IRAN (IR)

Locale Summary

Locale name	Iran
ISO code	IR
Region	Middle East & Africa
Mobile country code	432
Dialing code	+98

Guidelines

Two-way SMS supported	No
Number portability available	Yes
Twilio concatenated message support	Yes
Message length	-----
Twilio MMS support	Not Available
Sending SMS to landline numbers	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. Per local regulations, peer-to-peer (P2P) traffic is prohibited by Iranian networks. 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. Please take note that gambling, betting, political, religious or adult-related content is strictly prohibited in Iran.

Phone Numbers & Sender ID

	Alphanumeric		Long Code		Short Code
	Pre-registration	Dynamic	Domestic	International
Operator network capability	Required	Not Supported	Not Supported	Not Supported	Not Supported
Twilio supported	Required Learn more	Supported	---	Supported	---
Sender ID preserved	Yes	No	---	No	---
Provisioning time	2 weeks	N/A	N/A	N/A	N/A
UCS-2 support	N/A	N/A	N/A	N/A	N/A
Use case restrictions	Only Sender IDs related to International OTP traffic will be allowed. Other type of traffic as well as the one generated from Domestic Companies is not permitted in Iran. The registered Sender ID will not be reserved for the Network MTN to due local compliance reasons. The Sender ID will be replaced from a Longcode outside Twilio's platfrom	N/A	N/A	N/A	N/A
Best practices	During registration please provide a representative sample as SMS as content allow listing is also required in Iran. Messages submitted via a registered Sender ID with content that is different from the allowlisted one will be rejected	Sender ID Registration is Required for Iran. Submission of messages with unregistered Sender IDs will be executed on a best effort basis	N/A	Sender ID Registration is Required for Iran. Submission of messages with unregistered Sender IDs will be executed on a best effort basis	N/A

	Alphanumeric - Pre-registration
Operator network capability	Required
Twilio supported	Required Learn more
Sender ID preserved	Yes
Provisioning time	2 weeks
UCS-2 support	N/A
Use case restrictions	Only Sender IDs related to International OTP traffic will be allowed. Other type of traffic as well as the one generated from Domestic Companies is not permitted in Iran. The registered Sender ID will not be reserved for the Network MTN to due local compliance reasons. The Sender ID will be replaced from a Longcode outside Twilio's platfrom
Best practices	During registration please provide a representative sample as SMS as content allow listing is also required in Iran. Messages submitted via a registered Sender ID with content that is different from the allowlisted one will be rejected

	Alphanumeric - Dynamic
Operator network capability	Not Supported
Twilio supported	Supported
Sender ID preserved	No
Provisioning time	N/A
UCS-2 support	N/A
Use case restrictions	N/A
Best practices	Sender ID Registration is Required for Iran. Submission of messages with unregistered Sender IDs will be executed on a best effort basis

	Long Code - Domestic
Operator network capability	Not Supported
Twilio supported	---
Sender ID preserved	---
Provisioning time	N/A
UCS-2 support	N/A
Use case restrictions	N/A
Best practices	N/A

	Long Code - International
Operator network capability	Not Supported
Twilio supported	Supported
Sender ID preserved	No
Provisioning time	N/A
UCS-2 support	N/A
Use case restrictions	N/A
Best practices	Sender ID Registration is Required for Iran. Submission of messages with unregistered Sender IDs will be executed on a best effort basis

	Short Code
Operator network capability	Not Supported
Twilio supported	---
Sender ID preserved	---
Provisioning time	N/A
UCS-2 support	N/A
Use case restrictions	N/A
Best practices	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.