# What are SMS delivery regulations in particular countries? In some countries outside European Union, delivery is only on best-effort basis (e.g. Middle Eastern countries and Africa). It means we’ll do our best to deliver the message but can’t guarantee a successful delivery. For some destinations delivery reports from carriers could be unavailable. In some destinations, Alphanumeric or numeric Sender Name won’t be supported. Please check rules for your SMS destination in the table below or contact us in case you have more questions or uncertainties. Carriers in some destinations might not support message concatenation (messages longer than 160 characters) or unicodes in SMS content. If you require support with your sender name pre-registration, please [contact our Customer Success Team](https://www.getresponse.com/features/support). **Country** **Sender Name Handling** **Content Regulations** [Argentina](https://api.support.vonage.com/hc/en-us/articles/204018063-Argentina-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Nextel (722020): no DLR Dialling format: 54 + 10 digits (drop leading 9 from local number) — [Australia](https://api.support.vonage.com/hc/en-us/articles/204017673-Australia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED ⚠ PRE-REGISTRATION REQUIRED To pre-register sender name you need an Enterprise level account (MAX). Please [contact GetResponse Customer Success Team](https://www.getresponse.com/features/support) for details. Starting July 1, 2026, any alphanumeric or branded Sender ID used to send messages to Australian mobile numbers must be registered. If a Sender ID is not registered by that date, recipients will see “Unverified” displayed on their handsets instead of your business name. To ensure ongoing compliance with the Australian SPAM Act 2003, promotional/marketing SMS messages: Can only be sent with the consent of the recipient (the account-holder) Must include clear sender information Must contain an opt-out or unsubscribe function Failure to comply may lead to a number of penal actions by ACMA, including formal warnings, fines and mandated account suspension. [Austria](https://api.support.vonage.com/hc/en-us/articles/204017743-Austria-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Standard EU GDPR consent applies [Belgium](https://api.support.vonage.com/hc/en-us/articles/204017293-Belgium-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Belgacom rewrites sender ID to random numeric Standard EU GDPR consent applies [Brazil](https://api.support.vonage.com/hc/en-us/articles/204017263-Brazil-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Sender ID fixed to short code 28908 or a local number – cannot be changed once set. Operator approval required. — [Bulgaria](https://api.support.vonage.com/hc/en-us/articles/204017883-Bulgaria-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED (operator-dependent) 28401 Mobiltel: rewrites all IDs to ‘InfoSMS’ 28403 BTC: supports all IDs 28405 Telenor: rewrites numeric IDs Standard EU GDPR consent applies [Canada](https://api.support.vonage.com/hc/en-us/articles/204024183-Canada-SMS-Features-and-Restrictions) Alphanumeric sender ID sender IDs are not supported and will be replaced with pre-approved number. SMS marketing campaigns are available with 10DLC phone numbers. [Learn more about setup and configuration for your US/CA campaigns here](https://www.getresponse.com/help/how-to-set-up-sms-marketing-in-the-usa-and-canada.html).  SHAFT content prohibited (Sex, Hate, Alcohol, Firearms, Tobacco) [Chile](https://api.support.vonage.com/hc/en-us/articles/204017513-Chile-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Sender IDs auto-rewritten to +5644890XXXX DLR unreliable No spam, political, or adult content [Colombia](https://api.support.vonage.com/hc/en-us/articles/204017593-Colombia-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported — [Croatia](https://api.support.vonage.com/hc/en-us/articles/204017853-Croatia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Cyprus](https://api.support.vonage.com/hc/en-us/articles/204018163-Cyprus-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Czech Republic](https://api.support.vonage.com/hc/en-us/articles/204017703-Czech-Republic-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported ⚠ PRE-REGISTRATION REQUIRED Sender-name pre-registration required; sendings may be blocked without it — [Denmark](https://api.support.vonage.com/hc/en-us/articles/204018023-Denmark-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED No political, religious, unsolicited promotional, or gambling content [Estonia](https://api.support.vonage.com/hc/en-us/articles/204017753-Estonia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Finland](https://api.support.vonage.com/hc/en-us/articles/216878428-Finland-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [France](https://api.support.vonage.com/hc/en-us/articles/204017483-France-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED SFR, Bouygues, Orange: Alphanumeric sender ID IDs accepted only 08:00–20:00 Mon-Sat local time Special characters in sender IDs rejected Alphanumeric sender ID IDs containing network names (‘sfr’ etc.) filtered Free (20815): rewrites to shortcode Opt-out mechanism required (e.g. STOP au 36179, or unsubscribe link) Avoid Sundays and public holidays (industry practice) [Georgia](https://api.support.vonage.com/hc/en-us/articles/360012526691-Georgia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Germany](https://api.support.vonage.com/hc/en-us/articles/212871228-Germany-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Double opt-in required (German case law) No additional content restrictions beyond Vonage AUP [Greece](https://api.support.vonage.com/hc/en-us/articles/204018003-Greece-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Hungary](https://api.support.vonage.com/hc/en-us/articles/204017723-Hungary-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Sender IDs overwritten to local numeric originator to maximise delivery — Iceland Alphanumeric sender ID: SUPPORTED — [Indonesia](https://api.support.vonage.com/hc/en-us/articles/204017053-Indonesia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Non-registered or generic sender IDs may be replaced; best-effort delivery \* Pre-registration recommended — [Ireland](https://api.support.vonage.com/hc/en-us/articles/204017773-Ireland-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Israel](https://api.support.vonage.com/hc/en-us/articles/204017803-Israel-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Dynamic sender ID usually supported but may be changed to another Alphanumeric sender ID or random numeric — [Italy](https://api.support.vonage.com/hc/en-us/articles/204017653-Italy-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Japan](https://api.support.vonage.com/hc/en-us/articles/204017353-Japan-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Numeric IDs changed \* Pre-registration recommended ⚠ PRE-REGISTRATION REQUIRED for messages containing URL links URL links not allowed without pre-registration [Latvia](https://api.support.vonage.com/hc/en-us/articles/204017583-Latvia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Luxembourg](https://api.support.vonage.com/hc/en-us/articles/360013315431-Luxembourg-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Malaysia](https://api.support.vonage.com/hc/en-us/articles/204017243-Malaysia-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Sender ID may be overwritten to short code or random Malaysian number — [Malta](https://api.support.vonage.com/hc/en-us/articles/204018133-Malta-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Mexico](https://api.support.vonage.com/hc/en-us/articles/204017253-Mexico-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Concatenation not supported for 2-way LVN traffic — [Monaco](https://api.support.vonage.com/hc/en-us/articles/360013093312-Monaco-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Netherlands](https://api.support.vonage.com/hc/en-us/articles/204017903-Netherlands-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Standard EU GDPR consent applies No additional content restrictions beyond Vonage AUP [Norway](https://api.support.vonage.com/hc/en-us/articles/204017813-Norway-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Pakistan](https://api.support.vonage.com/hc/en-us/articles/204017333-Pakistan-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported — [Philippines](https://api.support.vonage.com/hc/en-us/articles/204017413-Philippines-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED (operator-dependent) ⚠ PRE-REGISTRATION REQUIRED Smart (51503): sender converted to NXSMS, no DLR Globe (51501) & Sun (51505): dynamic sender but no DLR Unicode not supported; special currency chars unavailable on some networks — [Poland](https://api.support.vonage.com/hc/en-us/articles/204017553-Poland-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED No pre-registration required for branded Alphanumeric sender ID. CERT-restricted sender Ids supported with Enterprise level accounts. No political, religious, or unsolicited promotional content Premium-rate numbers/shortcodes in message body blocked Gambling only permitted for Polish Ministry of Finance–licensed providers with documented subscriber consent [Portugal](https://api.support.vonage.com/hc/en-us/articles/204017473-Portugal-SMS-Features-and-Restrictions) — — [Rwanda](https://api.support.vonage.com/hc/en-us/articles/204018113-Rwanda-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Singapore](https://api.support.vonage.com/hc/en-us/articles/204017993-Singapore-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Slovakia](https://api.support.vonage.com/hc/en-us/articles/204018013-Slovakia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Slovenia](https://api.support.vonage.com/hc/en-us/articles/204018173-Slovenia-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Spain](https://api.support.vonage.com/hc/en-us/articles/204017923-Spain-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED ⚠ PRE-REGISTRATION REQUIRED from 7 June 2026 Unregistered sender IDs will be blocked after this date Registration via new Vonage process P2P prohibited No political, religious, unsolicited promotional, or gambling content [Sweden](https://api.support.vonage.com/hc/en-us/articles/204017573-Sweden-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED — [Switzerland](https://api.support.vonage.com/hc/en-us/articles/204017733-Switzerland-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Double opt-in required [Thailand](https://api.support.vonage.com/hc/en-us/articles/204017443-Thailand-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Sender IDs replaced on all networks \* Pre-registration recommended — [Turkey](https://api.support.vonage.com/hc/en-us/articles/204017543-Turkey-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED ⚠ PRE-REGISTRATION REQUIRED Dynamic sender IDs not supported Numeric and generic sender IDs not supported 5 characters at end of SMS reserved for operator code (BXXX) ⚠ From 1 April 2026: all international A2P SMS containing any URL or link (including shortened, tracking, unsubscribe, or plain domain) are BLOCKED to Turkish subscribers Exception requires local Turkish legal entity and operator approval [Ukraine](https://api.support.vonage.com/hc/en-us/articles/204017503-Ukraine-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED Sender IDs may be modified to ensure delivery — [United Kingdom](https://api.support.vonage.com/hc/en-us/articles/204017783-United-Kingdom-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED ⚠ PRE-REGISTRATION REQUIRED PSA and Ofcom age-verification required for adult/gambling content Vonage does not service certain UK number ranges [United States](https://api.support.vonage.com/hc/en-us/articles/204017023-United-States-SMS-Features-and-Restrictions) Alphanumeric sender ID: NOT supported Replaced with pre-approved number ⚠ 10DLC brand + campaign registration required; TFN registration required Political senders need Campaign Verify token STOP/HELP auto-responses required SHAFT prohibited (Sex, Hate, Alcohol, Firearms, Tobacco) Gambling/sweepstakes, high-risk financial services, 3rd-party debt collection, CBD/tobacco/vape, get-rich-quick schemes prohibited [Vietnam](https://api.support.vonage.com/hc/en-us/articles/204017273-Vietnam-SMS-Features-and-Restrictions) Alphanumeric sender ID: SUPPORTED ⚠ PRE-REGISTRATION REQUIRED All non-registered sender IDs changed to generic or international format — If you can’t find your SMS destination on the list, [please browse our partner’s directory](https://api.support.vonage.com/hc/en-us/sections/200622473-Country-Specific-Features-and-Restrictions).