CONTINUOUS INTERNET TELEMETRY24H DRIFT10,185 material changesacross 9,777 domains · -444 vs yesterdayDNS DRIFT650 domains changed DNS providertop destination cloudflare.com · -130 vs yesterdayEMAIL DRIFT189 domains switched email providertop destination outlook.com · +19 vs yesterdayCERT DRIFT222 domains switched issuing CA24h · -8 vs yesterdayNOW700 curated domains not reachable-649 vs yesterdaySITE ERRORS18,020 sites serving errorslast probe · 5xx / 404 / TLSTHROTTLED96,403 throttled or blocked our scanner429 rate-limit / 403 bot-block

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

  • 144.160.36.42
  • 144.160.155.43

MX 1

  • 10mx-att.mail.am0.yahoodns.net

TXT 8

  • v=spf1 include:_ipspf.yahoo.com ~all
  • safebreach-domain-verification=a9b5f447-8a17-41da-9760-047975755f63
  • google-site-verification=z-qj8Cz-ih1b439g-Nn_OScwNvY1crUPY77heRNZNjo
  • _5cjze8kob3y03jop5itvts6kdgjgvrq
  • _exsumc9j6u2e7g7iccym25dxcmqx2k5
  • _4p9pfhp11oi420ie4rq8tf5xahahkpf
  • _o31pna3ducxknmsrbblabzaalybh5sr
  • v=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.net
  • macu.ma.mt.np.els-gms.att.net
  • orcu.or.br.np.els-gms.att.net
  • wycu.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 p50
  • cm3.im.att.net:5222 p50
  • cm4.im.att.net:5222 p50
  • im.att.net:5222 p5
  • cm1.im.att.net:5222 p50
  • cm3.im.att.net:5269 p50
  • cm4.im.att.net:5269 p50
  • im.att.net:5269 p5
  • cm1.im.att.net:5269 p50
  • cm2.im.att.net:5269 p50

TLS Certificates (3)

Common NameIssuerExpires
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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for att.net. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for att.net <a href="https://domaindrift.io/t/att.net"> <img src="https://domaindrift.io/badge/att.net.svg" width="300" height="64" alt="DomainDrift signed observations for att.net"> </a>

Ed25519 Receipt

Receipt ID
rcpt_c2fd7dd55d212301
Output Hash
e52dff036b870255ed565ca513f06fc610f28076141a39849cf41f623df73cdc
Signature
ed25519:5c85ee6b0dacfb4b38cb51d7db23bae8dd6f357985c96cfb607fd236e58d2247c99a440e8a8c2d72d32d8a1917303223807a24c67fd2b1bac9b4b70a8904c202
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser