`richardsonelectronics.us`

DNSSEC	⚠️ Not signed
A	159.203.172.236^{🇺🇸 DIGITALOCEAN159.203.160.0/20 DigitalOcean}
NS	`dbru.br.ns.els-gms.att.net` ⭐
		A	2001:1890:1ff:9f0:68:94:156:134^{🇺🇸 AS70182001:1890::/29 AT&T Enterprises, LLC}
			PTR	`dbru.br.ns.els-gms.att.net`
		A	68.94.156.134^{🇺🇸 AS701868.88.0.0/13 ARIN Allocation SBC Internet Services}
			PTR	`dbru.br.ns.els-gms.att.net`
NS	`dmtu.mt.ns.els-gms.att.net`
		A	2001:1890:1ff:9f1:99:99:99:134^{🇺🇸 AS70182001:1890::/29 AT&T Enterprises, LLC}
			PTR	`dmtu.mt.ns.els-gms.att.net`
		A	99.99.99.134^{🇺🇸 AS701899.96.0.0/13 AT&T Enterprises, LLC}
			PTR	`dmtu.mt.ns.els-gms.att.net`
SOA	`dbru.br.ns.els-gms.att.net`rm-hostmaster@ems.att.com serial=1

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1785880561

Same first word

richardsonelectronics.us

richardsonelectronics.cn

DNS History

3 records (3 active, 0 former)

●NSdbru.br.ns.els-gms.att.net2019-03-25 → 2026-08-04 · 2 obs

● 2019-03-25 01:04:52
● 2026-08-04 22:21:52

●NSdmtu.mt.ns.els-gms.att.net2019-03-25 → 2026-08-04 · 2 obs

● 2019-03-25 01:04:52
● 2026-08-04 22:21:52

●A159.203.172.2362019-03-25 → 2026-08-04 · 2 obs

● 2019-03-25 01:04:52
● 2026-08-04 22:21:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	-
richardsonelectronics.us	dmtu.mt.ns.els-gms.att.net, dbru.br.ns.els-gms.att.net	-

✅ Authoritative Response

Server:68.94.156.134

NS records: dmtu.mt.ns.els-gms.att.net, dbru.br.ns.els-gms.att.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for richardsonelectronics.us (unsigned zone)

⏱️ Timing

Total: 3532ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`159.203.172.236`
NS	2	`dbru.br.ns.els-gms.att.net, dmtu.mt.ns.els-gms.att.net`
SOA	1	`dbru.br.ns.els-gms.att.net rm-hostmaster`

Analysis

IP Addresses

richardsonelectronics.us resolves to one IP address: 159.203.172.236.

rell.org, richardson-electronics.org, rell.us and two other host names share IP numbers with richardsonelectronics.us.

Name Servers

richardsonelectronics.us uses two name servers for its delegation: dbru.br.ns.els-gms.att.net and dmtu.mt.ns.els-gms.att.net.

richardsonelectronics.us uses the same name servers as several other domains — among them bluecares.org, 142.19.12.in-addr.arpa, tasc.org and two more.

There is at least partial name server overlap between richardsonelectronics.us and other domains — retirementphases.com, cdvacationownership.com, admwinona.com and two more among them.

These name servers regularly appear alongside cmtu.mt.ns.els-gms.att.net, cbru.br.ns.els-gms.att.net, dns3.carnival.com and 7 other name servers in NS record sets.

The two host names dbru.br.ns.els-gms.att.net and dmtu.mt.ns.els-gms.att.net each have a pair of IP addresses: dbru.br.ns.els-gms.att.net has 68.94.156.134 and 2001:1890:1ff:9f0:68:94:156:134, and dmtu.mt.ns.els-gms.att.net has 99.99.99.134 and 2001:1890:1ff:9f1:99:99:99:134.

richardsonelectronics.us - robtex.com