TSP Name Department or Contact Person E-Mail Phone
BeeOne Communications SA customer service li(at)beeone.ch 0800 77 55 00
CKW Fiber Services AG customer service voice(at)ckwfiber.ch +41 41 249 6060
COLT Technology Services AG Helpdesk TechnicalSupport.CH(at)colt.net 0800 560 560 / 058 560 17 20
Ephone Schweiz GmbH Support support(at)ephone.ch +36 1 550 7777
Improware AG Customer Care support(at)breitband.ch -
Internet Group GmbH Customer Care info(at)internetgroup.ch 0842 800 800
Mitto AG Support Team support(at)mitto.ch +41 33 224 0880
Mobile4business Hotline support(at)mobile4business.ch +41 33 224 0880
Netplus Telecom telecom(at)netplus.pro +41 27 565 7560
Salt Mobile SA Customer Care info(at)salt.ch 0800 700 700
Salt (Liechtenstein) AG Kundenhotline von 7acht info(at)7acht.li +423 787 2248
Smartphone SA Customer Care info(at)smartphone.ch  
sms.at mobile internet services GmbH www.websms.com support(at)websms.com 0800 400-4114
Sunrise Communications AG Investigation li@sunrise.net 076 777 99 33
Supranet AG Kundendiensdt info@supra.net +423 377 4443
Swisscom (Schweiz) AG Contact Center, 3050 Bern ContactCenter.Fixnet(at)swisscom.com 0800 800 800
Switzernet Sàrl Support support@switzernet.com +41 22 550 5500
Telco Pack SA Support support@telcopack.ch +41 21 647 3075
Telecom LI Customer Care/a +423 2377400  
upc Schweiz GmbH Call Center (mobile) n/a 0800 22 0800
Vast New Telecom SA Call Centre customers@vast-new-telecom.com +337 69884111
Verizon Switzerland AG Reception reception-zurich(at)ch.verizonbusiness.com 044 580 80 11
Voxphone AG Kundendienst kundendienst(at)voxphone.net +423 340 0101
VTX Services SA Customer Care info(at)smartphone.ch  
Wide Technology Partners AG Servicesdesk servicedesk(at)wide.ch +41 41 709 0818