Get a local business phone number in Thermopolis, WY

Area codes in Thermopolis

Thermopolis, in Hot Springs County, Wyoming, had a Census-estimated population of 2,748 in July 2024. All 4 exchanges NANPA lists for its rate center are in area code 307. Thermopolis is in the Mountain time zone.

According to NANPA's dialing-plan data, local calls within 307 are dialed as seven digits and toll calls as 1 plus ten digits.

Thermopolis exchanges by carrier

4 carriers hold the 4 exchanges assigned to Thermopolis's rate center. New Cingular Wireless PCS, LLC has the most, with 1. 2 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.

Exchanges (NPA-NXX) assigned in Thermopolis

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Thermopolis. The earliest assignment date recorded in the file for these codes is 2002. None were assigned in 2020 or later.

What makes a number local to Thermopolis

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

Keeping an existing Thermopolis number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 307 when you pick it.

The local business market

Thermopolis is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 23,865 business establishments in Wyoming in 2023, employing 212,203 people. The largest sectors by establishment count are professional, scientific, and technical services (3,352), construction (2,981), and retail trade (2,674).

A Thermopolis number on Callata

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Thermopolis 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 Wyoming, 9 users on RingCentral RingEX Core come to $270.00 a month and on Ooma Office Pro $224.55, at month-to-month list prices checked September 28, 2026. Callata comes to $179.00 a month for 9 users ($99 a month with 5 users included, then $20 per additional user), below both.