CallataGuidesGet a local business phone number in Spring Grove, IL
Spring Grove's area codes, prefixes and carriers from NANPA records, and how to put a Spring Grove number in front of your customers.
- Area code
- 815 / 779
- Exchanges
- 3NANPA-assigned
- Carriers
- 3
- Population
- 5,554Census 2024 est.
What area code is Spring Grove, IL?
With 5,554 residents in the Census 2024 estimate, Spring Grove sits in McHenry County, Illinois. NANPA lists 3 exchanges for its rate center across 2 area codes; 815 has the most (2, 67%). 815 is part of an overlay with 779, so a new local number in Spring Grove may carry any of those codes depending on which have numbers available. Spring Grove is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 815 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.
Phone carriers in Spring Grove
3 carriers hold the 3 exchanges assigned to Spring Grove's rate center. Stratus Networks has the most, with 1. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Spring Grove can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Stratus Networks | 1 | 33% |
| Comcast Ip Phone, LLC | 1 | 33% |
| Frontier North, INC. - Il | 1 | 33% |
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 Spring Grove
These are the central office codes NANPA records for Spring Grove. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2005. 1 of the 3 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 779 | 286 |
| 815 | 581, 675 |
Source: NANPA utilized central office code file.
When Spring Grove's exchanges were assigned
The table groups Spring Grove's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Spring Grove
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Spring Grove's numbers are rated to the SPRING GRV rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Spring Grove number.
Keeping an existing Spring Grove number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 815 when you pick it.
Who does business near Spring Grove
Spring Grove is part of the Chicago-Naperville-Elgin, IL-IN metro area, home to 9.4 million people in 2024. County Business Patterns counted 248,519 business establishments in the Chicago, IL-IN metro area in 2023, employing 4,285,971 people. The largest sectors by establishment count are professional, scientific, and technical services (32,828), health care and social assistance (29,768), and retail trade (25,308).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 8,179 | 139,869 | 17.1 |
| Full-service restaurants | 7,371 | 149,532 | 20.3 |
| Law offices | 5,865 | 46,449 | 7.9 |
| Physician practices | 5,693 | 80,101 | 14.1 |
| Residential remodelers | 5,230 | 12,655 | 2.4 |
| Dental offices | 4,881 | 30,767 | 6.3 |
| Offices of real estate agents and brokers | 4,252 | 11,786 | 2.8 |
| General freight trucking companies (local) | 4,040 | 14,869 | 3.7 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Spring Grove
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.
Porting a number you already use in Spring Grove 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.
The comparison below uses 17 users, the rounded average establishment size in the Chicago, IL-IN metro 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. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.
| 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 Spring Grove, IL?
Spring Grove has exchanges in 815 and 779; 815 has the most.
How many phone companies have exchanges in Spring Grove?
3, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Spring Grove 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 Spring Grove?
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).