wrong number
Refers to a telephone call made to an incorrect number. Often used in phrases like 間違え電話をかける (to make a wrong number call) or 間違え電話がかかってくる (to receive a wrong number call).
See also: 間違い電話
I just got a wrong number call.
I accidentally made a wrong number call and hung up right away.
Synonym with the same meaning. 間違え電話 uses the nominal form 間違え, while 間違い電話 uses 間違い. Both are common, but 間違い電話 may be slightly more frequent in standard usage.
Compound of 間違え (mistake, nominal form of 間違える) + 電話 (telephone).