Whois Lookup

Query registration info, expiration date, registrar and more for domain, IP or ASN

Example： google.com · baidu.com · github.com · 8.8.8.8 · 211.234.110.0/24 · AS13335
Registration Info
12.55.0.0/16
IP Range
12.55.0.0 - 12.55.255.255
CIDR
12.55.0.0/16
Network Name
ATT-NET-12-55-0-0
Organization
AT&T IP Team (AIT-52)
Country/Region
US
Abuse Contact
[email protected]
Registration Date
2023-09-01
Update Date
2023-09-01
Registrant
AT&T IP Team (AIT-52)
Domain Status
Reallocated
Raw Whois Data
#
# 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:       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:  [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:       12.55.0.0 - 12.55.255.255
CIDR:           12.55.0.0/16
NetName:        ATT-NET-12-55-0-0
NetHandle:      NET-12-55-0-0-1
Parent:         ATT (NET-12-0-0-0-1)
NetType:        Reallocated
OriginAS:       
Organization:   AT&T IP Team (AIT-52)
RegDate:        2023-09-01
Updated:        2023-09-01
Comment:        AT&T Worldnet Services
Comment:        For policy abuse issues contact: [email protected]
Comment:        For all Legal Inquiries contact:
Comment:        AT&T National Compliance Center
Comment:        11760 US Hwy 1, Suite 600
Comment:        North Palm Beach, FL 33408
Comment:        Phone: 1-800-635-6840
Comment:        Fax: 1-888-938-4715]
Comment:        Email: [email protected] 
Ref:            https://rdap.arin.net/registry/ip/12.55.0.0


OrgName:        AT&T IP Team
OrgId:          AIT-52
Address:        30 Knightsbridge Drive
City:           Piscataway
StateProv:      NJ
PostalCode:     08854
Country:        US
RegDate:        2003-10-21
Updated:        2025-04-01
Ref:            https://rdap.arin.net/registry/entity/AIT-52


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

OrgAbuseHandle: ATTAB-ARIN
OrgAbuseName:   ATT Abuse
OrgAbusePhone:  +1-999-999-9999 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ATTAB-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.
#