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Get a local business phone number in Grayville, IL

Grayville's area code, prefixes and carriers from NANPA records, and how to put a Grayville number in front of your customers.

Area code
618
Exchanges
2NANPA-assigned
Carriers
2
Population
1,502Census 2024 est.

What area code is Grayville, IL?

Grayville city is a Census place in White County, Illinois, with an estimated 1,502 residents in 2024. All 2 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 Grayville may carry any of those codes depending on which have numbers available. Grayville 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 codes with exchanges in Grayville, IL
Area codeExchanges hereShareIn service sinceOverlay withTime zone
6182100%1947730Central

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Phone carriers in Grayville

2 carriers hold the 2 exchanges assigned to Grayville's rate center. Frontier North, INC. - Il has the most, with 1. 2 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Grayville can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Grayville, IL
Carrier (NANPA operating company)ExchangesShare
Frontier North, INC. - Il150%
New Cingular Wireless PCS, LLC - Ga150%

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 Grayville

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Grayville's rate center (GRAYVILLE). The earliest assignment date recorded in the file for these codes is 2014. None were assigned in 2020 or later.

Prefixes assigned in Grayville, IL
Area codePrefixes (NXX)
618375, 609

Source: NANPA utilized central office code file.

Rate centers and local calling in Grayville

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Grayville's numbers are rated to the GRAYVILLE rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Grayville number.

Keeping an existing Grayville number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 618 when you pick it.

Businesses around Grayville

Grayville 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).

Selected industries in Illinois, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants10,622189,55217.8
Full-service restaurants9,928188,62819.0
Law offices6,91852,4347.6
Physician practices6,775106,59515.7
Residential remodelers6,20915,6032.5
Dental offices5,78137,9486.6
Insurance agencies and brokerages5,67940,4867.1
Landscaping services5,03423,3314.6

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Setting up a Grayville business line

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.

Porting a number you already use in Grayville 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.

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. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for an 18-person team
Provider (plan)Pricing basisPer monthPer 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 Grayville, IL?

618. All exchanges NANPA lists for Grayville are in 618.

How many phone companies have exchanges in Grayville?

2, holding 2 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Grayville 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 Grayville?

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).