Yes. It is owned by Apple. Used by online support to troubleshoot your Mac by remote login. The software they likely asked you to install was TeamViewer, or LogMeIn.
Domain Name: APPLE.COM
Registrar: CSC CORPORATE DOMAINS, INC.
Sponsoring Registrar IANA ID: 299
Whois Server: whois.corporatedomains.com
Referral URL: http://www.cscglobal.com/global/web/csc/digital-brand-services.html
Name Server: ADNS1.APPLE.COM
Name Server: ADNS2.APPLE.COM
Name Server: NSERVER.APPLE.COM
Name Server: NSERVER2.APPLE.COM
Name Server: NSERVER3.APPLE.COM
Name Server: NSERVER4.APPLE.COM
Name Server: NSERVER5.APPLE.COM
Name Server: NSERVER6.APPLE.COM
Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Updated Date: 04-dec-2012
Creation Date: 19-feb-1987
Expiration Date: 20-feb-2021
Domain Name: apple.com
Registry Domain ID: 1225976_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.corporatedomains.com
Registrar URL: www.cscprotectsbrands.com
Updated Date: 2015-07-16T15:04:28Z
Creation Date: 1987-02-19T05:00:00Z
Registrar Registration Expiration Date: 2021-02-20T05:00:00Z
Registrar: CSC CORPORATE DOMAINS, INC.
Registrar IANA ID: 299
Registrar Abuse Contact Email: domainabuse@cscglobal.com
Registrar Abuse Contact Phone: +1.8887802723
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Registry Registrant ID:
Registrant Name: Domain Administrator
Registrant Organization: Apple Inc.
Registrant Street: 1 Infinite Loop
Registrant City: Cupertino
Registrant State/Province: CA
Registrant Postal Code: 95014
Registrant Country: US
Registrant Phone: +1.4089961010
Registrant Phone Ext:
Registrant Fax: +1.4089741560
Registrant Fax Ext:
Registrant Email: domains@apple.com
Registry Admin ID:
Admin Name: Domain Administrator
Admin Organization: Apple Inc.
Admin Street: 1 Infinite Loop
Admin City: Cupertino
Admin State/Province: CA
Admin Postal Code: 95014
Admin Country: US
Admin Phone: +1.4089961010
Admin Phone Ext:
Admin Fax: +1.4089741560
Admin Fax Ext:
Admin Email: domains@apple.com
Registry Tech ID:
Tech Name: Domain Administrator
Tech Organization: Apple Inc.
Tech Street: 1 Infinite Loop
Tech City: Cupertino
Tech State/Province: CA
Tech Postal Code: 95014
Tech Country: US
Tech Phone: +1.4089961010
Tech Phone Ext:
Tech Fax: +1.4089741560
Tech Fax Ext:
Tech Email: Apple-NOC@apple.com
Name Server: ADNS1.APPLE.COM
Name Server: nserver6.apple.com
Name Server: nserver4.apple.com
Name Server: nserver.apple.com
Name Server: nserver5.apple.com
Name Server: ADNS2.APPLE.COM
Name Server: nserver2.apple.com
Name Server: nserver3.apple.com