Get a local business phone number in Delmar, MD

What area code is Delmar, MD?

Delmar, in Wicomico County, Maryland, had a Census-estimated population of 4,748 in July 2024. NANPA lists 7 exchanges for its rate center across 3 area codes; 443 has the most (4, 57%). 443 is part of an overlay with 410 and 667, so a new local number in Delmar may carry any of those codes depending on which have numbers available. Delmar is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 443 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Delmar exchanges by carrier

5 carriers hold the 7 exchanges assigned to Delmar's rate center. Cellco Partnership d/b/a Verizon Wireless - MD has the most, with 3. 7 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.

Delmar phone prefixes

These are the central office codes NANPA records for Delmar. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2009. 2 of the 7 were assigned in 2020 or later.

When Delmar's exchanges were assigned

Assignment dates show when each block of Delmar numbers was added to the local supply.

Rate centers and local calling in Delmar

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Delmar's numbers are rated to the DELMAR rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Delmar number.

If your business already has a Delmar number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

Who does business near Delmar

Delmar is part of the Salisbury, MD metro area, home to 132,000 people in 2024. County Business Patterns counted 2,855 business establishments in the Salisbury, MD metro area in 2023, employing 39,390 people. The largest sectors by establishment count are health care and social assistance (411), retail trade (400), and other services (except public administration) (319).

A Delmar number on Callata

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.

If you already have a number in Delmar, 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.

The comparison below uses 14 users, the rounded average establishment size in the Salisbury, MD 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. On Callata the same 14 people cost $279.00 a month, less than either per-seat plan.