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Transaction Network Services
Since 1990, TNS has been a preferred supplier of networking and integrated data services to many leading organizations in the global payments and financial communities, as well as a provider of extensive telecommunications network solutions to service providers.
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Transaction Network Services

Two Digit Code | KL |
Five Digit Code | KLS01 |
Additional Name(s) | TNSI |
Total Numbers | 1,463 |
Trouble Referral # | 703-453-8500 |
Mailing Address | 10740 Parkridge Boulevard Suite 100 Reston, VA 20191 |
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We've helped tens of thousands of customers get great numbers over the past 25+ years
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RJ Polly
Weston, CT
“Hey Guys! Just a word of thanks for all you do. Every time I need something you're right there! Great service and the most knowledgeable people in the business. Keep up the excellent work!”
Dr A J DiCesaro
Pittsburgh, PA
“In my business I have a lot of clients that need that hard to find Toll Free numbers. I am thankful that I have a place that I can find them using TollFreeNumbers.com. Bill and Rita are great to work with they treat everyone like we are part of the family. I would recommend their service to anyone looking for a Toll Free number. Thank you, Kelly Spencer, Voice in a Cloud”
Kelly Spencer
Riverton, UT