AS8326 PL-BYDMAN-EDU Educational Users

PL-BYDMAN-EDU is held by Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich

(the Bydgoszcz University of Science and Technology). The university operates

BYDMAN, the metropolitan academic network for the city of Bydgoszcz, and this AS

carries both the campus and that MAN.

What it's used for

• Campus networking for the university itself. Reverse DNS in 212.122.208.0/21 resolves under atr.bydgoszcz.pl, utp.edu.pl and pbs.edu.pl — three generations of the same institution's domain, as it was renamed from ATR to UTP to Politechnika Bydgoska.
• The Bydgoszcz MAN (man.bydgoszcz.pl), which connects other academic and public institutions in the city. Much of 82.146.224.0/19 carries nat-SUBNET-HOST.man. bydgoszcz.pl naming, so a good part of that space is carried behind NAT.
• Around 22k addresses across five prefixes, with a handful of downstream neighbours typical of a MAN operator serving city institutions.

Notable

• Academic and institutional, not consumer. The NAT pools are university and member-institution users, not retail broadband subscribers. Addresses here should be attributed to Bydgoszcz academic institutions rather than to households.
• The old atr.bydgoszcz.pl and utp.edu.pl hostnames are still live in reverse DNS. They are the same university under earlier names, not separate organisations.

Interesting

• Poland's academic networking was built as a federation of city MANs, each usually run by the leading local technical university and each holding its own low AS number. This is Bydgoszcz's, and it sits alongside siblings like Kraków's [AS8323](https://asn.ipinfo.app/AS8323).