1985-12-18T00:00:00-05:00https://rdap.arin.net/registry/autnum/55https://whois.arin.net/rest/asn/AS5555AS55UPENNfalsehttps://whois.arin.net/rest/org/UNIVER-8-Zhttps://www.upenn.edu/ Main AS number for PennNet of the University of Pennsylvania552021-10-14T16:50:13-04:00