* Flood damages Verizon backup generators in NYC

* AT&T, T-Mobile USA customers say service is spotty

* Cablevision, Sprint see widespread issues

By Sinead Carew

NEW YORK, Oct 30 (Reuters) - Power outages and flooding caused by Hurricane Sandy disrupted telecommunications services on Tuesday resulting in spotty coverage for cellphones, home telephones and Internet services.

Verizon Communications, which serves many of the states in the hurricane's path, a ppeared to have suffered some of the worst damage from the storm.

The company said that storm surge resulted in flooding at several Verizon central offices that hold telecom equipment in Lower Manhattan, Queens, and Long Island "causing power failures and rendering back-up power systems at these sites inoperable."

It did not give an estimate as to how many people were affected but said that customers served by these central offices will experience "a loss of all services" including television, Internet, and traditional telephone services.

It said that some customers may experience intermittent busy signals for non-emergency calls.

"I think, everybody's equipment's going to be damaged including cellphone towers," Stifel Nicolaus analyst Christopher King said from his Verizon Wireless cellphone in Baltimore, Maryland.

"Particularly for Verizon, they're clearly going to have the most damage on the wireline side because its pretty much all of their territory (where the storm hit)," King said.

Verizon said that its engineers were on site from the early hours and were still trying to assess the da mage late morning on Tuesday. Outside of New York, the company warned that it was also having some trouble.

"Verizon is discovering that many poles and power lines/Verizon cables are down throughout the region due to heavy winds and falling trees," the company said in a statement.

Sprint Nextel, the No. 3 U.S. mobile provider said it was seeing outages at some cell sites because of the power outages across all the states in Sandy's path including New York, New Jersey, Connecticut, Pennsylvania, Washington DC, Maryland, North Virginia and New England.

"(Repair crews) have started on some critical areas but they haven't been able to get to everywhere they need to be," spokeswoman Crystal Davis said. She noted that 80 of the company's stores would reopen at noon. Sprint had closed about 180 stores ahead of the storm.

T-Mobile USA said that "customers may be experiencing service disruptions or an inability to access service in some areas, especially those that were hardest hit by the storm. "

People complained of outages to their cable telephone, Internet and television services from providers ranging from Comcast Corp, Cablevision Systems Corp and Verizon in New Jersey, Connecticut, and New York.

Cablevision said it was experiencing widespread service interruptions primarily related to loss of power. The company said it is working to restore services.

Comcast , whose headquarters is in Philadelphia and serves East C o ast states, s aid it was still assessing the impact of the storm on its service.

Cellphone service also appeared to be spotty for other top wireless providers Verizon Wireless, AT&T Inc and T-Mobile USA, a unit of Deutsche Telekom, according to some customers. Verizon Wireless is a venture of Verizon Communications and Vodafone Group.

AT&T said it was experiencing some issues in areas heavily affected by the storm. By Tuesday morning spokesman Mark Siegel said it was in the initial stages of on-the-ground assessment and expected "crews will be working around the clock to restore service."

Verizon Wireless said it was assessing the situation on Tuesday morning.

Several Time Warner Cable customers in Brooklyn said that their Internet, television and phone services stopped working Monday night but were back again by Tuesday morning.

Time Warner Cable said that while it has not seen any major damage to its infrastructure, its customers who do no have electricity do not have cable services.

Millions of people in the eastern United States awoke on Tuesday to flooded homes, fallen trees and widespread power outages caused by Sandy, which swamped New York City's subway system and submerged streets in Manhattan's financial district.

At least 15 people were reported killed in the United States by one of the biggest storms to ever hit the country. Sandy dropped just below hurricane status before making landfall on Monday night in New Jersey.

