Numbering assigned to Operadors Quilometre Zero
According to the CNMC numbering register, Operadors Quilometre Zero holds 4 assigned blocks with 13,000 numbers under 4 prefixes. 13,000 of them are landline numbers.
OQ
Holder in the register: OPERADORS QUILOMETRE ZERO, S.L..
Landline prefixes
An assigned block shows which operator the CNMC gave that numbering to. Because of number portability, a given number may now be with another operator, and a prefix does not identify the caller on its own.
Source
Comisión Nacional de los Mercados y la Competencia (CNMC) · Registro de numeración: bloques de numeración asignados (bd-num) · Data imported on 2 Jul 2026