01603 517077
Also shown as:
- 01603 517077
- +44 1603 517077
AI Summary
Based on 2 community reports
This Norwich-based number appears to be involved in suspicious cold calling activities. Reports describe callers who refuse to properly identify themselves or their purpose, with one claiming to represent National Grid while requesting employee mobile numbers without explanation. The callers demonstrate evasive behavior, hanging up when challenged about their identity or intentions.
The refusal to identify themselves and requests for personal contact information are classic warning signs of potential data harvesting or social engineering attempts. Legitimate companies will always clearly explain who they are and why they're calling, especially when requesting sensitive information.
If you receive calls from this number, ask for full identification including the caller's name, company, and specific reason for calling. If they can't provide this information or become evasive, it's best to hang up and contact the organization they claim to represent directly using official contact details.
2 verified reports
Cumulative spam score based on all reports up to each month. Higher percentage means higher reported scam risk. Cumulative spam score based on all reports up to each week. Higher percentage means higher reported scam risk. Cumulative spam score based on all reports up to each day. Higher percentage means higher reported scam risk.
Most helpful reports
2 totalKept saying my name but didn’t introduce themself, then hung up when I asked who they were.
Said he was calling from National Grid, wanting an employees mobile number but wouldn't say why before hanging up
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About 01603 517077
What type of number is 01603 517077?
The phone number 01603 517077 (also written as +44 1603 517077) is a UK landline number originating from the Norwich area in Norfolk . Calls to this number are charged at standard UK landline rates, usually included in call packages.
Is 01603 517077 safe to answer?
Based on 2 community reports, this number has received mixed reports from our community. The current risk score is 64% with 1 report marking it as spam .
Be cautious when answering calls from this number. Verify the caller's identity before sharing any information.
More on nuisance calls
Safety Score
Details
- Tel Number
- 01603 517077
- Country
- 🇬🇧 United Kingdom
- Network
- Gamma Telecom Holdings
- Area
- Norwich
- Type
- Geographic
- First Seen
- 29 Jan 2026
Protection Guides
Location
Norwich, United Kingdom
This number originates from the Norwich area code region. The map shows the general geographic area, not an exact location.
Call Types
Breakdown of reported call reasons. Larger segments and bars represent a bigger share of reports.
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