12.231.156.0 is an IP version 4.

The IP is from United States (US)

AS Number: 2386 AS Description: INS-AS, US

This domain does not have a reverse DNS entry.

# # 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 1997-2025, American Registry for Internet Numbers, Ltd. # # start NetRange: 12.0.0.0 - 12.255.255.255 CIDR: 12.0.0.0/8 NetName: ATT NetHandle: NET-12-0-0-0-1 Parent: NET12 (NET-12-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: AT&T Enterprises, LLC (AEL-360) RegDate: 1983-08-23 Updated: 2025-03-18 Ref: https://rdap.arin.net/registry/ip/12.0.0.0 OrgName: AT&T Enterprises, LLC OrgId: AEL-360 Address: 208 S. Akard St. City: Dallas StateProv: TX PostalCode: 75202 Country: US RegDate: 2024-11-22 Updated: 2025-03-21 Ref: https://rdap.arin.net/registry/entity/AEL-360 OrgTechHandle: ICC-ARIN OrgTechName: IP Team OrgTechPhone: +1-888-876-2382 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/ICC-ARIN OrgAbuseHandle: ABUSE7-ARIN OrgAbuseName: abuse OrgAbusePhone: +1-919-319-8167 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE7-ARIN OrgTechHandle: ZS44-ARIN OrgTechName: IPAdmin-ATT Internet Services OrgTechPhone: +1-888-510-5545 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/ZS44-ARIN OrgRoutingHandle: ROUTI59-ARIN OrgRoutingName: Routing POC OrgRoutingPhone: +1-999-999-9999 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/ROUTI59-ARIN # end # start NetRange: 12.231.156.0 - 12.231.157.255 CIDR: 12.231.156.0/23 NetName: ASCENSIO544-156 NetHandle: NET-12-231-156-0-1 Parent: ATT (NET-12-0-0-0-1) NetType: Reassigned OriginAS: Organization: ASCENSION HEALTH INC (ASCEN-51) RegDate: 2012-08-24 Updated: 2012-08-24 Ref: https://rdap.arin.net/registry/ip/12.231.156.0 OrgName: ASCENSION HEALTH INC OrgId: ASCEN-51 Address: 4600 EDMUNDSON RD City: EDMUNDSON StateProv: MO PostalCode: 63134 Country: US RegDate: 2011-02-01 Updated: 2011-09-24 Ref: https://rdap.arin.net/registry/entity/ASCEN-51 OrgAbuseHandle: DSC210-ARIN OrgAbuseName: Scher, David OrgAbusePhone: +1-314-733-8457 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/DSC210-ARIN OrgTechHandle: DSC210-ARIN OrgTechName: Scher, David OrgTechPhone: +1-314-733-8457 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/DSC210-ARIN # end # # 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 1997-2025, American Registry for Internet Numbers, Ltd. #