Czechia is +420
A local writes 601 123 456 — the dialer below turns that into what you press.
Czechia scrapped its trunk zero in 2002 when it adopted a closed nine-digit plan, so the number written on a Prague shopfront is exactly what follows +420. Mobiles are the 6xx and 7xx triplet ranges. Dial 00 to call out. Slovakia's numbers look similar but live under their own +421, a relic of the 1993 split.
Nine digits in three triplets; mobiles start with 6 or 7, Prague landlines with 2, other regions 3 to 5.
You dial
011 420 601123456
011 exits United States · 420 reaches Czechia. From any mobile, +420 601123456 works worldwide.
Type the number the way a local writes it — the arithmetic is derived from each country's ITU plan.
Plan facts verified against ITU-T E.164 assigned country codes · Telephone numbers in the Czech Republic — Wikipedia. Prose is our own.
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