Domain lookup
att.com
Hosted by AT&T Services, Inc. (AS797) in United States · Tranco rank #850 · 🇫🇷 Top 100K in France · registered 1986
Hosting
144.160.155.43AS797 AT&T Services, Inc. · 🇺🇸 United States · Clean
144.160.36.42AS797 AT&T Services, Inc. · 🇺🇸 United States · Clean
Technologies
FrameworkVue
CDN / protectionAkamai
ProtocolTLS 1.3 · HTTP/2
Security headersHSTS 6+ months CSP Frame protection nosniff Referrer-Policy
SourceHome page probe · 4 Oct 2026 · statistics · about this probe
DNS records
Name serversAkamai
a1-187.akam.net
a11-65.akam.net
a2-64.akam.net
a22-67.akam.net
a4-64.akam.net
a5-66.akam.net
a1-187.akam.net
a11-65.akam.net
a2-64.akam.net
a22-67.akam.net
a4-64.akam.net
a5-66.akam.net
Mail serversProofpoint
10 mx0a-00191d01.pphosted.com
10 mx0b-00191d01.pphosted.com
20 mxa-00191d01.gslb.pphosted.com
20 mxb-00191d01.gslb.pphosted.com
10 mx0a-00191d01.pphosted.com
10 mx0b-00191d01.pphosted.com
20 mxa-00191d01.gslb.pphosted.com
20 mxb-00191d01.gslb.pphosted.com
SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
DMARCv=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
Registration
RegistrarCSC Corporate Domains, Inc. (IANA #299)
Created1986-04-25 · 40 years ago
Expires2027-04-26 · in 6 months
Last changed2026-04-22
Statustransfer locked, delete locked, update locked
DNSSECnot signed
SourceRDAP · rdap.verisign.com
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Known domains: the Tranco top 1M (most popular sites worldwide), the sites most visited in 238 countries (Chrome UX Report), every active .fr domain (AFNIC open data), every .nu, .ee, .se, .ch, .li, .sk domain (registry zone files), every domain of 1021 generic TLDs such as .org, .pro, .cloud (ICANN CZDS zone files) and domains seen in new certificates (Certificate Transparency logs, .com and .net included, collected since 30 September 2026), resolved regularly — updated continuously, last update 2026-10-09. Not exhaustive: other sites may share this address.
From our weekly resolution of the Tranco top 1M (last run 2026-10-03). JSON: /domain/att.com?format=json