# # 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. # # start NetRange: 204.146.0.0 - 204.146.255.255 CIDR: 204.146.0.0/16 NetName: ATT-204-146-0-0-C NetHandle: NET-204-146-0-0-1 Parent: NET204 (NET-204-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: AT&T Enterprises, LLC (AEL-360) RegDate: 1994-09-12 Updated: 2024-12-05 Ref: https://rdap.arin.net/registry/ip/204.146.0.0 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: 2026-06-05 Ref: https://rdap.arin.net/registry/entity/AEL-360 OrgAbuseHandle: ABUSE7-ARIN OrgAbuseName: abuse OrgAbusePhone: +1-919-319-8167 OrgAbuseEmail: abuse@att.net OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE7-ARIN OrgRoutingHandle: ROUTI59-ARIN OrgRoutingName: Routing POC OrgRoutingPhone: +1-999-999-9999 OrgRoutingEmail: routing_poc@att.com OrgRoutingRef: https://rdap.arin.net/registry/entity/ROUTI59-ARIN OrgTechHandle: ICC-ARIN OrgTechName: IP Team OrgTechPhone: +1-888-876-2382 OrgTechEmail: rm-ipspecialist@att.com OrgTechRef: https://rdap.arin.net/registry/entity/ICC-ARIN OrgTechHandle: ZS44-ARIN OrgTechName: IPAdmin-ATT Internet Services OrgTechPhone: +1-888-510-5545 OrgTechEmail: ipadmin@att.com OrgTechRef: https://rdap.arin.net/registry/entity/ZS44-ARIN # end # start NetRange: 204.146.0.0 - 204.146.18.255 CIDR: 204.146.18.0/24, 204.146.16.0/23, 204.146.0.0/20 NetName: EXECNET-NET1 NetHandle: NET-204-146-0-0-2 Parent: ATT-204-146-0-0-C (NET-204-146-0-0-1) NetType: Reassigned OriginAS: Organization: IBM (IBM-6) RegDate: 1994-09-12 Updated: 1997-03-24 Ref: https://rdap.arin.net/registry/ip/204.146.0.0 OrgName: IBM OrgId: IBM-6 Address: 1 Old Orchard Rd. City: Armonk StateProv: NY PostalCode: 10504 Country: US RegDate: 1994-09-12 Updated: 2011-09-24 Ref: https://rdap.arin.net/registry/entity/IBM-6 OrgAbuseHandle: RR3070-ARIN OrgAbuseName: Radosevich, Rade OrgAbusePhone: +1-813-878-3566 OrgAbuseEmail: rade@vnet.ibm.com OrgAbuseRef: https://rdap.arin.net/registry/entity/RR3070-ARIN OrgTechHandle: RR3070-ARIN OrgTechName: Radosevich, Rade OrgTechPhone: +1-813-878-3566 OrgTechEmail: rade@vnet.ibm.com OrgTechRef: https://rdap.arin.net/registry/entity/RR3070-ARIN RTechHandle: RR3070-ARIN RTechName: Radosevich, Rade RTechPhone: +1-813-878-3566 RTechEmail: rade@vnet.ibm.com RTechRef: https://rdap.arin.net/registry/entity/RR3070-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 1997-2026, American Registry for Internet Numbers, Ltd. #