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: 9380 STATION ST
City: LONE TREE
StateProv: CO
PostalCode: 80124
Country: US
RegDate: 2024-11-22
Updated: 2025-10-14
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

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

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: 12.131.77.64 - 12.131.77.95
CIDR: 12.131.77.64/27
NetName: FIRSTMAR731-77-64
NetHandle: NET-12-131-77-64-1
Parent: ATT (NET-12-0-0-0-1)
NetType: Reassigned
OriginAS:
Organization: FIRSTMARK CREDIT UNION (FCU-104)
RegDate: 2020-04-19
Updated: 2020-04-19
Ref: https://rdap.arin.net/registry/ip/12.131.77.64

OrgName: FIRSTMARK CREDIT UNION
OrgId: FCU-104
Address: 2023 GOLD CANYON RD
City: SAN ANTONIO
StateProv: TX
PostalCode: 78232
Country: US
RegDate: 2020-03-24
Updated: 2020-03-24
Ref: https://rdap.arin.net/registry/entity/FCU-104

OrgAbuseHandle: CREMA2-ARIN
OrgAbuseName: Cremar, Ramiro
OrgAbusePhone: +1-210-900-5861
OrgAbuseEmail: ramiroc@firstmarkcu.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/CREMA2-ARIN

OrgTechHandle: CREMA2-ARIN
OrgTechName: Cremar, Ramiro
OrgTechPhone: +1-210-900-5861
OrgTechEmail: ramiroc@firstmarkcu.org
OrgTechRef: https://rdap.arin.net/registry/entity/CREMA2-ARIN