District of Columbia business phone guide

District of Columbia by the numbers

District of Columbia had 702,000 residents in the Census Bureau's July 2024 estimate, up 1.8% from April 2020. The U.S. population grew 2.6% over the same period. County Business Patterns counted 23,801 business establishments in the state in 2023 with 558,653 mid-March employees and $56.8 billion in annual payroll. The average establishment has 23.5 employees. 50.1% of establishments with employees had fewer than five people. The three largest sectors by establishments are professional, scientific, and technical services (5,738), other services (except public administration) (4,286), and accommodation and food services (2,817).

District of Columbia compared with the U.S.

District of Columbia has 33.9 business establishments per 1,000 residents, 37.9% above the U.S. figure of 24.6. Establishments average 23.5 employees against 16.7 nationally, and payroll per employee is $101,634 (48.7% above the U.S. $68,342). 50.1% of establishments with employees have fewer than five people (U.S.: 55.5%), while 8.6% have 50 or more. Averages are pulled up by large employers; the size table is the better guide to what a typical business here looks like.

Phone numbers and carriers in District of Columbia

NANPA lists 2 geographic area codes in service in District of Columbia, with 855 central office codes assigned across 1 rate centers and held by 43 carriers. 202 has the most assigned codes (784). 2 of them are part of overlays. The newest in service is 771, since November 9, 2021.

Small-business industries in District of Columbia

Among the 141 phone-heavy small-business industries these guides cover, the largest in District of Columbia by establishment count are law offices (1,197), full-service restaurants (974), and management consulting firms (925). Follow an industry for its metro-level counts and what a phone system costs a typical team.

Metro and micropolitan areas

1 Census metro or micropolitan area include part of District of Columbia. The largest is Washington, DC-VA-MD-WV with 6.4 million residents.

Picking a local number in District of Columbia

Every District of Columbia area code requires ten-digit dialing for local calls, according to NANPA's dialing-plan data, so customers always see and dial the full number. In overlays (202/771), the codes share one territory, so a new number may come from any code in the overlay. The city pages show which codes dominate each place, which is the best guide to the number your customers will recognize.

What phone service costs a District of Columbia business

Per-seat phone plans multiply by headcount. For the rounded average establishment size in District of Columbia, 23 users on RingCentral RingEX Core come to $690.00 a month and on Ooma Office Pro $573.85, at month-to-month list prices checked September 28, 2026. Callata comes to $459.00 a month for 23 users ($99 a month with 5 users included, then $20 per additional user), below both.

Callata in District of Columbia

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 District of Columbia 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.