Area code 937 – Ohio
937 has served Ohio since 1996, split from 513. All but a handful of its 786 number blocks are allocated (781 of 786), so it is effectively exhausted. No carrier dominates: AT&T 31.2%, Other CLEC / VoIP 14.1%, Lumen / CenturyLink 9.9%. It shares its geography with overlay codes 326, so local calls take all ten digits. 678 FTC complaints named a 937 caller ID in the 33 days to 30 October 2026, putting it 141st of 422 codes with five or more complaints.
Who holds 937 number blocks
Share of the 781 assigned NXX blocks (99.4% of the 786 possible), across 48 carriers. This is share of number blocks, not of subscribers.
- AT&T31.2%
- T-Mobile10.6%
- Lumen9.9%
- Verizon9.1%
- Brightspeed7.2%
- Frontier6.8%
- Other CLEC / VoIP4.9%
- Charter4.7%
- Windstream4%
- Onvoy2.6%
- Bandwidth2.2%
- Spok1.9%
- Altafiber1.7%
- American Messaging1%
- Peerless0.9%
- Telnyx0.8%
- Twilio0.4%
- Vonage0.1%
- TPx0.1%
Spam complaints naming 937
FTC Do Not Call complaints where the caller ID was a 937 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 937
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 123.
Timeline
- 1996 937 goes into service, split from or overlaid on 513.
More about 937
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 937
What state is area code 937?
Ohio. It covers the same area as 326/937.
Can I still get a 937 number?
Only from recycled stock. 781 of the 786 available blocks are already allocated, so new numbers in the area normally come from the overlay codes (326/937).
Is a call from 937 a scam?
Not by itself. 937 drew 678 FTC complaints in the 33 days to 30 October 2026, 141st 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 937 numbers?
AT&T holds the largest share of assigned number blocks at 31.2%. 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 937?
Yes – ten digits for local calls in 937, 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.