Be sure to include your contact information with your question. PIMCO Mutual Funds. All Shares. 888.87.PIMCO (888.877.4626) Submit an Inquiry. PIMCO ETF's. 888.400.4ETF (888.400.4383) PIMCO Closed-End Funds. 844.33.PIMCO (844.337.4626) Submit an Inquiry. PIMCO Interval Funds. 844.312.2113. PIMCO Separate Accounts. 888.877.4383.