01603 at a glance
- Type
- Geographic (landline area code)
- Region
- Norfolk
- Country
- United Kingdom (+44)
- Number format
- 01603 XXXXXX (area code + 6-digit local number)
- From abroad
- +44 1603
- Cost to call
- Charged as a standard UK landline call; usually included in landline and mobile call bundles.
01603 is the area code for Norwich, the cathedral city that is home to Norfolk County Council, and surrounding parts of Norfolk. Norwich has a large insurance industry, the University of East Anglia and the Norfolk and Norwich University Hospital. A call from an 01603 number could come from the county or city council, an insurer, NHS services, a GP surgery, the university or a local business. Geographic numbers can be ported to any UK provider and used over VoIP anywhere, and caller ID can be faked, so the code alone is not proof of a caller's identity.
Who called me from 01603?
The prefix tells you where the line was originally registered (Norwich), but not who is behind it. Numbers can be ported between networks and caller ID can be spoofed, so a familiar code is no guarantee. Search the full number to see its current carrier, line type and whether other people have reported it. Read our UK phone number guide for mobile prefixes, networks and the scams currently doing the rounds.