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Domain footprint: stjude.org
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:
67.91.97.105 → Verizon Business ·
174.46.34.65 → Level 3 Parent, LLC ·
66.162.22.231 → Level 3 Parent, LLC ·
216.250.140.65 → Flexential Colorado Corp.
Mail:
stjude-org.mail.protection.outlook.com → Microsoft Corporation
SPF sends via:
spf1.stjude.org · spf2.stjude.org · spf.protection.outlook.com · spf.cernerasp.com · cust-spf.exacttarget.com · sparkpostmail.com
Separately, 2 organisations whose name resembles “stjude.org” — these may be unrelated to the domain above.