United Kingdom (UK) +44

Updated 3 months ago

United Kingdom Sender ID options
Regulations and Best Practices
Banned Content

Upcoming Sender Restrictions as of 31st October 2023

In an attempt to fight the ever-increasing smishing & phishing in UK, a new series of measures & restrictions will be put into place.

The below measure that will be put in place impacts international numeric, short code senders, generic alpha tags & special characters, please see below.

International numbers will be blocked
Alpha Tags going forward will be expected to be brand centric
Alpha tags containing special characters will also be blocked. Please, see below the only characters that will be supported in the alpha tag from July on; any other character not listed below will be considered a ‘special character’ and therefore subject to blocking on the operator side.

Any messages sent containing any of these generic terms will be blocked. Alpha Tags are expected to be brand specific.

1TimePin	Bank	Discount	NoReply	Repayment	SMSVerfiy
2FA	Banking	Energy	Notify	Reply	Support
Accept	Bill	Fraud	OneTimePin	Respond	System
Access	Billing	Help	Order	Save	Text
Account	Call	Info	OTP	Saving	Trace
Active	Card	InfoSMS	OTPSMS	Scam	Track
Admin	Caution	ISA	Package	Savings	Tracking
Alert	Check	Loan	Pay	Secure	TXT
Allow	CloudOTP	Login	Payment	Security	Update
Allowance	Code	Logistics	Pin	Service	Updates
App	Collect	LogMeIn	PinCode	Shipping	Validate
Appointment	Collection	Logon	Post	Sign	Verify
Approve	Confirm	Malware	Protocol	Signin	VerifySMS
Approved	Contact	Message	Purchase	Signon	VerifyMe
Auth	Control	Mobile	Ratify	SMS	Virus
AuthMsg	Courier	Mortgage	Rebate	SMSAuth	Warn
Authorise	Delay	MSG	Receipt	SMSCode	Warning
AuthSMS	Deliver	MsgAuth	Refund	SMSInfo	Winner
Aware	Delivery	Network	Reminder	SMSOTP
Advise	Certify	Key	Parcel	Schedule	Trust

** Supported Alpha Tag Characters **

A to Z (Uppercase) . (Period/Full Stop) A to Z (Lower case) (Dash) - 0 to 9 (Numeric) _ (Underscore) (Space) ‘ ‘ Ampersand &

***Flash messaging not supported in the UK.

United Kingdom Sender ID options

This is a fully featured route and delivery to ported numbers is supported.

When Sending an SMS through our platform, we give you a few options:

A shared number (default) - we assign a number to the outgoing SMS so the user can reply. You can setup rules for incoming SMS, anything is possible.
Your own number - replies will be sent to you as an SMS. Replies will be sent to your mobile number and will not show on the account dashboard.
Your alpha tag - e.g. "MyCompany". The receiver can't reply. This can be 11 characters maximum with no spaces. This alpha tag should be brand specific.
Your dedicated number* - you can purchase a ClickSend dedicated number. You can setup rules for incoming SMS, anything is possible. *If you require call forwarding please contact chat or support@clicksend.com

Messages will be blocked by the network if the number is a Lyca mobile originating number.

The range 74402 is blocked as Lyca mobile prefixes(senders) are not allowed due to grey route blocking protection on our platform. The recommended action would be to not use any senders that start with 74402 against 3-UK numbers.

Regulations and Best Practices

Opt-In:

Required. The content provider should be able to demonstrate proof of opt-in in the event of an operator audit or a user complaint.

Opt-out:

Required. The content provider is responsible for opting out the users from their databases.

SMS Marketing Messages must state that they are free by including in the message ‘free message’ or ‘freemsg’. The ability to opt out of future marketing messages must also be stated in the body of the message e.g. ‘to unsubscribe reply STOP to XXXXX’.

It is recommended that all STOP Command MOs are Free to user.