CallataGuidesGet a local business phone number in State Center, IA
State Center's area code, prefixes and carriers from NANPA records, and how to put a State Center number in front of your customers.
- Area code
- 641
- Exchanges
- 2NANPA-assigned
- Carriers
- 2
- Population
- 1,403Census 2024 est.
What area code is State Center, IA?
State Center, in Marshall County, Iowa, had a Census-estimated population of 1,403 in July 2024. All 2 exchanges NANPA lists for its rate center are in area code 641. State Center is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 641 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 |
|---|---|---|---|---|---|
| 641 | 2 | 100% | 2000 | none | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
State Center exchanges by carrier
2 carriers hold the 2 exchanges assigned to State Center's rate center. MCC Telephony of Iowa, LLC - Ia has the most, with 1. 1 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 |
|---|---|---|
| MCC Telephony of Iowa, LLC - Ia | 1 | 50% |
| Partner Communications Cooperative | 1 | 50% |
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.
State Center phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to State Center's rate center (STATE CTR). The earliest assignment date recorded in the file for these codes is 2023. 1 of the 2 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 641 | 303, 483 |
Source: NANPA utilized central office code file.
What makes a number local to State Center
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. State Center's numbers are rated to the STATE CTR rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a State Center number.
If your business already has a State Center number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around State Center
State Center is part of the Marshalltown, IA micropolitan area, home to 40,392 people in 2024. County Business Patterns counted 786 business establishments in the Marshalltown, IA micropolitan area in 2023, employing 13,187 people. The largest sectors by establishment count are retail trade (106), health care and social assistance (106), and other services (except public administration) (101).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 24 | 417 | 17.4 |
| Insurance agencies and brokerages | 20 | — | — |
| Limited-service restaurants | 20 | 483 | 24.1 |
| Physician practices | 17 | — | — |
| Dental offices | 13 | 99 | 7.6 |
| Drinking places | 13 | — | — |
| Law offices | 12 | 54 | 4.5 |
| Hotels and motels | 12 | 99 | 8.3 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in State Center
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 State Center, 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 17 users, the rounded average establishment size in the Marshalltown, IA micropolitan area. At list prices checked September 28, 2026, that is $424.15 a month on Ooma Office Pro and $510.00 on RingCentral RingEX Core. On Callata the same 17 people cost $339.00 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 | $339.00 | $4,068.00 |
| Quo (Starter) | $19.00 per user | $323.00 | $3,876.00 |
| Nextiva (Core) | $23.00 per user | $391.00 | $4,692.00 |
| Ooma (Office Pro) | $24.95 per user | $424.15 | $5,089.80 |
| Dialpad (Standard) | $27.00 per user | $459.00 | $5,508.00 |
| RingCentral (RingEX Core) | $30.00 per user | $510.00 | $6,120.00 |
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 State Center, IA?
641. All exchanges NANPA lists for State Center are in 641.
How many phone companies have exchanges in State Center?
2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing State Center 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 State Center?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 17 users come to $339.00 a month. For comparison, 17 users on RingCentral RingEX Core list at $510.00 a month (checked September 28, 2026).