Guidelines to easily unblock sim cards - Telecom operators Nigerian telecommunications companies have released step-by-step guidelines to assist subscribers in unblocking their SIM cards. Recall that the phone service providers recently disconnected several lines over the ongoing National Identification Number (NIN)-SIM harmonisation exercise. The initiative, which aims to enhance the integrity of the national SIM registration database, has left many users facing temporary service disruptions, causing outrage among customers. To restore connectivity, telecom companies have outlined the following procedures for customers to follow. Airtel subscribers can dial *121# and enter their eleven-digit NIN to...