Area Code 740

Ohio

Area code 740 serves Ohio, primarily Newark, in the Eastern Time (ET) time zone. It has served the region since 06-Dec-1997.

Overlay Area Code

This area code is part of an overlay region, meaning the same geographic area is served by multiple area codes. Overlay codes were introduced to meet growing demand for phone numbers without requiring existing customers to change their numbers.

This area code shares its geographic region with: area code 220 (Newark).

In service since: 06-Dec-1997

Learn more about overlay and split area codes →

Demographics & Economics

Demographic Data Unavailable for Area Code 740

County-level demographic data is not available for this area code because NPA boundary polygons are not publicly distributed by NANPA. We use geographic boundary data from the Colorado Open Data Portal to map area codes to counties, which currently covers 194 of 376 geographic area codes.

Demographic statistics (population, income, education, poverty) require county-level aggregations from Census ACS data. Without a county mapping, these aggregations cannot be computed. We are actively seeking additional data sources to improve coverage.

Statistics are population-weighted aggregations from Census ACS 5-year estimates where county boundary data is available.See Sources for details.

Time Zone

Eastern Time (ET)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Eastern Time (ET)

Prefix Utilization

Geographic Coverage

State

Major Cities

Newark
Delaware
Reynoldsburg
Lancaster
Marion
Zanesville
Athens
Chillicothe
Steubenville
Pataskala
Portsmouth
Mount Vernon
Washington Court House
Powell
Circleville
Marietta
Coshocton
Ironton
Heath
New Albany
London
Cambridge
Bainbridge
Sunbury

and 297 more cities

Area Code 740 geographic coverage map (light mode)

History

Area code 740 was established in 1997 as a geographic area code. It shares its territory with area code area code 220.

Demographics

Detailed demographic and economic data is not yet available for area code 740.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 740).

County	Population	Share
Licking, OH	223,489	8.0%
Delaware, OH	213,663	7.6%
Fairfield, OH	175,503	6.2%
Muskingum, OH	137,094	4.9%
Union, OH	128,945	4.6%
Ross, OH	119,329	4.2%
Scioto, OH	115,653	4.1%
Hocking, OH	109,621	3.9%
Jackson, OH	100,860	3.6%
Pike, OH	98,674	3.5%
Belmont, OH	76,842	2.7%
Lawrence, OH	75,022	2.7%
Perry, OH	74,027	2.6%
Knox, OH	73,703	2.6%
Marion, OH	71,670	2.6%
Athens, OH	71,463	2.5%
Jefferson, OH	69,805	2.5%
Franklin, OH	69,446	2.5%
Washington, OH	68,723	2.4%
Pickaway, OH	65,154	2.3%
Guernsey, OH	65,154	2.3%
Crawford, OH	56,758	2.0%
Vinton, OH	55,495	2.0%
Coshocton, OH	55,186	2.0%
Harrison, OH	52,543	1.9%
Morrow, OH	51,131	1.8%
Gallia, OH	42,443	1.5%
Morgan, OH	37,966	1.4%
Tuscarawas, OH	36,816	1.3%
Meigs, OH	35,642	1.3%
Fayette, OH	33,439	1.2%
Madison, OH	30,518	1.1%
Noble, OH	26,959	1.0%
Clark, OH	24,162	0.9%
Monroe, OH	22,405	0.8%
Carroll, OH	13,612	0.5%
Richland, OH	9,517	0.3%
Wyandot, OH	5,118	0.2%
Highland, OH	4,626	0.2%
Ashland, OH	4,185	0.1%
Adams, OH	3,692	0.1%
Hardin, OH	1,762	0.1%
Columbiana, OH	1,147	0.0%

Area Code 740 Family Tree

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Total Codes

Splits

Overlays

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All Descendants

Code ▲	State	Type	In Service	Parent
220	OH	overlay	22-Apr-2015	740

Area code 740 was originally assigned in 06-Dec-1997 to serve OH. Over the years, it has generated 1 descendant area code through a combination of geographic splits and overlays as demand for telephone numbers grew.