Nepal fiber optic cable broken

Recent fiber optic cable breaks in Nepal have caused localized and nationwide internet disruptions, particularly affecting areas like Birgunj, Bhairahawa, and Lalitpur.

Recent Incidents and Impact

Nepal has experienced multiple fiber optic cable disruptions, which have led to significant internet outages. For instance, in February 2025, fiber cuts in Airtel's network in Birgunj and Bhairahawa caused a nationwide internet shutdown lasting nearly an hour, affecting ISPs and end-users across the country. The outage initially raised concerns about upstream bandwidth issues from India and unpaid dues, but the root cause was confirmed as physical damage to fiber cables.

Such incidents highlight the vulnerability of Nepal's telecommunication infrastructure to cable breaks.

Causes of Fiber Cable Breaks

Fiber optic cables in Nepal are laid in various forms, including direct-buried, underground-ducted, and overhead installations. Breaks can occur due to construction activities, accidental damage by other licensees, natural events, or maintenance errors. The Nepal Telecommunications Authority (NTA) emphasizes the importance of proper procedures and record-keeping to minimize such disruptions, as damage can lead to financial loss and service degradation.

Repair and Maintenance

Repairing fiber optic cables involves specialized equipment and expertise. Technicians use tools like OTDR (Optical Time Domain Reflectometer) to locate breaks, Optical Power Meters to measure signal loss, and splicing machines to reconnect fibers. Companies like Technovate and Eman Communications provide end-to-end solutions, including installation, troubleshooting, and dismantling of fiber networks.

Rapid response is critical to restore services, though underground or extensive cable damage may require longer repair times.

Preventive Measures

To reduce future disruptions, NTA mandates that all licensees maintain detailed records of their fiber networks and follow standardized procedures for laying and maintaining cables. Coordination among ISPs and adherence to safety protocols are essential to prevent accidental damage and ensure network redundancy, which helps maintain service continuity during incidents. In summary, fiber optic cable breaks in Nepal can cause widespread internet outages, but proper maintenance, rapid repair, and regulatory oversight are key to minimizing their impact and ensuring reliable telecommunication services.