Area code 920 – Wisconsin
920 has served Wisconsin since 1997, split from 414. All but a handful of its 786 number blocks are allocated (785 of 786), so it is effectively exhausted. No carrier dominates: AT&T 26.8%, Other CLEC / VoIP 17.6%, Verizon 12.5%. It shares its geography with overlay codes 274, so local calls take all ten digits. 676 FTC complaints named a 920 caller ID in the 33 days to 30 October 2026, putting it 144th of 422 codes with five or more complaints.
Who holds 920 number blocks
Share of the 785 assigned NXX blocks (99.9% of the 786 possible), across 65 carriers. This is share of number blocks, not of subscribers.
- AT&T26.8%
- Other CLEC / VoIP15.7%
- Verizon12.5%
- Lumen6.6%
- Charter6.2%
- Frontier5.4%
- T-Mobile5.4%
- Onvoy5.1%
- Brightspeed5.1%
- Windstream2.8%
- TDS2.7%
- American Messaging2%
- Bandwidth1%
- Spok0.8%
- Peerless0.8%
- Dish0.4%
- Twilio0.3%
- Comcast0.3%
- Vonage0.1%
- TPx0.1%
- Telnyx0.1%
Spam complaints naming 920
FTC Do Not Call complaints where the caller ID was a 920 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 920
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 126.
Timeline
- 1997 920 goes into service, split from or overlaid on 414.
More about 920
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 920
What state is area code 920?
Wisconsin. It covers the same area as 274/920.
Can I still get a 920 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 (274/920).
Is a call from 920 a scam?
Not by itself. 920 drew 676 FTC complaints in the 33 days to 30 October 2026, 144th 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 920 numbers?
AT&T holds the largest share of assigned number blocks at 26.8%. 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 920?
Yes – ten digits for local calls in 920, 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.