Area code 428 – New Brunswick
428 has served New Brunswick since 2023, split from 506. It is still largely empty: 22 of 800 number blocks allocated. It shares its geography with overlay codes 506, so local calls take all ten digits. Spam complaints are comparatively rare: 292 in the 33 days to 30 October 2026, 307th of the 422 codes with five or more complaints. Most of its numbers are in Saint John, St. Stephen, Miramichi.
- Province
- New Brunswick
- In service since
- 2023
- Time zone
- Atlantic
- Shares area with
- 506
Spam complaints naming 428
FTC Do Not Call complaints where the caller ID was a 428 number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are frequently spoofed, so these are complaints about the code, not calls proven to originate in it.
Rate centers in 428
NANPA allocates number blocks to rate centers and records their names abbreviated to ten characters, so these are NANPA's codes rather than place names – CHAMPAURBN is Champaign-Urbana, NWYRCYZN01 is a New York City zone. We show them unchanged instead of guessing at the full names. Showing the largest 5 of 15.
Timeline
- 2023 428 goes into service, split from or overlaid on 506.
More about 428
Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.
Frequently asked about 428
Where is area code 428?
New Brunswick. It covers the same area as 428/506.
Is a call from 428 a scam?
Not by itself. 428 drew 292 FTC complaints in the 33 days to 30 October 2026, 307th of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number.
Do I need to dial 10 digits in 428?
Yes – ten digits for local calls in 428, because it shares its area with another code.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 25 daily files 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
NANPA dialing note for this code: “10D”. Reviewed by the data desk. Spotted an error? Request a correction.