This is an excerpt from the following article (credit to the person who already mentioned this below in the comments):
https://www.irs.gov/individuals/refund-timing
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How do I check the status of my refund?
“-Where’s My Refund will be updated with projected deposit dates for most early EITC and ACTC refund filers on February 17 so those filers will not see a refund date on Where’s My Refund or through their software packages until then. The IRS, tax preparers and tax software will not have additional information on refund dates, so these filers should not contact or call about refunds before the end of February.”
Also the page does note the following:
Page Last Reviewed or Updated: 30-Jan-2018, so assuming that’s how old the above information is.