Who called me from 01603 516489?
This UK number is classified as Geographic landline in Norwich. The original Ofcom range holder is Gamma Telecom Holdings Limited (allocated Mar 2004). It has been looked up 1 time on this site, most recently on 21 May 2026.
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Quick facts
Number type
Geographic landline
Area
Norwich
Original range holder
Gamma Telecom Holdings Limited
Risk level
Low
Searches on our checker
1
Last looked up
21 May 2026
International form
+44 1603516489
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About 01603 numbers
01603 516489 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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