Receiving Unwanted Calls

Receiving unwanted calls?
Here's what should you do...

39D Services has millions of telephone numbers built across its network and takes a very dim view on nuisance calls.
Whether a 39D Services customer or not, if you have received unwanted calls and have reason to believe that the calls are connected to 39D Services then please action the following.


You think 39D Services is calling you?

As a Communications Provider, we do unfortunately receive complaints that we are making nuisance calls. This is facilitated by the misinformation of looking up who the 'Range-Holder' is for a given telephone number. 39D Services is almost certainly not calling you and rather a website has told you that the number belongs to 39D Services, meaning it is part of a block allocated to 39D Services from Ofcom, the regulator.

If one of our customers has been genuinely allocated a questionable number then we will, of course, look to take action. This does not detract from reporting the call as suggested above.

From 1st October 2018 Telecommunications companies can trace calls through originating networks via the Network ID for a call.

39D Services will not provide details of calls or customers under any circumstances, unless requested to do so by lawful process and the relevant authority.

How Companies and Agencies investigate unwanted calls and what happens next?

Following your complaint, your telecommunications provider, Police and/or ICO etc have established industry procedures and will usually get in touch with the range-holder and investigate. If we’re the range-holder and the call is genuinely from someone on our network we will take action but in the majority of cases the caller ID of the call has been falsified and the calls did not originate with one of our customers. Although 39D Services is not an investigatory, regulatory or enforcement entity, please feel free to inform us with specific details of your concerns as we may be able to assist.

The Range Holder is the company to which Ofcom assigned telephone numbers to and telephone numbers must fall into one of the four categories below:

  • Numbers where 39D Services IS the range holder and the numbers are active on the 39D Services network.
  • Numbers where 39D Services IS NOT the range holder but the numbers are ported to the 39D Services network (from BT, Virgin, Sky etc..)
  • Numbers where 39D Services IS the range holder but the numbers are ported away to another network (BT, Virgin, Sky etc..)
  • Numbers where 39D Services IS the range holder but the numbers are not in service (not allocated to a customer).

How 39D Services can help protect you from Nuisance Callers:
  • If you are a 39D Services customer and you are receiving Nuisance calls then you can protect yourself by logging into your control panel and enabling a Blacklist to screen inbound calls.
  • If the calls are during the night then a 'Time Profile' may help by rejecting calls through the night.
  • If the number is 'Anonymous' then enabling the 'Reject Anonymous Calls' feature may also help.
  • Screening calls for malformed or obviously spoofed Presentation Numbers.


CALL OUR TEAM ON 01279800039

Our mailing address is:
39D Services
Runway House
North Weald Bassett
Epping, Essex CM16 6HR
United Kingdom

Add us to your address book