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  • A casket floated out of the grave in a cemetery in Crisfield, Md. after the effects of superstorm Sandy Tuesday, Oct. 30, 2012. Hundreds of people were displaced by floodwaters in Ocean City and in Crisfield. At the same time, 2 feet of snow fell in westernmost Garrett County, were nearly three-quarters of residents lost power. (AP Photo/Alex Brandon)

  • An ambulance is submerged in floodwaters in the wake of superstorm Sandy on Tuesday, Oct. 30, 2012, in Hoboken, N.J. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Mike Groll)

  • A vehicle drives on a flooded street in the wake of superstorm Sandy on Tuesday, Oct. 30, 2012, in Hoboken, N.J. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Mike Groll)

  • A firehouse is surrounded by floodwaters in the wake of superstorm Sandy on Tuesday, Oct. 30, 2012, in Hoboken, N.J. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Mike Groll)

  • A vehicle drives on a flooded street in the wake of superstorm Sandy on Tuesday, Oct. 30, 2012, in Little Ferry, N.J. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Mike Groll)

  • An emergency vehicle drives on a flooded street in Little Ferry, N.J. in the wake of superstorm Sandy on Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Mike Groll)

  • An emergency vehicle drives on a flooded street in Little Ferry, N.J. in the wake of superstorm Sandy on Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Mike Groll)

  • Rescue workers help stranded people out of their flooded homes in Seaside Heights, N.J., following the arrival of superstorm Sandy, Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Julio Cortez)

  • Rescue workers help stranded people out of their flooded homes in Seaside Heights, N.J., following the arrival of superstorm Sandy, Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Julio Cortez)

  • A runway at the Teterboro Airport is flooded in the wake of superstorm Sandy on Tuesday, Oct. 30, 2012, in New York. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Mike Groll)

  • Homes in Bethany Beach, Del. are surrounded by floodwaters from superstorm Sandy on Tuesday, Oct. 30, 2012. Officials said Bethany and nearby Fenwick Island appeared to be among the hardest-hit parts of the state. (AP Photo/Randall Chase)

  • Floodwaters from superstorm Sandy surround homes in South Bethany, Del. Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/The Wilmington News-Journal, Robert Craig) NO SALES

  • Floodwaters from superstorm Sandy surround homes in South Bethany, Del. Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/The Wilmington News-Journal, Robert Craig) NO SALES

  • Downed power lines and a battered road is what superstorm Sandy left behind as people walk off the flooded Seaside Heights island, Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Julio Cortez)

  • This photo provided by the Metropolitan Transportation Authority shows the South Ferry subway station after it was flooded by seawater during superstorm Sandy on Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/ Metropolitan Transportation Authority)

  • Debris litters the beach north of Indian River Inlet in southern Delaware after waves churned up by superstorm Sandy demolished hundreds of yards of beach dunes and left state Route 1, the major north-south coastal highway, covered in sand. (AP Photo/Randall Chase)

  • This photo provided by the Metropolitan Transportation Authority shows the South Ferry subway station after it was flooded by seawater during superstorm Sandy on Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/ Metropolitan Transportation Authority)

  • This photo provided by the Metropolitan Transportation Authority shows the South Ferry subway station after it was flooded by seawater during superstorm Sandy on Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/ Metropolitan Transportation Authority)

  • Streets around a Con Edison substation are flooded as the East River overflows into the Dumbo section of Brooklyn, N.Y., as Sandy moves through the area on Monday, Oct. 29, 2012. After a gigantic wall of water defied elaborate planning and swamped underground electrical equipment at a Consolidated Edison substation in Manhattan's East Village, about 250,000 lower Manhattan customers were left without power. (AP Photo/Bebeto Matthews)

  • In this Monday, Oct. 29, 2012, file photo, Consolidated Edision trucks are submerged on 14th Street near the ConEd power plant in New York. After a gigantic wall of water defied elaborate planning and swamped underground electrical equipment at a Consolidated Edison substation in Manhattan's East Village, about 250,000 lower Manhattan customers were left without power. (AP Photo/John Minchillo)

  • Downed power lines and a battered road is what superstorm Sandy left behind as people walk off the flooded Seaside Heights island, Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Julio Cortez)

  • This photo taken Tuesday, Oct. 30, 2012, shows what appear to be transformers exploding after much of lower Manhattan lost power during hurricane Sandy in New York. After a gigantic wall of water defied elaborate planning and swamped underground electrical equipment at a Consolidated Edison substation in Manhattan's East Village, about 250,000 lower Manhattan customers were left without power. (AP Photo/Karly Domb Sadof)

  • Peter Andrews removes belongings from his father's beachfront home, destroyed in the aftermath of a storm surge from the superstorm Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. Andrews, 40, who was born in the house, said "we had a lot of storms and the only damage in the past was when a national guardsman threw a sandbag through the window." He added, the house was in the process of being sold. (AP Photo/Bebeto Matthews)

