Area Code 920: Get a Green Bay Phone Number

920 · Green Bay

What is the area code for Green Bay?

The area code for Green Bay, Wisconsin is 920 (no current overlays). The 920 area code is a North American Numbering Plan geographic code assigned in 1995, covering the Eastern Wisconsin region. It serves approximately 900,000 residents on the Central Time (CT) (UTC-6 / UTC-5 DST).

The 920 area code has 784 assigned central-office prefixes (NXX codes, the three digits after the area code) across 126 rate centers, with numbers allocated to roughly 73 carriers.

At 784 of the ~792 usable central-office prefixes, the 920 area code has about 99% of its numbering capacity assigned. See how 920 compares in our NXX prefix allocation analysis across 338 US area codes. (Prefix data: localcallingguide.com / NANPA, 2026.)

Where is area code 920? Location and map area

Area code 920 is located in Wisconsin, the United States. Its coverage area centers on Green Bay and spans the Eastern Wisconsin region. If you received a call from a 920 number, the caller's number was assigned in this area — though with number porting and virtual numbers, the person may be calling from anywhere.

The 920 location sits in Central Time (CT), so local business hours run roughly 9 a.m.–5 p.m. CT. Neighboring Wisconsin area codes include 262, 414, 534.

Cities served by the 920 area code

The 920 area code covers 5 major cities and towns across the Eastern Wisconsin region (WI):

Businesses across Green Bay and surrounding cities use 920 numbers to project local presence and lift call answer rates. Industry studies of local presence dialing consistently report answer-rate gains of 20–40% over toll-free or out-of-area numbers — a caller ID that matches the recipient's region looks familiar and gets picked up.

920 area code time zone and business hours

The 920 area code is in the Central Time (CT) zone (UTC-6 / UTC-5 DST). Standard business hours in 920 run 9 AM to 5 PM CT.

If you're calling into 920 from a different time zone, factor in the offset. For example, an Eastern Time business calling 920 at 9 AM ET reaches Green Bay at 8 AM CT — likely outside standard business hours.

History of the 920 area code

The 920 area code was introduced in 1995 when the North American Numbering Plan was first deployed. It remains a single-coverage area code with no current overlay assignments.

Is the 920 area code safe? Spam and scam calls

920 is a legitimate geographic area code for Green Bay — it is not a scam code or a premium-rate prefix, and a call from a 920 number is most likely a genuine local caller. The risk is not the area code itself but a tactic called neighbor spoofing: scammers fake their caller ID so an unwanted call appears to come from your own area code, because people answer familiar numbers more readily.

If you get an unexpected 920 call, a few signals point to a likely scam — a pre-recorded message, urgent pressure to act now, a demand for payment by gift card or wire transfer, or anyone asking for passwords, Social Security, or account numbers. Let suspicious calls go to voicemail, never share personal information, and report fraud to the FTC at reportfraud.ftc.gov.

The FCC consumer guide on spoofing explains your rights under the Truth in Caller ID Act. A real Green Bay business will leave a clear voicemail and will not pressure you.

US carriers verify caller ID with the STIR/SHAKEN framework, which flags many spoofed numbers as "Spam Likely" before they ring. DialPhone 920 numbers are registered for STIR/SHAKEN attestation, so calls from your business are verified as genuine and reach customers without a false spam label. See the DialPhone guide to VoIP security for more.

Why get a 920 area code number for your business?

Getting a 920 number gives your business three measurable advantages over a toll-free or out-of-area number:

1. Local trust signal. Customers in Green Bay recognize 920 as their home area code. Caller ID matching builds immediate credibility for service businesses, sales outreach, and patient communication.
2. Higher answer rate. Calls from a familiar local area code are answered far more often than unknown or toll-free numbers — industry measurements of local presence dialing put the lift at 20–40%, which matters most for outbound sales, appointment confirmations, and time-sensitive service callbacks.
3. Targeted marketing. Businesses serving Green Bay and the broader Eastern Wisconsin can advertise a local number across print, radio, billboards, and digital channels for higher conversion than a national 800 number.

For businesses in Green Bay and surrounding cities, top industries that benefit from local 920 presence include Professional Services, Healthcare, and Retail. DialPhone's AI receptionist is available for every 920 number — never miss a call, even after standard business hours.

How to get a 920 area code number

Setting up a 920 business number with DialPhone takes under 10 minutes:

1. Sign up for a DialPhone plan. Choose any plan starting at $24/user/month. Free 14-day trial, no credit card required.
2. Search available 920 numbers. Filter the DialPhone number inventory by area code, city, or pattern.
3. Choose your number and configure. Assign your new 920 number to a user or team, set up call routing, voicemail, AI receptionist, and business SMS.
4. Port your existing number (optional). Already have a 920 number? Free number porting in 2 to 5 business days with zero service interruption.

New to local numbers? The complete guide to getting a local phone number covers choosing the right area code, porting an existing line, and avoiding spam flags.

AI receptionist for 920 area code businesses

Every DialPhone 920 number includes optional AI receptionist coverage, available 24/7. The AI handles calls when your team is unavailable — answering common questions, booking appointments, routing urgent callers to on-call staff, and capturing voicemail with full transcription and intent tagging.

For businesses in Green Bay that handle high call volume, run extended hours, or need bilingual support (especially valuable in service areas with diverse customer bases), the AI receptionist reduces voicemail backlog and improves first-call resolution.

All area codes in Wisconsin

Wisconsin has 7 active geographic area codes. The 920 area code is part of the same numbering plan as the codes listed below — calls between them are typically local within the state, depending on the carrier.

Nearby area codes

Related area codes in Wisconsin and the Central Time (CT) region:

• 262 area code — Kenosha, Wisconsin
• 414 area code — Milwaukee, Wisconsin
• 534 area code — Wausau, Wisconsin
• 608 area code — Madison, Wisconsin
• 715 area code — Eau Claire, Wisconsin
• 353 area code — Madison, Wisconsin

All Wisconsin area codes → · Browse all US area codes →

More area codes: ← 919 Raleigh · 924 Rochester →

How this page is verified

DialPhone re-verifies every area code page every 90 days. Area code geography, timezone, and overlay data come from the official North American Numbering Plan Administration (NANPA) database. Pricing reflects the published DialPhone plan tiers — see the pricing page for current details. Number availability varies; check the DialPhone signup flow for live inventory in the 920 region.

What to know before getting a 920 number

• Number availability is finite. Popular Green Bay area codes can be inventory-constrained — request specific vanity patterns early.
• Porting timing varies. Most 920 ports complete in 2-5 business days; complex multi-line legacy contracts can take 7-10.
• HIPAA tier required for healthcare. The Core $24 plan doesn't include a BAA — healthcare users need Advanced ($34) or above.