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Get a local business phone number in Crystal City, TX

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

Area code
830
Exchanges
6NANPA-assigned
Carriers
4
Population
6,009Census 2024 est.

What area code is Crystal City, TX?

Crystal City, in Zavala County, Texas, had a Census-estimated population of 6,009 in July 2024. All 6 exchanges NANPA lists for its rate center are in area code 830. Crystal City is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 830 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Crystal City, TX
Area codeExchanges hereShareIn service sinceOverlay withTime zone
8306100%1997noneCentral

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

Who holds Crystal City phone exchanges

4 carriers hold the 6 exchanges assigned to Crystal City's rate center. New Cingular Wireless PCS, LLC - Il has the most, with 3. 6 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Carriers holding exchanges in Crystal City, TX
Carrier (NANPA operating company)ExchangesShare
New Cingular Wireless PCS, LLC - Il350%
Peerless Network of Texas, LLC - TX117%
Southwestern Bell117%
Onvoy, LLC - 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 Crystal City

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Crystal City. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.

Prefixes assigned in Crystal City, TX
Area codePrefixes (NXX)
830295, 374, 448, 602, 694, 854

Source: NANPA utilized central office code file.

What makes a number local to Crystal City

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

New local numbers are drawn from carrier inventory, so the exact 830 numbers available change over time; porting an existing number is free.

Businesses around Crystal City

Crystal City is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 670,878 business establishments in Texas in 2023, employing 12,012,629 people. The largest sectors by establishment count are retail trade (84,369), professional, scientific, and technical services (83,842), and health care and social assistance (80,576).

Selected industries in Texas, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants24,360545,40722.4
Physician practices21,500217,41310.1
Full-service restaurants20,819493,19723.7
Law offices13,83387,3636.3
Insurance agencies and brokerages12,21078,8856.5
Dental offices11,90286,3337.3
Offices of real estate agents and brokers11,40533,9893.0
Management consulting firms9,70580,4998.3

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

A Crystal City 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.

If you already have a number in Crystal City, 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 Texas, 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.

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 Crystal City, TX?

830. All exchanges NANPA lists for Crystal City are in 830.

How many phone companies have exchanges in Crystal City?

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

Can I keep my existing Crystal City 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 Crystal City?

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).