023
This is the primary telephone area code for Portsmouth and surrounding areas in Hampshire, including parts of Southampton.
How to Call Portsmouth from Overseas
- Dial your country's exit code (International Access Code)
- Dial 44 (UK country code)
- Dial 23 (Portsmouth area code without the leading 0)
- Dial the 8-digit local phone number
Example: Calling Portsmouth from the US
011 44 23 5555 1234
Where:
011 = US exit code
44 = UK country code
23 = Portsmouth area code (drop the leading 0)
5555 1234 = 8-digit local Portsmouth phone number
Quick Facts
023
Area Code
+44
Country Code
11-digit
Full Dialing Format
00
UK Exit Code
Portsmouth Area Code Coverage
This area code covers Portsmouth and key surrounding districts:
023 - Central Portsmouth
City centre, Old Portsmouth, Southsea
North Portsmouth
Port Solent, Paulsgrove, Cosham
East Portsmouth
Eastney, Milton, Fratton
West Portsmouth
Wymering, Farlington, Drayton
Havant & Waterlooville
Adjacent towns partially served by 023
South Coast Core
Urban maritime zone under 023 prefix
Major UK Area Codes
Common Exit Codes for Calling UK
When calling Portsmouth from these countries, use these exit codes:
United States
011
Canada
011
Australia
0011
European Union
00
Japan
010
China
00