CallataGuidesGet a local business phone number in Storm Lake, IA
Storm Lake's area code, prefixes and carriers from NANPA records, and how to put a Storm Lake number in front of your customers.
- Area code
- 712
- Exchanges
- 8NANPA-assigned
- Carriers
- 6
- Population
- 11,627Census 2024 est.
Storm Lake area codes
Storm Lake city is a Census place in Buena Vista County, Iowa, with an estimated 11,627 residents in 2024. All 8 exchanges NANPA lists for its rate center are in area code 712. Storm Lake is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 712 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 |
|---|---|---|---|---|---|
| 712 | 8 | 100% | 1947 | none | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Storm Lake exchanges by carrier
6 carriers hold the 8 exchanges assigned to Storm Lake's rate center. Cellco Partnership d/b/a Verizon Wireless - Ia has the most, with 2. 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 |
|---|---|---|
| Cellco Partnership d/b/a Verizon Wireless - Ia | 2 | 25% |
| Qwest Corporation | 2 | 25% |
| Long Lines Metro, INC. - Ia | 1 | 13% |
| New Cingular Wireless PCS, LLC - Il | 1 | 13% |
| United States Cellular - Ia | 1 | 13% |
| Ip Horizon LLC | 1 | 13% |
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.
Storm Lake phone prefixes
These are the central office codes NANPA records for Storm Lake. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2019. 1 of the 8 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 712 | 213, 291, 299, 638, 730, 732, 749, 936 |
Source: NANPA utilized central office code file.
When Storm Lake's exchanges were assigned
Assignment dates show when each block of Storm Lake numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2010s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to Storm Lake
NANPA ties every exchange to a rate center. For Storm Lake that is STORM LAKE, so a number from one of these exchanges reads as local to people in and around Storm Lake.
If your business already has a Storm Lake number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Businesses around Storm Lake
Storm Lake is part of the Storm Lake, IA micropolitan area, home to 20,816 people in 2024. County Business Patterns counted 491 business establishments in the Storm Lake, IA micropolitan area in 2023, employing 8,855 people. The largest sectors by establishment count are retail trade (83), other services (except public administration) (58), and construction (54).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Insurance agencies and brokerages | 20 | — | — |
| Full-service restaurants | 10 | 147 | 14.7 |
| Law offices | 9 | 40 | 4.4 |
| Plumbing, heating and air-conditioning contractors | 9 | 44 | 4.9 |
| Electrical contractors | 8 | — | — |
| Limited-service restaurants | 8 | 212 | 26.5 |
| Residential remodelers | 7 | 22 | 3.1 |
| Landscaping services | 7 | 30 | 4.3 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Storm Lake number on Callata
For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.
If you already have a number in Storm Lake, 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.
An 18-person team is the benchmark here, the rounded average establishment size in the Storm Lake, IA micropolitan area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $540.00 a month and Ooma Office Pro $449.10. On Callata the same 18 people cost $359.00 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 | $359.00 | $4,308.00 |
| Quo (Starter) | $19.00 per user | $342.00 | $4,104.00 |
| Nextiva (Core) | $23.00 per user | $414.00 | $4,968.00 |
| Ooma (Office Pro) | $24.95 per user | $449.10 | $5,389.20 |
| Dialpad (Standard) | $27.00 per user | $486.00 | $5,832.00 |
| RingCentral (RingEX Core) | $30.00 per user | $540.00 | $6,480.00 |
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 Storm Lake, IA?
712. All exchanges NANPA lists for Storm Lake are in 712.
How many phone companies have exchanges in Storm Lake?
6, holding 8 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Storm Lake 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 Storm Lake?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).