> We provide a full range of phone and Internet services in over seven southern New Hampshire communities, including
Local and Long Distance Calling
- Chester
- East Deering
- Hillsborough Upper Village
- Sandown
- Washington
- Weare
- Windsor
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High Speed Internet
- Bow (portions of this town; call to check availability for a specific address)
- Chester
- Dunbarton
- East Deering
- Hillsborough Upper Village
- Sandown
- Washington
- Weare
- Windsor
- Learn More
PC Security & Support Services
- Nationwide
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Website Development
- Nationwide
- Learn More
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Did you know?
Did you know?
GSC is one of more than 1300 independent telephone companies…
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GSC started in 1877 as the Chester and Derry Telegraph Company…
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GSC is a merger of what was once four separate telephone companies…
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GSC is at the forefront of technology in the state…
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Our voice and data traffic is carried over an ultra high-speed fiber network…
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Our advanced high-speed Internet network offers connection speeds of up to 50Mbps…
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Our next generation technology offers you an array of advanced call management services…
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GSC has been offering Internet and Long Distance services for almost 15 years
In the year 2000 GSC became the first traditional telephone company in NH to offer High Speed Internet service
