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Karel Effern Email & Phone Number
Studying the art of playing saxophone and more.
at
No-company. (Self-employed.)
1 work email found
@zonnet.nl
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Studying the art of playing saxophone and more.
Location
Amsterdam, North Holland, Netherlands
Company size
Who is Karel Effern? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
Karel Effern is listed as Studying the art of playing saxophone and more. at No-company. (Self-employed.), a company with 39894 employees, based in Amsterdam, North Holland, Netherlands. AeroLeads shows a work email signal at zonnet.nl and a matched LinkedIn profile for Karel Effern.
Karel Effern previously worked as Sr. Product Manager B2B at Vodafoneziggo. Karel Effern holds Engineer’S Degree from Hogeschool Haarlem.
Company email context
Email format at No-company. (Self-employed.)
This section adds company-level context without repeating Karel Effern's masked contact details.
*@zonnet.nl
68% confidence
AeroLeads found 1 current-domain work email signal for Karel Effern. Compare company email patterns before reaching out.
Profile bio
About Karel Effern
Karel Effern is a Studying the art of playing saxophone and more. at No-company. (Self-employed.). They possess expertise in telecommunications, voip, ip, mpls, telephony and 13 more skills. They is proficient in French, German and English. Colleagues describe them as "Karel is the guy to get things done! No matter what time of the day, no matter what needs to be done. Karel has a very extensive network and a sound knowledge of the telecom industry. We have worked together on delivering leased lines to small and medium businesses. Karel has a great sense of humor and stays positive when most people would loose it! Highly recommended professional with a human touch."
Listed skills include Telecommunications, Voip, Ip, Mpls, and 14 others.
Current workplace
Karel Effern's current company
Company context helps verify the profile and gives searchers a useful next step.
No-Company. (Self-Employed.)
2 roles
Karel Effern work experience
A career timeline built from the work history available for this profile.
Sr. Product Manager B2B
3 education records
Karel Effern education
Engineer’S Degree
Education record
Ijmond Mts
Nima B B2B
FAQ
Frequently asked questions about Karel Effern
Quick answers generated from the profile data available on this page.
What company does Karel Effern work for?
Karel Effern works for No-company. (Self-employed.).
What is Karel Effern's role at No-company. (Self-employed.)?
Karel Effern is listed as Studying the art of playing saxophone and more. at No-company. (Self-employed.).
What is Karel Effern's email address?
AeroLeads has found 1 work email signal at @zonnet.nl for Karel Effern at No-company. (Self-employed.).
Where is Karel Effern based?
Karel Effern is based in Amsterdam, North Holland, Netherlands while working with No-company. (Self-employed.).
What companies has Karel Effern worked for?
Karel Effern has worked for No-Company. (Self-Employed.) and Vodafoneziggo.
How can I contact Karel Effern?
You can use AeroLeads to view verified contact signals for Karel Effern at No-company. (Self-employed.), including work email, phone, and LinkedIn data when available.
What schools did Karel Effern attend?
Karel Effern holds Engineer’S Degree from Hogeschool Haarlem.
What skills is Karel Effern known for?
Karel Effern is listed with skills including Telecommunications, Voip, Ip, Mpls, Telephony, Unified Communications, Managed Services, and Ethernet.
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