# # 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 143.58.17.57" # # Use "?" to get help. # NetRange: 143.58.0.0 - 143.58.63.255 CIDR: 143.58.0.0/18 NetName: MBRM-NET NetHandle: NET-143-58-0-0-1 Parent: NET143 (NET-143-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Mayer Brown LLP (MBRML) RegDate: 1990-03-26 Updated: 2022-04-06 Ref: https://rdap.arin.net/registry/ip/143.58.0.0 OrgName: Mayer Brown LLP OrgId: MBRML Address: 71 S. Wacker City: Chicago StateProv: IL PostalCode: 60606 Country: US RegDate: 2006-01-12 Updated: 2016-07-12 Ref: https://rdap.arin.net/registry/entity/MBRML OrgTechHandle: MCS7-ARIN OrgTechName: Sherman, Michael C OrgTechPhone: +1-312-701-8315 OrgTechEmail: msherman@mayerbrown.com OrgTechRef: https://rdap.arin.net/registry/entity/MCS7-ARIN OrgAbuseHandle: MCS7-ARIN OrgAbuseName: Sherman, Michael C OrgAbusePhone: +1-312-701-8315 OrgAbuseEmail: msherman@mayerbrown.com OrgAbuseRef: https://rdap.arin.net/registry/entity/MCS7-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. #