HLR (Home Location Register) is a central Database that contains some details about the mobile subscriber authorized to use the GSM network.
RedRabbit offers on the spot HRL service to enquire about any mobile number to get its detail (Status, belong operator, belong country, etc..) via cloud-based API in an easy and fast way.
RedRabbit provide an HTTP API for clients to connect and enquiry about the target mobile number on an easy and straight forward way.