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+34 873 406 505

Risk level: High

Who is this? Spam, telemarketing or a legitimate call? Community reports in Spain.

Number with prefix 873. Review community reports, risk and comments below before answering or blocking. Browse numbers with prefix 873

High
Risk level
Scam
Category
1
Spam reports
18 Mar 2026
Last report

AI Analysis

Limited information but with scam indicators. The number +34873406505 has been reported by several users for making fraudulent calls, posing as Naturgy employees. The callers inform potential victims of an alleged breach of contract by their electricity provider, offering a reduction in the electricity price. Users warn that it is not a legitimate Naturgy call and may be a scam.

Likely purpose: Phone scam, possibly to obtain personal or financial information from victims.

Most common user complaints

  • Me han llamado diciendo que son de Naturgy
  • Ofrecen reducción de precio de electricidad
  • No conozco a nadie con ese número
High dangerBlockImpersonation detectedNaturgy (utilizada fraudulentamente)EnergyMissed call

AI analysis: 23 Jul 2026

Information based on community reports and automated analysis. It may contain errors or be out of date, and is not legal advice or a verified accusation against the number's owner.

CT

Colt Technology Services

COLT TECHNOLOGY SERVICES, S.A. UNIPERSONAL

Country:
ESSpain
Prefix:
87340
Type:
Landline
Assigned since:
06/09/2007

Recent searches

8 this week

Last 7 days

Community comments

3
Anónimo
27 Apr 2026

No conozco a nadie con ese número

Anónimo
21 Mar 2026

Me han llamado en enero, febrero y marzo diciendo que son de Naturgy y que la empresa que me suministra electricidad en mi casa ha incumplido contrato con ellos y que me van a bajar el precio de 0,29 a 0,22 con el nombre de "no le entendí el nombre porque habla como si tuviera un polvorón en la boca" y que la factura me llegará con el mismo color azul pero diferente nombre. CUIDADO que son estafadores. No tengo factura de papel, no es del color que dicen ellos ni nada. He visto en otro sitio, qu

Anónimo
10 Mar 2023

Me han llamado en enero, febrero y marzo diciendo que son de Naturgy y que la empresa que me suministra electricidad en mi casa ha incumplido contrato con ellos y que me van a bajar el precio de 0,29 a 0,22 con el nombre de "no le entendí el nombre porque habla como si tuviera un polvorón en la boca" y que la factura me llegará con el mismo color azul pero diferente nombre. CUIDADO que son estafadores. No tengo factura de papel, no es del color que dicen ellos ni nada. He visto en otro sitio, que los números que comienzan por 87340 pertenecen a una empresa llamada COLT que debe ser un call center, porque tienen números asociados. Supuestamente Madrid y BCN, seguro que mas sitios.

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Signal summary for +34 873 406 505

+34 873 406 505 belongs to the 873 prefix and is classified as Scam. This page combines 1 approved report and 3 public comments to explain the risk level.

Frequently asked questions

Who calls from +34 873 406 505?
+34 873 406 505 is a phone number with the 873 prefix in Spain. It has been reported 1 time by the community as a possible unwanted call. Check the comments to find out who might be behind this call.
Is +34 873 406 505 a spam number?
According to the community, +34 873 406 505 has 1 report, which suggests it is likely spam. Check the risk score and comments for details.
Is it safe to call +34 873 406 505 back?
If you don't recognise the number and it has negative reports, it's best not to call +34 873 406 505 back. Avoid sharing personal or banking details with unknown numbers.
How can I block +34 873 406 505?
On iPhone, go to Recents in the Phone app, tap the (i) next to the number and choose 'Block this Caller'. On Android, long-press the number in your call history and select 'Block number'. You can also use the NoCall app to automatically block calls like +34 873 406 505.
Where can I report a suspicious call?
You can report +34 873 406 505 directly on this page using the report button. Your contribution helps other users identify unwanted calls.