TOKYO, Aug 4 (Reuters) - Japanese wireless carrier SoftBank Corp on Tuesday reported a 4% rise in first-quarter operating profit, beating analyst estimates, supported by its enterprise business.

April-June profit reached 280 billion yen ($2.6 billion). That compared with a 262 billion yen average of two analyst estimates compiled by Refinitiv. ($1 = 106.0600 yen)

(Reporting by Sam Nussey; Editing by Christopher Cushing)