Get a local business phone number in Ayer, MA
Ayer's area code, prefixes and carriers from NANPA records, and how to put a Ayer number in front of your customers.
- Area code
- 978
- Exchanges
- 10NANPA-assigned
- Carriers
- 5
- Population
- 9,010Census 2024 est.
What area code is Ayer, MA?
With 9,010 residents in the Census 2024 estimate, Ayer sits in Middlesex County, Massachusetts. All 10 exchanges NANPA lists for its rate center are in area code 978. 978 is part of an overlay with 351, so a new local number in Ayer may carry any of those codes depending on which have numbers available. Ayer is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 978 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 978 | 10 | 100% | 1997 | 351 | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds Ayer phone exchanges
5 carriers hold the 10 exchanges assigned to Ayer's rate center. Verizon New England INC. has the most, with 4. 9 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Verizon New England INC. | 4 | 40% |
| Paetec Itel, LLC | 3 | 30% |
| Mcimetro Access Transmission Services LLC | 1 | 10% |
| TC Systems, INC. | 1 | 10% |
| Level 3 Communications, LLC - Ma | 1 | 10% |
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 Ayer
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Ayer. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 978 | 391, 428, 487, 588, 615, 757, 772, 784, 796, 862 |
Source: NANPA utilized central office code file.
When Ayer's exchanges were assigned
Assignment dates show when each block of Ayer numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 33% |
| 2010s | 2 | 67% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in Ayer
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Ayer's numbers are rated to the AYER rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Ayer number.
New local numbers are drawn from carrier inventory, so the exact 978 numbers available change over time; porting an existing number is free.
Who does business near Ayer
Ayer is part of the Boston-Cambridge-Newton, MA-NH metro area, home to 5.0 million people in 2024. County Business Patterns counted 133,807 business establishments in the Boston, MA-NH metro area in 2023, employing 2,681,704 people. The largest sectors by establishment count are professional, scientific, and technical services (17,803), retail trade (15,568), and health care and social assistance (15,127).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 4,652 | 104,689 | 22.5 |
| Limited-service restaurants | 3,920 | 51,825 | 13.2 |
| Residential remodelers | 3,263 | 11,112 | 3.4 |
| Law offices | 2,967 | 24,707 | 8.3 |
| Landscaping services | 2,876 | 12,494 | 4.3 |
| Dental offices | 2,419 | 19,313 | 8.0 |
| Plumbing, heating and air-conditioning contractors | 2,169 | 22,860 | 10.5 |
| Beauty salons | 2,025 | 10,995 | 5.4 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Ayer 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.
If you already have a number in Ayer, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.
Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Boston, MA-NH metro area, 20 users on RingCentral RingEX Core come to $600.00 a month and on Ooma Office Pro $499.00, at month-to-month list prices checked September 28, 2026. On Callata the same 20 people cost $399.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $399.00 | $4,788.00 |
| Quo (Starter) | $19.00 per user | $380.00 | $4,560.00 |
| Nextiva (Core) | $23.00 per user | $460.00 | $5,520.00 |
| Ooma (Office Pro) | $24.95 per user | $499.00 | $5,988.00 |
| Dialpad (Standard) | $27.00 per user | $540.00 | $6,480.00 |
| RingCentral (RingEX Core) | $30.00 per user | $600.00 | $7,200.00 |
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 Ayer, MA?
978. All exchanges NANPA lists for Ayer are in 978.
How many phone companies have exchanges in Ayer?
5, holding 10 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Ayer 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 Ayer?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 20 users come to $399.00 a month. For comparison, 20 users on RingCentral RingEX Core list at $600.00 a month (checked September 28, 2026).