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Get a local business phone number in Dyer, IN

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

Area code
219
Exchanges
12NANPA-assigned
Carriers
7
Population
16,341Census 2024 est.

Dyer area codes

Dyer, in Lake County, Indiana, had a Census-estimated population of 16,341 in July 2024. All 12 exchanges NANPA lists for its rate center are in area code 219. Dyer is in the Eastern and Central time zone.

According to NANPA's dialing-plan data, local calls within 219 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Dyer, IN
Area codeExchanges hereShareIn service sinceOverlay withTime zone
21912100%1948noneEastern and Central

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

Who holds Dyer phone exchanges

7 carriers hold the 12 exchanges assigned to Dyer's rate center. Cellco Partnership d/b/a Verizon Wireless - In has the most, with 3. 10 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Dyer can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Dyer, IN
Carrier (NANPA operating company)ExchangesShare
Cellco Partnership d/b/a Verizon Wireless - In325%
Indiana Bell Tel CO INC325%
Level 3 Communications, LLC - In217%
Onvoy, LLC - In18.3%
Ton80 Communications, LLC18.3%
Paetec Itel, LLC18.3%
Fractel, LLC18.3%

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.

Dyer phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Dyer's rate center (DYER). The earliest assignment date recorded in the file for these codes is 2003. 3 of the 12 were assigned in 2020 or later.

Prefixes assigned in Dyer, IN
Area codePrefixes (NXX)
219227, 319, 322, 360, 440, 463, 491, 515, 704, 864, 865, 867

Source: NANPA utilized central office code file.

When Dyer's exchanges were assigned

The table groups Dyer's exchanges by the decade NANPA recorded them as assigned.

Dyer, IN: exchanges by decade assigned
Decade assignedExchangesShare
2000s222%
2010s444%
2020s333%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

What makes a number local to Dyer

What a caller sees as "local" is the area code plus prefix. In Dyer, those come from the DYER rate center, as recorded by NANPA.

If your business already has a Dyer number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

The local business market

Dyer 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).

Selected industries in the Chicago, IL-IN metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants8,179139,86917.1
Full-service restaurants7,371149,53220.3
Law offices5,86546,4497.9
Physician practices5,69380,10114.1
Residential remodelers5,23012,6552.4
Dental offices4,88130,7676.3
Offices of real estate agents and brokers4,25211,7862.8
General freight trucking companies (local)4,04014,8693.7

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

A Dyer number on Callata

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 Dyer 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.

Monthly list price for a 17-person team
Provider (plan)Pricing basisPer monthPer 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 Dyer, IN?

219. All exchanges NANPA lists for Dyer are in 219.

How many phone companies have exchanges in Dyer?

7, holding 12 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Dyer 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 Dyer?

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).