Getting calls from 1600 or 140 series? Know the difference between the two and whether you can block them
The Telecom Regulatory Authority of India (TRAI) has issued a clarification on the purpose and functioning of the designated 1600 and 140 number series.
The regulator said these two series serve completely different purposes. While 1600-series numbers are reserved for service and transaction-related communications, 140-series numbers are exclusively meant for promotional or marketing calls.
