This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a phosphate group as acceptor. The systematic name of this enzyme class is ATP:(d)NMP phosphotransferase.
References
BELLO LJ, BESSMAN MJ (1963). "The enzymology of virus-infected bacteria. IV. Purification and properties of the deoxynucleotide kinase induced by bacteriophage T2". J. Biol. Chem. 238: 1777–87. PMID13967158.