CallataGuidesGet a local business phone number in Mendota, IL
Mendota's area codes, prefixes and carriers from NANPA records, and how to put a Mendota number in front of your customers.
- Area code
- 815 / 779
- Exchanges
- 6NANPA-assigned
- Carriers
- 5
- Population
- 7,034Census 2024 est.
What area code is Mendota, IL?
Mendota township is a Census town in LaSalle County, Illinois, with an estimated 7,034 residents in 2024. NANPA lists 6 exchanges for its rate center across 2 area codes; 815 has the most (5, 83%). 815 is part of an overlay with 779, so a new local number in Mendota may carry any of those codes depending on which have numbers available. Mendota 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.
Who holds Mendota phone exchanges
5 carriers hold the 6 exchanges assigned to Mendota's rate center. Frontier North, INC. - Il has the most, with 2. 5 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Mendota can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Frontier North, INC. - Il | 2 | 33% |
| T-mobile USA, INC. | 1 | 17% |
| Metropcs, INC. | 1 | 17% |
| Level 3 Communications, LLC - Il | 1 | 17% |
| Cellco Partnership d/b/a Verizon Wireless - Il | 1 | 17% |
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 Mendota
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Mendota's rate center (MENDOTA). The earliest assignment date recorded in the file for these codes is 2001. 1 of the 6 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 779 | 329 |
| 815 | 503, 538, 539, 615, 910 |
Source: NANPA utilized central office code file.
When Mendota's exchanges were assigned
Assignment dates show when each block of Mendota numbers was added to the local supply.
| 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.
Rate centers and local calling in Mendota
What a caller sees as "local" is the area code plus prefix. In Mendota, those come from the MENDOTA rate center, as recorded by NANPA.
Keeping an existing Mendota 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 Mendota
Mendota is part of the Ottawa, IL micropolitan area, home to 147,000 people in 2024. County Business Patterns counted 3,355 business establishments in the Ottawa, IL micropolitan area in 2023, employing 44,039 people. The largest sectors by establishment count are retail trade (486), accommodation and food services (429), and other services (except public administration) (403).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 148 | 1,643 | 11.1 |
| Limited-service restaurants | 105 | 1,866 | 17.8 |
| Drinking places | 91 | 410 | 4.5 |
| Insurance agencies and brokerages | 67 | 234 | 3.5 |
| General automotive repair shops | 55 | 282 | 5.1 |
| Landscaping services | 54 | 139 | 2.6 |
| General freight trucking companies (local) | 53 | 158 | 3.0 |
| Law offices | 52 | 223 | 4.3 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Mendota business line
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 Mendota, 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 the Ottawa, IL micropolitan area, 13 users on RingCentral RingEX Core come to $390.00 a month and on Ooma Office Pro $324.35, at month-to-month list prices checked September 28, 2026. On Callata the same 13 people cost $259.00 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 | $259.00 | $3,108.00 |
| Quo (Starter) | $19.00 per user | $247.00 | $2,964.00 |
| Nextiva (Core) | $23.00 per user | $299.00 | $3,588.00 |
| Ooma (Office Pro) | $24.95 per user | $324.35 | $3,892.20 |
| Dialpad (Standard) | $27.00 per user | $351.00 | $4,212.00 |
| RingCentral (RingEX Core) | $30.00 per user | $390.00 | $4,680.00 |
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 Mendota, IL?
Mendota has exchanges in 815 and 779; 815 has the most.
How many phone companies have exchanges in Mendota?
5, holding 6 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Mendota 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 Mendota?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 13 users come to $259.00 a month. For comparison, 13 users on RingCentral RingEX Core list at $390.00 a month (checked September 28, 2026).