{"id":101417,"date":"2026-04-28T14:17:31","date_gmt":"2026-04-28T12:17:31","guid":{"rendered":"https:\/\/www.viafirma.com\/?post_type=faq&#038;p=101417"},"modified":"2026-05-19T13:01:41","modified_gmt":"2026-05-19T11:01:41","slug":"restrictions-for-sending-sms-to-the-united-states","status":"publish","type":"faq","link":"https:\/\/www.viafirma.com\/en\/faqs\/restrictions-for-sending-sms-to-the-united-states\/","title":{"rendered":"Restrictions for sending SMS to the United States"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">In the United States, the SMS ecosystem has changed significantly with the implementation of the <strong>10DLC<\/strong> \u2014 10-Digit Long Code \u2014 standard for <strong>A2P<\/strong>, Application-to-Person, traffic.<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\"><strong> Brand and Campaign Registration<\/strong>: It is mandatory to register both the Brand \u2014 who is sending \u2014 and the Campaign \u2014 what is being sent and for what purpose \u2014 through an ecosystem called The Campaign Registry.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong> Categorisation<\/strong>: The type of messages must be specified, for example: electronic signature notifications, 2FA\/OTP or marketing. Each category has different delivery rates and costs.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong> Strict Consent<\/strong> \u2014 Opt-in: US operators are extremely strict regarding consent. You must be able to prove that the user agreed to receive SMS messages. Messages must always include a clear opt-out option, such as \u201cReply STOP to unsubscribe\u201d.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong> Content Prohibition<\/strong> \u2014 SHAFT: It is strictly prohibited to send content related to Sex, Alcohol, Firearms, Tobacco or Cannabis \u2014 SHAFT \u2014 even in states where consumption is legal. Non-compliance may result in fines of up to $10,000 per message.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"><strong> Prohibition of Shorteners<\/strong>: Public URL shorteners, such as bit.ly or tinyurl, often cause campaigns to be immediately blocked by operators such as T-Mobile, AT&amp;T and Verizon.<\/span><\/li>\n<\/ul>\n<p><br style=\"font-weight: 400;\" \/><br style=\"font-weight: 400;\" \/><\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"plain-container","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[270],"class_list":["post-101417","faq","type-faq","status-publish","hentry","category-sms-requirements-and-regulation-by-country"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.viafirma.com\/en\/wp-json\/wp\/v2\/faq\/101417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.viafirma.com\/en\/wp-json\/wp\/v2\/faq"}],"about":[{"href":"https:\/\/www.viafirma.com\/en\/wp-json\/wp\/v2\/types\/faq"}],"version-history":[{"count":2,"href":"https:\/\/www.viafirma.com\/en\/wp-json\/wp\/v2\/faq\/101417\/revisions"}],"predecessor-version":[{"id":101419,"href":"https:\/\/www.viafirma.com\/en\/wp-json\/wp\/v2\/faq\/101417\/revisions\/101419"}],"wp:attachment":[{"href":"https:\/\/www.viafirma.com\/en\/wp-json\/wp\/v2\/media?parent=101417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.viafirma.com\/en\/wp-json\/wp\/v2\/categories?post=101417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}