--- title: "Dominican Republic SMS Guideline" slug: "dominican-republic-sms-guideline" description: "Follow Dominican Republic SMS guidelines in Insider One to comply with local SMS regulations, sender requirements, and messaging best practices." updated: 2026-05-14T12:07:05Z published: 2026-05-14T12:07:05Z canonical: "academy.insiderone.com/dominican-republic-sms-guideline" --- > ## Documentation Index > Fetch the complete documentation index at: https://academy.insiderone.com/llms.txt > Use this file to discover all available pages before exploring further. # Dominican Republic SMS Guideline You can refer to the SMS guidelines for the Dominican Republic to help with onboarding. | Locale Name | ISO Code | Region | Dialing Code | Available Routes | | --- | --- | --- | --- | --- | | Dominican Republic | DO | North America | +1809 | Promotional Transactional | ## Promotional Routes Below, you can see the guidelines for promotional routes: | **Comparison of Sender IDs** | **Opt-out Options for Sender IDs** | | --- | --- | | - Branded Sender ID - 10 MPS is the default - High deliverability | Unsubscribe with External/Internal Link | ## Transactional Routes SenderID approval processes are the same for transactional routes to use the [SMS transactional API](/v1/docs/send-transactional-sms).