Area code 864 – South Carolina
864 has served South Carolina since 1995, split from 803. All but a handful of its 786 number blocks are allocated (784 of 786), so it is effectively exhausted. No carrier dominates: AT&T 32.5%, Other CLEC / VoIP 20.7%, Verizon 13.0%. It shares its geography with overlay codes 821, so local calls take all ten digits. FTC complaints naming a 864 caller ID totalled 575 in the 33 days to 30 October 2026 (179th of 422 ranked codes).
- State
- South Carolina
- In service since
- 1995
- Time zone
- Eastern
- Shares area with
- 821
Who holds 864 number blocks
Share of the 784 assigned NXX blocks (99.7% of the 786 possible), across 50 carriers. This is share of number blocks, not of subscribers.
- AT&T32.5%
- Verizon13%
- Windstream10.7%
- Other CLEC / VoIP10.3%
- T-Mobile8.9%
- Onvoy6.1%
- Lumen4.8%
- Charter4.5%
- Bandwidth2.8%
- Brightspeed2%
- Frontier1.4%
- Spok1.3%
- Telnyx0.4%
- Peerless0.4%
- Twilio0.3%
- Dish0.3%
- Vonage0.1%
- Comcast0.1%
Spam complaints naming 864
FTC Do Not Call complaints where the caller ID was a 864 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 864
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 66.
Timeline
- 1995 864 goes into service, split from or overlaid on 803.
More about 864
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 864
What state is area code 864?
South Carolina. It covers the same area as 821/864.
Can I still get a 864 number?
Only from recycled stock. 784 of the 786 available blocks are already allocated, so new numbers in the area normally come from the overlay codes (821/864).
Is a call from 864 a scam?
Not by itself. 864 drew 575 FTC complaints in the 33 days to 30 October 2026, 179th 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 864 numbers?
AT&T holds the largest share of assigned number blocks at 32.5%. 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 864?
Yes – ten digits for local calls in 864, 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.