WWW.RTSAK.COM - 21sip.net
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21sip.net checked at 2025-09-29T17:34:43.982Z 124ms 39/39/39 100% R:1321sip.net
| NS | auth-ns1.verizonbusiness.com | ||||||
| A | 199.249.19.10🇺🇸 AS3378 | ||||||
| PTR | auth-ns1.verizonbusiness.com | ||||||
| NS | auth-ns2.verizonbusiness.com | ||||||
| A | 199.249.18.65🇺🇸 AS3378 | ||||||
| PTR | auth-ns2.verizonbusiness.com | ||||||
net
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AI analysis
Two name servers auth-ns1.verizonbusiness.com and auth-ns2.verizonbusiness.com are delegated to 21sip.net.
21sip.net uses the same name server configuration as other domains, such as pkt.wcom.net, mae-east.net, engrtst.net, mcidial.net and worldcom.net.
21sip.net at least partially shares name servers with other domains such as 55.166.in-addr.arpa, pagemci.com, 128.160.198.in-addr.arpa, 84.39.153.in-addr.arpa and aaa.wcom.net.
These name servers are often used together with ndcdns.vzbi.com, omzdns.vzbi.com, pdcdns.vzbi.com, auth01.ns.uu.net, auth50.ns.uu.net, auth61.ns.uu.net, auth200.ns.uu.net and auth210.ns.uu.net.
Host names with a single IP address:
auth-ns1.verizonbusiness.com points to 199.249.19.10
auth-ns2.verizonbusiness.com points to 199.249.18.65