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UK Sender ID guidelines

Alphanumeric Sender ID

Supported

Registration requirements

Important: To combat fraudulent messaging in the UK, British Telecommunications Plc (BT) requires any messaging traffic routed through their network using a SenderID associated with specific brands from protected industry sectors to be blocked, unless the brand's approval is obtained and a Letter of Authorization (LOA) is signed by the brand and filed with BT.

If you're a brand owner or if you're applying for a SenderID registration associated with a protected brand on behalf of a brand owner in the UK, you must submit a Letter of Authorization (LOA) signed by the brand and filed with BT:

  1. Fill out the LOA template. The LOA must be on the company letterhead of the Brand Owner (End Client) and signed by an authorized representative from the brand.

  2. Once signed, please open a ticket to submit the LOA to the Bandwidth Registration Support Team so it can be filed with BT along with the Sender ID registration.

The full list of protected brands cannot be shared, because it changes on a daily basis based on active phishing campaigns, meaning that multiple brands can be added each day.

For additional requirements, see Sender ID registration process.

Country regulations

General consent requirements. For promotional messaging, consent and opt-out support are mandatory.

Content restrictions

No specific content restrictions.

Additional information

For the full list of networks supported in the UK, see our Global Messaging Carrier Reach Matrix.

Note: Due to the rapidly evolving nature of global messaging regulations, this information is subject to change without notice. If you have additional questions, please contact our Messaging Registration Support Team.

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