CallataGuidesGet a local business phone number in Du Quoin, IL
Du Quoin's area code, prefixes and carriers from NANPA records, and how to put a Du Quoin number in front of your customers.
- Area code
- 618
- Exchanges
- 3NANPA-assigned
- Carriers
- 3
- Population
- 5,611Census 2024 est.
What area code is Du Quoin, IL?
Du Quoin city is a Census place in Perry County, Illinois, with an estimated 5,611 residents in 2024. All 3 exchanges NANPA lists for its rate center are in area code 618. 618 is part of an overlay with 730, so a new local number in Du Quoin may carry any of those codes depending on which have numbers available. Du Quoin is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 618 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 |
|---|---|---|---|---|---|
| 618 | 3 | 100% | 1947 | 730 | Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Du Quoin exchanges by carrier
3 carriers hold the 3 exchanges assigned to Du Quoin's rate center. Frontier North, INC. - Il has the most, with 1. 3 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 |
|---|---|---|
| Frontier North, INC. - Il | 1 | 33% |
| Teleport Communications America, LLC - Il | 1 | 33% |
| Level 3 Communications, LLC - 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.
Du Quoin phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Du Quoin's rate center (DU QUOIN). The earliest assignment date recorded in the file for these codes is 2002. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 618 | 542, 626, 790 |
Source: NANPA utilized central office code file.
When Du Quoin's exchanges were assigned
Assignment dates show when each block of Du Quoin numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2010s | 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 Du Quoin
What a caller sees as "local" is the area code plus prefix. In Du Quoin, those come from the DU QUOIN rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 618 numbers available change over time; porting an existing number is free.
Businesses around Du Quoin
Du Quoin is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 322,415 business establishments in Illinois in 2023, employing 5,661,761 people. The largest sectors by establishment count are professional, scientific, and technical services (37,946), health care and social assistance (37,597), and retail trade (35,801).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 10,622 | 189,552 | 17.8 |
| Full-service restaurants | 9,928 | 188,628 | 19.0 |
| Law offices | 6,918 | 52,434 | 7.6 |
| Physician practices | 6,775 | 106,595 | 15.7 |
| Residential remodelers | 6,209 | 15,603 | 2.5 |
| Dental offices | 5,781 | 37,948 | 6.6 |
| Insurance agencies and brokerages | 5,679 | 40,486 | 7.1 |
| Landscaping services | 5,034 | 23,331 | 4.6 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Du Quoin
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 Du Quoin, 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 Illinois, 18 users on RingCentral RingEX Core come to $540.00 a month and on Ooma Office Pro $449.10, at month-to-month list prices checked September 28, 2026. 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 Du Quoin, IL?
618. All exchanges NANPA lists for Du Quoin are in 618.
How many phone companies have exchanges in Du Quoin?
3, holding 3 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Du Quoin 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 Du Quoin?
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).