# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # ASNumber: 30551 ASName: ASC-163-ASN01 ASHandle: AS30551 RegDate: 2003-11-04 Updated: 2012-03-02 Ref: https://rdap.arin.net/registry/autnum/30551 OrgName: CLEVELAND-CLIFFS STEEL CORPORATION OrgId: ASC-163 Address: 200 Public Square Address: IT Department City: Cleveland StateProv: OH PostalCode: 44114 Country: US RegDate: 2002-12-17 Updated: 2026-05-05 Comment: Company Website: www.clevelandcliffs.com Ref: https://rdap.arin.net/registry/entity/ASC-163 OrgNOCHandle: ABUSE9467-ARIN OrgNOCName: Abuse OrgNOCPhone: +1-216-694-5700 OrgNOCEmail: arinadmin@clevelandcliffs.com OrgNOCRef: https://rdap.arin.net/registry/entity/ABUSE9467-ARIN OrgAbuseHandle: ABUSE9467-ARIN OrgAbuseName: Abuse OrgAbusePhone: +1-216-694-5700 OrgAbuseEmail: arinadmin@clevelandcliffs.com OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE9467-ARIN OrgTechHandle: ABUSE9467-ARIN OrgTechName: Abuse OrgTechPhone: +1-216-694-5700 OrgTechEmail: arinadmin@clevelandcliffs.com OrgTechRef: https://rdap.arin.net/registry/entity/ABUSE9467-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #