The most populous cities in area code 207 are: Portland, Bangor, Lewiston, Augusta, and Brunswick.

Other cities in the 207 area code include: Biddeford, Waterville, South Portland, Sanford, Rockland, Ellsworth, Presque Isle, Scarborough, Kittery, Norway, Skowhegan, Belfast, Windham, Farmington, Kennebunk, Wells, Rumford, Stratton, Westbrook, Caribou, Houlton, Camden, Calais, York, Freeport, Bethel, Boothbay Harbor, Old Town, Orono, Millinocket, Lincoln, Harrison, Bath, Gardiner, Pittsfield, Madawaska, Winthrop, Livermore Falls, Steep Falls, Wiscasset, Hollis Center, Bucksport, Newport, Kingfield, Oakfield, Fort Kent, Limestone, Guilford, Fairfield, Waldoboro, Gray, Monson, Bar Harbor, Fort Fairfield, New Portland, Berwick, Old Orchard Beach, Yarmouth, Lisbon Falls, Dover Foxcroft, Oakland, Mechanic Falls, Fryeburg, Dexter, Norridgewock, Kennebunkport, Southwest Harbor, Naples, Aurora, Brownville, Jonesboro, Levant, Lovell, Mattawamkeag, North Vassalboro, Poland, Roxbury, Smithfield, Solon, Vinalhaven, Warren, Wesley, West Baldwin, Gorham, Van Buren, Andover, Carmel, Lincolnville, Monroe, South Berwick, South China, Bridgton, Deer Isle, Harmony, Sullivan, Swans Island, Richmond, Mars Hill, North Berwick, Addison, Danforth, Readfield, Madison, Limerick, Damariscotta, Wilton, Winterport, Peaks Island, Sabattus, Easton, Orrington, Hampden, Baileyville, Cumberland Center, Falmouth, Thomaston, Milo, Oxford, East Millinocket, Eastport, Machias, Clinton, Dixfield, Castine, Searsport, Blue Hill, Ashland, Hartland, Unity, Eagle Lake, Lubec, Acton, Albion, Alna, Belgrade, Bremen, Bryant Pond, Buckfield, Canton, Corinna, Detroit, Dixmont, Eddington, Etna, Freedom, Garland, Georgetown, Greenbush, Greene, Harpswell, Harrington, Hebron, Hiram, Jackman, Kenduskeag, Leeds, Liberty, Limington, Litchfield, Livermore, Machiasport, Monmouth, Monticello, Morrill, New Harbor, New Vineyard, North Anson, Ogunquit, Patten, Phillips, Phippsburg, Pownal, Raymond, Saint Albans, South Bristol, Springfield, Stetson, Stockton Springs, Stoneham, Stonington, Strong, Thorndike, Union, Vassalboro, Vienna, Washington, Waterboro, West Enfield, West Paris, Washburn, Bowdoinham, Columbia Falls, Saint Agatha, Saint David, Sedgwick, Sumner, Turner, Windsor, Winter Harbor, Eustis, Islesboro, Pembroke, Bradford, Corinth, North Haven, Princeton, Tenants Harbor, Buxton, New Sweden, Rockwood, Benedicta, Lebanon, Eliot, Greenville Junction, Brookton, West Forks, Newry, and Standish.

Portland is the largest city in the U.S. state of Maine, with a population of 66,881 as of 2015. The Greater Portland metropolitan area is home to over half a million people, more than one-third of Maine's total population. The Old Port district is frequented by tourists, while Portland Head Light is also a destination. The city seal depicts a phoenix rising from ashes, which is a reference to the recoveries from four devastating fires. Portland was named for the English Isle of Portland, and the city of Portland, Oregon was in turn named after Portland, Maine.

Bangor is a city along the Penobscot River in the U.S. state of Maine. The city proper has a population of 33,039, while the Bangor metropolitan area has a population of 153,746. Bangor is known as the "Queen City" of Maine.Modern Bangor was established by European Americans in the mid-1800s, based on the lumber and shipbuilding industries. As the city was located on the Penobscot River, logs could be floated downstream from the North Maine Woods and processed at the city's water-powered sawmills, then shipped from Bangor's port to the Atlantic Ocean 30 miles downstream, and from there to any port in the world. With their wealth, the lumber barons built elaborate Greek Revival and Victorian mansions and the 31 feet (9.4 m) high statue of Paul Bunyan. Today, Bangor's economy is based on services and retail, healthcare, and education.Founded as Condeskeag Plantation, Bangor was incorporated as a New England town in 1791, after the end of the American Revolutionary War. There are more than 20 communities worldwide named Bangor, of which 15 are in the United States and named after Bangor, Maine by settlers in other areas. The reason for the choice of name is disputed but it was likely either from the eponymous Welsh hymn or from either of two places of that name in the British Isles: Bangor, Gwynedd, Wales, and Bangor, County Down, Northern Ireland, from where many immigrants traveled to the United States. The final syllable is pronounced gor, not ger. In 2015, local public officials, journalists, doctors, policemen, photographers, restaurateurs, TV personalities and Grammy-winning composers came together to record the YouTube video How To Say Bangor. Bangor has a port of entry at Bangor International Airport, also home to the Bangor Air National Guard Base. Historically Bangor was an important stopover on the great circle air route between the East Coast of the United States and Europe. Bangor's Police Department also has a popular Facebook page, which uses humor and advice in an attempt to better public police relations, which has made national news on multiple occasions.Bangor has a humid continental climate, with cold, snowy winters, and warm summers.

Lewiston is the most central city in Androscoggin County in the U.S. state of Maine, and the second-largest city in the state. The population was 36,592 at the 2010 census. It is one of two principal cities of and included within the Lewiston-Auburn, Maine, metropolitan New England city and town area and the Lewiston-Auburn, Maine Metropolitan Statistical Area, which as of 2006 census estimates has a combined population of 107,702. It is also part of the extended Portland -Lewiston- South Portland, Maine, combined statistical area, which has a combined population 621,219 as of 2006 estimates. The city has historical French-Canadian connections; as much development of the city occurred during the migration of French-Canadians from Montreal, Canada.A former mill town, it is located in south-central Maine, at the falls of the Androscoggin River, across from Auburn. Lewiston and Auburn are often considered a single entity and referred to as Lewiston–Auburn, colloquially abbreviated as L-A or L/A. They have a combined population of 59,647 people. Together, Lewiston-Auburn is somewhat smaller than Maine's largest city, Portland (excluding its own suburbs). Lewiston is most notably home to Bates College, which was founded by local preacher and politician Oren Burbank Cheney, and financed by Lewiston developer Benjamin Bates, the wealthiest person in the state for his lifetime in the city. The city also holds the college's Museum of Art.The city has numerous traditional and festivals that draw crowds from around Maine, such as the Patrick Dempsey Challenge, Liberty Festival, Festival FrancoFun, The Great Falls Balloon Festival, and the Emerge Film Festival. It is also home to the Basilica of Saints Peter and Paul, the University of Southern Maine's Lewiston-Auburn College, and two significant regional general hospitals: Central Maine Medical Center and Saint Mary's Regional Medical Center.

The 207 area code lies within the Eastern Daylight Time Zone (or EDT). The current time in Eastern Daylight Time is 12:24 PM on Sep 24, 2023.

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