Area code 860 – Connecticut
860 has served Connecticut since 1995, split from 203. All but a handful of its 786 number blocks are allocated (783 of 786), so it is effectively exhausted. AT&T is the largest holder with 55.3% of blocks, ahead of Verizon at 15.7%. It shares its geography with overlay codes 959, so local calls take all ten digits. 755 FTC complaints named a 860 caller ID in the 33 days to 30 October 2026, putting it 120th of 422 codes with five or more complaints.
- State
- Connecticut
- In service since
- 1995
- Time zone
- Eastern
- Shares area with
- 959
Who holds 860 number blocks
Share of the 783 assigned NXX blocks (99.6% of the 786 possible), across 22 carriers. This is share of number blocks, not of subscribers.
- AT&T55.3%
- Verizon15.7%
- T-Mobile7.3%
- Windstream6.4%
- Lumen3.6%
- Comcast3.3%
- Onvoy2.2%
- Spok1.5%
- American Messaging1.3%
- Bandwidth1.3%
- Peerless1.1%
- Other CLEC / VoIP0.5%
- Charter0.4%
- Altice0.1%
Spam complaints naming 860
FTC Do Not Call complaints where the caller ID was a 860 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 860
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 58.
Timeline
- 1995 860 goes into service, split from or overlaid on 203.
More about 860
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 860
What state is area code 860?
Connecticut. It covers the same area as 860/959.
Can I still get a 860 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 (860/959).
Is a call from 860 a scam?
Not by itself. 860 drew 755 FTC complaints in the 33 days to 30 October 2026, 120th 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 860 numbers?
AT&T holds the largest share of assigned number blocks at 55.3%. 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 860?
Yes – ten digits for local calls in 860, 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.