Newcastle Building Society
This number is listed by Newcastle Building Society on its own website (Mortgages).
- Hours:
- Monday to Friday 9am to 5pm
Source: “Mortgages Mortgages 0345 601 0014 * (Mon to Fri, 9am to 5pm)” (opens in a new tab). Checked 14 October 2026.
This could still be a scam call
Criminals can make their number look like a genuine one (this is called spoofing). If someone calls from this number and asks for money, bank details, a code or passwords, hang up. Then call Newcastle Building Society back on the number on the back of your card, or call 159, which connects you to your bank.