  • A small shop that rents personal water craft rests in a huge sinkhole on the bayside in Ocean City, N.J. Tuesday, Oct. 30, 2012 after a storm surge from superstorm Sandy Monday night. (AP Photo/Mel Evans)

  • A beachfront house is completely destroyed in the aftermath of a superstorm Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. (AP Photo/Bebeto Matthews)

  • The entrance to a beachfront house is destroyed in the aftermath of a storm surge from superstorm Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. (AP Photo/Bebeto Matthews)

  • A second floor closet is exposed in a beachfront house in the aftermath of a storm surge from Hurricane Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. (AP Photo/Bebeto Matthews)

  • People stop along the Brooklyn waterfront to photograph the Brooklyn Bridge and the Manhattan skyline, Tuesday, Oct. 30, 2012 in New York. Much of lower Manhattan is without electric power following the impact of superstorm Sandy. (AP Photo/Mark Lennihan)

  • Marcus Konner, 22, boards his home in the aftermath of a storm surge from Hurricane Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. (AP Photo/Bebeto Matthews)

  • People walk through the houses destroyed in the aftermath of yesterday's storm surge from superstorm Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. (AP Photo/Bebeto Matthews)

  • Carlo Popolano stands outside his beachfront home, damaged in superstorm Sandy, on Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. Popolano said he was watching the storm with his son and "everything was okay until about 7:30 and then one big wave came and washed away our whole backyard." (AP Photo/Bebeto Matthews)

  • A beachfront house is completely destroyed in the aftermath of yesterday's surge from superstorm Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. (AP Photo/Bebeto Matthews)

  • A backyard is inundated with floodwaters in the aftermath of Sandy, Tuesday, Oct. 30, 2012, in Lewes, Del. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Randall Chase)

  • A car is upended on a mailbox on Surf Avenue in Coney Island, N.Y., in the aftermath of Sandy on Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Ralph Russo)

  • This handout photo provided by NOAA, taken Tuesday, Oct. 30, 2012, shows post-tropical storm Sandy off the East Coast of the US. Campaign 2012 is rich with images that conjure the seriousness and silliness that unfold side-by-side in any presidential race. Who could have predicted that a superstorm would overshadow and scramble the presidential campaign in its final days? President Barack Obama and Mitt Romney revised and re-revised their campaign schedules as Hurricane Sandy, a most unlikely October surprise, barreled up the East Coast and then roared ashore in New Jersey. (AP Photo/NOAA)

  • A parking lot full of yellow cabs is flooded as a result of superstorm Sandy on Tuesday, Oct. 30, 2012 in Hoboken, NJ. (AP Photo/Charles Sykes)

  • A beachfront house is damaged in the aftermath of yesterday's surge from superstorm Sandy, Tuesday, Oct. 30, 2012, in Coney Island's Sea Gate community in New York. (AP Photo/Bebeto Matthews)

  • A car is upended on a mailbox on Surf Avenue in Coney Island, N.Y., in the aftermath of Sandy on Tuesday, Oct. 30, 2012. Sandy, the storm that made landfall Monday, caused multiple fatalities, halted mass transit and cut power to more than 6 million homes and businesses. (AP Photo/Ralph Russo)

  • Damage caused by a fire at Breezy Point is shown Tuesday, Oct. 30, 2012, in New York. A fire department spokesman says more than 190 firefighters are at the blaze in the Breezy Point section. Fire officials say the blaze was reported around 11 p.m. Monday in an area flooded by the superstorm that began sweeping through earlier. (AP Photo/Frank Franklin II)

  • Fire still burns at the scene of a fire in Breezy Point, in the New York City borough of Queens Tuesday, Oct. 30, 2012, in New York. The fire destroyed between 80 and 100 houses Monday night in the flooded neighborhood. More than 190 firefighters have contained the six-alarm blaze fire, but they are still putting out some pockets of fire. (AP Photo/Frank Franklin II)

  • East Coast Begins To Clean Up And Assess Damage From Hurricane Sandy

    ATLANTIC CITY, NJ - OCTOBER 30: People stand on a mound of construction dirt to vew the area where a 2000-foot section of the 'uptown' boardwalk was destroyed by flooding from Hurricane Sandy on October 30, 2012 in Atlantic City, New Jersey. The storm has claimed at least 33 lives in the United States, and has caused massive flooding accross much of the Atlantic seaboard. US President Barack Obama has declared the situation a 'major disaster' for large areas of the US East Coast including New York City. (Photo by Mario Tama/Getty Images)

