0300 Phone Numbers — National rate
0300 is a UK telephone prefix associated with National rate. Community reports for numbers beginning 0300 are listed below.
About 0300 numbers
| Prefix | 0300 |
| Area | National rate |
| Country | England |
| Number type | Non-geographic |
| Description | Non-geographic national rate |
| UK format | 0300 xxx xxxx |
| International | +44 300 xxx xxxx |
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Caller ID can be spoofed
The area code 0300 appearing on your phone does not guarantee the caller is actually in National rate. 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 0300
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No reports yet for 0300 numbers
No 0300 numbers have been reported yet. If you have received a call from a number starting 0300, you can search for it directly or be the first to submit a report.
🛡️ 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).