Get a local business phone number in Bay St. Louis, MS

What area code is Bay St. Louis, MS?

Bay St. Louis city is a Census place in Hancock County, Mississippi, with an estimated 10,526 residents in 2024. All 21 exchanges NANPA lists for its rate center are in area code 228. Bay St. Louis is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 228 are dialed as seven digits and toll calls as 1 plus ten digits.

Who holds Bay St. Louis phone exchanges

9 carriers hold the 21 exchanges assigned to Bay St. Louis's rate center. Bellsouth Telecomm INC d/b/a South Central Bell Tel has the most, with 7. 15 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Bay St. Louis phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Bay St. Louis's rate center (BAYSTLOUIS). The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.

When Bay St. Louis's exchanges were assigned

The table groups Bay St. Louis's exchanges by the decade NANPA recorded them as assigned.

How local numbers work in Bay St. Louis

What a caller sees as "local" is the area code plus prefix. In Bay St. Louis, those come from the BAYSTLOUIS rate center, as recorded by NANPA.

New local numbers are drawn from carrier inventory, so the exact 228 numbers available change over time; porting an existing number is free.

Who does business near Bay St. Louis

Bay St. Louis is part of the Gulfport-Biloxi, MS metro area, home to 427,000 people in 2024. County Business Patterns counted 7,882 business establishments in the Gulfport, MS metro area in 2023, employing 131,721 people. The largest sectors by establishment count are retail trade (1,471), accommodation and food services (1,034), and health care and social assistance (962).

Setting up a Bay St. Louis business line

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in Bay St. Louis 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 17 users, the rounded average establishment size in the Gulfport, MS metro area. At list prices checked September 28, 2026, that is $424.15 a month on Ooma Office Pro and $510.00 on RingCentral RingEX Core. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.