`opusmobiled13.att.net`

DNSSEC	⚠️ Not signed
A	144.160.218.227^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
NS	`gd1a.attdns.com` ⚠️ Not in zone NS records
		A	144.160.99.54^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`gd1a.attdns.com`
NS	`gd2a.attdns.com` ⚠️ Not in zone NS records
		A	144.160.128.155^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`gd2a.attdns.com`
NS	`gd3a.attdns.com` ⚠️ Not in zone NS records
		A	144.160.20.44^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`gd3a.attdns.com`
NS	`gd4a.attdns.com` ⚠️ Not in zone NS records
		A	144.160.229.15^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
			PTR	`gd4a.attdns.com`

`att.net`

	DNSSEC	⚠️ Not signed
	A	144.160.36.42^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
	A	144.160.155.43^{🇺🇸 AS797144.160.0.0/15 AT&T Services, Inc.}
	NS	`wycu.wy.br.np.els-gms.att.net` ⭐
	NS	`macu.ma.mt.np.els-gms.att.net`
	NS	`ohcu.oh.mt.np.els-gms.att.net`
	NS	`orcu.or.br.np.els-gms.att.net`
	MX	`mx-att.mail.am0.yahoodns.net` ⭐
	TXT	`_o31pna3ducxknmsrbblabzaalybh5sr`
	TXT	`v=spf1 include:_ipspf.yahoo.com ~all`
	TXT	`safebreach-domain-verification=a9b5f447-8a17-41da-9760-047975755f63`
	TXT	`google-site-verification=z-qj8Cz-ih1b439g-Nn_OScwNvY1crUPY77heRNZNjo`
	TXT	`_5cjze8kob3y03jop5itvts6kdgjgvrq`
	TXT	`_exsumc9j6u2e7g7iccym25dxcmqx2k5`
	TXT	`_4p9pfhp11oi420ie4rq8tf5xahahkpf`
	SOA	`wycu.wy.br.np.els-gms.att.net`rm-hostmaster@ems.att.com serial=1584

WOT: SAFE (88/100)
rank #3110 globally
rank #88 in the tld
This domain name, "att.net", is associated with the American telecommunications company AT&T. It is used as a portal for various web-based services such as email, news, entertainment, and more, particularly for customers of AT&T.WOT: SAFE (88/100)
📈 Tranco rank: #685

AT&T Communications

att.net is the primary consumer-facing domain for AT&T Inc., one of the largest telecommunications companies in the United States. AT&T provides wireless services, broadband internet, digital television, and business communications solutions to millions of customers nationwide. The att.net domain serves as the home for AT&T's legacy email services, originally from SBC Communications and BellSouth acquisitions.

Services

Wireless: One of the "Big Three" U.S. mobile carriers
Internet: Fiber and DSL broadband services (AT&T Fiber, AT&T Internet)
Email: Free email accounts for AT&T subscribers (@att.net addresses)
Business Solutions: Enterprise networking, cybersecurity, and cloud services

Technical Infrastructure

The domain runs entirely on AT&T's own infrastructure:

Hosting: Served from AS797 (AT&T Services) with IPs in the 144.160.0.0/16 range
Nameservers: Four geographically distributed DNS servers on AS7018 (AT&T Services) located in Wyoming, Massachusetts, Ohio, and Oregon
Email: Mail is handled by Yahoo (mx-att.mail.am0.yahoodns.net), reflecting the 2017 partnership where Yahoo took over AT&T email operations
DNSSEC: Not enabled

AT&T traces its origins to Alexander Graham Bell's original Bell Telephone Company (1877), making it one of the oldest telecommunications entities in existence.

DNS History

8 records (5 active, 3 former)

●NSgd1a.attdns.com2026-04-08 → 2026-05-10 · 2 obs

● 2026-04-08 02:11:50
● 2026-05-10 10:00:30

●NSgd2a.attdns.com2026-04-08 → 2026-05-10 · 2 obs

● 2026-04-08 02:11:50
● 2026-05-10 10:00:30

●NSgd3a.attdns.com2026-04-08 → 2026-05-10 · 2 obs

● 2026-04-08 02:11:50
● 2026-05-10 10:00:30

●NSgd4a.attdns.com2026-04-08 → 2026-05-10 · 2 obs

● 2026-04-08 02:11:50
● 2026-05-10 10:00:30

○A144.160.113.2272020-02-06 → 2020-07-23 · 7 obs

○ 2019-08-20 13:00:12
● 2020-02-06 04:01:06
○ 2020-02-18 12:06:50
○ 2020-06-10 21:04:02
● 2020-07-23 00:50:16
○ 2020-12-24 22:01:18
○ 2026-05-10 10:00:30

●A144.160.218.2272018-12-15 → 2026-05-10 · 6 obs

● 2018-12-15 06:31:40
● 2019-08-20 13:00:12
○ 2020-02-06 04:01:06
○ 2020-12-24 22:01:18
● 2026-04-08 02:11:50
● 2026-05-10 10:00:30

○A144.160.248.2272020-02-18 → 2020-06-10 · 5 obs

○ 2020-02-06 04:01:06
● 2020-02-18 12:06:50
● 2020-06-10 21:04:02
○ 2020-07-23 00:50:16
○ 2026-05-10 10:00:30

○A144.161.180.2272020-12-24 → 2020-12-24 · 4 obs

○ 2020-07-23 00:50:16
● 2020-12-24 22:01:18
○ 2026-04-08 02:11:50
○ 2026-05-10 10:00:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	j.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net...	-
att.net	macu.ma.mt.np.els-gms.att.net, ohcu.oh.mt.np.els-gms.att.net, orcu.or.br.np.els-gms.att.net, wycu.wy.br.np.els-gms.att.net	4 records
opusmobiled13.att.net	gd2a.attdns.com, gd3a.attdns.com, gd4a.attdns.com, gd1a.attdns.com	-

✅ Authoritative Response

Server:144.160.229.15

NS records: gd2a.attdns.com, gd3a.attdns.com, gd4a.attdns.com, gd1a.attdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for att.net (unsigned zone)

⏱️ Timing

Total: 576ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`144.160.218.227`

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (macu.ma.mt.np.els-gms.att.net, ohcu.oh.mt.np.els-gms.att.net, orcu.or.br.np.els-gms.att.net...)

Analysis

IP Addresses

opusmobiled13.att.net points to a single IP number: 144.160.218.227.

Name Servers

opusmobiled13.att.net is delegated to four name servers: gd1a.attdns.com, gd2a.attdns.com, gd3a.attdns.com and gd4a.attdns.com.

opusmobiled13.att.net at least partially shares name servers with other domains, for instance opusmobile-prod-test.att.net, xpayorder.att.com, login-sp.att.net, mps-lp.att.com and loginprodxc.att.net.

Host names with a single IP address

gd1a.attdns.com points to 144.160.99.54

gd2a.attdns.com points to 144.160.128.155

gd3a.attdns.com points to 144.160.20.44

gd4a.attdns.com points to 144.160.229.15

opusmobiled13.att.net - robtex.com