Paging Attempts increased suddenly

Dears Experts,

Anyone can explain why Paging Attempts increased suddenly in all MSS? what is the analysis steps to investigate the causing it should be take ?

we use Huawei system

Did you check any change in TAC / LAC mapping?

Check also if any changes in paging numbers.

Usually there are 2 pages per LAC then final paging per MSC, so 3 in total.

Maybe this was changed.