Who called me from 01603 363070?
This UK number is classified as Geographic landline in Norwich. The original Ofcom range holder is Colt Technology Services (allocated Nov 2020). It has been looked up 1 time on this site, most recently on 20 May 2026.
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Quick facts
Number type
Geographic landline
Area
Norwich
Original range holder
Colt Technology Services
Risk level
Low
Searches on our checker
1
Last looked up
20 May 2026
International form
+44 1603363070
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About 01603 numbers
01603 363070 is one of thousands of 01603 numbers allocated to Norwich by Ofcom. See the full 01603 area-code overview for top searched numbers, operators serving Norwich, and common scam patterns.
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