CallataGuidesGet a local business phone number in Marietta, OK
Marietta's area code, prefixes and carriers from NANPA records, and how to put a Marietta number in front of your customers.
- Area code
- 580
- Exchanges
- 5NANPA-assigned
- Carriers
- 5
- Population
- 2,891Census 2024 est.
Marietta area codes
Marietta, in Love County, Oklahoma, had a Census-estimated population of 2,891 in July 2024. All 5 exchanges NANPA lists for its rate center are in area code 580. Marietta is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 580 are dialed as seven digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 580 | 5 | 100% | 1997 | none | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Marietta exchanges by carrier
5 carriers hold the 5 exchanges assigned to Marietta's rate center. United States Cellular - Ok has the most, with 1. 5 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| United States Cellular - Ok | 1 | 20% |
| Southwestern Bell | 1 | 20% |
| Chickasaw Telecommunicaions Services, INC. | 1 | 20% |
| Mcimetro Access Transmission Services LLC - Ok | 1 | 20% |
| T-mobile USA, INC. | 1 | 20% |
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.
Marietta phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Marietta's rate center (MARIETTA). The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 580 | 238, 276, 282, 300, 812 |
Source: NANPA utilized central office code file.
How local numbers work in Marietta
NANPA ties every exchange to a rate center. For Marietta that is MARIETTA, so a number from one of these exchanges reads as local to people in and around Marietta.
If your business already has a Marietta number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
Marietta is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 96,402 business establishments in Oklahoma in 2023, employing 1,431,690 people. The largest sectors by establishment count are retail trade (13,097), health care and social assistance (11,795), and professional, scientific, and technical services (10,200).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 3,024 | 67,183 | 22.2 |
| Full-service restaurants | 2,992 | 61,438 | 20.5 |
| Physician practices | 2,400 | 22,323 | 9.3 |
| Law offices | 2,234 | 9,881 | 4.4 |
| Insurance agencies and brokerages | 2,191 | 8,548 | 3.9 |
| Offices of real estate agents and brokers | 1,614 | 3,177 | 2.0 |
| Plumbing, heating and air-conditioning contractors | 1,592 | 13,349 | 8.4 |
| Dental offices | 1,373 | 10,649 | 7.8 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Marietta
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 Marietta, 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in Oklahoma, 15 users on RingCentral RingEX Core come to $450.00 a month and on Ooma Office Pro $374.25, at month-to-month list prices checked September 28, 2026. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.
Frequently asked questions
What area code is Marietta, OK?
580. All exchanges NANPA lists for Marietta are in 580.
How many phone companies have exchanges in Marietta?
5, holding 5 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Marietta business number?
Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.
How much is a business phone line in Marietta?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 15 users come to $299.00 a month. For comparison, 15 users on RingCentral RingEX Core list at $450.00 a month (checked September 28, 2026).