IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
NetRange: 198.133.139.0 - 198.133.139.255 CIDR: 198.133.139.0/24 NetName: MEDSTARHEALTHDC NetHandle: NET-198-133-139-0-1 Parent: NET198 (NET-198-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: MedStar Health (MEDSTA-4) RegDate: 1993-04-16 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/198.133.139.0 OrgName: MedStar Health OrgId: MEDSTA-4 Address: 2331 Broadbirch Drive City: Silver Spring StateProv: MD PostalCode: 20904 Country: US RegDate: 2002-06-12 Updated: 2026-06-25 Ref: https://rdap.arin.net/registry/entity/MEDSTA-4 OrgAbuseHandle: ADMIN9072-ARIN OrgAbuseName: admin OrgAbusePhone: +1-443-593-8447 OrgAbuseEmail: olatunbosun.r.rotimi@medstar.net OrgAbuseRef: https://rdap.arin.net/registry/entity/ADMIN9072-ARIN OrgTechHandle: ADMIN9072-ARIN OrgTechName: admin OrgTechPhone: +1-443-593-8447 OrgTechEmail: olatunbosun.r.rotimi@medstar.net OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN9072-ARIN