CallataGuidesGet a local business phone number in Rolla, MO
Rolla's area code, prefixes and carriers from NANPA records, and how to put a Rolla number in front of your customers.
- Area code
- 573
- Exchanges
- 15NANPA-assigned
- Carriers
- 5
- Population
- 20,660Census 2024 est.
What area code is Rolla, MO?
With 20,660 residents in the Census 2024 estimate, Rolla sits in Phelps County, Missouri. All 15 exchanges NANPA lists for its rate center are in area code 573. 573 is part of an overlay with 235, so a new local number in Rolla may carry any of those codes depending on which have numbers available. Rolla is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 573 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 573 | 15 | 100% | 1996 | 235 | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds Rolla phone exchanges
5 carriers hold the 15 exchanges assigned to Rolla's rate center. Embarq Missouri, INC. d/b/a Centurylink - Mo has the most, with 6. 12 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Rolla can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Embarq Missouri, INC. d/b/a Centurylink - Mo | 6 | 40% |
| T-mobile USA, INC. | 4 | 27% |
| New Cingular Wireless PCS, LLC - Il | 2 | 13% |
| Cellco Partnership d/b/a Verizon Wireless - Mo | 2 | 13% |
| Fidelity Cablevision, LLC | 1 | 6.7% |
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 prefixes for Rolla
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Rolla. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 573 | 201, 202, 308, 341, 364, 368, 426, 458, 465, 466, 467, 537, 578, 612, 647 |
Source: NANPA utilized central office code file.
What makes a number local to Rolla
What a caller sees as "local" is the area code plus prefix. In Rolla, those come from the ROLLA rate center, as recorded by NANPA.
Keeping an existing Rolla number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 573 when you pick it.
Businesses around Rolla
Rolla is part of the Rolla, MO micropolitan area, home to 45,672 people in 2024. County Business Patterns counted 1,050 business establishments in the Rolla, MO micropolitan area in 2023, employing 15,928 people. The largest sectors by establishment count are retail trade (186), health care and social assistance (151), and accommodation and food services (122).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 33 | 905 | 27.4 |
| Full-service restaurants | 28 | 715 | 25.5 |
| General automotive repair shops | 21 | 108 | 5.1 |
| Physician practices | 20 | 126 | 6.3 |
| Agencies providing services for the elderly and persons with disabilities | 20 | 286 | 14.3 |
| Insurance agencies and brokerages | 18 | — | — |
| Hotels and motels | 18 | 207 | 11.5 |
| Engineering services firms | 14 | — | — |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Rolla 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.
If you already have a number in Rolla, 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.
The comparison below uses 15 users, the rounded average establishment size in the Rolla, MO micropolitan area. At list prices checked September 28, 2026, that is $374.25 a month on Ooma Office Pro and $450.00 on RingCentral RingEX Core. 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 Rolla, MO?
573. All exchanges NANPA lists for Rolla are in 573.
How many phone companies have exchanges in Rolla?
5, holding 15 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Rolla 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 Rolla?
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).