Get a local business phone number in Hammond, IN

Hammond area codes

Hammond, in Lake County, Indiana, had a Census-estimated population of 76,030 in July 2024. All 27 exchanges NANPA lists for its rate center are in area code 219. Hammond is in the Eastern and Central time zone.

According to NANPA's dialing-plan data, local calls within 219 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Hammond phone exchanges

11 carriers hold the 27 exchanges assigned to Hammond's rate center. Indiana Bell Tel CO INC has the most, with 10. 19 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.

Hammond phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Hammond's rate center (HAMMOND). The earliest assignment date recorded in the file for these codes is 2001. 7 of the 27 were assigned in 2020 or later.

When Hammond's exchanges were assigned

The table groups Hammond's exchanges by the decade NANPA recorded them as assigned.

What makes a number local to Hammond

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

Keeping an existing Hammond number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 219 when you pick it.

The local business market

Hammond is part of the Chicago-Naperville-Elgin, IL-IN metro area, home to 9.4 million people in 2024. County Business Patterns counted 248,519 business establishments in the Chicago, IL-IN metro area in 2023, employing 4,285,971 people. The largest sectors by establishment count are professional, scientific, and technical services (32,828), health care and social assistance (29,768), and retail trade (25,308).

A Hammond number on Callata

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 Hammond 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.

A 17-person team is the benchmark here, the rounded average establishment size in the Chicago, IL-IN metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $510.00 a month and Ooma Office Pro $424.15. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.