`op-ccmk.att.com`

DNSSEC	⚠️ Not signed
MX	`mx0a-00191d01.pphosted.com` ⭐
		A	67.231.149.140^{🇺🇸 Proofpoint67.231.149.0/24 Inc.}
			PTR	`mx0a-00191d01.pphosted.com`
MX	`mx0b-00191d01.pphosted.com` ⭐
		A	67.231.157.136^{🇺🇸 Proofpoint67.231.157.0/24 Inc.}
			PTR	`mx0b-00191d01.pphosted.com`

`att.com`

	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	`ns0.attdns.com` ⭐
	NS	`a1-187.akam.net`
	NS	`a11-65.akam.net`
	NS	`a2-64.akam.net`
	NS	`a22-67.akam.net`
	NS	`a4-64.akam.net`
	NS	`a5-66.akam.net`
	MX	`mx0a-00191d01.pphosted.com` ⭐
	MX	`mx0b-00191d01.pphosted.com` ⭐
	TXT	`jamf-site-verification=UPRluCUJKO0tlsh28talrg`
	TXT	`google-site-verification=aEiNNWvbfCYfvmE1MB5FDlfTOXscCUfCQSBf5BsZnFQ`
	TXT	`smartsheet-site-validation=p-TbLkF_n2KWTVSks3oGAlqmEY11P06i`
	TXT	`mongodb-site-verification=XeRo7LCGNcMSCGuvCKB6RHi7fZwUjRIW`
	TXT	`bv-domain-verification=38433e129a5a4d49af430708b3d204a9ccdc03e981b1773fb2ad2b...`
	TXT	`paloaltonetworks-site-verification=7b609d2323474fad0529ed82de1c57e250820f838c...`
	TXT	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all`
	TXT	`_o7unzg1f3flq9gplgrxiex76xucouzs`
	TXT	`Dynatrace-site-verification=3ff882c3-ce12-4bdd-854f-c18fdfce82c2__j2sdcrg6o0f...`
	TXT	`2a35e1cb-656a-4618-b343-cb814065d867`
	TXT	`_pvc1rwav561hkrmdq14aycsq5pps8xi`
	TXT	`jamf-site-verification=Kzw-u7InjZzANk8Hd_p1Bw`
	TXT	`docusign=96684378-d4b4-426b-aa46-f484dcce317e`
	TXT	`google-site-verification=GfKQDZJmtFjAfLwMo0CpJSgUgQ14s6EGeH8btHERCzY`
	TXT	`safebreach-domain-verification=87a47aa8-9dcf-4fc6-a0dc-645f6d8f16b7`
	TXT	`atlassian-domain-verification=sKDPLDFqqK6UKBe8hXqLj7n47sRNeN4C0TLWOyJI9jhbsY0...`
	TXT	`google-site-verification=TDlxuIuUQhu-wSUgoz8Tuvpeevqqo4Kge7S-EJFFzrA`
	TXT	`asv=811eb48ffe1a2bd2ca5ba9d4bc7d9737`
	TXT	`Dynatrace-site-verification=782efa98-fcb0-4599-9392-282c3417bb85__mh2ditpbjlp...`
	TXT	`smartsheet-site-validation=xn6t8IWievWUEBY9LJQzhTPfVsa5dWTk`
	TXT	`TXT=apple-domain-verification=qvUUeo4rzNYBawy1GneDePGHTd_5bbfaFla5mf1Rql8`
	TXT	`BeJQ5GrhdR+RKZkfNVneBsIUT2NVqTZB01Y2FXf2+THpvzgedgBjuxOsk3Ub41a8xwwOOxLu+mJTF...`
	TXT	`formstack-domain-verification=179e16ba598bd6f0b295bc7de613ba7c`
	TXT	`box-domain-verification=73b38eccd6cf3094f59070cc1471ea94d8c8a433f4e6808d99034...`
	TXT	`canva-site-verification=xZkTnltkjuFr7azCq9432w`
	TXT	`_nf8m5hisjvxnliy43grrkcxt4775nre`
	TXT	`cisco-ci-domain-verification=3d21883a6bafd629173aea778e9e524288c5b6d037f0c3d6...`
	TXT	`4879c66f-d011-43dc-873c-ce5803b4d5a7`
	TXT	`figma-domain-verification=3818f0fcaa32c5ce227b1121b999753e8708a904218ffd80578...`
	TXT	`MS=ms45660825`
	TXT	`docker-verification=232baaa1-27ce-477a-a437-abe005244414`
	TXT	`onetrust-domain-verification=8ec279170ab14b708f0330e786a9619e`
	TXT	`docusign=edf26ba5-075c-448c-a7b4-fd68e78606b3`
	TXT	`smartsheet-site-validation=YXtB3id9XhZfupfHmACXFew-Tegm1G_p`
	TXT	`smartsheet-site-validation=WTesoI8BTRnVCtpax7RXsu095_-01e-g`
	TXT	`_lf5ez32jnsfjm9iqdgwqkvmtxmni1bv`
	TXT	`apple-domain-verification=qvUUeo4rzNYBawy1GneDePGHTd_5bbfaFla5mf1Rql8`
	TXT	`google-site-verification=61mMnbAFkug5Ga66TxJwJnHrccqsdXgjaYX4Dzh4fg4`
	TXT	`flexera-domain-verification-imnjnkcqfpmvinpy`
	TXT	`mixpanel-domain-verify=29364abe-5921-4f15-b1f9-92c168b99888`
	TXT	`google-site-verification=_tbHFE4ZquVgPnU4yn9c8mM4AwjDcnyvHYpUyY9W9A0`
	TXT	`jamf-site-verification=g-kOVDxo7U0trPWTXbALxg`
	TXT	`twilio-domain-verification=b527bfa6770ac367fc9912a1caa06323`
	TXT	`hcp-domain-verification=25fbb0ef8d96ac4f31233dc30aabe5c5ac473f766bc5e1095ddf3...`
	TXT	`Dynatrace-site-verification=26243c34-7393-4498-bfcd-7a0cc073ef06__limahdkrv1b...`
	TXT	`ff43041c-55f9-42c5-8263-b168f015ec68`
	TXT	`docusign=cd78ab12-bff3-4e95-9d5e-40b4a6c64e28`
	TXT	`censys-domain-verification=78kpf_YXBG6iZmORvVAIMSeoT9qA_Abl2TQ1NQ5BmvI2`
	TXT	`docusign=7c207f4f-1463-48ab-8a42-401d5a790153`
	TXT	`7af66ea0-faa0-4d61-a1ff-7624b9d97465`
	TXT	`postman-domain-verification=feeae2e09f081a0e723f0c57fe50bfc708665e79e72cffbf5...`
	SOA	`ns0.attdns.com`eiss-dns@att.com 2026-05-12 #1

