Portsmouth business phone numbers (023)
Portsmouth is a city in Hampshire, England (local authority: City of Portsmouth), population 248,440 (2016). Its landline dialling code is 023, the Southampton exchange area, which Portsmouth shares with 9 other towns such as Southsea and Gosport. No 023 numbers were in stock on 20 October 2026; the catalogue refreshes daily.
Portsmouth at a glance
- Dialling code
- 023
- Numbers in stock
- 0 (live, 20 October 2026)
- Local authority
- City of Portsmouth
- County
- Hampshire
- Nation / region
- South East England, England
- Status
- City
- Population
- 248,440 (2016)
- Coordinates
- 50.806, -1.087
Place data: Wikidata Q72259 (retrieved 26 September 2026). Codes: Ofcom geographic area codes. Stock: Silux Call number catalogue.
Other towns on 023
- Southsea 2.6 km
- Gosport 2.9 km
- Southwick 7.9 km
- Lee-on-the-Solent 8.1 km
- Havant 9 km
- Waterlooville 9.2 km
- Southampton 24.9 km
- Eastleigh 25.7 km
- Totton and Eling 31 km
Towns near Portsmouth
| Town | Distance | Code | Area |
|---|---|---|---|
| Southsea | 2.6 km | 023 | Hampshire |
| Gosport | 2.9 km | 023 | Hampshire |
| Cosham | 4.3 km | — | Hampshire |
| Portchester | 4.6 km | — | Hampshire |
| Southwick | 7.9 km | 023 | Hampshire |
| Lee-on-the-Solent | 8.1 km | 023 | Hampshire |
Portsmouth: questions answered
What is the dialling code for Portsmouth?
Portsmouth uses 023 (Southampton). From outside the UK dial +44 23 then the local number.
How many numbers on 023 can I get from Silux Call?
None were in stock on 20 October 2026. Check the numbers page for the latest stock.
Which other towns use 023?
Nearest first: Southsea (2.6 km), Gosport (2.9 km), Southwick (7.9 km), Lee-on-the-Solent (8.1 km), Havant (9 km), Waterlooville (9.2 km), and 3 more.
Which towns are near Portsmouth?
Southsea (2.6 km, 023), Gosport (2.9 km, 023), Cosham (4.3 km), Portchester (4.6 km), Southwick (7.9 km, 023).
Can I move my existing Portsmouth number to Silux Call?
Yes, if it is a UK geographic number. Porting is free on every paid plan, is handled by our team, and typically takes approximately 14 working days from submission.
Plans
Per user a month, ex VAT: Entry £4.75, Plus £8.95 (99p for 2 months), Growth £9.95, Pro £14.95. 14-day Free Trial, no card.