---
title: "Area code 740: Ohio, United States"
url: "https://lookvalid.com/area-code/740.md"
canonical_url: "https://lookvalid.com/area-code/740"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 740 serves Ohio, United States. Number formats, numbering rules, a live phone validator and the other codes in Ohio."
---

# Area code 740: Ohio, United States

Area code 740 serves Ohio, United States. Number formats, numbering rules, a live phone validator and the other codes in Ohio.

NANPA lists 786 central office codes (prefixes) in use in area code 740, held by 41 holders across 187 rate centers.
Frontier North holds the most prefixes, 123 (16%). 83% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 2,315 complaints on file for 1,855 numbers in 740, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1997-12-06
- Time zone: Eastern (E)
- Assigned overlays: 220 (2015-04-22)
- Prefixes in use: 786
- Pooled prefixes: 653 (83%)
- Rate centers: 187
- Companies holding prefixes: 41
- Assignment dates on file: 2001-01-05 to 2025-08-20 (327 prefixes)
- ZIP codes in its places: 126

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| NEWARK | 33 | 4% |
| LANCASTER | 29 | 4% |
| PORTSMOUTH | 28 | 4% |
| ZANESVILLE | 25 | 3% |
| ATHENS | 23 | 3% |
| MARION | 21 | 3% |
| CHILLICOTH | 20 | 3% |
| DELAWARE | 19 | 2% |
| 179 other rate centers | 588 | 75% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Frontier North | 123 | 16% |
| Ohio Bell Tel | 105 | 13% |
| Verizon Wireless | 82 | 10% |
| Aerial Communications | 66 | 8% |
| Level 3 Communications | 63 | 8% |
| New Cingular Wireless PCS | 62 | 8% |
| 35 other carriers | 285 | 36% |

A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company.

## History

- 1947-01-01: Area code 614, named as the parent of 740 in the NANPA report, was in service.
- 1997-12-06: Area code 740 went into service.
- 2015-04-22: Area code 220 went into service as an overlay in the same area as 740.

## Nearest area codes

The area codes closest to 740, measured between the centers of the ZIP code places they serve, are 380 (about 47 miles), 614 (about 47 miles), 234 (about 91 miles), 330 (about 91 miles) and 326 (about 102 miles).

## ZIP codes

126 ZIP codes fall in places that have a rate center in this area code. The places with the most are Newark, OH (3 ZIP codes), Marion, OH (2 ZIP codes) and Zanesville, OH (2 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes.

## Complaints on file

2,315 complaints for 1,855 numbers. Numbers whose latest complaint falls in each year:

- 2023: 81
- 2024: 90
- 2025: 77

## Questions

### Where is area code 740?

NANPA assigns area code 740 to Ohio, United States.

### In which state does area code 740 sit?

Ohio. 740 is one of 15 area codes the NANPA table assigns to the state.

### Which places does area code 740 cover?

The places with the most ZIP codes among the rate centers in 740 are Newark, OH, Marion, OH and Zanesville, OH. The rate center list on this page shows all of them.

### Who owns area code 740?

NANPA assigns area codes. Within 740, Frontier North holds the most prefixes, 123 prefixes or 16%.

### Which time zone does 740 use?

The NANPA NPA report lists the time zone for 740 as Eastern (E).

### What year did 740 enter service?

The NANPA NPA report gives an in-service date of 1997-12-06, so 740 has been in use since 1997.

### Does area code 740 have an overlay?

Yes. 220 (in service 2015-04-22) shares the same area with 740, so numbers from all of them are local to each other.

### Which area codes are nearest to 740?

The area codes closest to 740, measured between the centers of the ZIP code places they serve, are 380 (about 47 miles), 614 (about 47 miles), 234 (about 91 miles), 330 (about 91 miles) and 326 (about 102 miles).

### How many prefixes does area code 740 have?

NANPA's report dated 2026-10-17 lists 786 prefixes in service in 740, spread over 187 rate centers and 41 holders.

### Are there complaints about 740 numbers?

The FCC data on file has 2,315 complaints for 1,855 numbers in 740. They are unverified consumer reports. A number with no complaints on file is not proven safe.

Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).