Area code 506 – New Brunswick
506 has served New Brunswick since 1955. 678 of its 800 number blocks are allocated (85%). Other CLEC / VoIP is the largest holder with 36.4%. It shares its geography with overlay codes 428, so local calls take all ten digits. Spam complaints are comparatively rare: 328 in the 33 days to 30 October 2026, 288th of the 422 codes with five or more complaints. Most of its numbers are in Moncton, Saint John, Fredericton.
- Province
- New Brunswick
- In service since
- 1955
- Time zone
- Atlantic
- Shares area with
- 428
Who holds 506 number blocks
Share of the 678 assigned NXX blocks (84.8% of the 786 possible), across 1 carriers. This is share of number blocks, not of subscribers.
- Other CLEC / VoIP36.4%
Spam complaints naming 506
FTC Do Not Call complaints where the caller ID was a 506 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 506
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 89.
Timeline
- 1955 506 goes into service in New Brunswick.
More about 506
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 506
Where is area code 506?
New Brunswick. It covers the same area as 428/506.
Is a call from 506 a scam?
Not by itself. 506 drew 328 FTC complaints in the 33 days to 30 October 2026, 288th of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number.
Which carrier owns 506 numbers?
Other CLEC / VoIP holds the largest share of assigned number blocks at 36.4%. This is share of number blocks, not of subscribers – people keep their numbers when they switch carriers.
Do I need to dial 10 digits in 506?
Yes – ten digits for local calls in 506, 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.