High risk
023 82011259
AI Summary
Based on 18 community reports
Calls from this Southampton and Portsmouth-based number, carried by Gamma Telecom, are linked to energy supplier matters about switching meters. Some reports describe legitimate Utilita interactions, including confirmations from the app. However, the majority describe this as high risk of scam, with automated calls and voicemails pushing a switch when users are already with Utilita. The spam score is 94/100. If you’re unsure, do not engage and contact Utilita via official channels or your account app, then block the number if needed.
Written automatically by AI from the community reports on this page. It does not set the spam score, and it can make mistakes, so read the reports below as well.
Pattern detected: Energy supplier scam
Several community reports about this number describe the same experience.
Multiple reports mention a caller claiming to be from an energy supplier. This reported pattern suggests the displayed number may be used in an energy supplier impersonation attempt.
Based on screened community reports only. Caller ID can be spoofed, so reports may describe misuse of the displayed number rather than the registered number owner.
Common details reported
Details that appear in two or more community reports about this number.
- Reported scam type
- Energy supplier scam
- Recommended action
- Contact your energy supplier directly using the number on a recent bill before acting on any claim.
18 moderated reports
Every report on this page was screened automatically and then approved by a moderator before being published and counted towards the score. How moderation works
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
18 totalSubmitted by users and shown as written, so wording and spelling are their own. Each report is screened and approved by the CallerCheck Moderation Team before it appears.
Utilita about switching my gas meter. Can confirm I have received a confirmation text from Utilita (same number I get confirmation codes from for the app). Guy was kind and booked in the install with no issues.
called to say switch to utilita. I am already with utilita.. blocked .
Getting lots of calls each day from them, saying they're utilita and want me to change, even though I'm with them now 🤣🤣 so its a scam and they keep ringing so I've blocked them now
Same as before. Keeps calling non stop, blocked them now but still leaving voicemails saying its utilita and about switching. I'm already with utilita so it cant be them. Number has been reported
Utilita called today about the benefits of changing my home energy supply. I'm already a Utilita customer. They were nice to offer help me switch to a cheaper company, right? 😂🤣😂
They said it was utilita but it wasn't.
This number just tried to call me as well, I didn't pick up since it showed as a suspected scam. It's terrible how they try to scam people, especially the elderly who might answer and share personal details.
Said he was calling from utilita wanting to change my meter. Really loud call centre. Because I'm a utilita customer, they should have all my details, but they didn't, so I hung up without saying anything.
Scam saying they were from Utilita, pre-recorded message will be left, funniest bit is when you can hear the scammers talking before the recorded message plays. Do not engage
Said they were utilita left voicemail wanting me to change suppliers why would a company want you to leave? Blocked
Automated voice message saying it was Utilita,
Scam call from an energy supplier, they have tried really hard in the Portsmouth area!!!
Left voicemails saying they were from utilita, I called utilita directly and they said it was a scam.
Someone called me today saying they were from ulita. The phone number was 02382011259.
They asked for me by my name before hanging up. A scam call or something dodgey
Called about smart meter on house phone
Just silence, it keeps ringing even when blocked
A woman called, said she was from Utilita, and said my meter needed replacing. I told her I would contact Utilita myself. She swore and put the phone down.
Share Your Experience
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How this page was checked
This profile is built from community reports, lookup activity and CallerCheck risk signals. It is not written by hand for this number, so the details below show who checks what and when it last changed. The risk score is based on community reports about calls and texts from this displayed number. It is not based on official records of who owns the number.
- Reports moderated by
- CallerCheck Moderation Team
- Safety guidance reviewed by
- CallerCheck Editorial Team
- AI summary
- Generated from approved community reports only
- Last report received
- 07 Aug 2026
- Last reviewed
- 08 Aug 2026
- AI summary last generated
- 03 Sep 2026
- Last materially updated
- 03 Sep 2026
What do these dates mean?
Report and lookup dates come from user activity. Review dates show when CallerCheck last checked reports, safety guidance, or risk signals. We use “last materially updated” only for meaningful page changes, not cosmetic changes.
- First seen:
- when this number first appeared on CallerCheck, through its first lookup or report.
- Last report received:
- the most recent approved community report for this number.
- Last lookup:
- the most recent time a user searched for this number.
- AI summary last generated:
- when the AI summary on this page was last rewritten from the approved community reports.
