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Area code

Area code 861 — Peoria, IL

Illinois · in service since February 24, 2023

Area code 861 covers parts of Illinois; the place with the most of its prefixes is Peoria. It is an overlay: 309 serves the same area, so neighbors can have different area codes.

Overlay, same area: 309

Local time in Peoria

Central Time ·

Spam reports from Sep 23 – Oct 22, 2026

Too few reports for a level #447 of 461

1 FTC complaint

Top subject: dropped calls or no message · 1 of 1 robocalls

Consumer reports, not verified by the FTC.

See the reports

Spam call reports about 861 numbers

Complaints by week

Sep 11 – Oct 22, 2026
861, Sep 11 – Oct 22, 202601Sep 7 (partial): 0 complaints0Sep 73 days0Sep 140Sep 210Sep 281Oct 50Oct 12Oct 19 (partial): 0 complaints0Oct 194 days
Show as table
Week startingComplaints
Sep 7 (3 days)0
Sep 140
Sep 210
Sep 280
Oct 51
Oct 120
Oct 19 (4 days)0

Compared with all codes

Robocalls
1 of 1
Callers with the same code
0 of 1
Rank by complaints
#447of 461 · bottom tenth (fewest complaints)
FCC complaints, Oct 2025 – Sep 2026
1

What the calls were about

Sep 11 – Oct 22, 2026

SubjectComplaints
Dropped call or no message1

Where the people who complained live

Fewer than 5 complaints in the archive: not shown.

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 861 location and prefixes

Prefixes assigned228 in number pools
Exchange areas5Peoria holds 18%
Counties3Peoria County, Rock Island County, and McLean County
Largest exchange areas
Exchange (NANPA)PlaceCountyPrefixes
PEORIAPeoriaPeoria County4
DANVERSDanversMcLean County1
MOLINEMolineRock Island County1
PEKINPekinspans 2 counties1
ROCKISLANDRock IslandRock Island County1

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 Illinois

NANPA record

Location
Illinois
Assigned by NANPA
November 19, 2021
Local dialing
10 digits (NANPA: 10D)
NANPA planning letters
PL-577

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

Is 861 running out of numbers?

Forecast exhaust (April 2026)4Q 2102for 309/861 · in about 76 years

Previous forecast (October 2025): 2097, moved later by 5 years.

Forecast exhaust year by edition

86120652080209521102067Oct 20232075Apr 20242082Oct 20242087Apr 20252097Oct 20252102Apr 2026

Source: NANPA NRUF forecast, April 2026 edition.

Who holds 861 prefixes

The five largest of 8 original holders

As listed by NANPA, not today’s carrier.

Holder (as listed)Prefixes
Multiple Ocn Listing9 41%
5 23%
Exiant Communications LLC3 14%
8X8, Inc.1 5%
Ahoi LLC1 5%

Source: NANPA CO codes of Oct 23, 2026.

Questions about area code 861

What area code is 861?

An Illinois area code, in service since February 24, 2023.

Where is 861 area code, and what time zone is it in?

Peoria, IL; Central Time.

Why am I getting spam calls from 861?

1 FTC complaint from Sep 23 – Oct 22, 2026, most often about dropped calls or no message (not verified by the FTC; caller ID can be spoofed).

Will 861 get a new area code?

NANPA forecasts exhaust in 4Q 2102; no relief planning listed.