A Quiet Cornerstone of the Web
Registered nearly three decades ago, b.ns.facebook.com continues to play a vital role in the internet's address system. Created on March 29, 1997, the domain remains active with an expiration date set for March 30, 2034.
Verifiable DNS and Registration Details
According to public WHOIS records, the domain is managed by registrar RegistrarSafe, LLC. Multiple status locks are in place, including clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited, serverDeleteProhibited, serverTransferProhibited, and serverUpdateProhibited. These settings help maintain stability for this critical infrastructure component.
DNS records show b.ns.facebook.com resolves to the IPv4 address 129.134.31.12 and the IPv6 address 2a03:2880:f0fd:c:face:b00c:0:35. Both IPs are associated with AS32934, linked to Facebook, Inc. The domain also carries a TXT record with the value "v=spf1 a ~all".
It serves as one of the authoritative nameservers for facebook.com, alongside a.ns.facebook.com, c.ns.facebook.com, and d.ns.facebook.com.
Current Status and Purpose
No public website content is hosted at b.ns.facebook.com consistent with its function as a nameserver rather than a content destination. Ownership details beyond the registrar are not publicly disclosed in available records. The domain's name and DNS configuration strongly indicate its use within Facebook's broader domain management setup, though specific operational details remain internal.
This long-lived subdomain highlights how foundational DNS elements can persist for decades while supporting one of the world's largest online platforms.
