Ohio area codes

Codes in service in Ohio

Ohio has 15 geographic area codes in service: 216, 220, 234, 283, 326, 330, 380, 419, 436, 440, 513, 567, 614, 740, 937. 216 is the oldest, dated 1947, and 436 the newest, dated 1 Mar 2024.1 All of Ohio's codes are on Eastern time.

Area code	NANPA location	NPA in-service date	In-service overlay peers	Time zone	Local calls within the code
216	OH	1947	None listed	Eastern	7 digits
220	OH	22 Apr 2015	740	Eastern	10 digits
234	OH	30 Oct 2000	330	Eastern	10 digits
283	OH	28 Apr 2023	513	Eastern	10 digits
326	OH	8 Mar 2020	937	Eastern	10 digits
330	OH	9 Mar 1996	234	Eastern	10 digits
380	OH	27 Feb 2016	614	Eastern	10 digits
419	OH	1947	567	Eastern	10 digits
436	OH	1 Mar 2024	440	Eastern	10 digits
440	OH	16 Aug 1997	436	Eastern	10 digits
513	OH	1947	283	Eastern	10 digits
567	OH	1 Jan 2002	419	Eastern	10 digits
614	OH	1947	380	Eastern	10 digits
740	OH	6 Dec 1997	220	Eastern	10 digits
937	OH	28 Sep 1996	326	Eastern	10 digits

Scroll the table sideways to see every column. Sources: NANPA (14 October 2026 file).

History and overlays in Ohio

Before 1960: 216, 419, 513, 614
1990s: 330, 937, 440, 740
2000s: 234, 567
2010s: 220, 380
2020s: 326, 283, 436

Ohio's in-service overlay groups are 220/740; 234/330; 283/513; 326/937; 380/614; 419/567; 436/440.1

283/513: 513 (1947) was joined by 283 on 28 Apr 2023.
380/614: 614 (1947) was joined by 380 on 27 Feb 2016.
419/567: 419 (1947) was joined by 567 on 1 Jan 2002.
436/440: 440 (1997) was joined by 436 on 1 Mar 2024.

Ohio has 3 more overlay groups, visible in the table above.

Dialing in Ohio

Local calls within a single area code in Ohio differ: 7 digits for 216; 10 digits for 220, 234, 283, 326, 330, 380, 419, 436, 440, 513, 567, 614, 740, 937. From any of Ohio's codes, local calls to another area code are all recorded as 10 digits.1 Seven-digit local dialing is still recorded for 216.

Neighbours of Ohio

Regions that border Ohio:

Indiana: 8 codes (219, 260, 317, 463, ...)
Kentucky: 5 codes (270, 364, 502, 606, ...)
Michigan: 13 codes (231, 248, 269, 313, ...)
Pennsylvania: 15 codes (215, 223, 267, 272, ...)

Rules that apply to every region are on the area-code reference.

Get a number in Ohio

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Sources

Every regulatory and pricing claim on this page links to the primary source it came from. Figures were checked on the date shown at the top of the page; rules and prices change, so verify before relying on one.

NANPA, NPA Database CSV, file dated 14 October 2026; US geographic codes, location, dates, overlay complexes, dialing plan and time zone. Retrieved 14 Oct 2026
https://reports.nanpa.com/public/npa_report.csv