- Last reviewed:
- the most recent human moderation or editorial review, where available.
- Last materially updated:
- the most recent meaningful change to this page: a new approved report, a risk score change, an AI summary regeneration, a moderation action, or a claim or dispute change. It does not move for cosmetic changes.
Sources and safety guidance
- Community reports about this number, screened before they are published or counted. How moderation works
- Ofcom numbering allocation data for the network this range belongs to
- Safety guidance aligned with UK scam-reporting advice, such as Action Fraud guidance, forwarding spam texts to 7726, and the 159 banking helpline where relevant. Where to report a nuisance call
Important limits
Caller ID can be spoofed, so a high risk rating means people have reported suspicious activity involving this displayed number. It does not prove that the registered owner of the number made the call or text. Community reports describe individual experiences and are not official confirmation of a scam. How caller ID spoofing works.
Own or manage this number? If this number belongs to you or your organisation, you can claim or dispute this profile. We review claims, check supporting information, and may update the page if reports appear to involve spoofing, mistaken identity, or outdated information. Claim or dispute this number
About 023 8201 1259
What type of number is 023 8201 1259?
The phone number 023 82011259 (also written as +44 23 8201 1259) is a UK landline number originating from the Southampton & Portsmouth area in Hampshire . Calls to this number are charged at standard UK landline rates, usually included in call packages.
Is 023 8201 1259 safe to answer?
Based on 18 community reports, this number has been frequently reported as spam or a potential scam. The current risk score is 94% with 17 reports marking it as spam and 1 report confirming it as safe .
Exercise extreme caution if you receive a call from this number. Do not share personal or financial information.
What this data can and cannot tell you
Everything on this page comes from reports submitted by members of the public about calls and texts that showed this number. Caller ID can be spoofed, so the person contacting you may not be the genuine holder of the number, and a legitimate number can be misused. Before paying anything or acting on a message, check the claim with the organisation involved using contact details from its official website or letters, never the ones in the message itself.
More on nuisance calls
Safety score
18 reportsHow this score was worked out
Each report rates the number as safe, unknown, suspicious or spam. The score blends those ratings, giving more weight to the more serious ones, and a number with only a few reports is held closer to neutral until more arrive. Feedback votes on reports can also influence it slightly. Scores of 70% and above count as high risk, 40% to 69% as medium, and below 40% as low. More about spam scores
Why this number is rated High Risk
This number is rated High Risk because 17 of 18 reports classify it as spam or suspicious, and several reports describe the same energy supplier scam. 1 report describe a legitimate call.
Ratings reflect screened community reports, not official records. How the spam score works.
Confidence: High
Based on 18 community reports with repeated matching details. Confidence describes how much report evidence sits behind this page, and is separate from the spam score.
Caller ID can be spoofed, so reports may describe misuse of the displayed number rather than the registered number owner.
Details
- Tel Number
- 023 8201 1259
- Country
- 🇬🇧 United Kingdom
- Network
- Gamma Telecom Holdings
- Type
- Geographic
- Coverage
- Southampton & Portsmouth and the surrounding area
- Cost to call
- Standard landline rate
- First Seen
- 19 Feb 2026
Network shows the operator this number range is allocated to in Ofcom numbering data, so the caller may be on a different network if the number was moved or spoofed. First Seen is the date this number first appeared on CallerCheck.
What To Do Now
Steps that fit the energy supplier scam pattern reporters describe.
-
1
Do not share personal or payment details
Do not give personal information, card details or security codes to an unexpected caller or message.
-
2
Verify independently
If the caller claimed to be an organisation, find its official contact details yourself and check the claim directly.
-
3
Block and report the number
Stop further contact from 023 82011259 and forward scam texts to 7726. How to block a number on any phone.
Already paid or shared bank details? Call your bank straight away using the number on the back of your card, or dial 159 to be connected to your bank securely.
Call Types
Breakdown of reported call reasons. Larger segments and bars represent a bigger share of reports.
Location
Southampton & Portsmouth, United Kingdom
This number originates from the Southampton & Portsmouth area code region. The map shows the general geographic area, not an exact location.
Protection Guides
How to Block This Number
Clear instructions for iPhone, Android, and landlines
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Is this your number?
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We review claims carefully and may keep warnings visible where community reports still indicate risk.