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: 2025-12-02
Comment: IP assignments within this IP Block range are STATIC, not dynamic.
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: 2025-10-29
Ref: https://rdap.arin.net/registry/entity/AEL-360

OrgTechHandle: ZS44-ARIN
OrgTechName: IPAdmin-ATT Internet Services
OrgTechPhone: +1-888-510-5545
OrgTechEmail: ipadmin@semail.att.com
OrgTechRef: https://rdap.arin.net/registry/entity/ZS44-ARIN

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: DL-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

NetRange: 12.187.54.192 - 12.187.54.207
CIDR: 12.187.54.192/28
NetName: HRI-PROP64-54-192
NetHandle: NET-12-187-54-192-1
Parent: ATT (NET-12-0-0-0-1)
NetType: Reassigned
OriginAS:
Organization: HRI PROPERTIES (HP-638)
RegDate: 2019-01-31
Updated: 2019-01-31
Ref: https://rdap.arin.net/registry/ip/12.187.54.192

OrgName: HRI PROPERTIES
OrgId: HP-638
Address: 40 E GEORGIA ST
City: INDIANAPOLIS
StateProv: IN
PostalCode: 46204
Country: US
RegDate: 2019-01-31
Updated: 2019-01-31
Ref: https://rdap.arin.net/registry/entity/HP-638

OrgAbuseHandle: BELLC73-ARIN
OrgAbuseName: Bell, Chet
OrgAbusePhone: +1-504-566-8052
OrgAbuseEmail: chet.bell@hriproperties.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/BELLC73-ARIN

OrgTechHandle: BELLC73-ARIN
OrgTechName: Bell, Chet
OrgTechPhone: +1-504-566-8052
OrgTechEmail: chet.bell@hriproperties.com
OrgTechRef: https://rdap.arin.net/registry/entity/BELLC73-ARIN