Samsung A13 Dual SIM Galaxy Smartphone (GSM ONLY) - International Version

Samsung A13 Dual SIM Galaxy Smartphone (GSM ONLY) - International Version

GSM CARRIERS ONLY (AT&T and T-Mobile) This phone is not compatible with CDMA carriers like Verizon or Boost

FYI, Boost is no longer CDMA. It offers TN (tmobile) and BTN (AT&T) network options.

Is any of Samsung A23, Samsung A13 or Samsung A33 support 5G?

The A33 supports 5G. The others have two models, one that does, and one that doesn’t. The models that do support 5G have a “5G” in their name.
https://www.gsmarena.com/compare.php3?idPhone1=11402&idPhone2=11373&idPhone3=11429

Is this open line phone?

I’m not sure what that means.

Like is this factory unlocked?

No. It’s GSM only.