Slovakia is +421

A local writes 0912 123 456 — the dialer below turns that into what you press.

Country code
+421
Dialing out
00
Trunk prefix
0

The leading zero stays home: 0912 123 456 becomes +421 912 123 456 once you cross the border. Mobile prefixes cluster in 090x, 091x, 094x and 095x, while fixed lines pair a two-digit area code with seven digits — Bratislava alone gets a one-digit code and eight. Slovakia kept Czechoslovakia's 42 until adopting 421 in 1997. Dial 00 to call abroad.

Nine digits after the trunk zero: mobiles on 09xx blocks, Bratislava on the single-digit code 2.

You dial

011 421 912123456

011 exits United States · 421 reaches Slovakia · the leading 0 stays home. From any mobile, +421 912123456 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. Prose is our own.

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