ROBTEX.COM - p-dns-ext-l-01.nsf.gov

Search for IP or hostnames:

p-dns-ext-l-01.nsf.gov checked at 2025-12-05T03:10:30.459Z 794ms 29/29/29 100% R:12 allDone:true timedOut:false

p-dns-ext-l-01.nsf.gov

A2620:10f:6001:2::55🇺🇸 NSF-HQ-AS
PTRns1.nsf.gov
PTRp-dns-ext-l-01.nsf.gov

nsf.gov

NSns1.nsf.gov
NSns2.nsf.gov
MXalt1.us.etp.fireeyegov.com
MXalt2.us.etp.fireeyegov.com
MXalt3.us.etp.fireeyegov.com
MXprimary.us.etp.fireeyegov.com
A2620:10f:6002:221::244🇺🇸 NSF-HQ-AS
A128.150.221.244🇺🇸 NSF-HQ-AS
rank #1263 globally
rank #60 in the tld
This domain name "nsf.gov" belongs to the National Science Foundation, an independent agency of the United States government that provides funding for approximately a quarter of all federally supported basic research conducted by America's colleges and universities. The NSF also supports research in non-medical fields of science and engineering.

PTR for

5.5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.1.0.0.6.f.0.1.0.0.2.6.2.ip6.arpa

AI analysis

p-dns-ext-l-01.nsf.gov points to a single IP: 2620:10f:6001:2::55.

Other host names, for instance ns1.nsf.gov, share IP numbers with p-dns-ext-l-01.nsf.gov.