# # 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. # # # Query terms are ambiguous. The query is assumed to be: # "n 170.4.5.2" # # Use "?" to get help. # NetRange: 170.4.0.0 - 170.4.31.255 CIDR: 170.4.0.0/19 NetName: USSC-9-170-4 NetHandle: NET-170-4-0-0-1 Parent: NET170 (NET-170-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: United States Steel Corporation (USSC-9) RegDate: 1993-12-02 Updated: 2023-06-23 Ref: https://rdap.arin.net/registry/ip/170.4.0.0 OrgName: United States Steel Corporation OrgId: USSC-9 Address: 1509 Muriel Street City: Pittsburgh StateProv: PA PostalCode: 15203 Country: US RegDate: 2011-10-04 Updated: 2023-06-13 Comment: 24/7/365 Help Desk: Comment: Comment: 1-800-552-2730 Ref: https://rdap.arin.net/registry/entity/USSC-9 OrgAbuseHandle: NOC12282-ARIN OrgAbuseName: Network Operations Center OrgAbusePhone: +1-800-552-2730 OrgAbuseEmail: dp@uss.com OrgAbuseRef: https://rdap.arin.net/registry/entity/NOC12282-ARIN OrgTechHandle: USSAD-ARIN OrgTechName: USS Administration OrgTechPhone: +1-412-433-5790 OrgTechEmail: usx_domain_admin@uss.com OrgTechRef: https://rdap.arin.net/registry/entity/USSAD-ARIN OrgNOCHandle: NOC12282-ARIN OrgNOCName: Network Operations Center OrgNOCPhone: +1-800-552-2730 OrgNOCEmail: dp@uss.com OrgNOCRef: https://rdap.arin.net/registry/entity/NOC12282-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. #