Area code 975
Where 975 is, how it is dialed, which carriers hold its numbers and how many of its codes are in use, from NANPA's 10/01/2026 files.
- State
- MO
- In service
- 2023
- Assigned codes
- 28of 800 possible
- Carriers
- 8
Where area code 975 is
975 is one of 9 geographic area codes serving Missouri; NANPA records its in-service date as October 13, 2023. It is an overlay: 975 and 816 cover the same territory, so neighbors on the same street can have different area codes. It is in the Central time zone. The places with the most assigned exchanges include Kansas City, Blue Springs, Adrian, Harrisonville, and Belton. By population, its largest named places are Kansas City, Lee's Summit, St. Joseph, Blue Springs, and Belton.
| Item | Value |
|---|---|
| State | Missouri |
| In service since | October 13, 2023 |
| Assigned by NANPA | November 1, 2000 |
| Overlay | Yes, with 816 |
| Parent area code (NANPA) | 816 |
| Time zone | Central |
| Local calls within the code | ten digits (area code plus number) |
| Assigned central office codes | 28 |
| Rate centers with codes | 15 |
| Carriers holding codes | 8 |
| Pooled codes | 27 |
| Codes assigned since 2020 | 28 |
| Relief planning in progress | No |
Source: NANPA NPA report and utilized central office code file, both dated 10/01/2026.
Where 975 numbers are local
975 holds 0.67% of the 4,168 central office codes assigned in Missouri, the 9th most of the state's 9 codes. 14 Census places could be matched to rate centers with 975 exchanges; the most populous are Kansas City (516,000), Lee's Summit (106,000), St. Joseph (71,098), and Blue Springs (61,246). Each place page lists the exact prefixes and carriers for that town.
| Place | Population (2024) | Area codes | Exchanges | Carriers |
|---|---|---|---|---|
| Kansas City, MO | 516,032 | 816, 975 | 455 | 40 |
| Lee's Summit, MO | 106,419 | 816, 975 | 21 | 8 |
| St. Joseph, MO | 71,098 | 816, 975 | 41 | 13 |
| Blue Springs, MO | 61,246 | 816, 975 | 17 | 7 |
| Belton, MO | 25,861 | 816, 975 | 18 | 7 |
| Harrisonville, MO | 9,980 | 816, 975 | 9 | 6 |
| Oak Grove, MO | 9,129 | 816, 975 | 6 | 4 |
| Cameron, MO | 7,352 | 816, 975 | 14 | 6 |
| Greenwood, MO | 6,235 | 816, 975 | 6 | 4 |
| Platte City, MO | 4,867 | 816, 975 | 5 | 4 |
| Adrian, MO | 1,775 | 816, 975 | 6 | 6 |
Population: Census Vintage 2024 estimates for the matched place. Exchanges and carriers: NANPA utilized code file.
Ten-digit and seven-digit dialing in 975
According to NANPA's dialing-plan data, local calls within 975 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits. Because local calls need the area code, business cards, signage and website copy should always show the full ten-digit number. NANPA's dialing-plan note for this code reads: "1+10 digit permissible at service provider discretion"
Who holds 975 exchanges
8 carriers hold the 28 central office codes assigned in 975. Onvoy, LLC - Mo has the most, with 14 (50%). 27 of the codes (96%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. The code holder is not necessarily the carrier serving a given number today, since numbers can be ported between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Onvoy, LLC - Mo | 14 | 50% |
| New Cingular Wireless PCS, LLC - Il | 7 | 25% |
| Cellco Partnership d/b/a Verizon Wireless - Mo | 2 | 7.1% |
| AT&T - Local | 1 | 3.6% |
| U.s. Telepacific Corp. d/b/a TPX Communications | 1 | 3.6% |
| Bandwidth.com CLEC, LLC - Mo | 1 | 3.6% |
| Shelcomm | 1 | 3.6% |
| 8x8, INC. | 1 | 3.6% |
Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.
Local calling areas in 975
NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 975 has codes in 15 rate centers. Rate center names in the file are abbreviations; where one matches a Census place, the table links to that city's local-number page.
| Rate center (NANPA) | Place | Codes |
|---|---|---|
| KANSASCITY | Kansas City, MO | 13 |
| BLUE SPG | Blue Springs, MO | 2 |
| ADRIAN | Adrian, MO | 1 |
| HARRISONVL | Harrisonville, MO | 1 |
| BELTON | Belton, MO | 1 |
| LEESSUMMIT | Lee's Summit, MO | 1 |
| CAMERON | Cameron, MO | 1 |
| ST JOSEPH | St. Joseph, MO | 1 |
| GREENWOOD | Greenwood, MO | 1 |
| OAK GROVE | Oak Grove, MO | 1 |
| DEARBORN | Dearborn, MO | 1 |
| CAMDEN PT | Camden Point, MO | 1 |
| LEAVEHLSNG | not matched | 1 |
| PLATTECITY | Platte City, MO | 1 |
| TRIMBLE | Trimble, MO | 1 |
Number supply in 975
An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 28 are assigned in 975, 3.5% of 800. 28 were assigned in 2020 or later.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2020s | 28 | 100% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Getting a 975 number for your business
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 area code 975 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.
Frequently asked questions
Where is area code 975?
975 is a geographic area code in Missouri. Places with the most assigned exchanges include Kansas City, Blue Springs, Adrian, and Harrisonville.
What time zone is area code 975 in?
NANPA lists 975 in the Central time zone.
When did area code 975 go into service?
NANPA records an in-service date of October 13, 2023. The code was assigned on November 1, 2000.
Is 975 an overlay area code?
Yes. It shares its territory with 816.
Can my business get a 975 phone number?
Callata includes up to 3 local numbers on its $99/month plan (5 users included). Which 975 numbers are open depends on carrier inventory when you choose, and you can port an existing number for free.