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Get a local business phone number in Lombard, IL

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

Area code
630 / 331
Exchanges
50NANPA-assigned
Carriers
13
Population
44,490Census 2024 est.

What area code is Lombard, IL?

With 44,490 residents in the Census 2024 estimate, Lombard sits in DuPage County, Illinois. NANPA lists 50 exchanges for its rate center across 2 area codes; 630 has the most (37, 74%). 630 is part of an overlay with 331, so a new local number in Lombard may carry any of those codes depending on which have numbers available. Lombard is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 630 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.

Area codes with exchanges in Lombard, IL
Area codeExchanges hereShareIn service sinceOverlay withTime zone
6303774%1996331Central
3311326%2007630Central

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

Who holds Lombard phone exchanges

13 carriers hold the 50 exchanges assigned to Lombard's rate center. Illinois Bell Tel CO has the most, with 17. 36 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.

Carriers holding exchanges in Lombard, IL
Carrier (NANPA operating company)ExchangesShare
Illinois Bell Tel CO1734%
T-mobile USA, INC.612%
Onvoy, LLC510%
Mcimetro Access Transmission Services LLC - Il510%
New Cingular Wireless PCS, LLC - Il48.0%
Teleport Communications America, LLC - Il48.0%
Paetec Itel, LLC24.0%
Level 3 Communications, LLC - Il24.0%
Vonage America LLC12.0%
Ton80 Communications, LLC12.0%
Fractel, LLC12.0%
Mcimetro Access Transmission Services LLC12.0%

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.

Lombard phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Lombard's rate center (LOMBARD). The earliest assignment date recorded in the file for these codes is 2001. 6 of the 50 were assigned in 2020 or later.

Prefixes assigned in Lombard, IL
Area codePrefixes (NXX)
331217, 241, 242, 243, 267, 277, 307, 315, 322, 462, 551, 627, 899
630261, 268, 282, 290, 317, 376, 396, 424, 426, 489, 495, 519, 576, 599, 613, 620, 627, 629, 652, 656, 678, 691, 693, 705, 748, 785, 792, 812, 827, 847, 873, 889, 916, 925, 932, 935, 953

Source: NANPA utilized central office code file.

When Lombard's exchanges were assigned

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

Lombard, IL: exchanges by decade assigned
Decade assignedExchangesShare
2000s741%
2010s424%
2020s635%

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

How local numbers work in Lombard

NANPA ties every exchange to a rate center. For Lombard that is LOMBARD, so a number from one of these exchanges reads as local to people in and around Lombard.

Keeping an existing Lombard number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 630 when you pick it.

Who does business near Lombard

Lombard 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.

Setting up a Lombard business line

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in Lombard 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.

A 17-person team is the benchmark here, the rounded average establishment size in the Chicago, IL-IN metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $510.00 a month and Ooma Office Pro $424.15. 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 Lombard, IL?

Lombard has exchanges in 630 and 331; 630 has the most.

How many phone companies have exchanges in Lombard?

13, holding 50 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Lombard 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 Lombard?

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).