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Domain footprint: callsign.com
Resolved live just now — where this domain's services actually run, with each address attributed by OrgIndex. A DNS observation, not registry data: many organisations run entirely on providers' networks and hold no IP space of their own.
Web:
3.174.141.74 → Amazon Web Services, Inc. ·
3.174.141.68 → Amazon Web Services, Inc. ·
3.174.141.73 → Amazon Web Services, Inc. ·
3.174.141.94 → Amazon Web Services, Inc.
Mail:
callsign-com.mail.protection.outlook.com → Microsoft Corporation
SPF sends via:
spf.protection.outlook.com · _spf.salesforce.com · f8abb9e7-spf.mta.getcheckrecipient.com · amazonses.com · _spf.atlassian.net · 4503460.spf07.hubspotemail.net
Separately, 1 organisation whose name resembles “callsign.com” — these may be unrelated to the domain above.