---
title: "Area code 989: Michigan, United States"
url: "https://lookvalid.com/area-code/989.md"
canonical_url: "https://lookvalid.com/area-code/989"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 989 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan."
---

# Area code 989: Michigan, United States

Area code 989 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan.

NANPA lists 722 central office codes (prefixes) in use in area code 989, held by 59 holders across 135 rate centers.
Frontier North holds the most prefixes, 91 (13%). 70% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 1,834 complaints on file for 1,267 numbers in 989, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 2001-04-07
- Time zone: Eastern (E)
- Prefixes in use: 722
- Pooled prefixes: 502 (70%)
- Rate centers: 135
- Companies holding prefixes: 59
- Assignment dates on file: 2001-01-25 to 2026-03-30 (365 prefixes)
- ZIP codes in its places: 138

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| SAGINAW | 114 | 16% |
| MIDLAND | 37 | 5% |
| BAY CITY | 29 | 4% |
| MTPLEASANT | 27 | 4% |
| OWOSSO | 18 | 2% |
| ALMA | 16 | 2% |
| GAYLORD | 16 | 2% |
| ALPENA | 15 | 2% |
| 127 other rate centers | 450 | 62% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Frontier North | 91 | 13% |
| Michigan Bell Tel | 88 | 12% |
| New Cingular Wireless PCS | 82 | 11% |
| Verizon Wireless | 71 | 10% |
| Interactive Services Network | 63 | 9% |
| Onvoy, Llcv | 46 | 6% |
| 53 other carriers | 281 | 39% |

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 517, named as the parent of 989 in the NANPA report, was in service.
- 2001-04-07: Area code 989 went into service.

## Nearest area codes

The area codes closest to 989, measured between the centers of the ZIP code places they serve, are 810 (about 71 miles), 231 (about 82 miles), 248 (about 92 miles), 947 (about 92 miles) and 616 (about 93 miles).

## ZIP codes

138 ZIP codes fall in places that have a rate center in this area code. The places with the most are Saginaw, MI (11 ZIP codes), Midland, MI (7 ZIP codes) and Bay City, MI (3 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

1,834 complaints for 1,267 numbers. Numbers whose latest complaint falls in each year:

- 2023: 54
- 2024: 66
- 2025: 61

## Questions

### Where is area code 989?

NANPA assigns area code 989 to Michigan, United States.

### In which state does area code 989 sit?

Michigan. 989 is one of 13 area codes the NANPA table assigns to the state.

### Which places does area code 989 cover?

The places with the most ZIP codes among the rate centers in 989 are Saginaw, MI, Midland, MI and Bay City, MI. The rate center list on this page shows all of them.

### Who owns area code 989?

NANPA assigns area codes. Within 989, Frontier North holds the most prefixes, 91 prefixes or 13%.

### Which time zone does 989 use?

The NANPA NPA report lists the time zone for 989 as Eastern (E).

### What year did 989 enter service?

The NANPA NPA report gives an in-service date of 2001-04-07, so 989 has been in use since 2001.

### Does area code 989 have an overlay?

The NANPA NPA report lists no other area code in an overlay with 989.

### Which area codes are nearest to 989?

The area codes closest to 989, measured between the centers of the ZIP code places they serve, are 810 (about 71 miles), 231 (about 82 miles), 248 (about 92 miles), 947 (about 92 miles) and 616 (about 93 miles).

### How many prefixes does area code 989 have?

NANPA's report dated 2026-10-17 lists 722 prefixes in service in 989, spread over 135 rate centers and 59 holders.

### Are there complaints about 989 numbers?

The FCC data on file has 1,834 complaints for 1,267 numbers in 989. 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).