Area code 336 – North Carolina
336 has served North Carolina since 1997, split from 910. All but a handful of its 786 number blocks are allocated (783 of 786), so it is effectively exhausted. No carrier dominates: AT&T 29.0%, Other CLEC / VoIP 21.2%, Verizon 12.8%. It shares its geography with overlay codes 743, so local calls take all ten digits. 906 FTC complaints named a 336 caller ID in the 33 days to 30 October 2026, putting it 61st of 422 codes with five or more complaints.
- State
- North Carolina
- In service since
- 1997
- Time zone
- Eastern
- Shares area with
- 743
Who holds 336 number blocks
Share of the 783 assigned NXX blocks (99.6% of the 786 possible), across 49 carriers. This is share of number blocks, not of subscribers.
- AT&T29%
- Other CLEC / VoIP13.7%
- Verizon12.8%
- T-Mobile9.2%
- Windstream8.9%
- Brightspeed8.3%
- Lumen6.5%
- Charter4.2%
- Onvoy3.3%
- Bandwidth1.9%
- Spok1%
- Frontier0.4%
- Peerless0.3%
- Telnyx0.3%
- Vonage0.3%
Spam complaints naming 336
FTC Do Not Call complaints where the caller ID was a 336 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 336
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 88.
Timeline
- 1997 336 goes into service, split from or overlaid on 910.
More about 336
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 336
What state is area code 336?
North Carolina. It covers the same area as 336/743.
Can I still get a 336 number?
Only from recycled stock. 783 of the 786 available blocks are already allocated, so new numbers in the area normally come from the overlay codes (336/743).
Is a call from 336 a scam?
Not by itself. 336 drew 906 FTC complaints in the 33 days to 30 October 2026, 61st 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 336 numbers?
AT&T holds the largest share of assigned number blocks at 29.0%. The rest is spread across 3 other carriers. 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 336?
Yes – ten digits for local calls in 336, 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.