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: 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

NetRange: 12.28.32.0 - 12.28.39.255
CIDR: 12.28.32.0/21
NetName: ATTWORLD-MIS-28-32
NetHandle: NET-12-28-32-0-1
Parent: ATT (NET-12-0-0-0-1)
NetType: Reallocated
OriginAS:
Organization: AT&T Services, Inc. (ATTW)
RegDate: 2011-04-14
Updated: 2011-04-14
Ref: https://rdap.arin.net/registry/ip/12.28.32.0

OrgName: AT&T Services, Inc.
OrgId: ATTW
Address: 200 S. Laurel AVE.
City: MIDDLETOWN
StateProv: NJ
PostalCode: 07748
Country: US
RegDate:
Updated: 2024-11-25
Comment: Contact AT&T Abuse ( abuse@att.net ) for policy abuse issues.
Comment: All policy abuse issues sent to other POCs will be disregarded.
Ref: https://rdap.arin.net/registry/entity/ATTW

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

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

OrgAbuseHandle: ATTAB-ARIN
OrgAbuseName: ATT Abuse
OrgAbusePhone: +1-999-999-9999
OrgAbuseEmail: abuse@att.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/ATTAB-ARIN

OrgTechHandle: IPSWI-ARIN
OrgTechName: IP SWIP
OrgTechPhone: +1-888-613-6330
OrgTechEmail: swipid@icorefep3.ims.att.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPSWI-ARIN

NetRange: 12.28.32.160 - 12.28.32.175
CIDR: 12.28.32.160/28
NetName: DYNOMAX81-32-160
NetHandle: NET-12-28-32-160-1
Parent: ATTWORLD-MIS-28-32 (NET-12-28-32-0-1)
NetType: Reassigned
OriginAS:
Organization: DYNOMAX INC (DYNOM-13)
RegDate: 2018-02-23
Updated: 2018-02-23
Ref: https://rdap.arin.net/registry/ip/12.28.32.160

OrgName: DYNOMAX INC
OrgId: DYNOM-13
Address: 1535 ABBOTT DR
City: WHEELING
StateProv: IL
PostalCode: 60090
Country: US
RegDate: 2018-02-23
Updated: 2018-02-23
Ref: https://rdap.arin.net/registry/entity/DYNOM-13

OrgTechHandle: LANHA12-ARIN
OrgTechName: Lanham, Ryan
OrgTechPhone: +1-847-680-8833
OrgTechEmail: rlanham@dynomaxinc.com
OrgTechRef: https://rdap.arin.net/registry/entity/LANHA12-ARIN

OrgAbuseHandle: LANHA12-ARIN
OrgAbuseName: Lanham, Ryan
OrgAbusePhone: +1-847-680-8833
OrgAbuseEmail: rlanham@dynomaxinc.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/LANHA12-ARIN