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Call forwarding

Forwarding to Tirza when you're with Three (UK & IE)

Lebara prepaid or contract: forward your number to Tirza in 2 minutes.

Last updated: 20 April 2026

Forwarding to Tirza when you're with Three (UK or IE)

Lebara runs on the KPN network, so the codes are (almost) the same.

What you need

  • Your phone with the Lebara SIM
  • Your Tirza number (dashboard)
  • Enough credit if you're prepaid — forwarding itself is free, but your number has to be active
Screenshot: Tirza number on dashboard

Step 1 — Choose your flavour

Forward everything or only when you don't pick up / busy. See the KPN article for the difference.

Step 2 — Tap in the code

Forward everything:

**21*[tirza-number]#

Only when you don't pick up or are busy:

**61*[tirza-number]*11*30#
Screenshot: phone screen with the code entered

Step 3 — Test

Have someone ring you or use the test call button on your dashboard.

Turning it off

##21#

##61#


## Worth knowing for Lebara specifically

**Prepaid with low credit?** Make sure you have at least €2 credit. If you've run out, forwarding sometimes won't work.

**Swapped your SIM?** After every SIM swap you need to tap the forwarding code in again. It's not "set once and done".

**International bundle?** Lebara's international bundles sometimes only support forwarding to Dutch numbers. Your Tirza number is a Dutch number, so that's fine.

## Problems?

**"Code invalid"**
On Lebara: restart your phone once. Sometimes the code hangs on first use.

**"I'm getting an error in English/Hindi"**
Lebara's messages aren't always in Dutch. The meaning is the same: "Conditional forwarding activated" = you're set.

Stuck? Email hello@tirza.ai with a screenshot of the error.
Forwarding to Tirza when you're with Three (UK & IE) · Tirza