Get a local business phone number in Williamson, WV

What area code is Williamson, WV?

With 2,779 residents in the Census 2024 estimate, Williamson sits in Mingo County, West Virginia. NANPA lists 5 exchanges for its rate center across 2 area codes; 304 has the most (4, 80%). 304 is part of an overlay with 681, so a new local number in Williamson may carry any of those codes depending on which have numbers available. Williamson is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 304 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Williamson phone exchanges

4 carriers hold the 5 exchanges assigned to Williamson's rate center. Frontier West Virginia INC. has the most, with 2. 3 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.

Williamson phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Williamson's rate center (WILLIAMSON). The earliest assignment date recorded in the file for these codes is 2008. 1 of the 5 were assigned in 2020 or later.

When Williamson's exchanges were assigned

The table groups Williamson's exchanges by the decade NANPA recorded them as assigned.

How local numbers work in Williamson

NANPA ties every exchange to a rate center. For Williamson that is WILLIAMSON, so a number from one of these exchanges reads as local to people in and around Williamson.

Keeping an existing Williamson number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 304 when you pick it.

Who does business near Williamson

Williamson is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 35,839 business establishments in West Virginia in 2023, employing 551,240 people. The largest sectors by establishment count are retail trade (5,696), health care and social assistance (5,019), and other services (except public administration) (4,255).

Setting up a Williamson business line

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 Williamson 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.

A 15-person team is the benchmark here, the rounded average establishment size in West Virginia. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $450.00 a month and Ooma Office Pro $374.25. Callata comes to $299.00 a month for 15 users ($99 a month with 5 users included, then $20 per additional user), below both.