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Showing 1 of 4 subjects, those that changed from 1 to 15 July 2026.Show all

Commercial call number series

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Prelims

The 1600 number series is reserved for service calls from regulated financial entities and government, and the 140 series for promotional calls, so that a subscriber can tell one from the other and block the second.

What changed

  1. 10 Jul 2026New subjectalso in news

    • The 1600 series is reserved for service calls from regulated financial entities and government, and may not be tagged or filtered. The 140 series is for promotional calls, which a subscriber can block only through the Do Not Disturb registry.

    PIB, 10 Jul 2026: TRAI releases clarifications regarding functioning of designated 1600 series and 140 series (opens in a new tab)