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Area code 432

Where 432 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
TX
In service
2003
Assigned codes
341of 800 possible
Carriers
43

About area code 432

Area code 432 is a geographic area code in Texas, in service since April 5, 2003, according to the North American Numbering Plan Administrator (NANPA). It is not part of an overlay, so every number in its territory starts with 432. It is in the Central time zone. The places with the most assigned exchanges include Midland, Odessa, Big Spring, Seminole, and Andrews. By population, its largest named places are Midland, Odessa, Big Spring, Andrews, and Fort Stockton.

Area code 432: NANPA facts
ItemValue
StateTexas
In service sinceApril 5, 2003
Assigned by NANPAMarch 13, 2002
OverlayNo
Parent area code (NANPA)915
Time zoneCentral
Local calls within the codeseven digits
Assigned central office codes341
Rate centers with codes60
Carriers holding codes43
Pooled codes244
Codes assigned since 202056
Relief planning in progressNo

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

Where 432 numbers are local

432 holds 2.1% of the 16,097 central office codes assigned in Texas, the 24th most of the state's 29 codes. 27 Census places could be matched to rate centers with 432 exchanges; the most populous are Midland (144,000), Odessa (120,000), Big Spring (22,541), and Andrews (13,677). Each place page lists the exact prefixes and carriers for that town.

Most populous places with 432 exchanges
PlacePopulation (2024)Area codesExchangesCarriers
Midland, TX143,6874326227
Odessa, TX119,7484325415
Big Spring, TX22,541432169
Andrews, TX13,67743274
Fort Stockton, TX8,14743266
Seminole, TX7,38643297
Monahans, TX7,33443265
Alpine, TX6,03943266
Kermit, TX5,90943233
Crane, TX3,37543244
Stanton, TX2,62943244
Van Horn, TX2,01143244
McCamey, TX1,72843233
Marfa, TX1,64143233

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

Ten-digit and seven-digit dialing in 432

According to NANPA's dialing-plan data, local calls within 432 are dialed as seven digits and toll calls as 1 plus ten digits. Seven-digit local dialing is still permitted here, but customers calling from other area codes, and every mobile contact list, use all ten digits.

Who holds 432 exchanges

43 carriers hold the 341 central office codes assigned in 432. Southwestern Bell has the most, with 78 (23%). 244 of the codes (72%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. The code holder is not necessarily the carrier serving a given number today, since numbers can be ported between providers.

Largest code holders in area code 432
Carrier (NANPA operating company)ExchangesShare
Southwestern Bell7823%
New Cingular Wireless PCS, LLC - Il3510%
Cellco Partnership d/b/a Verizon Wireless - TX329.4%
Onvoy, LLC - TX298.5%
Fractel, LLC195.6%
Valor Telecomm TX, Ld-tx #2 d/b/a Windstream Comm SW164.7%
Level 3 Communications, LLC - TX154.4%
Big Bend Tel. CO., INC.144.1%
T-mobile USA, INC.133.8%
Wes-tex Telephone Coop., INC.102.9%
CSC Voice, LLC72.1%
Teleport Communications America, LLC - TX61.8%

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.

Local calling areas in 432

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 432 has codes in 60 rate centers. Rate center names in the file are abbreviations; where one matches a Census place, the table links to that city's local-number page.

Rate centers in area code 432 by assigned codes
Rate center (NANPA)PlaceCodes
MIDLANDMidland, TX62
TERMINALnot matched60
ODESSAOdessa, TX54
BIG SPRINGBig Spring, TX16
SEMINOLESeminole, TX9
ANDREWSAndrews, TX7
PECOSnot matched7
MONAHANSMonahans, TX6
FTSTOCKTONFort Stockton, TX6
ALPINEAlpine, TX6
MIDKIFFnot matched5
COYANOSAnot matched4
VAN HORNVan Horn, TX4
MARATHONnot matched4
FORSANForsan, TX4
STANTONStanton, TX4
IMPERIALnot matched4
CRANECrane, TX4
RANKINRankin, TX3
FRANKEL CYnot matched3
BALMORHEABalmorhea, TX3
FORT DAVISnot matched3
EUNICE WSTnot matched3
TOYAHToyah, TX3
MCCAMEYMcCamey, TX3

Top 25 of 60 rate centers.

Number supply in 432

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). 341 are assigned in 432, 43% of 800. 56 were assigned in 2020 or later.

Area code 432: central office codes by decade assigned
Decade assignedExchangesShare
2000s6536%
2010s6234%
2020s5631%

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

A local 432 number on Callata

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

Porting a number you already use in area code 432 is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Frequently asked questions

Where is area code 432?

432 is a geographic area code in Texas. Places with the most assigned exchanges include Midland, Odessa, Big Spring, and Seminole.

What time zone is area code 432 in?

NANPA lists 432 in the Central time zone.

When did area code 432 go into service?

NANPA records an in-service date of April 5, 2003. The code was assigned on March 13, 2002.

Is 432 an overlay area code?

No. NANPA does not list 432 as part of an overlay.

Can my business get a 432 phone number?

Callata includes up to 3 local numbers on its $99/month plan (5 users included). Which 432 numbers are open depends on carrier inventory when you choose, and you can port an existing number for free.