3.1.4.1	phosphodiesterase I	-	
3.1.4.10	1-phosphatidylinositol phosphodiesterase	transferred to EC 4.6.1.13	
3.1.4.11	phosphoinositide phospholipase C	-	
3.1.4.12	sphingomyelin phosphodiesterase	-	
3.1.4.13	serine-ethanolaminephosphate phosphodiesterase	-	
3.1.4.14	[acyl-carrier-protein] phosphodiesterase	-	
3.1.4.15	adenylyl-[glutamate-ammonia ligase] hydrolase	transferred to EC 2.7.7.89	
3.1.4.16	2',3'-cyclic-nucleotide 2'-phosphodiesterase	-	
3.1.4.17	3',5'-cyclic-nucleotide phosphodiesterase	-	
3.1.4.18	phosphodiesterase II	transferred to EC 3.1.16.1