Get a local business phone number in Kiefer, OK

Area codes in Kiefer

With 2,271 residents in the Census 2024 estimate, Kiefer sits in Creek County, Oklahoma. NANPA lists 4 exchanges for its rate center across 2 area codes; 539 has the most (2, 50%). 539 is part of an overlay with 918, so a new local number in Kiefer may carry any of those codes depending on which have numbers available. Kiefer is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 539 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Kiefer

3 carriers hold the 4 exchanges assigned to Kiefer's rate center. Southwestern Bell has the most, with 2. 4 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 Kiefer

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Kiefer's rate center (KIEFER). The earliest assignment date recorded in the file for these codes is 2021. 1 of the 4 were assigned in 2020 or later.

How local numbers work in Kiefer

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

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

Who does business near Kiefer

Kiefer is part of the Tulsa, OK metro area, home to 1.1 million people in 2024. County Business Patterns counted 25,565 business establishments in the Tulsa, OK metro area in 2023, employing 402,255 people. The largest sectors by establishment count are retail trade (3,120), professional, scientific, and technical services (2,991), and health care and social assistance (2,959).

Setting up a Kiefer 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 Kiefer 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 16-person team is the benchmark here, the rounded average establishment size in the Tulsa, OK metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $480.00 a month and Ooma Office Pro $399.20. Callata comes to $319.00 a month for 16 users ($99 a month with 5 users included, then $20 per additional user), below both.