https://rdap.arin.net/registry/entity/MD83-ARIN[https://whois.arin.net/rest/poc/MD83-ARIN]SwarthmoreSwarthmore CollegeUSUSAUnited States1MarkMD83-ARINNDumicdumic@swarthmore.eduJ.false+1-610-328-8511OfficeO+1-215-768-0357MobileMGeneral useG19081PAInvalidPI500 College Avenue2026-01-16T16:35:39-05:00