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Area code · Canada

Area code 905 — Hamilton, ON

Ontario · in service since October 4, 1993

Area code 905 covers parts of Ontario; the place with the most of its prefixes is Hamilton. It is an overlay: 289, 365, 742 serve the same area, so neighbors can have different area codes.

Overlay, same area: 289 365 742

Local time in Hamilton

Eastern Time ·

Spam reports from Sep 23 – Oct 22, 2026

Average #284 of 461 codes

306 FTC complaints

Top subject: debt reduction · 94% robocalls

Consumer reports, not verified by the FTC.

See the reports

Spam call reports about 905 numbers

Complaints by week

Sep 11 – Oct 22, 2026
905, Sep 11 – Oct 22, 20260255075100125Sep 7 (partial): 40 complaints40Sep 73 days113Sep 1484Sep 2174Sep 2844Oct 538Oct 12Oct 19 (partial): 93 complaints93Oct 194 days
Show as table
Week startingComplaints
Sep 7 (3 days)40
Sep 14113
Sep 2184
Sep 2874
Oct 544
Oct 1238
Oct 19 (4 days)93

Compared with all codes

Robocalls
94%all codes 75%
Callers with the same code
0%all codes 35%
Rank by complaints
#284of 461 · middle half
FCC complaints, Oct 2025 – Sep 2026
33

What the calls were about

Sep 11 – Oct 22, 2026

SubjectComplaints
Reducing your debt (credit cards, mortgage, student loans)273 56%
Calls pretending to be government, businesses, or family and friends27 6%
Dropped call or no message4 1%
Warranties & protection plans2 <1%
Computer & technical support1 <1%
Other157 32%

Where the people who complained live

Sep 11 – Oct 22, 2026

StateComplaints
California61 13%
Florida48 10%
Texas43 9%
North Carolina23 5%
Georgia22 5%

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 905 location and prefixes

Prefixes in service7730 available (CNAC)
Exchange areas94Hamilton holds 12%
Largest exchange areas
Exchange (CNAC)PlacePrefixes
HamiltonHamilton95
OshawaOshawa49
St. Catharines-ThoroldSt. Catharines-Thorold49
BramptonBrampton48
CooksvilleCooksville48
OakvilleOakville34
StreetsvilleStreetsville34
ThornhillThornhill28
UnionvilleUnionville28
MaltonMalton26

Plus 84 smaller exchange areas.

Source: CNAC, CO code status of Oct 23, 2026.

Nearby area codes

Same area (overlay)

Other codes in Ontario

NANPA record

Location
Ontario
Assigned by NANPA
October 1, 1992
Created from
416
Local dialing
10 digits (NANPA: 10D)
NANPA planning letters
PL-448, PL-420, PL-243

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

Is 905 running out of numbers?

Forecast exhaust (April 2026)1Q 2030for 289/365/742/905 · in about 4 years

Previous forecast (October 2025): 2030, the same year.

Forecast exhaust year by edition

90520252030203520402036Oct 20232028Apr 20242028Oct 20242029Apr 20252030Oct 20252030Apr 2026

Source: NANPA NRUF forecast, April 2026 edition.

Who holds 905 prefixes

The five largest of 12 original holders

As listed by CNAC, not today’s carrier.

Holder (as listed)Prefixes
Bell Canada438 57%
Rogers Communications Canada Inc. (Cable)125 16%
Bell Mobility49 6%
Telus Mobility48 6%
Rogers Communications Canada Inc. (Wireless)36 5%

Source: CNAC, CO code status of Oct 23, 2026.

Questions about area code 905

What area code is 905?

An Ontario area code in Canada, in service since October 4, 1993.

Where is 905 area code, and what time zone is it in?

Hamilton, ON; Eastern Time.

Why am I getting spam calls from 905?

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

Will 905 get a new area code?

NANPA forecasts exhaust in 1Q 2030; no relief planning listed.