If I read this correctly you are 62-ish and have 48 years either NI or PRSI contributions, so working continuously since the age of 14?
Looks like I'm around a year out in both!
UK govt site has me with 30 full years. 4 years to state pension age. And 16 years when I didn't pay anything. That's when I lived and worked in Ireland.
As I said, the 35 year rule is only applicable to people starting work after 2016.
There are plenty of people who have reached full state pension or more, with less than 35 years. There are also people with more, sometimes a lot more , than 35 years, who have not reached the full amount.
It depends whether or not you were contracted out , and also, how much you were earning per year, pre 2016. Basically, people on higher earnings, who were not contracted out, accrued more state pension per year worked, than someone who was on less pay, and contracted out , say in public sector.