Area code 812 – Indiana
812 is one of the original area codes, in service across Indiana since 1947. All but a handful of its 786 number blocks are allocated (785 of 786), so it is effectively exhausted. No carrier dominates: AT&T 30.4%, Other CLEC / VoIP 17.8%, Frontier 17.5%. It shares its geography with overlay codes 930, so local calls take all ten digits. FTC complaints naming a 812 caller ID totalled 463 in the 33 days to 30 October 2026 (222nd of 422 ranked codes). Numbers are spread across 172 rate centers, which is typical of a mostly rural code.
Who holds 812 number blocks
Share of the 785 assigned NXX blocks (99.9% of the 786 possible), across 52 carriers. This is share of number blocks, not of subscribers.
- AT&T30.4%
- Frontier17.5%
- Verizon11.6%
- Other CLEC / VoIP10.1%
- Lumen7.8%
- T-Mobile5.7%
- Windstream5%
- Onvoy3.3%
- Charter3.1%
- Brightspeed1.5%
- Bandwidth1.4%
- Comcast1.4%
- Altafiber0.5%
- Telnyx0.3%
- Spok0.1%
- TPx0.1%
- Twilio0.1%
- Vonage0.1%
Spam complaints naming 812
FTC Do Not Call complaints where the caller ID was a 812 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 812
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 172.
Timeline
- 1947 812 assigned in the original North American Numbering Plan.
More about 812
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 812
What state is area code 812?
Indiana. It covers the same area as 812/930.
Can I still get a 812 number?
Only from recycled stock. 785 of the 786 available blocks are already allocated, so new numbers in the area normally come from the overlay codes (812/930).
Is a call from 812 a scam?
Not by itself. 812 drew 463 FTC complaints in the 33 days to 30 October 2026, 222nd 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 812 numbers?
AT&T holds the largest share of assigned number blocks at 30.4%. 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 812?
Yes – ten digits for local calls in 812, 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.