SMS Sent from International Long Codes to the UK Will Be Blocked

Effective July 30, 2024, SMS sent from international long codes to the UK will be blocked by all carriers. This measure is due to the abuse of Person-To-Person (P2P) routes for Application-To-Person (A2P) SMS. To comply, use a UK long code, Alphanumeric Sender ID, or short code for A2P messages. Provisioning UK long codes takes 48 hours. Review Know Your Customer (KYC) requirements and replace international long codes to avoid message blocks.