Telekom home connections commonly receive a new IPv4 address every 24 hours (the "Zwangstrennung" tradition), so an AS3320 address seen today may belong to a different household tomorrow. Geolocation is reliable to the region.
Networks (ASN) / AS3320
AS3320 Deutsche Telekom AG
Residential ISP / carrierDE
Germany's incumbent telecom operator and largest ISP (Telekom / T-Online), also a major European backbone.