att.net
Observed Jul 21, 2026, 19:59 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Up right now
Runs onAT&T Services
Secured byDigiCert
Registered withCSC Corporate Domains, Inc.
Also usesGoogle Search Console
tranco_1k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat att.net actually stands on - every host below is a signed observation
att.net
A / AAAA
144.160.36.42144.160.155.43
AT&T Servicesserves the site
NS
ohcu.oh.mt.np.els-gms.att.netmacu.ma.mt.np.els-gms.att.netorcu.or.br.np.els-gms.att.netwycu.wy.br.np.els-gms.att.net
att.netanswers its DNS
MX
mx-att.mail.am0.yahoodns.net
yahoodns.netreceives its email
TLS
att.com
DigiCert Incissued its certificate
DNS Records
A 2
144.160.36.42144.160.155.43
MX 1
10mx-att.mail.am0.yahoodns.net
TXT 8
v=spf1 include:_ipspf.yahoo.com ~allsafebreach-domain-verification=a9b5f447-8a17-41da-9760-047975755f63google-site-verification=z-qj8Cz-ih1b439g-Nn_OScwNvY1crUPY77heRNZNjo_5cjze8kob3y03jop5itvts6kdgjgvrq_exsumc9j6u2e7g7iccym25dxcmqx2k5_4p9pfhp11oi420ie4rq8tf5xahahkpf_o31pna3ducxknmsrbblabzaalybh5srv=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
NS 4
ohcu.oh.mt.np.els-gms.att.netmacu.ma.mt.np.els-gms.att.netorcu.or.br.np.els-gms.att.netwycu.wy.br.np.els-gms.att.net
SOA 1
wycu.wy.br.np.els-gms.att.net rm-hostmaster.ems.att.com
SRV 10
cm2.im.att.net:5222 p50cm3.im.att.net:5222 p50cm4.im.att.net:5222 p50im.att.net:5222 p5cm1.im.att.net:5222 p50cm3.im.att.net:5269 p50cm4.im.att.net:5269 p50im.att.net:5269 p5cm1.im.att.net:5269 p50cm2.im.att.net:5269 p50
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
att.com |
C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 | Tue, 23 Mar 2027 23:59:59 +0000 |
DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 | Sat, 29 Mar 2031 23:59:59 +0000 |
DigiCert Global Root G2 |
C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 | Fri, 15 Jan 2038 12:00:00 +0000 |
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_c2fd7dd55d212301- Output Hash
e52dff036b870255ed565ca513f06fc610f28076141a39849cf41f623df73cdc- Signature
ed25519:5c85ee6b0dacfb4b38cb51d7db23bae8dd6f357985c96cfb607fd236e58d2247c99a440e8a8c2d72d32d8a1917303223807a24c67fd2b1bac9b4b70a8904c202- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast