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.

Published: February 17, 2026Verified against NANPA and FCC records

Overlay Area Code

This area code shares its geographic footprint with an overlay code, so the same cities are served by two area codes. Because overlays leave existing numbers untouched, this region's relief planning favors adding codes over redrawing boundaries.

The codes serving this same region: area code 220 (Newark).

With prefix utilization already at 98.3%, numbering resources here are under sustained pressure — context that explains why overlays were introduced.

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.