Unwanted Calls

Receiving unwanted nuisance calls?


Please be assured we do not make any sales or marketing calls ourselves.We will take the appropriate action against any of our customers who are found to be in breach of telecommunications legislation or regulatory guidelines.

Magrathea Telecommunications is a wholesale provider of telecom services to the telecommunications industry. Our clients are resellers and communications providers and one of them may have been trying to call you on behalf of one of its own contact centre customers.

If you have searched online and found that the number that has been making sales or marketing calls to you is operated by Magrathea Telecommunications and you no longer wish to receive these calls, here is our advice on what to do next:

1: Tell the person calling you that you no longer wish to receive calls from them. Ask them to place your number on their Do Not Call list. Once you have done this, they must not make any further calls to your number.

2: Register with the Telephone Preference Service. It is free to register – and once you have registered, a company should not make sales or marketing calls to you unless you have given them permission to do so. Please be aware that registering with the TPS won’t stop you receiving calls from call centres abroad or from research companies for example as it only deals with telephone numbers that wish to opt out from sales and marketing calls.

3: If you have followed steps 1 and 2 and you are still receiving calls from the same number, you should consider making a complaint to the relevant regulatory body. The Ofcom website has some useful information on how to go about this: https://www.ofcom.org.uk/phones-telecoms-and-internet/advice-for-consumers/problems/tackling-nuisance-calls-and-messages

If you are TPS registered and you have received a further call from a company who you have already told not to call you again, please do let us know so that we can investigate this and take action to prevent any further calls.

A note on Telephone Number Spoofing – also known as CLI Spoofing.

As an industry we are aware of an increasing issue with CLI spoofing – this is where a telephone call appears to come from a legitimate telephone number belonging to a reputable telecommunications network but in fact the call has originated from somewhere else. CLI spoofing is often linked with identity theft. Ofcom have some helpful information about CLI spoofing and what you can do to protect yourself.


If you suspect that the number you have been called from has been spoofed, you can contact your service provider, explain that the call appears to come from a spoofed CLI and ask them to trace where the call has really come from. Most service providers have a nuisance calls department for dealing with these type of calls.

If the call you have received is from a spoofed Magrathea Telecommunications number, there will be little we can do to help but please be assured that as an industry we are working hard to combat this growing problem.

1) Have you asked the company not to call you again?

2) Are you TPS registered?

3) Do you have the time of call, number calling and your number?

Still getting calls and wish to make a complaint or get further advice please email details :


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0345 004 0040 or
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Managed National & International Voice Connectivity, Numbering, Number Hosting, Number Porting, Chargeable Number Translation, Emergency Services, Hosted Billing, Callback, Co-Location, International Toll-Free Numbers, Premium Rate Services, Ethernet

Contact us: 5 Commerce Park Brunel Road Theale RG7 4AB

Tel: 0345 004 0040 (+44 118 321 0321) Fax: 0345 004 0041 (+44 118 321 0301)

email us at info@magrathea-telecom.co.uk

Magrathea Telecommunications Limited Registered in England No: 4260485

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