622 1 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2022-11-16   
385-622 2 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2022-11-16   
385-622 3 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2022-12-20   
385-622 4 SLKCUTMAX9Y  508J CENTURYLINK COMMUNICATIONS, LLC 660   2022-11-27   
385-622 5 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2022-12-27   
385-622 6 SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2023-01-02   
385-622 7 SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2023-01-22   
385-622 8 WVCYUT145MD  073H TELNYX LLC 660   2023-01-22   
385-622 9 SLKCUT26EMD  490J DISH WIRELESS, LLC 660   2022-02-11   
385-628 A DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660      
385-628 0 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2011-01-11   
385-628 1 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2011-01-11   
385-628 2 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2011-01-11   
385-628 3 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2011-01-11   
385-628 4 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2011-01-11   
385-628 5 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2011-01-11   
385-628 6 SLKDUTBTPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 660   2011-01-11   
385-628 7 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2011-01-11   
385-628 8 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2011-01-11   
385-628 9 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2011-01-09   
385-630 A SLKCUTMAX7Y  156J RCLEC, INC. 660      
385-630 0 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2016-02-20   
385-630 1 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2016-02-20   
385-630 2 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2016-02-20   
385-630 3 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2016-02-20   
385-630 4   871E ONVOY, LLC - UT 660   2016-02-07   
385-630 5 DRPRUTKJ0MD  6529 T-MOBILE USA, INC. 660   2016-02-20   
385-630 6 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2016-04-14   
385-630 7 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2016-04-14   
385-630 8 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2016-04-14   
385-630 9 SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2016-04-14   
385-646 A SLKCUTSODS0  9636 QWEST CORPORATION 660      
385-646 0   9636 QWEST CORPORATION 660   2009-05-17   
385-646 1   9636 QWEST CORPORATION 660   2009-05-17   
385-646 2   9636 QWEST CORPORATION 660   2009-05-17   
385-646 3   9636 QWEST CORPORATION 660   2009-05-17   
385-646 4   9636 QWEST CORPORATION 660   2009-05-17   
385-646 5   9636 QWEST CORPORATION 660   2009-05-17   
385-646 6   9636 QWEST CORPORATION 660   2009-05-17   
385-646 7   9636 QWEST CORPORATION 660   2009-05-17   
385-646 8   9636 QWEST CORPORATION 660   2009-05-17   
385-646 9   9636 QWEST CORPORATION 660   2009-05-17   
385-699 A SLKCUT26BMD  965H FRACTEL, LLC 660      
385-699 0 SLKCUTMAXHY  624H ONVOY SPECTRUM, LLC 660   2021-11-06   
385-699 1 SLKCUTMAXHY  624H ONVOY SPECTRUM, LLC 660   2021-11-06   
385-699 2 SLKCUTMAXHY  624H ONVOY SPECTRUM, LLC 660   2021-11-06   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.