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ARMSTRONG OIL and GAS is a Denver, CO-based company in the Business Services sector.
SMS/800 is a centralized system that performs Toll Free (800, 877, 888, 866 and 855) number management. At this time, planning is underway for the future Toll Free codes of 844 and 833. All Toll Free Service Providers that assign Toll Free numbers for use within the North American Numbering Plan (NANP) must use SMS/800 to verify the availability of specific numbers, reserve them, create Customer Records, and download records to Service Control Points (SCPs) to facilitate call processing.
Hillestad Pharmaceuticals is a Woodruff, WI-based company in the Business Services sector.
Optica (formerly known as The Optical Society and before that as the Optical Society of America) is a professional society of individuals and companies with an interest in optics and photonics.