Who called me from 023 9438 1738?
This UK number is classified as Geographic landline in Southampton / Portsmouth. The original Ofcom range holder is Colt Technology Services (allocated May 2020). It has been looked up 3 times on this site, most recently on 23 May 2026.
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Quick facts
Number type
Geographic landline
Area
Southampton / Portsmouth
Original range holder
Colt Technology Services
Risk level
Low
Searches on our checker
3
Last looked up
23 May 2026
International form
+44 2394381738
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About 023 numbers
023 9438 1738 is one of thousands of 023 numbers allocated to Southampton / Portsmouth by Ofcom. See the full 023 area-code overview for top searched numbers, operators serving Southampton / Portsmouth, and common scam patterns.
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