NoCall

+34 917 870 620

Risk level: High

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

Number with prefix 917. Review community reports, risk and comments below before answering or blocking. Browse numbers with prefix 917

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

AI Analysis

Limited information but with repeated behavior patterns. The number +34917870620 has been reported by multiple users for making frequent calls (up to 3 per day) with no response on the other end or hanging up quickly. Some users have blocked the number. One person identified the call as allegedly from Endesa, offering a free quote to install solar panels, but most reports indicate spam or potentially fraudulent behavior (including suspicion of being a tactic to check for someone's presence at home).

Likely purpose: The probable purpose is spam or fraudulent, either to sell services (as in the apparent Endesa case, though it could be impersonation) or to determine someone's presence at a residence.

Most common user complaints

  • Llaman 3 veces al día y no contestan
  • No para de llamar
  • Llaman, descuelgas y no se oye nada... al cabo de unos segundos cuelgan
  • Me llaman 2 o 3 veces todos los días
  • Es para ver si estás en casa son Ladrones
High dangerBlockImpersonation detectedEndesa (posiblemente impersonada)TelecommunicationsMissed call

AI analysis: 22 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 It may contain errors or be out of date, and is not legal advice or a verified accusation against the number's owner.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:
91787
Type:
Landline
Province:
Madrid
Community:
Comunidad de Madrid
Assigned since:
16/03/2000

Recent searches

1 this week

Last 7 days

Community comments

10
Anónimo
13 Jan 2023

Llaman 3 veces al dia y no contestan.los he bloqueado

Anónimo
7 Dec 2022

Es Endesa. Ofrecen presupuesto gratuito para instalar placas fotovoltaicas.

Anónimo
13 Sept 2022

No falla,son tres llamadas diarias,una x la mañana y dos en la tarde. Mi teléfono lo marca cono Fraude. A parte de eso,yo lo he blokeado

Anónimo
31 Aug 2022

Me llaman 2 o 3 veces todos los días!!

Anónimo
11 Aug 2022

Es para ver si estás en casa son Ladrones

Anónimo
3 Jun 2022

No para de llamar

Anónimo
24 May 2022

Llaman, descuelgas y no se oye nada... al cabo de unos segundos cuelgan

Anónimo
29 Mar 2022

Me han llamado 3 veces en un día, el teléfono lo marca como SPAM la primera vez he cogido pero no contestaba nadie y he colgado.

Anónimo
5 Mar 2022

Llaman casi todos los días y te cuelgan.

Anónimo
26 Feb 2022

Llaman al fijo y cuelgan a diario.

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Signal summary for +34 917 870 620

+34 917 870 620 belongs to the 917 prefix and is classified as Scam. This page combines 1 approved report and 10 public comments to explain the risk level.

Frequently asked questions

Who calls from +34 917 870 620?
+34 917 870 620 is a phone number with the 917 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 +34 917 870 620 a spam number?
According to the community, +34 917 870 620 has 1 report, which suggests it is likely spam. Check the risk score and comments for details.
Is it safe to call +34 917 870 620 back?
If you don't recognise the number and it has negative reports, it's best not to call +34 917 870 620 back. Avoid sharing personal or banking details with unknown numbers.
How can I block +34 917 870 620?
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 +34 917 870 620.
Where can I report a suspicious call?
You can report +34 917 870 620 directly on this page using the report button. Your contribution helps other users identify unwanted calls.