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Area code 989

Where 989 is, how it is dialed, which carriers hold its numbers and how many of its codes are in use, from NANPA's 10/01/2026 files.

State
MI
In service
2001
Assigned codes
724of 800 possible
Carriers
59

About area code 989

NANPA lists 989 as an in-service geographic area code for Michigan, first put into service on April 7, 2001. It is not part of an overlay, so every number in its territory starts with 989. It is in the Eastern time zone. The places with the most assigned exchanges include Saginaw, Midland, Bay City, Mount Pleasant, and Owosso. By population, its largest named places are Saginaw, Midland, Bay City, Gaines, and Harrison.

Area code 989: NANPA facts
ItemValue
StateMichigan
In service sinceApril 7, 2001
Assigned by NANPASeptember 2, 1999
OverlayNo
Parent area code (NANPA)517
Time zoneEastern
Local calls within the codeten digits (area code plus number)
Assigned central office codes724
Rate centers with codes135
Carriers holding codes59
Pooled codes504
Codes assigned since 202073
Relief planning in progressNo

Source: NANPA NPA report and utilized central office code file, both dated 10/01/2026.

Cities and towns in area code 989

989 holds 11% of the 6,882 central office codes assigned in Michigan, the 3rd most of the state's 13 codes. 96 Census places could be matched to rate centers with 989 exchanges; the most populous are Saginaw (43,001), Midland (42,780), Bay City (32,086), and Gaines (30,302). For a storefront or service area inside 989, the place pages show which prefixes are rated local there.

Most populous places with 989 exchanges
PlacePopulation (2024)Area codesExchangesCarriers
Saginaw, MI43,00198911430
Midland, MI42,7809893713
Bay City, MI32,0869892916
Gaines, MI30,30298933
Harrison, MI24,06298964
Mount Pleasant, MI21,0909892712
Lincoln, MI14,87898922
Owosso, MI14,5449891812
Alpena, MI10,1169891510
Alma, MI9,3499891610
St. Johns, MI7,723989118
St. Louis, MI7,46598933
Oscoda, MI7,19198987
Grayling, MI5,86298995
Birch Run, MI5,84298954

Population: Census Vintage 2024 estimates for the matched place. Exchanges and carriers: NANPA utilized code file.

Ten-digit and seven-digit dialing in 989

According to NANPA's dialing-plan data, local calls within 989 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits. Ten-digit local dialing means the area code is part of how customers save and recognize your number, so print it in full everywhere. NANPA's dialing-plan note for this code reads: "1+10 digit permissible at service provider discretion."

Carriers with 989 numbers

59 carriers hold the 724 central office codes assigned in 989. Frontier North, INC. - Mi has the most, with 91 (13%). 504 of the codes (70%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. Numbers can move between carriers through porting, so a code's holder tells you where the block started, not where every number lives now.

Largest code holders in area code 989
Carrier (NANPA operating company)ExchangesShare
Frontier North, INC. - Mi9113%
Michigan Bell Tel CO8812%
New Cingular Wireless PCS, LLC - Il8211%
Cellco Partnership d/b/a Verizon Wireless - Mi7310%
Telnet Worldwide, INC.638.7%
Onvoy, Llcv - Mi466.4%
Omnipoint Communications Midwest Operations, LLC354.8%
Level 3 Communications, LLC - Mi334.6%
American Messaging Services, LLC243.3%
Paetec Itel, LLC233.2%
123.net, LLC192.6%
Brightspeed of Michigan, LLC152.1%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Rate centers and towns in 989

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 989 has codes in 135 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

Rate centers in area code 989 by assigned codes
Rate center (NANPA)PlaceCodes
SAGINAWSaginaw, MI114
MIDLANDMidland, MI37
BAY CITYBay City, MI29
MTPLEASANTMount Pleasant, MI27
OWOSSOOwosso, MI18
GAYLORDGaylord, MI16
ALMAAlma, MI16
ALPENAAlpena, MI15
ST JOHNSSt. Johns, MI11
CLAREClare, MI11
GLADWINGladwin, MI11
WESTBRANCHWest Branch, MI10
EAST TAWASEast Tawas, MI9
BAD AXEBad Axe, MI9
GRAYLINGGrayling, MI9
PINCONNINGPinconning, MI8
OSCODAOscoda, MI8
CAROCaro, MI8
ITHACAIthaca, MI8
HOUGHTONLKnot matched7
STANDISHStandish, MI7
PIGEONPigeon, MI6
HARRISONHarrison, MI6
FREELANDnot matched6
MAPLE RPDMaple Rapids, MI6

Top 25 of 135 rate centers.

Number supply in 989

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 724 are assigned in 989, 91% of 800. 73 were assigned in 2020 or later.

Area code 989: central office codes by decade assigned
Decade assignedExchangesShare
2000s23664%
2010s5716%
2020s7320%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

A local 989 number on Callata

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

If you already have a number in area code 989, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

Frequently asked questions

Where is area code 989?

989 is a geographic area code in Michigan. Places with the most assigned exchanges include Saginaw, Midland, Bay City, and Mount Pleasant.

What time zone is area code 989 in?

NANPA lists 989 in the Eastern time zone.

When did area code 989 go into service?

NANPA records an in-service date of April 7, 2001. The code was assigned on September 2, 1999.

Is 989 an overlay area code?

No. NANPA does not list 989 as part of an overlay.

Can my business get a 989 phone number?

Callata includes up to 3 local numbers on its $99/month plan (5 users included). Which 989 numbers are open depends on carrier inventory when you choose, and you can port an existing number for free.