India has something similar, and even goes a step further by having last alphabet as an identifier for Promotional, Services, Govt. etc. https://www.trai.gov.i

India has something similar, and even goes a step further by having last alphabet as an identifier for Promotional, Services, Govt. etc. https://www.trai.gov.in/advice-to-senders https://www.trai.gov.in/advice-to-senders