Area code · Canada
Area code 343 — Ottawa-Hull, ON
Ontario · in service since May 17, 2010
Area code 343 covers parts of Ontario; the place with the most of its prefixes is Ottawa-Hull. It is an overlay: 613, 753 serve the same area, so neighbors can have different area codes.
Local time in Ottawa-Hull
Spam reports from Sep 23 – Oct 22, 2026
Low #358 of 461 codes
151 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneEastern Time
- Local calls10 digits
- Prefixes641 in service
- Runs out~3Q 2034
- Unwanted call?Block & report
Spam call reports about 343 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 18 |
| Sep 14 | 51 |
| Sep 21 | 37 |
| Sep 28 | 49 |
| Oct 5 | 17 |
| Oct 12 | 30 |
| Oct 19 (4 days) | 33 |
Compared with all codes
- Robocalls
- 90%all codes 75%
- Callers with the same code
- 0%all codes 35%
- Rank by complaints
- #358of 461 · bottom quarter
- FCC complaints, Oct 2025 – Sep 2026
- 161 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 145 62% | |
| Calls pretending to be government, businesses, or family and friends | 11 5% | |
| Dropped call or no message | 5 2% | |
| Other | 57 24% | |
| No subject given | 17 7% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| California | 29 12% | |
| Texas | 28 12% | |
| Florida | 18 8% | |
| North Carolina | 16 7% | |
| Tennessee | 16 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 343 location and prefixes
| Exchange (CNAC) | Place | Prefixes |
|---|---|---|
| Ottawa-Gatineau | Ottawa-Gatineau | 104 |
| Kingston | Kingston | 23 |
| Cornwall | Cornwall | 22 |
| Belleville | Belleville | 19 |
| Brockville | Brockville | 17 |
| Bancroft | Bancroft | 13 |
| Kanata-Stittsville | Kanata-Stittsville | 12 |
| Jockvale | Jockvale | 10 |
| Merrickville | Merrickville | 10 |
| Carleton Place | Carleton Place | 9 |
Plus 106 smaller exchange areas.
Source: CNAC, CO code status of Oct 23, 2026.
NANPA record
- Location
- Ontario
- Assigned by NANPA
- September 10, 2008
- Local dialing
- 10 digits (NANPA: 10D)
- NANPA planning letters
- PL-386
Source: NANPA, NPA database of Oct 24, 2026.
Is 343 running out of numbers?
Previous forecast (October 2025): 2036, moved earlier by 2 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 343 prefixes
The five largest of 26 original holders
As listed by CNAC, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Fibernetics Corporation | 92 14% | |
| Telus Integrated Communications | 83 13% | |
| Iristel Inc. | 67 10% | |
| Distributel | 65 10% | |
| TekSavvy Solutions Inc. | 53 8% |
Source: CNAC, CO code status of Oct 23, 2026.
Questions about area code 343
What area code is 343?
An Ontario area code in Canada, in service since May 17, 2010.
Where is 343 area code, and what time zone is it in?
Ottawa-Hull, ON; Eastern Time.
Why am I getting spam calls from 343?
151 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 343 get a new area code?
NANPA forecasts exhaust in 3Q 2034; no relief planning listed.