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att.com

Every SSL/TLS certificate ever issued for this name, indexed from public CT logs.

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total records
2,177
active · on this page
0
expired · on this page
20
unique issuers · on this page
1
issuers on this pageDigiCert20
domainstatus
d1c1m293.vci.att.comcrt.sh
DigiCert
expired 3mo ago
d1c1w133.vci.att.comcrt.sh
DigiCert
expired 3mo ago
d1c1w90.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1m563.vci.att.comcrt.sh
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expired 3mo ago
t1c1m564.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1m565.vci.att.comcrt.sh
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expired 3mo ago
t1c1m566.vci.att.comcrt.sh
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expired 3mo ago
t1c1m567.vci.att.comcrt.sh
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expired 3mo ago
t1c1m902.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1m903.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1m904.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1m905.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1w156.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1w157.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1w158.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1w159.vci.att.comcrt.sh
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expired 3mo ago
t1c1w160.vci.att.comcrt.sh
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expired 3mo ago
t1c1w279.vci.att.comcrt.sh
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expired 3mo ago
t1c1w280.vci.att.comcrt.sh
DigiCert
expired 3mo ago
t1c1w281.vci.att.comcrt.sh
DigiCert
expired 3mo ago
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar att.com | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar att.com | nuclei
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About certificate history for att.com

This page lists every X.509 (SSL/TLS) certificate ever issued for att.com and its subdomains, as recorded in public Certificate Transparency (CT) logs. CT logs are an immutable, append-only record of every certificate issued by participating Certificate Authorities (CAs), as required by the major browsers since 2018.

Subdomain enumeration via CT logs is one of the highest-signal techniques in reconnaissance — every time a TLS certificate is issued, all Subject Alternative Names (SANs) on that certificate become public. Internal and forgotten subdomains regularly show up here days after they're set up.

To monitor att.com for newly-issued certificates in real-time (useful for detecting unauthorized issuance, phishing variants, or shadow IT) add it to your watchlist (Pro plan).