How to block, mark as spam, or unblock phone numbers on ZTE devices

ZTE Blade A7 ZTE Blade A7
ZTE Blade A7 Helio P60 ZTE Blade A7 Helio P60
ZTE Axon 10 Pro ZTE Axon 10 Pro
ZTE Blade L130 ZTE Blade L130
ZTE Blade A5 ZTE Blade A5
ZTE Blade L8 ZTE Blade L8
ZTE Blade A3 (2019) ZTE Blade A3 (2019)
ZTE nubia Red Magic 3 ZTE nubia Red Magic 3
ZTE Axon 10 Pro 5G ZTE Axon 10 Pro 5G
ZTE Blade V10 ZTE Blade V10
ZTE nubia Red Magic Mars ZTE nubia Red Magic Mars
ZTE nubia X ZTE nubia X
ZTE nubia Z18 ZTE nubia Z18
ZTE Axon 9 Pro ZTE Axon 9 Pro
ZTE nubia Red Magic ZTE nubia Red Magic
ZTE nubia Z18 mini ZTE nubia Z18 mini
ZTE nubia V18 ZTE nubia V18
ZTE nubia N3 ZTE nubia N3
ZTE Blade V9 Vita ZTE Blade V9 Vita
ZTE Blade V9 ZTE Blade V9