CallataGuidesBusiness phone system for offices of certified public accountants in Philadelphia, PA-NJ-DE-MD
Offices of certified public accountants in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area: 1,024 establishments in 2023, the local area codes, and what phone service costs a 15-person team.
- Establishments
- 1,024CBP 2023
- Employees
- 15,443mid-March 2023
- Per 100k residents
- 16.2U.S. 16.2
- Rank
- 8th of 864areas by count
The accounting firm market in Philadelphia, PA-NJ-DE-MD
The Census Bureau's 2023 County Business Patterns lists 1,024 establishments classified as Offices of Certified Public Accountants (NAICS 541211) in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area. They employed 15,443 people in mid-March and paid $1.8 billion in annual payroll. By establishment count the area is 8th out of 864 areas with published figures for offices of certified public accountants.
Measured against its 6.3 million residents (2024 estimate), the area has 16.2 offices of certified public accountants per 100,000 people; the U.S. rate is 16.2, so Philadelphia, PA-NJ-DE-MD is in line with the national figure. The average establishment here has 15.1 employees, compared with 11.0 nationally. Payroll per employee comes to $113,426, 12.6% above the national $100,691.
| Measure | Philadelphia, PA-NJ-DE-MD | Pennsylvania | United States |
|---|---|---|---|
| Establishments | 1,024 | 1,838 | 55,052 |
| Mid-March employees | 15,443 | 27,822 | 604,209 |
| Annual payroll | $1,751,640,000 | $2,673,700,000 | $60,838,681,000 |
| Employees per establishment | 15.1 | 15.1 | 11.0 |
| Payroll per employee | $113,426 | $96,100 | $100,691 |
| Establishments per 100,000 residents | 16.2 | 14.1 | 16.2 |
Census County Business Patterns 2023 (mid-March employment; annual payroll). Employees and payroll flagged high-noise are shown but not used in the text. Residents: Census Vintage 2024 estimates.
Establishment size: offices of certified public accountants in Philadelphia, PA-NJ-DE-MD
Of the offices of certified public accountants in Philadelphia, PA-NJ-DE-MD that had employees in March 2023, 64.0% had fewer than five (the U.S. share is 64.8%). 81.0% had fewer than ten. For a business of a few people, phone coverage is a staffing question as much as a technology one: someone has to be free to pick up, or the call needs somewhere sensible to go.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 654 | 64.0% | 64.8% |
| 5–9 employees | 174 | 17.0% | 18.8% |
| 10–19 employees | 106 | 10.4% | 9.2% |
| 20–49 employees | 53 | 5.2% | 4.3% |
| 50 or more employees | 35 | 3.4% | 2.9% |
Employment-size classes count establishments by mid-March 2023 employment. Establishments with no March employees are excluded from the size classes, so shares are of establishments with employees. Source: Census County Business Patterns 2023.
What offices of certified public accountants in Philadelphia, PA-NJ-DE-MD use the phone for
CPA firms see sharp call peaks around filing deadlines, when the same small staff answers questions from many clients at once. Capturing every call and routing it to the right preparer keeps deadline weeks manageable.
Calls an accounting firm in Philadelphia, PA-NJ-DE-MD might handle in a typical week include:
- A small business owner calls to ask about bookkeeping help.
- The firm calls a client to request a signature.
- A client calls to ask whether a missing tax form has been received.
Texting clients
Firms text document reminders and let clients know when returns are ready to sign.
Team texting on Callata runs from your business number, so replies come from the practice or shop rather than someone's personal phone. It turns on after the one-time $49 carrier registration (10DLC) is approved.
Phone system pricing for a 15-person accounting firm
The average accounting firm in Philadelphia, PA-NJ-DE-MD has 15.1 employees, so a 15-person team is a reasonable benchmark. Priced per seat, 15 users would run $450.00 a month on RingCentral RingEX Core and $374.25 on Ooma Office Pro (month-to-month list prices, checked September 28, 2026). Callata comes to $299.00 a month for 15 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $1,812 less than RingCentral for an accounting firm in Philadelphia, PA-NJ-DE-MD of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
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.
Which area code to use in Philadelphia, PA-NJ-DE-MD
NANPA records place the exchanges of the area's named cities and towns in 8 area codes. 856 has the most, with 478 of 1,515 exchanges (32%). A local number lets clients in Philadelphia, PA-NJ-DE-MD call without dialing out of area. Callata includes up to 3 local numbers, and which numbers are open in an area code depends on carrier inventory when you choose.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 856 | 478 | Eastern | 1999 | none |
| 302 | 306 | Eastern | 1947 | none |
| 267 | 202 | Eastern | 1999 | 215, 445 |
| 484 | 157 | Eastern | 1999 | 610, 835 |
| 609 | 153 | Eastern | 1957 | 640 |
| 610 | 95 | Eastern | 1994 | 484, 835 |
| 215 | 81 | Eastern | 1947 | 267, 445 |
| 445 | 43 | Eastern | 2018 | 215, 267 |
Exchanges are NANPA-assigned central office codes (NPA-NXX) in the rate centers matched to the area's named places. Source: NANPA utilized code and NPA reports.
How Callata works for offices of certified public accountants
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 Philadelphia, PA-NJ-DE-MD 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.
Avoid sending taxpayer identification numbers or full financial details by text.
Frequently asked questions
How many offices of certified public accountants are there in Philadelphia, PA-NJ-DE-MD?
Census County Business Patterns counted 1,024 offices of certified public accountants in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area in 2023. They employed 15,443 people in mid-March.
What does a business phone system cost for a 15-person accounting firm?
At month-to-month list prices checked September 28, 2026, 15 users cost $450.00 a month on RingCentral RingEX Core and $374.25 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $299.00.
What area code should an accounting firm in Philadelphia, PA-NJ-DE-MD use?
Area code 856 has the most assigned exchanges among the area's named places, followed by 302 and 267. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for an accounting firm?
Yes. Callata's optional AI agents can answer when the team is busy or closed, take a message, text, email or transfer the call. They disclose that they are AI and are billed from prepaid AI minutes at $0.25 per minute. Avoid sending taxpayer identification numbers or full financial details by text.