---
title: "Area code 810: Michigan, United States"
url: "https://lookvalid.com/area-code/810.md"
canonical_url: "https://lookvalid.com/area-code/810"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 810 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan."
---

# Area code 810: Michigan, United States

Area code 810 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan.

NANPA lists 507 central office codes (prefixes) in use in area code 810, held by 37 holders across 50 rate centers.
Michigan Bell Tel holds the most prefixes, 87 (17%). 73% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 1,465 complaints on file for 1,143 numbers in 810, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1993-12-01
- Time zone: Eastern (E)
- Prefixes in use: 507
- Pooled prefixes: 372 (73%)
- Rate centers: 50
- Companies holding prefixes: 37
- Assignment dates on file: 2001-01-15 to 2026-07-22 (195 prefixes)
- ZIP codes in its places: 67

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| FLINT | 139 | 27% |
| LAPEER | 44 | 9% |
| PORT HURON | 44 | 9% |
| BRIGHTON | 39 | 8% |
| GRANDBLANC | 16 | 3% |
| FENTON | 15 | 3% |
| ALGONAC | 11 | 2% |
| DAVISON | 11 | 2% |
| 42 other rate centers | 188 | 37% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Michigan Bell Tel | 87 | 17% |
| New Cingular Wireless PCS | 61 | 12% |
| Verizon Wireless | 51 | 10% |
| Omnipoint Communications Midwest Operations | 50 | 10% |
| Teleport Communications America | 36 | 7% |
| Frontier North | 27 | 5% |
| 31 other carriers | 195 | 38% |

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 313, named as the parent of 810 in the NANPA report, was in service.
- 1993-12-01: Area code 810 went into service.
- 1997-05-10: Area code 248 went into service and names 810 as its parent.
- 2001-09-22: Area code 586 went into service and names 810 as its parent.

## Nearest area codes

The area codes closest to 810, measured between the centers of the ZIP code places they serve, are 248 (about 23 miles), 947 (about 23 miles), 586 (about 28 miles), 734 (about 54 miles) and 989 (about 71 miles).

## ZIP codes

67 ZIP codes fall in places that have a rate center in this area code. The places with the most are Flint, MI (17 ZIP codes), Southfield, MI (6 ZIP codes) and Pontiac, MI (4 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

1,465 complaints for 1,143 numbers. Numbers whose latest complaint falls in each year:

- 2023: 60
- 2024: 63
- 2025: 75

## Questions

### Where is area code 810?

NANPA assigns area code 810 to Michigan, United States.

### In which state does area code 810 sit?

Michigan. 810 is one of 13 area codes the NANPA table assigns to the state.

### Which places does area code 810 cover?

The places with the most ZIP codes among the rate centers in 810 are Flint, MI, Southfield, MI and Pontiac, MI. The rate center list on this page shows all of them.

### Who owns area code 810?

NANPA assigns area codes. Within 810, Michigan Bell Tel holds the most prefixes, 87 prefixes or 17%.

### Which time zone does 810 use?

The NANPA NPA report lists the time zone for 810 as Eastern (E).

### What year did 810 enter service?

The NANPA NPA report gives an in-service date of 1993-12-01, so 810 has been in use since 1993.

### Does area code 810 have an overlay?

The NANPA NPA report lists no other area code in an overlay with 810.

### Which area codes are nearest to 810?

The area codes closest to 810, measured between the centers of the ZIP code places they serve, are 248 (about 23 miles), 947 (about 23 miles), 586 (about 28 miles), 734 (about 54 miles) and 989 (about 71 miles).

### How many prefixes does area code 810 have?

NANPA's report dated 2026-10-17 lists 507 prefixes in service in 810, spread over 50 rate centers and 37 holders.

### Are there complaints about 810 numbers?

The FCC data on file has 1,465 complaints for 1,143 numbers in 810. 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).