Get a local business phone number in Greybull, WY

What area code is Greybull, WY?

Greybull town is a Census place in Big Horn County, Wyoming, with an estimated 1,715 residents in 2024. All 2 exchanges NANPA lists for its rate center are in area code 307. Greybull 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.

Phone carriers in Greybull

2 carriers hold the 2 exchanges assigned to Greybull's rate center. Bresnan Broadband of Wyoming, LLC - WY [charter] has the most, with 1. 1 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Greybull can come from any of these blocks; once it is yours, porting lets it move between providers.

Local prefixes for Greybull

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Greybull. None were assigned in 2020 or later.

How local numbers work in Greybull

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

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

Who does business near Greybull

Greybull 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).

Business phone service in Greybull

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 Greybull 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.

The comparison below uses 9 users, the rounded average establishment size in Wyoming. At list prices checked September 28, 2026, that is $224.55 a month on Ooma Office Pro and $270.00 on RingCentral RingEX Core. Callata comes to $179.00 a month for 9 users ($99 a month with 5 users included, then $20 per additional user), below both.