The Multi Commodity Exchange of India Limited (MCX), on November 06, 2025, notified regarding the adherence to TRAI Direction dated November 19, 2025 – Mandatory Phase-wise Adoption of 1600-Series Numbers.
The following has been stated namely: -
• The Telecom Regulatory Authority of India (“TRAI”) has issued directions dated 19th November 2025 under section 13, read with sub-clauses (i) and (v) of clause (b) of sub-section (1) of section 11 of the TRAI Act, 1997, mandating phase-wise adoption of the 1600-series for all service and transactional voice calls made by entities regulated by RBI, SEBI and PFRDA.
• Please find attached the directive dated November 19, 2025, issued by the Telecom Regulatory Authority of India on the above-mentioned subject and TRAI Press Release No. 135 dated November 19, 2025
[Circular No. MCX/MCXCCL/616/2025]
