Brief Overview

Neustar is a provider of telephony services such as number portability, as well as DNS and DDOS security protection.


21575 Ridgetop Circle
Sterling, Virginia 20166
Tel: (571) 434 – 5400


Charles E. Gottdienerserves as President and CEO of Neustar. Mr. Gottdiener has a 30-year track record of leading information services and technology companies.


Neustar was spun off from Lockheed Martin in 1999 to ensure neutrality in its mission of providing administration of the North American Numbering Plan. The company went public on the NYSE in 2005. The company is headquartered in Virginia with locations across the US, India, Australia, Japan, UK, and Costa Rica.

Key Acquisitions

Webmetrics (2008)
Aggregate Knowledge (2013)
.CO Internet (2014)
Bombora Technologies (2015)
MarketShare Partners (2015)

Key Competitors


Products and Services

In additional to Neustar’s telephony and domain services, the company provides its SiteProtect DDOS security solutions for enterprise. The security suite of services includes DDOS protection, DDOS mitigation, fraud prevention, Website monitoring, IP intelligence, and related DNS security services. DNS services and protections focus on enterprise and SMB. DDOS services are available on-demand and always-on, as well as on-premise and cloud-based.