CallataGuidesGet a local business phone number in Williamsburg, MA
Williamsburg's area code, prefixes and carriers from NANPA records, and how to put a Williamsburg number in front of your customers.
- Area code
- 413
- Exchanges
- 4NANPA-assigned
- Carriers
- 4
- Population
- 2,475Census 2024 est.
Area codes in Williamsburg
With 2,475 residents in the Census 2024 estimate, Williamsburg sits in Hampshire County, Massachusetts. All 4 exchanges NANPA lists for its rate center are in area code 413. Williamsburg is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 413 are dialed as seven digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 413 | 4 | 100% | 1947 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Phone carriers in Williamsburg
4 carriers hold the 4 exchanges assigned to Williamsburg's rate center. Verizon New England INC. has the most, with 1. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Williamsburg can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Verizon New England INC. | 1 | 25% |
| Level 3 Communications, LLC - Ma | 1 | 25% |
| Paetec Itel, LLC | 1 | 25% |
| Onvoy, LLC - Ma | 1 | 25% |
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 Williamsburg
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Williamsburg. The earliest assignment date recorded in the file for these codes is 2008. 1 of the 4 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 413 | 268, 340, 502, 724 |
Source: NANPA utilized central office code file.
When Williamsburg's exchanges were assigned
The table groups Williamsburg's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 50% |
| 2020s | 1 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to Williamsburg
What a caller sees as "local" is the area code plus prefix. In Williamsburg, those come from the WILLIAMSBG rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 413 numbers available change over time; porting an existing number is free.
The local business market
Williamsburg is part of the Amherst Town-Northampton, MA metro area, home to 165,000 people in 2024. County Business Patterns counted 3,491 business establishments in the Amherst Town, MA metro area in 2023, employing 49,009 people. The largest sectors by establishment count are retail trade (504), health care and social assistance (459), and construction (395).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 137 | 2,150 | 15.7 |
| Limited-service restaurants | 106 | 1,863 | 17.6 |
| Landscaping services | 101 | 346 | 3.4 |
| Residential remodelers | 80 | 257 | 3.2 |
| Dental offices | 62 | 546 | 8.8 |
| Plumbing, heating and air-conditioning contractors | 58 | 321 | 5.5 |
| Law offices | 54 | 275 | 5.1 |
| Physician practices | 52 | 1,304 | 25.1 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Williamsburg
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 Williamsburg 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 14 users, the rounded average establishment size in the Amherst Town, MA metro area. At list prices checked September 28, 2026, that is $349.30 a month on Ooma Office Pro and $420.00 on RingCentral RingEX Core. Callata comes to $279.00 a month for 14 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 | $279.00 | $3,348.00 |
| Quo (Starter) | $19.00 per user | $266.00 | $3,192.00 |
| Nextiva (Core) | $23.00 per user | $322.00 | $3,864.00 |
| Ooma (Office Pro) | $24.95 per user | $349.30 | $4,191.60 |
| Dialpad (Standard) | $27.00 per user | $378.00 | $4,536.00 |
| RingCentral (RingEX Core) | $30.00 per user | $420.00 | $5,040.00 |
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 Williamsburg, MA?
413. All exchanges NANPA lists for Williamsburg are in 413.
How many phone companies have exchanges in Williamsburg?
4, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Williamsburg 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 Williamsburg?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 14 users come to $279.00 a month. For comparison, 14 users on RingCentral RingEX Core list at $420.00 a month (checked September 28, 2026).