Číslovací plán ČR

222760000-222769999        311230000-311239999
351160000-351169999        371140000-371149999
381300000-381309999        411190000-411199999
461050000-461059999        480020000-480029999
490510000-490519999        511140000-511149999
558840000-558849999        561030000-561039999
571160000-571169999        581030000-581039999
910080000-910089999                

Volání v rámci těchto prefixů
v síti Mikrotech zdarma

800333633-800333633        800400116-800400116
800401201-800401201        800500200-800500200
800500800-800500800        800567890-800567890
800663300-800663300        800666800-800666800
800765765-800765765        800800230-800800230
800800456-800800456        800808800-800808800
800841111-800841111        822833833-822833833