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Get a local business phone number in Gilmer, TX

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

Area code
903 / 430
Exchanges
6NANPA-assigned
Carriers
5
Population
5,207Census 2024 est.

Area codes in Gilmer

Gilmer city is a Census place in Upshur County, Texas, with an estimated 5,207 residents in 2024. NANPA lists 6 exchanges for its rate center across 2 area codes; 903 has the most (4, 67%). 903 is part of an overlay with 430, so a new local number in Gilmer may carry any of those codes depending on which have numbers available. Gilmer is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 903 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Gilmer, TX
Area codeExchanges hereShareIn service sinceOverlay withTime zone
903467%1990430Central
430233%2003903Central

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

Who holds Gilmer phone exchanges

5 carriers hold the 6 exchanges assigned to Gilmer's rate center. Frontier Southwest INC d/b/a Frontier Comm of Texas has the most, with 2. 5 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 Gilmer, TX
Carrier (NANPA operating company)ExchangesShare
Frontier Southwest INC d/b/a Frontier Comm of Texas233%
Onvoy Spectrum, LLC117%
Commio, LLC117%
Cellco Partnership d/b/a Verizon Wireless - TX117%
Etex Communcations, LLC d/b/a Etex Telecom - TX117%

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 Gilmer

These are the central office codes NANPA records for Gilmer. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 2 of the 6 were assigned in 2020 or later.

Prefixes assigned in Gilmer, TX
Area codePrefixes (NXX)
430314, 329
903402, 680, 841, 843

Source: NANPA utilized central office code file.

When Gilmer's exchanges were assigned

Assignment dates show when each block of Gilmer numbers was added to the local supply.

Gilmer, TX: exchanges by decade assigned
Decade assignedExchangesShare
2000s125%
2010s125%
2020s250%

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

How local numbers work in Gilmer

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

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

The local business market

Gilmer is part of the Longview, TX metro area, home to 295,000 people in 2024. County Business Patterns counted 6,852 business establishments in the Longview, TX metro area in 2023, employing 104,447 people. The largest sectors by establishment count are retail trade (993), other services (except public administration) (727), and health care and social assistance (706).

Selected industries in the Longview, TX metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants2405,43122.6
Full-service restaurants1684,01223.9
Law offices1494102.8
Insurance agencies and brokerages1426034.2
Physician practices1411,78012.6
Dental offices1027917.8
Plumbing, heating and air-conditioning contractors941,56516.6
Landscaping services723815.3

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

Setting up a Gilmer 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.

If you already have a number in Gilmer, 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.

The comparison below uses 15 users, the rounded average establishment size in the Longview, TX metro area. At list prices checked September 28, 2026, that is $374.25 a month on Ooma Office Pro and $450.00 on RingCentral RingEX Core. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.

Monthly list price for a 15-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$299.00$3,588.00
Quo (Starter)$19.00 per user$285.00$3,420.00
Nextiva (Core)$23.00 per user$345.00$4,140.00
Ooma (Office Pro)$24.95 per user$374.25$4,491.00
Dialpad (Standard)$27.00 per user$405.00$4,860.00
RingCentral (RingEX Core)$30.00 per user$450.00$5,400.00

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 Gilmer, TX?

Gilmer has exchanges in 903 and 430; 903 has the most.

How many phone companies have exchanges in Gilmer?

5, holding 6 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Gilmer 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 Gilmer?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 15 users come to $299.00 a month. For comparison, 15 users on RingCentral RingEX Core list at $450.00 a month (checked September 28, 2026).