Get a local business phone number in London, OH

London area codes

London city is a Census place in Madison County, Ohio, with an estimated 10,743 residents in 2024. NANPA lists 12 exchanges for its rate center across 2 area codes; 740 has the most (10, 83%). 740 is part of an overlay with 220, so a new local number in London may carry any of those codes depending on which have numbers available. London is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 740 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

London exchanges by carrier

9 carriers hold the 12 exchanges assigned to London's rate center. New Cingular Wireless PCS, LLC - Il has the most, with 2. 11 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.

London phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to London's rate center (LONDON). The earliest assignment date recorded in the file for these codes is 2002. 2 of the 12 were assigned in 2020 or later.

When London's exchanges were assigned

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

What makes a number local to London

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

Keeping an existing London number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 740 when you pick it.

Businesses around London

London is part of the Columbus, OH metro area, home to 2.2 million people in 2024. County Business Patterns counted 46,419 business establishments in the Columbus, OH metro area in 2023, employing 985,064 people. The largest sectors by establishment count are health care and social assistance (6,208), retail trade (5,594), and professional, scientific, and technical services (5,419).

A London number on Callata

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.

If you already have a number in London, 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Columbus, OH metro area, 21 users on RingCentral RingEX Core come to $630.00 a month and on Ooma Office Pro $523.95, at month-to-month list prices checked September 28, 2026. On Callata the same 21 people cost $419.00 a month, less than either per-seat plan.