Calls from 0901 502 XXXX
Block 0901 502 XXXX is allocated by Ofcom to Colt Technology, on the UK Premium rate exchange (allocated 2004).
0901 502 XXXX is part of the UK premium-rate / service-charge range. Calls to numbers in this range — such as 0901 502 1234 — incur a service charge in addition to your provider's standard access charge. Ofcom and the regulator PSA cap these charges and require the service charge to be disclosed up-front in any advertising.
This block — 0901 502 XXXX — was allocated by Ofcom to Colt Technology in 2004. Colt Technology either operates the numbers directly or sub-allocates them to resellers and downstream carriers, which is why a single 0901 502 XXXX prefix can be used by many different organisations. You can verify any allocation against Ofcom's National Telephone Numbering Plan, which is updated weekly.
A small share of 0901 502 XXXX traffic is automated — recorded-voice ('robocalls') from political polls, marketing pitches, or scams. Under UK rules, you must have opted in to receive automated marketing calls. If you're getting persistent automated calls from a UK number, report them to the ICO via ico.org.uk.
If a 0901 502 XXXX number called you and you're not sure who it was, the safest steps are: don't return the call until you've verified it (search the full number online first), don't share personal or financial details, and register the number with the Telephone Preference Service (TPS) if it's a marketing call. Persistent unwanted calls can be reported to Ofcom and the ICO. To block a specific number on most UK mobiles and landlines, you can also enable network-level call screening through your provider.
FAQs about 0901 502 XXXX
Is 0901 502 XXXX a real UK phone number?
Yes. 0901 502 XXXX is part of an Ofcom-allocated UK number block — any number starting with that prefix is a real, dialable UK number assigned by Ofcom to Colt Technology for use on the UK public telephone network.
Who owns the 0901 502 XXXX number block?
0901 502 XXXX is currently allocated to Colt Technology in Ofcom's National Telephone Numbering Plan. The allocated carrier may operate the numbers directly or sub-allocate them to downstream resellers — both arrangements are normal under UK telecoms rules.
Where is a 0901 502 XXXX number based?
0901 502 XXXX is associated with UK Premium rate. UK geographic numbers historically indicated the location of the line, although VoIP services and number-portability rules mean a 0901 502 XXXX number can technically be used anywhere a CP routes it. For most UK landlines the geographic match still holds.
How do I block calls from 0901 502 XXXX?
On most UK smartphones, open the recent-calls list, tap the number, and choose 'Block this caller'. UK landlines from BT, Sky, TalkTalk and Virgin Media include free 'BT Call Protect'-style screening you can enable in your provider's app. You can also register your number with the Telephone Preference Service (TPS) at tpsonline.org.uk to opt out of legitimate UK marketing calls.
Other blocks in 0901
Try a different block within the same UK area code:
