There have been a number of research concentrating on the request production of ESL/EFL, and native speakers. There have been some studies investigating the production of request speech act of EFLs and ESLs. However, no research has yet focused on the production differences of request speech act among Iranian EFLs and ESLs in terms of internal and external modification devices. First, the participants were given Oxford Placement Test (OPT) to determine their English proficiency level and 95 learners were chosen out of 123 ESLs and EFLs to respond to the scenarios adopted from Schauer (2009). Second, the scenarios were given to the participants via email or an already-made GoogleDoc link of the scenarios. The results of the independent t-test revealed that Iranian ESLs outperformed their EFL counterparts. The results regarding request head act, internal and external modifiers demonstrated that ESLs mostly applied conventionally indirect request strategies while EFLs mostly tended to apply direct request strategies. It was also revealed that requests produced by ESLs were more native-like with no or few grammatical mistakes and that both EFLs and ESLs utilized external modifiers more than internal modifiers. This study implies that due and sufficient attention is to be paid to EFLs since they lack sufficient exposure to L2 and such impoverished pragmatic input might result in inappropriate applications of speech acts in general and request speech act in particular.