CF1760030585099-tsm20251009080619

DNSWHOIS.INFO - ext-core.research.att.com

Search for IP or hostnames:

ext-core.research.att.com checked at 2025-10-09T17:23:05.072Z 2488ms 36/36/36 100% R:13

`ext-core.research.att.com`

	MX	`mx0a-00191d01.pphosted.com`
			A	67.231.149.140^{🇺🇸 Proofpoint}
				PTR	`mx0a-00191d01.pphosted.com`

`research.att.com`

	NS	`ns1.attdns.com`
	NS	`ns2.attdns.com`
	NS	`ns3.attdns.com`
	MX	`mx0a-00191d01.pphosted.com`
	MX	`mx0b-00191d01.pphosted.com`
	NS	`ns-bd-e1.research.att.com`
	NS	`ns-bd-e2.research.att.com`
	NS	`ns.research.att.com`
	A	135.207.255.47^{🇺🇸 AS6431}

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AI analysis

ext-core.research.att.com is handled by a single mail server, mx0a-00191d01.pphosted.com.

ext-core.research.att.com has the same mail server setup as other domains, including davek.research.att.com, bdc1tlab01.research.att.com, fp-pixb.research.att.com, h-135-197-228-21.research.att.com and h-135-207-49-97.research.att.com.

ext-core.research.att.com shares some mail servers with other domains, at least partially, such as re-d2.att.com, nlpi054.sbcis.sbc.com, c-69-176-93-221.att.com, 126695-render07.att.com and imcomvgtw03.ser.cingular.net.

These mail servers are often used with the mail servers mx0b-00191d01.pphosted.com.

mx0a-00191d01.pphosted.com points to a single IP: 67.231.149.140.

dbq

ByqUmET CF johedugfp 2025-10-09