  • Homes damaged by a fire at Breezy Point are shown, in the New York City borough of Queens Tuesday, Oct. 30, 2012, in New York. The fire destroyed between 80 and 100 houses Monday night in the flooded neighborhood. More than 190 firefighters have contained the six-alarm blaze fire, but they are still putting out some pockets of fire. (AP Photo/Frank Franklin II)

  • East Coast Begins To Clean Up And Assess Damage From Hurricane Sandy

    ATLANTIC CITY, NJ - OCTOBER 30: A man walks over debsris where a 2000-foot section of the 'uptown' boardwalk was destroyed by flooding from Hurricane Sandy on October 30, 2012 in Atlantic City, New Jersey. The storm has claimed at least 33 lives in the United States, and has caused massive flooding accross much of the Atlantic seaboard. US President Barack Obama has declared the situation a 'major disaster' for large areas of the US East Coast including New York City. (Photo by Mario Tama/Getty Images)

  • East Coast Begins To Clean Up And Assess Damage From Hurricane Sandy

    NEW YORK, NY - OCTOBER 30: Ground Zero is seen on October 30, 2012 in the Financial District of New York, United States. The storm has claimed at least 33 lives in the United States, and has caused massive flooding accross much of the Atlantic seaboard. US President Barack Obama has declared the situation a 'major disaster' for large areas of the US East Coast including New York City. (Photo by Andrew Burton/Getty Images)

  • US-WEATHER-STORM-SANDY

    Sailboats rest on the ground after being tipped over by Hurricane Sandy on City Island October 30, 2012 in New York. US President Obama declared New York a disaster area. The death toll from superstorm Sandy has risen to 16 in the mainland United States and Canada, and was expected to climb further as several people were still missing, officials said Tuesday. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)

  • US-WEATHER-STORM-SANDY

    Boats rest on the ground after floating from their stands at dry dock on City Island , in New York October 30, 2012 following Hurricane Sandy's impact. US President Obama declared New York a disaster area The death toll from superstorm Sandy has risen to 16 in the mainland United States and Canada, and was expected to climb further as several people were still missing, officials said Tuesday. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)

  • Homes destroyed by a fire at Breezy Point are shown, in the New York City borough of Queens Tuesday, Oct. 30, 2012, in New York. The fire destroyed between 80 and 100 houses Monday night in the flooded neighborhood. More than 190 firefighters have contained the six-alarm blaze fire, but they are still putting out some pockets of fire. (AP Photo/Frank Franklin II)

  • US-WEATHER-STORM-SANDY

    Boats rest on the ground after floating from their stands at dry dock on City Island , in New York October 30, 2012 following Hurricane Sandy's impact. US President Obama declared New York a disaster area The death toll from superstorm Sandy has risen to 16 in the mainland United States and Canada, and was expected to climb further as several people were still missing, officials said Tuesday. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)

  • US-WEATHER-STORM-SANDY

    Residents look at damage left by Hurricane Sandy on City Island, New York, October 30, 2012. US President Obama declared New York a disaster area The death toll from superstorm Sandy has risen to 16 in the mainland United States and Canada, and was expected to climb further as several people were still missing, officials said Tuesday. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)

  • US-WEATHER-STORM-SANDY

    Boats rest on the ground after floating from their stands at dry dock on City Island , in New York October 30, 2012 following Hurricane Sandy's impact. US President Obama declared New York a disaster area The death toll from superstorm Sandy has risen to 16 in the mainland United States and Canada, and was expected to climb further as several people were still missing, officials said Tuesday. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)

  • East Coast Begins To Clean Up And Assess Damage From Hurricane Sandy

    NEW YORK, NY - OCTOBER 30: A truck drives through a flooded street, caused by Hurricane Sandy, on October 30, 2012, in the Lower East Side of New York City. The storm has claimed at least 33 lives in the United States, and has caused massive flooding accross much of the Atlantic seaboard. US President Barack Obama has declared the situation a 'major disaster' for large areas of the US East Coast including New York City. (Photo by Andrew Burton/Getty Images)