CallataGuidesGet a local business phone number in Bertram, TX
Bertram's area codes, prefixes and carriers from NANPA records, and how to put a Bertram number in front of your customers.
- Area code
- 737 / 512
- Exchanges
- 7NANPA-assigned
- Carriers
- 5
- Population
- 2,020Census 2024 est.
What area code is Bertram, TX?
Bertram city is a Census place in Burnet County, Texas, with an estimated 2,020 residents in 2024. NANPA lists 7 exchanges for its rate center across 2 area codes; 737 has the most (4, 57%). 737 is part of an overlay with 512, so a new local number in Bertram may carry any of those codes depending on which have numbers available. Bertram is in the Central time zone.
According to NANPA's dialing-plan data, local calls within 737 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
Who holds Bertram phone exchanges
5 carriers hold the 7 exchanges assigned to Bertram's rate center. Onvoy, LLC - TX has the most, with 3. 7 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Bertram can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Onvoy, LLC - TX | 3 | 43% |
| Telnyx LLC | 1 | 14% |
| Frontier Southwest INC d/b/a Frontier Comm of Texas | 1 | 14% |
| Bandwidth.com CLEC, LLC - TX | 1 | 14% |
| Ton80 Communications, LLC | 1 | 14% |
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.
Bertram phone prefixes
These are the central office codes NANPA records for Bertram. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2014. 2 of the 7 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 512 | 277, 355, 572 |
| 737 | 238, 307, 510, 746 |
Source: NANPA utilized central office code file.
When Bertram's exchanges were assigned
The table groups Bertram's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2010s | 3 | 60% |
| 2020s | 2 | 40% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Bertram
What a caller sees as "local" is the area code plus prefix. In Bertram, those come from the BERTRAM rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 737 numbers available change over time; porting an existing number is free.
Who does business near Bertram
Bertram 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).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 24,360 | 545,407 | 22.4 |
| Physician practices | 21,500 | 217,413 | 10.1 |
| Full-service restaurants | 20,819 | 493,197 | 23.7 |
| Law offices | 13,833 | 87,363 | 6.3 |
| Insurance agencies and brokerages | 12,210 | 78,885 | 6.5 |
| Dental offices | 11,902 | 86,333 | 7.3 |
| Offices of real estate agents and brokers | 11,405 | 33,989 | 3.0 |
| Management consulting firms | 9,705 | 80,499 | 8.3 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Bertram 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 Bertram 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 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. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.
| Provider (plan) | Pricing basis | Per month | Per 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 Bertram, TX?
Bertram has exchanges in 737 and 512; 737 has the most.
How many phone companies have exchanges in Bertram?
5, holding 7 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Bertram 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 Bertram?
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).