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🔍 Check My IP Address →| IP Address | 156.154.70.1 |
| Owner / Organization | Neustar |
| Type | Public DNS Server |
| Hostname | rdns1.ultradns.net |
| ASN | AS19108 |
| ISP | Neustar Security Services |
| Location | Sterling, Virginia, US |
| Common Ports | 53 (DNS) |
| Safe to Connect? | ✅ Yes |
What Is 156.154.70.1?
156.154.70.1 is a well-known IP address owned and operated by Neustar. It is classified as a Public DNS Server and is primarily used for: Neustar UltraDNS public resolver. A fast and reliable DNS service operated by Neustar, widely used in enterprise environments and as a personal alternative to Google DNS.
The address belongs to Autonomous System AS19108, registered to Neustar Security Services. If you have seen 156.154.70.1 appear in your network logs, firewall rules, or router settings, it is almost certainly legitimate traffic related to Neustar’s services.
Is 156.154.70.1 Safe?
✅ Yes, 156.154.70.1 is safe. This IP address belongs to Neustar, a reputable organization. It is not associated with malicious activity, spam, or known threat actors. Seeing it in your network traffic is normal if you use Neustar’s services.
Who Owns 156.154.70.1?
156.154.70.1 is registered under ASN AS19108
and is allocated to Neustar.
The address resolves to the hostname rdns1.ultradns.net
and is geographically associated with Sterling, Virginia, US.
IP address ownership data is publicly available through the Regional Internet Registries (RIRs) such as ARIN, RIPE NCC, and APNIC. You can verify ownership of any IP at any time using a WHOIS lookup.
How to Protect Your Own IP Address
Just like 156.154.70.1 is publicly visible and traceable back to Neustar, your personal IP address is visible to every website you visit. Websites, advertisers, and even bad actors can see your approximate location and ISP from your IP alone.
The easiest way to hide your IP is to use a VPN (Virtual Private Network). A VPN replaces your real IP with one of the VPN provider’s servers, making you anonymous online.
Frequently Asked Questions About 156.154.70.1
Who owns 156.154.70.1?
Is Neustar DNS reliable?
What is the secondary DNS for Neustar?
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- Check your IP address instantly (free tool)
Last updated: March 28, 2026 • Data sourced from public WHOIS / ARIN / RIPE registries. Report an error