Calls from 01636 345 XXX — Newark
Block 01636 345 XXX is allocated by Ofcom to INTELLIGENT EXCHANGES LIMITED, on the Newark exchange (allocated 2026).
01636 345 XXX is a number block in Newark, in the historic county of Nottinghamshire, an area with a population of approximately 28,000. Standard landlines in this area use the format 01636 345123, with the first part being the dialling code and the rest being the local number.
This block — 01636 345 XXX — was allocated by Ofcom to INTELLIGENT EXCHANGES LIMITED in 2026. INTELLIGENT EXCHANGES LIMITED either operates the numbers directly or sub-allocates them to resellers and downstream carriers, which is why a single 01636 345 XXX 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 common UK scam pattern uses blocks like 01636 345 XXX for 'tech support' calls: a caller claims to be from Microsoft, BT, or your antivirus provider, and tries to get you to install remote-access software. No legitimate UK tech-support team will phone you out of the blue and ask to take control of your computer.
If a 01636 345 XXX 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 01636 345 XXX
Is 01636 345 XXX a real UK phone number?
Yes. 01636 345 XXX 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 INTELLIGENT EXCHANGES LIMITED for use on the UK public telephone network.
Who owns the 01636 345 XXX number block?
01636 345 XXX is currently allocated to INTELLIGENT EXCHANGES LIMITED 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 01636 345 XXX number based?
01636 345 XXX is associated with Newark. UK geographic numbers historically indicated the location of the line, although VoIP services and number-portability rules mean a 01636 345 XXX 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 01636 345 XXX?
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 01636
Try a different block within the same UK area code:
