SMS compliance in Argentina

The rules that apply to business SMS sent to numbers in Argentina, with the source for each.

Quiet hours

Commercial SMS recommended Mon-Fri 08:00-20:00 (No Llame regime limits contact).

Source: Law 26.951 / industry practice

Consent

Numbers registered in 'No Llame' must not be contacted for advertising; consent recommended.

Source: Law 25.326 on Personal Data Protection; Law 26.951 'No Llame'

Opt-out

No Llame' registry; include opt-out instructions.

Source: Law 25.326 on Personal Data Protection; Law 26.951 'No Llame' / regulator rules

Prohibited content

Blocked: phishing/fraud, illegal or unlicensed gambling, adult content, hate/political content (most operators), counterfeit/illegal goods, unlicensed financial offers; URL shorteners often blocked.

Source: Operator content policies / national advertising law

Data protection law

Law 25.326 on Personal Data Protection; Law 26.951 'No Llame'. Supervisory authority: AAIP.

Source: Law 25.326 on Personal Data Protection; Law 26.951 'No Llame'

Sender ID rule

Alphanumeric SIDs generally not supported; messages delivered from short/long numeric codes.

Source: Operator rules (see SenderID sheet)

Other

Classify traffic as promotional or transactional; OTP/transactional must not contain marketing content; use local language or Unicode where required.

Source: Industry practice

This summary is guidance, not legal advice. Last verified 23 October 2026.