Locating relatives in Poland with dowod osobisty

[paprocki_nyc]

I have dowod osobisty numbers for two relatives from the 1960s (old format AB1234567) and I do not know what happened to them after 1965. They are most likely deceased now. Is there any service which can be used to determine whereabouts, date of death, etc from this number?

[Sroczyński_Włodzimierz]

IMHO: it's serial number, no relation with anything:)

[Kaz]

yes,it is.Contact with USC.They`ll able to tell you about them
kaz

[anna-grażyna]

You can try to write and ask them:

Ministry of Internal Affairs
(Ministry of Interior and Administration)
Central register of Polish citizens

wud@cpd.mswia.gov.pl