Switching mobile contracts: keep your number & save
Number porting, notice period and the best time to switch — step by step.
Keep your number — almost always possible
You can port your number to the new provider. The new provider applies — you only need your current contract details.
Porting usually takes one to two weeks. Plan a short overlap or use a temporary SIM if needed.
When is switching worth it?
After the minimum term you are flexible. Many switch yearly and use new-customer offers — similar to electricity.
With a phone bundle: factor in remaining device payments. Sometimes SIM-only plus a used phone is cheaper than a new bundle.
Practical tips
- Cancel by registered mail or online with confirmation.
- Compare new-customer bonus and term of the new plan.
- Deactivate old SIM only when the new one is active.
Common mistakes to avoid
- Deactivating the old SIM before the new one is active — number gone.
- Not factoring remaining device payments when switching bundles.
- Comparing only the monthly price, not term and bonus.
- Cancelling without written confirmation.
- Forgetting number porting — contacts and two-factor apps break.
Checklist before you compare
- Contract end and notice period noted.
- Remaining device payments calculated (for bundles).
- New customer bonus and term of new plan compared.
- Number port requested with the new provider.
- Deactivate old SIM only after the new one is active.
Frequently asked questions
Does number porting cost extra?
With most providers porting is free — check the new plan’s terms.
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