Reference DataRate Center DirectoryGILCREST, CO Rate CenterGILCREST — COData last updated: October 30, 2026LATA656StateCOArea Codes2Exchanges (NXX)4Carriers2Coordinates40.28335680349845, -104.778489596246Area Codes748 970Top CarriersCarrierOCNNXX CountONVOY, LLC - CO026D3QWEST CORPORATION96361