Practical sender, registration, compliance and delivery guidance by market — written for the team that has to launch the traffic, not just read the rules.
Every guide labels each fact so you know whether it is binding, supplier-specific or our own standard. Blurring those three is how launches get blocked.
Binding obligations from national legislation and the telecoms regulator.
Rules enforced by operators, aggregators or providers on the specific route your traffic uses. Route-dependent and subject to change.
What we ask customers to do to protect deliverability and stay comfortably inside both of the above.
SenderID presentation, registration, consent and route policy for OTP, transactional and marketing SMS in Brazil.
Last reviewed: 31 July 2026
Read the guideSender rewriting, domestic longcode limits, opt-out, No Molestar and route policy for OTP, transactional and marketing SMS in Chile.
Last reviewed: 31 July 2026
Read the guideSender rewriting to local shortcodes, dedicated shortcode provisioning, RNE suppression, Law 2300 contact hours and route policy for OTP, transactional and marketing A2P SMS in Colombia.
Last reviewed: 31 July 2026
Read the guideSender rewriting to route-assigned local numbers, prior-request consent under Law 8642 and Decree 37899, Law 8968 data disclosures, SUTEL portability and the June 2026 anti-smishing requirements for A2P SMS in Costa Rica.
Last reviewed: 1 August 2026
Read the guideSenderID preservation versus rewriting to shortcodes, REPEP suppression, the current federal data and consumer laws, and ten-digit numbering and route policy for A2P SMS in Mexico.
Last reviewed: 1 August 2026
Read the guide876/658 numbering, active number portability, alphanumeric senderID preservation, Data Protection Act direct-marketing controls and route policy for A2P SMS in Jamaica.
Last reviewed: 1 August 2026
Read the guide+51 mobile numbering, active portability, senderID rewriting to local numeric senders, Law 32323 consent controls and route policy for A2P SMS in Peru.
Last reviewed: 1 August 2026
Read the guide+593 mobile numbering, active portability, senderID rewriting with selected CNT exceptions, prior-authorisation rules for commercial messaging and route policy for A2P SMS in Ecuador.
Last reviewed: 1 August 2026
Read the guide+502 eight-digit mobile numbering, Claro and Tigo sender behaviour, pending portability implementation, consent controls and route policy for A2P SMS in Guatemala.
Last reviewed: 1 August 2026
Read the guide+503 eight-digit numbering with current mobile NDCs 5, 6 and 7, active number portability, Claro-only preregistered sender preservation, sender rewriting, one-way route behaviour and the 2024 personal-data law for A2P SMS in El Salvador.
Last reviewed: 17 August 2026
Read the guide+504 eight-digit closed numbering with mobile 3, 7, 8 and 9 series, mobile-only number portability, preregistered alphanumeric senders preserved while dynamic senders are rewritten, a one-way route, and a constitutional privacy framework with no comprehensive data-protection statute in force.
Last reviewed: 17 August 2026
Read the guide+1 809/829/849 NANP numbering, active portability, sender rewriting, Law 310-14 commercial-message controls, Law 172-13 personal-data duties and route policy for A2P SMS in the Dominican Republic.
Last reviewed: 1 August 2026
Read the guide+49 mobile ranges beginning 15, 16 and 17, route-dependent sender presentation and replies, UWG §7 marketing consent, GDPR objection duties and route policy for A2P SMS in Germany.
Last reviewed: 1 August 2026
Read the guide+54 ten-digit SMS formatting without the voice-only 9, active portability, sender rewriting, Registro Nacional No Llame screening, Law 25.326 personal-data duties and route policy for A2P SMS in Argentina.
Last reviewed: 1 August 2026
Read the guide+1 NANP validation, registered A2P 10DLC, verified toll-free and shortcode sender options, TCPA and Do Not Call consent and opt-out rules, reassigned-number controls and carrier policy for US messaging.
Last reviewed: 1 August 2026
Read the guide+44 mobile validation, preserved alphanumeric and UK long-code or short-code senders, protected-brand controls, PECR consent and soft opt-in rules, opt-out handling, landline text-to-speech and current UK route behaviour.
Last reviewed: 17 August 2026
Read the guide+34 nine-digit mobile numbering, registered CNMC aliases, numeric and short-code sender options, LSSI consent and PUBLICIDAD identification, GDPR objections, advertising-exclusion checks and route policy for A2P SMS in Spain.
Last reviewed: 1 August 2026
Read the guide+595 mobile formatting, mobile number portability, CONATEL seven-digit A2P origins, sender replacement, No Molestar checks, electronic-commerce consent and route policy for A2P SMS in Paraguay.
Last reviewed: 1 August 2026
Read the guide+63 mobile formatting, mobile number portability, registered sender IDs, two-way domestic long codes, NTC opt-in and quiet-period rules, Data Privacy Act objections and route policy for A2P SMS in the Philippines.
Last reviewed: 1 August 2026
Read the guide+46 mobile formatting, number portability, dynamic alphanumeric sender IDs, two-way numeric routes, Swedish opt-in and soft-opt-in rules, GDPR objections, anti-fraud filtering and route policy for A2P SMS in Sweden.
Last reviewed: 1 August 2026
Read the guide+58 mobile formatting, the CONATEL 0422 range, one-way route behaviour, sender rewriting, single-segment limits and constitutional privacy duties for A2P SMS in Venezuela.
Last reviewed: 1 August 2026
Read the guideBeing written — not published yet.
More country guides are in preparation. We publish a market once we can separate statute from live route policy with sources.
Tell us the destination, traffic category and volume and we will review the routes and the policy that would apply to you.