BSNL is India's state-owned operator. Its 4G runs on an indigenous network stack, launched nationwide in September 2025 with more than 97,500 towers. In Delhi and Mumbai, service comes from fellow state-owned MTNL, still reported separately by TRAI in August 2026.

Fixed network
- Network used
- BSNL
- Subscribers
- 4.56M· August 2026, wired broadband
- Coverage
- India (Delhi and Mumbai: MTNL)

Mobile network
- Network used
- BSNL
- Technologies
- 4G
- Subscribers
- 93.7M· August 2026, incl. M2M SIMs
- Coverage
- India, except Delhi and Mumbai
97,672 indigenous 4G sites installed and 95,511 on air on 15 January 2026, out of 100,000 ordered.