Cancel your Sunrise subscription by mail
Sunrise deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. Our database has Sunrise's mailing address in Zurich, Switzerland.
Let Postbye cancel Sunrise for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Money-back guarantee within 10 business days.
Postbye is not affiliated with Sunrise.
- 4.8 from 2,931 reviews
- 3 Sunrise cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Sunrise by mail
Find your account details
Sunrise will look your account up from what the letter says, so check the account number, the phone number or service address being cancelled and the name on the account first.
Write the cancellation request
Sunrise is based in Switzerland, so the letter goes out in German, built from our German template. Subject line: “Betreff: Kündigungsanfrage – [your name]”. It asks for the subscription to end, for further charges to stop and for written confirmation.
Mail it with tracking
Address the envelope to Sunrise, Zurich, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
Keep the delivery receipt
The receipt dates your request. Look at your next statement for any Sunrise charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Sunrise cancellation letter goes
The mailing address we hold for Sunrise is Thurgauerstrasse 101B, 8050 Zurich, Switzerland.
Copy the postal code 8050 exactly: it is what routes the letter to Zurich, Switzerland.
The database also lists Thurgauerstrasse 101b, 8152 Opfikon, Switzerland for Sunrise. Use the first address above unless your agreement names this one.
The letter greets the reader with “Sehr geehrte Damen und Herren,”; your own details sit under the labels Kontoinhaber, Hinterlegte Rechnungsadresse and Hinterlegte E-Mail-Adresse.
Prefer to write it yourself? Use our letter template
Every address we hold for Sunrise, with the envelope wording
Before you cancel Sunrise, check these
- Ask for a final bill in writing and return any rented equipment by tracked mail.
- Check for an early-termination fee or a remaining equipment balance before the cancellation date.
- If you are moving to another provider, keep the line active until the new service works, then cancel.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Sunrise for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Cancelling a phone or internet plan
Phone and internet providers tie cancellation to contracts, equipment balances and notice periods, so the request should name the exact line or service and ask for a final bill in writing.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
Sunrise cancellation at a glance
- How Sunrise accepts cancellations
- By mailed letter
- Mailing address on file
- Sunrise Thurgauerstrasse 101B 8050 Zurich Switzerland
- Second address on file
- Sunrise Thurgauerstrasse 101b 8152 Opfikon Switzerland
- Country
- Switzerland
- Letter language
- German (template de)
- Category (from the company name)
- Phone & internet
- Added to the database
- June 19, 2026
- Data last checked
