Bluehost at a Glance
| Type | Web hosting company |
|---|---|
| Website | www.bluehost.com |
| Network (ASN) | AS46606 UNIFIEDLAYER-AS-1 |
| Announced IP space | 259 IPv4 prefixes (~797,952 addresses) |
| Customer nameservers | ns1.bluehost.com, ns2.bluehost.com |
| SPF include | include:bluehost.com |
Bluehost Nameservers
To host a domain with Bluehost, set these as the domain's nameservers at your registrar:
| Nameserver | IPv4 | Answered from network |
|---|---|---|
| ns1.bluehost.com | 162.159.24.80 | AS13335 Cloudflare, Inc. |
| ns2.bluehost.com | 162.159.25.175 | AS13335 Cloudflare, Inc. |
- Log in to the registrar where you bought the domain and open its DNS or nameserver settings.
- Choose custom nameservers and replace the current ones with the Bluehost nameservers above.
- Save, then wait: nameserver changes take up to 24–48 hours to spread. Follow it live with the DNS propagation checker or the NS lookup.
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Bluehost IP Ranges and ASN
Bluehost announces its address space from one autonomous system. Any website whose IP address falls in these ranges runs on Bluehost's network. Counts are from the global routing table on September 25, 2026.
| ASN | Registered name | Registry | IPv4 prefixes | IPv4 addresses | IPv6 prefixes |
|---|---|---|---|---|---|
| AS46606 | UNIFIEDLAYER-AS-1 - Unified Layer, US | arin · since 2008 | 259 | 797,952 | 0 |
Largest Bluehost IP blocks
162.214.0.0/15162.240.0.0/1550.87.0.0/16162.144.0.0/16173.254.0.0/17198.57.128.0/1767.20.64.0/1869.195.64.0/18Look up any address in these blocks with the IP lookup or the ASN lookup.
Bluehost Email DNS Records
If you use Bluehost's own email service, these are the records your domain needs. Check them afterwards with the MX lookup and the SPF checker.
SPF
Add include:bluehost.com to your SPF record. It currently expands to:
v=spf1 ip4:209.17.115.0/24 ip4:64.69.218.0/24 include:spf2.bluehost.com include:_spf.qualtrics.com include:_spf.salesforce.com include:sparkpostmail.com include:spf.mailjet.com include:spf.protection.outlook.com include:_spf.myorderbox.com include:eig.spf.a.cloudfilter.net include:spf.websitewelcome.com -allHow to Check if a Website Is Hosted on Bluehost
Enter the domain in the checker at the top of this page. It names Bluehost when one or more of these signals match, and lists each one as evidence:
- The site's IP address is inside AS46606, the network Bluehost announces (shared by Bluehost and HostGator, so the nameservers decide).
- The domain uses Bluehost nameservers (bluehost.com). This shows where DNS is managed, which is usually but not always the host.
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Bluehost FAQ
What are Bluehost's nameservers?
Bluehost customers point their domain to ns1.bluehost.com, ns2.bluehost.com. Changes take up to 24–48 hours to spread through DNS.
What is Bluehost's ASN?
Bluehost announces its IP addresses from AS46606 (UNIFIEDLAYER-AS-1, registered with ARIN).
How many IP addresses does Bluehost have?
As of September 25, 2026, Bluehost's network announces 259 IPv4 prefixes covering about 797,952 IPv4 addresses (source: RIPEstat routing data).
How can I tell if a website is hosted on Bluehost?
Run the domain through the hosting checker on this page. It reports Bluehost when the site's IP address is inside AS46606, the network Bluehost announces (shared by Bluehost and HostGator, so the nameservers decide), and it shows every matching signal as evidence.
Is Bluehost a web host or a CDN?
Bluehost is a web hosting company: it provides shared, WordPress, VPS and dedicated hosting and domains.
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Bluehost is a trademark of its owner. DNS Robot is not affiliated with Bluehost unless an offer above is marked sponsored.