WOT: SAFE (92/100)
rank #886 globally
rank #492 in the tld
This domain name "att.com" is associated with AT&T Inc., an American multinational conglomerate holding company. AT&T is one of the world's largest telecommunications companies and the largest provider of mobile telephone services in the U.S. The domain is primarily used for their official website where they offer details about their services, products, customer support, and more.WOT: SAFE (92/100)
📈 Tranco rank: #1,403

DNS History

3 records (2 active, 1 former)

●MXmx0a-00191d01.pphosted.com2026-02-21 → 2026-05-13 · 2 obs

● 2026-02-21 02:15:28
● 2026-05-13 13:11:28

●MXmx0b-00191d01.pphosted.com2026-02-21 → 2026-05-13 · 2 obs

● 2026-02-21 02:15:28
● 2026-05-13 13:11:28

○A144.160.243.1072018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 12:18:24
○ 2026-02-21 02:15:28
○ 2026-05-13 13:11:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net...	-
att.com	a5-66.akam.net, a22-67.akam.net, a11-65.akam.net, a2-64.akam.net...	-

✅ Authoritative Response

Server:95.100.168.66

NS records: a5-66.akam.net, a22-67.akam.net, a11-65.akam.net, a2-64.akam.net, a1-187.akam.net, a4-64.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for att.com (unsigned zone)

⏱️ Timing

Total: 1760ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	2	`mx0b-00191d01.pphosted.com (pri: 10), mx0a-00191d01.pphosted.com (pri: 10)`

Analysis

Mail Servers

op-ccmk.att.com is served by two mail servers mx0a-00191d01.pphosted.com and mx0b-00191d01.pphosted.com.

op-ccmk.att.com shares the same mail server setup as other domains, for instance iiwc1-da.dlife.att.com, oimagt02.ser.cingular.net, flpi123.sbcis.sbc.com, postmaster.sbc.com and primeaccess.att.com.

op-ccmk.att.com shares some mail servers with other domains, at least in part, for example extweb.research.att.com.

Host names with a single IP address: mx0a-00191d01.pphosted.com points to 67.231.149.140; mx0b-00191d01.pphosted.com points to 67.231.157.136.

op-ccmk.att.com - robtex.com

op-ccmk.att.com

att.com