IMPORTANT INFORMATION ABOUT THE NEW ALIAS REGUSTRY IN SPAIN
We would like to inform you about the upcoming changes related to SMS and RCS messaging in Spain, and the impact these changes will have on your services.
What is going to happen and from when? The Spanish regulator (CNMC) has created a mandatory Register of Sender Aliases. This register will require all aliases (aka alphanumeric SenderIDs) in Spain to be enrolled in the Alias Registry before it´s use, otherwise those messages will not be delivered. The legal obligations and blocking rules will start to be enforced progressively from June 7, 2026. From that date, unregistered aliases will be rejected by operators in Spain.
EDIT to Original Message – the date of June 7th 2026 has been postponed to 15th September 2026 to allow for a longer transition period.
If you send to numbers in Spain, either Spanish numbers or UK numbers roaming in Spain then please contact your Saascoms Account Manager who will arrange sender ID whitelisting.
CONTENT REGULATION – SPAIN.
FORBIDDEN CONTENT: “S.H.A.F.T.” (Hate, Firearms) Illegal substances (Marijuana/Cannabis, Prescription drugs)
ALLOWED SENSITIVE CONTENT with some nuances, check local regulation: “S.H.A.F.T.” (Sex, Alcohol, Tobacco) Political Religious, Gambling, Betting (allowed if subscribers have explicitly opted in, but fully forbidden for those under 18 years old) Illegal substances (Marijuana/Cannabis, CBD/THC, Prescription drugs, Vaping) Debt collection and forgiveness (Third-party debt collection, Debt consolidation, Debt reduction, Credit repair programs) High-risk financial services (Payday loans. Short term high-interest loans, Third-party auto loans, Third-party mortgage loans, Student loans, Cryptocurrency) Third-party lead generation
MARKETING TRAFFIC There is no specific legal prohibition against sending promotional SMS messages on Sundays or public holidays. The LSSI (Law on Information Society Services and Electronic Commerce) requires prior consent or a prior contractual relationship, but does not limit days or times; the GDPR (General Data Protection Regulation) and LOPDGDD (Organic Law on the Protection of Personal Data and Guarantee of Digital Rights) focus on consent, opt-out lists, and unsubscribes, without time restrictions.
Best practices are recommended: Voluntarily avoid sending on Sundays/public holidays to reduce complaints and improve open rates, although time restrictions apply only to calls (Art. 96 of the Consumer Protection Law).