023 Phone Numbers — Southampton/Portsmouth
023 is the geographic telephone area code for Southampton/Portsmouth and surrounding areas in Hampshire, England. Below you will find community reports for numbers beginning 023, along with information about who called and whether the number has been flagged as a nuisance caller.
About 023 numbers
| Prefix | 023 |
| Area | Southampton/Portsmouth |
| Region | Hampshire |
| Country | England |
| Number type | Geographic |
| Description | Geographic — associated with a specific location in the UK |
| UK format | 023 xxxx xxxx |
| International | +44 23 xxxx xxxx |
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Caller ID can be spoofed
The area code 023 appearing on your phone does not guarantee the caller is actually in Southampton/Portsmouth. Scammers routinely fake (spoof) caller ID to display a local or trusted number. Always verify the identity of any unexpected caller independently before taking action.
Reported numbers starting 023 (3 found)
🛡️ Staying safe with unexpected calls
- Never share passwords, PINs or one-time codes over the phone — your bank, HMRC, or any legitimate organisation will never ask for these.
- Never send money based on a request from an unexpected caller, even if they claim to be from your bank or the police.
- Hang up and call back using the official number from the organisation's website — not the number that called you and not a number they give you during the call.
- Take your time — genuine callers will not pressure you to make immediate decisions or payments.
- Report scam calls to Action Fraud on 0300 123 2040 or at actionfraud.police.uk, and to Ofcom by texting the number to 7726 (free).