Port Louis: As the nation's capital, network coverage is excellent across the city center, the Caudan Waterfront, and business districts. The Metro Express light rail system, being almost entirely overground, offers a stable and continuous connection during transit. Indoor coverage in older colonial buildings with thick stone walls can sometimes be reduced, but is generally very reliable.

Grand Baie: This major northern tourist hub boasts robust 4G and 5G coverage, especially along the coastal road, in the main shopping areas like La Croisette, and on the public beaches. The network is well-optimised for the high concentration of users in hotels and restaurants, ensuring strong performance for maps and social media.

Flic en Flac: Expect strong, consistent mobile signal along the popular west coast beach, within the large resort complexes, and throughout the town's main commercial strip. The network is built to handle high tourist demand, though signal strength might dip slightly if you venture further inland into the surrounding sugar cane fields.

Mahébourg: This historic southeastern town, located close to SSR International Airport, has very good overall connectivity. You will find a reliable signal in the town center, along the waterfront, and in the popular nearby area of Blue Bay. While network density might be slightly lower than in Port Louis, it is more than sufficient for all typical travel needs.

Curepipe: Situated on the central plateau, this major residential and commercial town has comprehensive network coverage. The connection remains strong in the busy town center and along the Metro Express line that terminates here. Indoor coverage in some of the larger concrete shopping centers can occasionally be weaker on lower floors but is rarely problematic.

Major Motorways (M1, M2, M3): Connectivity is generally strong and reliable along Mauritius's main motorways, including the M1 linking the airport to Port Louis, the M2 servicing the north towards Grand Baie, and the M3 link road. Expect consistent 4G/LTE for navigation and streaming through these key corridors.

Metro Express Light Rail: The Metro Express line, connecting Port Louis with Curepipe and other central towns, offers excellent mobile coverage for the majority of the journey. The signal may briefly dip in some covered sections or underpasses but is quickly restored.

Central Plateau and Mountain Roads: When driving through the island's interior, particularly on smaller B-roads crossing the central plateau or near mountainous areas like Chamarel, expect intermittent signal. Coverage can become patchy or drop completely in these less populated, scenic regions.

Black River Gorges National Park: This remote and forested region in the southwest is a known area for poor mobile reception. While you might find a signal at higher viewpoints, coverage is largely absent within the gorges and on many of the hiking trails.

Road Tunnels: Short road tunnels, such as the one on the M3 motorway near Pailles, will cause a temporary loss of mobile signal. Service typically resumes immediately upon exiting the tunnel.