The GSA (https://gsacom.com), which keeps a keen eye on these things, recently updated their data on World LTE and 5G deployments.
They reported that there are 812 operators with commercially launched public LTE networks offering broadband fixed wireless access and or mobile services.
496 operators in 150 countries/territories have been investing in 5G networks in the form of tests, pilots, licence acquisitions, planned and
actual deployments. Of these, 218 operators in 87 countries/territories have launched commercial 3GPP-compatible 5G services (mobile or fixed wireless access. Only 24 of the 218 have launched Stand Alone SA 5G.
In addition to these commercial public networks GSA says that there have been 338 private networks launched using LTE or 5G technologies.