発信 はっしん しゃ識別 しきべつ番号 ばんごうだったら
hasshinshashikibetsubangōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 発信者識別番号

1. If it's the sender identification number; If the sender identification number were

Tara Conditional
Computing