{"id":473,"date":"2021-02-26T12:00:42","date_gmt":"2021-02-26T10:00:42","guid":{"rendered":"http:\/\/yhteisverkko.fi\/?page_id=473"},"modified":"2026-06-29T12:59:43","modified_gmt":"2026-06-29T09:59:43","slug":"contact-details","status":"publish","type":"page","link":"https:\/\/yhteisverkko.fi\/en\/contact-details\/","title":{"rendered":"Contact details"},"content":{"rendered":"

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Finnish Shared Network Ltd.<\/strong>
\n(in Finnish: Suomen Yhteisverkko Oy)
\nBusiness ID 2567171-6<\/p>\n

Invoicing address<\/strong>
\nSuomen Yhteisverkko Oy
\nPL 400
\n00101 Helsinki, Finland<\/p>\n

Electronic invoices (OVT): 003725671716
\nIntermediator: 003721291126
\nOperator: Maventa (DABAFIHH)<\/p>\n

Office address (no invoices)<\/strong>
\nIt\u00e4merenkatu 1
\n00180 Helsinki, Finland<\/td>\n

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CEO<\/strong>
\nSami Siiki
\nTel: +358 400 579 500
\nE-mail: sami.siiki(a)yhteisverkko.fi<\/p>\n

Financial and Administrative Director
\n<\/strong>Lauri Ahokallio
\nE-mail: lauri.ahokallio(a)yhteisverkko.fi<\/p>\n

Radio Network Manager<\/strong>
\nMikko Keskikastari
\nTel: +358 40 745 9165
\nE-mail: mikko.keskikastari(a)yhteisverkko.fi<\/p>\n

Implementation Manager
\n<\/strong>Juha Truhponen
\nTel: +358 44 7547167
\nE-mail: juha.truhponen(a)yhteisverkko.fi<\/p>\n

Implementation Manager
\n<\/strong>Petri Syrj\u00e4nen
\nTel: +358 44 7143792
\nE-mail: petri.syrjanen(a)yhteisverkko.fi<\/p>\n

Operations & Maintenance Manager
\n<\/strong>Antti Maarela
\nTel: +358 44 7585770
\nE-mail: antti.maarela(a)yhteisverkko.fi<\/p>\n

Co-location management<\/b>
\nTuukka Karvonen
\nTel: +358 44\u00a04252222
\nE-mail: tuukka.karvonen(a)yhteisverkko.fi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Finnish Shared Network Ltd Board of Directors
\n<\/strong><\/p>\n

Heli Frosterus, vice chair
\nRegulatory Manager, DNA Oyj<\/p>\n

Timo Hietalahti, board member
\nDirector, Network Engineering, Telia Finland Oyj<\/p>\n

Jarkko Laari, board member
\nVice President, Radio Netrorks, DNA Oyj<\/p>\n

Irina Kitinprami, chair
\nDirector, Security, Telia Finland Oyj<\/p>\n

Aki Keso, deputy member
\nFinance Business Partner, DNA Oyj<\/p>\n

Aleksi Vartio, deputy member
\nDirector, Finance, Telia Finland Oyj<\/p>\n

The shared network owners will offer strategic leadership during network construction, as informed by feedback from their own end customers. Shared Network Ltd\u2019s operations and decision-making processes will be governed by the consensus principle. DNA Oyj holds 49 per cent and Telia Finland Oyj 51 per cent of the Finnish Shared Network Ltd shares.<\/p>\n

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Contact Us<\/strong><\/p>\n

In all questions regarding customer service or technical features of subscriptions (eg. coverage), please contact the customer service of your operator,\u00a0Telia or DNA.<\/p>\n