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Area code

Area code 235 — Birch Tree, MO

Missouri · in service since March 24, 2024

Area code 235 covers parts of Missouri; the place with the most of its prefixes is Birch Tree. It is an overlay: 573 serves the same area, so neighbors can have different area codes.

Overlay, same area: 573

Local time in Birch Tree

Central Time ·

Spam reports from Sep 23 – Oct 22, 2026

Low #400 of 461 codes

27 FTC complaints

Top subject: debt reduction · 63% robocalls

Consumer reports, not verified by the FTC.

See the reports

Spam call reports about 235 numbers

Complaints by week

Sep 11 – Oct 22, 2026
235, Sep 11 – Oct 22, 202602468Sep 7 (partial): 0 complaints0Sep 73 days2Sep 142Sep 216Sep 288Oct 54Oct 12Oct 19 (partial): 8 complaints8Oct 194 days
Show as table
Week startingComplaints
Sep 7 (3 days)0
Sep 142
Sep 212
Sep 286
Oct 58
Oct 124
Oct 19 (4 days)8

Compared with all codes

Robocalls
63%all codes 75%
Callers with the same code
0%all codes 35%
Rank by complaints
#400of 461 · bottom quarter
FCC complaints, Oct 2025 – Sep 2026
3

What the calls were about

Sep 11 – Oct 22, 2026

SubjectComplaints
Reducing your debt (credit cards, mortgage, student loans)8 27%
Calls pretending to be government, businesses, or family and friends4 13%
Dropped call or no message3 10%
Lotteries, prizes & sweepstakes1 3%
Medical & prescriptions1 3%
Other13 43%

Where the people who complained live

Sep 11 – Oct 22, 2026

StateComplaints
Missouri4 13%
Ohio4 13%
Georgia3 10%
California2 7%
Kansas2 7%

October 2026 (partial) report · most reported

Consumer reports, not verified by the FTC · source

Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).

Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.

Area code 235 location and prefixes

Prefixes assigned5540 in number pools
Exchange areas22Birch Tree holds 18%
Counties13Shannon County, Boone County, Osage County, and others
Largest exchange areas
Exchange (NANPA)PlaceCountyPrefixes
BIRCH TREEBirch TreeShannon County10
CAPEGIRARDCape Girardeauspans 2 counties5
COLUMBIAColumbiaBoone County4
JEFFERSNCYJefferson Cityspans 2 counties3
FARMINGTONFarmingtonSt. Francois County2
ARGYLEArgylespans 2 counties1
CAMDENTONCamdentonCamden County1
CAMPBELLCampbellDunklin County1
CARDWELLCardwellDunklin County1
ELDONEldonMiller County1

Plus 12 smaller exchange areas.

Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).

Nearby area codes

Same area (overlay)

Nearest by exchange location

Other codes in Missouri

NANPA record

Location
Missouri
Assigned by NANPA
May 2, 2022
Local dialing
10 digits (NANPA: 10D)
NANPA planning letters
PL-596

Source: NANPA, NPA database of Oct 24, 2026.

Is 235 running out of numbers?

Forecast exhaust (April 2026)3Q 2063for 235/573 · in about 37 years

Previous forecast (October 2025): 2061, moved later by 2 years.

Forecast exhaust year by edition

23520202040206020802024Oct 20232066Apr 20242070Oct 20242068Apr 20252061Oct 20252063Apr 2026

Source: NANPA NRUF forecast, April 2026 edition.

Who holds 235 prefixes

The five largest of 16 original holders

As listed by NANPA, not today’s carrier.

Holder (as listed)Prefixes
New Cingular Wireless PCS, LLC15 27%
14 25%
Onvoy, LLC10 18%
HD Carrier LLC2 4%
Peerless Network Of Missouri, LLC2 4%

Source: NANPA CO codes of Oct 23, 2026.

Questions about area code 235

What area code is 235?

A Missouri area code, in service since March 24, 2024.

Where is 235 area code, and what time zone is it in?

Birch Tree, MO; Central Time.

Why am I getting spam calls from 235?

27 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).

Will 235 get a new area code?

NANPA forecasts exhaust in 3Q 2063; no relief planning listed.