Guidelines

Romania (RO)

We've compiled regulatory and compliance information to help ensure you're communicating effectively and compliantly around the world.

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Locale Summary
Locale name	Romania
ISO code The International Organization for Standardization two character representation for the given locale.	RO
Region	Europe
Mobile country code A three digit code associated with the given locale and used in conjunction with a Mobile Network Code to uniquely identify mobile networks.	226
Dialing code The dialing prefix used to establish a call or send an SMS from one locale to the given locale.	+40

Guidelines
Two-way SMS supported Whether Twilio supports two-way SMS in the given locale.	No
Number portability available Whether number portability is available in the given locale.	Yes
Twilio concatenated message support Concatenation refers to the capability of splitting a message that is too long to be sent in one SMS into smaller pieces and then joining the pieces at the receiving end so that the receiver sees the message as one.	Yes* For certain sender ID types this may not be supported. Where messages are split and rejoined may vary based on character encoding.
Message length How many characters can be sent given a particular message encoding before the message will be split into concatenated segments.	-----
Twilio MMS support Multimedia Messaging Service (MMS) provides a standards-based means to send pictures and video to mobile phones.	Converted to SMS with embedded URL
Sending SMS to landline numbers How Twilio handles an SMS message destined for landline telephone number.	You cannot send SMS to a landline destination number: the Twilio REST API will throw a 400 response with error code 21614, the message will not appear in the logs, and the account will not be charged.
Compliance considerations Twilio strongly encourages customers to review proposed use cases with qualified legal counsel to make sure that they comply with all applicable laws. This table lists some general best practices.	Mobile operators Vodafone and Orange in Romania do not support Dynamic Sender IDs. These IDs will be overwritten with either a generic short code or an Alphanumeric Sender ID to ensure delivery. Romanian mobile operators are blocking and filtering SMS content containing web addresses (URLs). If your SMS content carries a web URL, kindly reach out to Twilio customer services to get your SMS content added to an allow list to prevent delivery failure. When content registration is complete, you must send the messages with an International Long Code Sender ID or an Alphanumeric Sender ID. Sending messages using Domestic Long Code Sender ID may result in messages containing a web URL being filtered. Twilio strongly encourages customers to review proposed use cases with qualified legal counsel to make sure that they comply with all applicable laws. The following are some general best practices: Get opt-in consent from each end-user before sending any communication to them, particularly for marketing or other non-essential communications. Only communicate during an end-user’s daytime hours unless it is urgent. SMS campaigns should support HELP/STOP messages, and similar messages, in the end-user’s local language. Do not contact end-users on do-not-call or do-not-disturb registries.

Phone Numbers & Sender ID

Alphanumeric

	Global Pre-registration	Dynamic
Operator network capability Whether mobile operators in the given country support the feature.	Required only for Telekom Romania Supported optionally for all the rest Romanian Networks There is no segregation between International and Domestic Traffic	Supported
Twilio supported Whether Twilio supports the feature for the given country.	Required only for Telekom Romania (Free of cost) Supported optionally for all the rest Romanian Networks (Registration Fees are applied) Learn more and register via the Console	Supported Learn more
Sender ID preserved In some countries sender IDs for certain sender types are not preserved and are changed for compliance and/or deliverability reasons. In these countries mobile subscribers will see a different ‘from sender ID’ than the one sent by you.	Yes	No
Provisioning time Provisioning is the process of getting the sender ID approved and registered with mobile networks (depending on country requirements). Provisioning time is how long this process takes in the given country.	4 weeks	N/A
UCS-2 support	Supported	Supported
Use case restrictions	N/A	Messages with alphanumeric Sender IDs sent to the Orange, Vodafone or Digi.Mobil networks will be overwritten with either a generic short code or an Alphanumeric Sender ID outside the Twilio platform. Starting from the 15th of January of 2025, messages with unregistered Alpha Sender IDs will not be supported for Telekom Romania.
Best practices	Romania is a country very sensitive to URLs. Even if the Sender ID gets registered, sending messages containing a URL that is not checked and allowlisted may produce issues in the delivery so we would like to suggest our customers to proactively provide us with the full list of ULRs they intend to use during Sender ID Registration procedure as sample SMS messages. Twilio will check them and make sure they are allowlisted. In case new URLs need to be used in the future please reach out to Twilio customer services to get the new URL allowlisted alongside the sender ID you have registered. Additionally starting from the 20th of November of 2024 the URL Registration needs to be combined with an Alpha Sender ID Registration otherwise messages sent to Telekom Romania will fail. Learn more and register via the Console.	Twilio suggests using a Registered Alpha Sender ID in Romania.

Long codes and short codes

	Long code domestic	Long code international	Short code
Operator network capability Whether mobile operators in the given country support the feature.	Not Supported	Not Supported	Supported
Twilio supported Whether Twilio supports the feature for the given country.	---	Supported	Not Supported
Sender ID preserved In some countries sender IDs for certain sender types are not preserved and are changed for compliance and/or deliverability reasons. In these countries mobile subscribers will see a different ‘from sender ID’ than the one sent by you.	---	No	---
Provisioning time Provisioning is the process of getting the sender ID approved and registered with mobile networks (depending on country requirements). Provisioning time is how long this process takes in the given country.	N/A	N/A	N/A
UCS-2 support	N/A	Supported	N/A
Use case restrictions	N/A	International Numeric Sender IDs will be overwritten with either a generic short code or an Alphanumeric Sender ID outside the Twilio platform. Starting from the 20th of November of 2024, messages with Numeric Sender IDs will not be supported for Telekom Romania.	N/A
Best practices	N/A	Twilio suggests using a Registered Alpha Sender ID in Romania.	N/A

For the benefit of all our customers, these guidelines are provided to help you comply with applicable requirements and to help ensure Twilio's platform remains compliant with global telecommunications ecosystem requirements. These guidelines represent our current understanding of common compliance requirements generally applicable to Twilio and its customers, and do not constitute legal advice. By posting these guidelines, Twilio makes no assurances regarding the legal compliance of your application built using our APIs. You are expected to understand and abide by all compliance obligations applicable to your specific application. You should check these pages regularly for updates as telecommunications ecosystem requirements continue to evolve and change, and the information below may be updated or changed without notice.