75.0.21.0 is an IP version 4.

The IP is from United States (US)

AS Number: 2386 AS Description: INS-AS, US

This domain does not have a reverse DNS entry.

# # 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: 75.0.0.0 - 75.1.255.255 CIDR: 75.0.0.0/15 NetName: SBCIS-SBIS-6BLK NetHandle: NET-75-0-0-0-1 Parent: NET75 (NET-75-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: AT&T Enterprises, LLC (AEL-360) RegDate: 2006-02-28 Updated: 2024-12-05 Ref: https://rdap.arin.net/registry/ip/75.0.0.0 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: 2025-03-21 Ref: https://rdap.arin.net/registry/entity/AEL-360 OrgRoutingHandle: ROUTI59-ARIN OrgRoutingName: Routing POC OrgRoutingPhone: +1-999-999-9999 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/ROUTI59-ARIN OrgAbuseHandle: ABUSE7-ARIN OrgAbuseName: abuse OrgAbusePhone: +1-919-319-8167 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE7-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 OrgTechHandle: ICC-ARIN OrgTechName: IP Team OrgTechPhone: +1-888-876-2382 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/ICC-ARIN # end # start NetRange: 75.0.21.0 - 75.0.21.255 CIDR: 75.0.21.0/24 NetName: SBC07500002100024060509164054 NetHandle: NET-75-0-21-0-1 Parent: SBCIS-SBIS-6BLK (NET-75-0-0-0-1) NetType: Reassigned OriginAS: Customer: Performance Computing IAF 1139722.750 (C01348609) RegDate: 2006-05-09 Updated: 2018-01-10 Ref: https://rdap.arin.net/registry/ip/75.0.21.0 CustName: Performance Computing IAF 1139722.750 Address: 1205 East Winnemucca Blvd City: WINNEMUCCA StateProv: NV PostalCode: 89445 Country: US RegDate: 2006-05-09 Updated: 2018-07-19 Ref: https://rdap.arin.net/registry/entity/C01348609 OrgRoutingHandle: ROUTI59-ARIN OrgRoutingName: Routing POC OrgRoutingPhone: +1-999-999-9999 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/ROUTI59-ARIN OrgAbuseHandle: ABUSE7-ARIN OrgAbuseName: abuse OrgAbusePhone: +1-919-319-8167 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE7-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 OrgTechHandle: ICC-ARIN OrgTechName: IP Team OrgTechPhone: +1-888-876-2382 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/ICC-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. #