#
# 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: 2025-12-02
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
OrgAbuseHandle: ABUSE7-ARIN
OrgAbuseName: abuse
OrgAbusePhone: +1-919-319-8167
OrgAbuseEmail:
[email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE7-ARIN
OrgTechHandle: ICC-ARIN
OrgTechName: IP Team
OrgTechPhone: +1-888-876-2382
OrgTechEmail:
[email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/ICC-ARIN
OrgRoutingHandle: ROUTI59-ARIN
OrgRoutingName: Routing POC
OrgRoutingPhone: +1-999-999-9999
OrgRoutingEmail:
[email protected]
OrgRoutingRef: https://rdap.arin.net/registry/entity/ROUTI59-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
# end
# start
NetRange: 12.5.138.0 - 12.5.139.255
CIDR: 12.5.138.0/23
NetName: AMX-138-5-12
NetHandle: NET-12-5-138-0-1
Parent: ATT (NET-12-0-0-0-1)
NetType: Reassigned
OriginAS:
Organization: AMX, LLC. (AMXLL)
RegDate: 2012-07-03
Updated: 2012-07-03
Ref: https://rdap.arin.net/registry/ip/12.5.138.0
OrgName: AMX, LLC.
OrgId: AMXLL
Address: 3000 Research Dr.
City: Richardson
StateProv: TX
PostalCode: 75082
Country: US
RegDate: 2010-03-18
Updated: 2021-10-18
Ref: https://rdap.arin.net/registry/entity/AMXLL
OrgRoutingHandle: WITKO20-ARIN
OrgRoutingName: Witkowski, Piotr
OrgRoutingPhone: +48-669-056-088
OrgRoutingEmail:
[email protected]
OrgRoutingRef: https://rdap.arin.net/registry/entity/WITKO20-ARIN
OrgTechHandle: WITKO20-ARIN
OrgTechName: Witkowski, Piotr
OrgTechPhone: +48-669-056-088
OrgTechEmail:
[email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/WITKO20-ARIN
OrgNOCHandle: WITKO20-ARIN
OrgNOCName: Witkowski, Piotr
OrgNOCPhone: +48-669-056-088
OrgNOCEmail:
[email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/WITKO20-ARIN
OrgTechHandle: MANSF6-ARIN
OrgTechName: Mansfield, Marcus
OrgTechPhone: +447900493685
OrgTechEmail:
[email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/MANSF6-ARIN
OrgTechHandle: PAGEA3-ARIN
OrgTechName: Page, Andy
OrgTechPhone: +1-574-294-8394
OrgTechEmail:
[email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/PAGEA3-ARIN
OrgAbuseHandle: WITKO20-ARIN
OrgAbuseName: Witkowski, Piotr
OrgAbusePhone: +48-669-056-088
OrgAbuseEmail:
[email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/WITKO20-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.
#
Map neighboring IP addresses and identify potential subnet associations.