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: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

<< 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 28 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-461 1 Sheridan WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2005-10-31   
307-461 2 Sheridan WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2006-08-11   
307-461 3 Sheridan WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2009-11-27   
307-461 4 Sheridan WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-461 5 Sheridan WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2010-06-04   
307-461 6 Sheridan WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2012-12-08   
307-461 7 Sheridan WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2007-02-19   
307-461 8 Sheridan WY CSPRWYDNIMD  495J STRATUS NETWORKS 654   2021-04-08   
307-461 9 Sheridan WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2008-11-29   
307-462 A Casper WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-462 0 Casper WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2005-02-14   
307-462 1 Casper WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2011-07-08   
307-462 2 Casper WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654   2006-06-09   
307-462 3 Casper WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2011-02-05   
307-462 4 Casper WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-462 5 Casper WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654   2012-11-02   
307-462 6 Casper WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2012-02-12   
307-462 7 Casper WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654   2018-09-10   
307-462 8 Casper WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2021-07-19   
307-462 9 Casper WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2015-12-06   
307-463 A Riverton WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-463 0 Riverton WY CSPRWYESPS1  009E BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER] 654   2009-06-07   
307-463 1 Riverton WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2015-03-12   
307-463 2 Riverton WY CSPRWYESPS1  009E BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER] 654   2005-12-17   
307-463 3 Riverton WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2023-08-12   
307-463 4 Riverton WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-463 5 Riverton WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-03-03   
307-463 6 Riverton WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2010-04-02   
307-463 7 Riverton WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2006-11-05   
307-463 8 Riverton WY CHYNWYRF1MD  073H TELNYX LLC 654   2017-04-07   
307-463 9 Riverton WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-464 A Wright WY WRGHWYMARS1  9636 QWEST CORPORATION 654      
307-464 0 Wright WY WRGHWYMARS1  9636 QWEST CORPORATION 654      
307-464 1 Wright WY WRGHWYMARS1  9636 QWEST CORPORATION 654      
307-464 2 Wright WY WRGHWYMARS1  9636 QWEST CORPORATION 654      
307-464 3 Wright WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2012-12-13   
307-464 4 Wright WY WRGHWYMARS1  9636 QWEST CORPORATION 654      
307-464 5 Wright WY WRGHWYMARS1  9636 QWEST CORPORATION 654      
307-464 6 Wright WY WRGHWYMARS1  9636 QWEST CORPORATION 654      
307-464 7 Wright WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2011-06-05   
307-464 8 Wright WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2012-12-13   
307-464 9 Wright WY CHYNWYRFDS0  581H AIRUS, INC. - WY 654   2018-11-10   
307-465 A Newcastle WY OSAGWYXCRS1  3410 RT COMMUNICATIONS 654      
307-466 A Green River WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654      
307-466 0 Green River WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2006-11-27   
307-466 1 Green River WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2012-12-17   
307-466 2 Green River WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2008-01-18   
307-466 3 Green River WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2008-06-12   
307-466 4 Green River WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2006-10-06   
307-466 6 Green River WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2010-09-09   
307-466 7 Green River WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2012-01-30   
307-466 8 Green River WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654   2012-06-01   
307-466 9 Green River WY CHYNWYRF1MD  073H TELNYX LLC 654   2019-03-01   
307-467 A Hulett WY HLTTWYXCRS1  3410 RT COMMUNICATIONS 654      
307-468 A Upton WY UPTNWYXCRS1  3410 RT COMMUNICATIONS 654      
307-469 A Hyattville WY BASNWYXCDS1  2296 TRI-COUNTY TEL. ASSN., INC. 654      
307-471 A Lusk WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-471 1 Lusk WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2025-01-19   
307-472 A Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 A Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 0 Casper WY   145J TERRA NOVA TELECOM INC. 654   2021-09-28   
307-473 1 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 2 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 3 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 4 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 5 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 6 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 7 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 8 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-473 9 Casper WY CSPRWYMADS0  9636 QWEST CORPORATION 654      
307-474 A Cody WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2025-02-02   
307-474 0 Cody WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2025-02-02   
307-474 1 Cody WY   450F ONVOY, LLC - WY 654   2025-04-11   
307-474 8 Cody WY   6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2025-04-28   
307-475 A Cheyenne WY CHYNWYRF1MD  073H TELNYX LLC 654      
307-475 1 Cheyenne WY CHYNWYRF1MD  073H TELNYX LLC 654   2017-02-11   
307-475 3 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2019-06-20   
307-475 6 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2020-12-19   
307-475 7 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2020-12-19   
307-475 8 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2020-12-19   
307-476 A Laramie WY   450F ONVOY, LLC - WY 654   2025-03-02   
307-476 0 Laramie WY   450F ONVOY, LLC - WY 654   2025-03-02   
307-476 1 Laramie WY   450F ONVOY, LLC - WY 654   2025-04-11   
307-476 8 Laramie WY   450F ONVOY, LLC - WY 654   2025-05-10   
307-477 A Cheyenne WY CHYNWYVACM1  013B UNION TELEPHONE COMPANY 654      
307-478 A La Grange WY   6529 T-MOBILE USA, INC. 646   2025-04-04   
307-478 6 La Grange WY   6529 T-MOBILE USA, INC. 646   2025-05-25   
307-478 7 La Grange WY   6529 T-MOBILE USA, INC. 646   2025-05-25   
307-478 8 La Grange WY   6529 T-MOBILE USA, INC. 646   2025-04-07   
307-478 9 La Grange WY   6529 T-MOBILE USA, INC. 646   2025-04-04   
307-479 A Powell WY   450F ONVOY, LLC - WY 654   2025-04-05   
307-479 0 Powell WY   450F ONVOY, LLC - WY 654   2025-04-05   
307-479 1 Powell WY   581H AIRUS, INC. - WY 654   2025-05-12   
307-479 2 Powell WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2025-05-29   
307-479 3 Powell WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654   2025-05-29   
307-480 A Thermopolis WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-480 0 Thermopolis WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2005-08-12   
307-480 1 Thermopolis WY CSPRWYESPS1  009E BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER] 654   2021-09-06   
307-480 8 Thermopolis WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2013-05-30   
307-480 9 Thermopolis WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2018-04-22   

<< 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 28 >>

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.