Beirut: You'll find strong 4G and expanding 5G coverage across the capital, particularly in central districts like Downtown, Hamra, Gemmayzeh, and Achrafieh. The signal is generally reliable outdoors and in modern buildings. However, connectivity can weaken inside older buildings with thick concrete walls or in basement-level restaurants and clubs. The main coastal corniche is very well-covered.

Tripoli: The modern parts of Lebanon's second-largest city have good 4G coverage. You can expect a consistent signal in the main commercial areas and along the waterfront. When exploring the historic Old Souk, the dense network of covered stone alleyways can make the signal less reliable, with occasional drop-offs deep within the market.

Byblos (Jbeil): This popular tourist city has excellent connectivity around the main attractions, including the Crusader Castle, the historic port, and the surrounding restaurants. As you wander deeper into the ancient, stone-walled Old Souk, the signal can become intermittent. Coverage is strong in the newer parts of town and along the coastal highway.

Sidon (Saida): Reliable mobile service is available throughout most of Sidon, with strong signals in the modern city center and around the famous Sea Castle. Much like other Lebanese cities with historic quarters, you may experience weaker or inconsistent coverage while navigating the narrow, covered passageways of its old souk.

Jounieh: The coastal city of Jounieh and its bay area offer solid mobile connectivity, perfect for its bustling beach clubs and restaurants. The signal is generally stable, but you might experience brief fluctuations while riding the Teleferique cable car up the mountain to Harissa, with a strong connection restored at the top.

Coastal Highway (Beirut-Tripoli-Sidon): You can expect strong and reliable 4G/LTE coverage along the majority of this main coastal route connecting Lebanon's major cities. Service may briefly drop when passing through shorter tunnels, such as the one at Chekka, but is otherwise very consistent.

Beirut-Damascus Highway: Connectivity is generally good in the towns along this route, but becomes less reliable when crossing the Mount Lebanon mountain range. Expect intermittent signal or complete loss of service at higher elevations around the Dahr el Baidar mountain pass.

Intercity Railways: Lebanon does not have an active or operational intercity passenger rail network. All former railway lines are defunct, so cellular connectivity along these corridors is not relevant for travel planning.

Mountainous Regions (Qadisha Valley, Chouf): While main roads to popular mountain towns maintain fair connectivity, exploring deeper into areas like the Qadisha Valley or the Chouf Biosphere Reserve will result in significant periods of no service due to the rugged terrain and deep valleys.

Bekaa Valley and Border Areas: Major towns in the Bekaa Valley like Zahle and Baalbek have good coverage, but the signal can be inconsistent in the wide agricultural plains between them. Service is often weaker and less reliable in remote northern regions like Akkar and along the eastern border with Syria.