HLR lookup provides accurate information about a subscriber's location and current status on the network. This allows you to formulate more personalized services and attract new customers. With the help of HLR lookup, companies better understand what exactly a subscriber might need.
For example, if a customer signs up for roaming for a month in October, then in November, the mobile operator can again offer him or her tariffs for the home region. This can be done in contextual advertising, targeted ads, or mailings. A relevant offer will increase the likelihood that a person will click on the link and take a targeted action.