Get a local business phone number in Oswego, KS

Area codes in Oswego

Oswego city is a Census place in Labette County, Kansas, with an estimated 1,625 residents in 2024. All 2 exchanges NANPA lists for its rate center are in area code 620. Oswego is in the Central and Mountain time zone.

According to NANPA's dialing-plan data, local calls within 620 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Oswego phone exchanges

2 carriers hold the 2 exchanges assigned to Oswego's rate center. Bandwidth.com CLEC, LLC - KS has the most, with 1. 2 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.

Local prefixes for Oswego

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Oswego. The earliest assignment date recorded in the file for these codes is 2013. None were assigned in 2020 or later.

Rate centers and local calling in Oswego

NANPA ties every exchange to a rate center. For Oswego that is OSWEGO, so a number from one of these exchanges reads as local to people in and around Oswego.

Keeping an existing Oswego number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 620 when you pick it.

Who does business near Oswego

Oswego is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 76,139 business establishments in Kansas in 2023, employing 1,248,825 people. The largest sectors by establishment count are retail trade (9,580), health care and social assistance (9,075), and other services (except public administration) (8,071).

A Oswego 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 Oswego, 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 Kansas, 16 users on RingCentral RingEX Core come to $480.00 a month and on Ooma Office Pro $399.20, at month-to-month list prices checked September 28, 2026. On Callata the same 16 people cost $319.00 a month, less than either per-seat plan.