Discovering the truth about a phone number, email, or address history can be eye-opening, please use this tool with caution.USA Area code 251 - Mobile, AL
Area code 251 is a North American Numbering Plan telephone area code serving Telephone area code for southwest Alabama in Alabama. It was activated in 2001 and today covers roughly 451,180 residents across 46 cities and towns, primarily in Baldwin County .
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Who called me from area code 251?
A call from area code 251 most likely originates from Mobile or elsewhere in Alabama - but caller ID spoofing means the area code alone cannot confirm who called. Right now, 25 251 numbers carry scam reports on this page. The only reliable way to identify the caller is to check the full 10-digit number:
- Run the number through the reverse phone lookup at the top of this page to see the owner's name, carrier, and location.
- Compare it against the recently reported scam numbers in 251 below.
- If the call was unwanted, report it to the FTC and use the report form on this page so other 251 residents see it.
Report a scam call from 251 Help other 251-area residents - takes 20 seconds, no signup
Reports are reviewed by our team before appearing on the page. The highest-reported numbers get added to the “Recently reported scam numbers” list above with a “community” badge.
Should I answer a call from a 251 number? Take the 30-second quiz - 5 questions, verdict + advice
Runs entirely in your browser - nothing is sent or stored.
Next step: run a reverse-phone lookup on the number to see everything public about it.
Where is the 251 area code? Coverage map
The pin marks Mobile, the largest city served by area code 251. Zoom and pan to explore the coverage region.
Interactive map. Click a pin for city details. Data © OpenStreetMap contributors.
Cities in the 251 area code
Area code 251 serves the following 46 communities across 2 counties:
Area codes near 251 (overlay + neighboring)
If a caller ID shows one of these codes, the call is probably still from the Mobile area or a nearby region. Click any code to see its own page.
251 area code robocall complaints (FCC data)
Monthly count of FCC complaints tagged to numbers in area code 251 over the last 12 months.
93 complaints in the last 12 months. That's about 40% more robocall complaints per capita than the US average - 21 per 100,000 residents vs a national average of 14.7.
Source: FCC Consumer Complaint Data (dataset vakf-fz8e). Data as of August 9, 2026. Refreshed monthly.
How 251 area code spam calls arrive
Based on 93 FCC complaints in the last 12 months, here's how 251 spam calls reached recipients:
FCC Consumer Complaint Data, last 12 months as of August 9, 2026. Refreshed monthly. Note: the FCC dataset labels method (Live Voice / Prerecorded / SMS) but does not classify scam type (IRS impersonation, tech support fraud, etc.) - those come from community reports.
Recently reported scam numbers in 251
Numbers reported to the FCC or by our community in the last 12 months. Click any to run a full reverse-phone lookup.
Source: FCC Consumer Complaint Data, last 12 months as of August 9, 2026. Refreshed monthly. Numbers submitted via the report form near the top of this page get added here with a “community” badge after moderation.
How to block 251 spam calls (by carrier)
Getting repeated spam calls from 251 numbers around Mobile, Alabama? You can't legitimately block every 251 call without also missing legitimate ones from Mobile, Alabama - so the practical fix is to turn on your carrier's free spam filter and register on the national do-not-call list. Step-by-step for each major US carrier below.
AT&T
- Download the free AT&T ActiveArmor app (iOS + Android).
- Sign in with your wireless number.
- Enable Fraud Blocking and Suspected Spam Warning.
- To block a specific number, tap the call in your history → Block.
Verizon
- Download the free Verizon Call Filter app (iOS + Android).
- Sign in with your Verizon account.
- Turn on Spam Filter.
- To block a specific number: My Verizon → Blocks → Add Number.
T-Mobile
- Download the free Scam Shield app (iOS + Android).
- Enable Scam Block (blocks known scam calls silently).
- Use Scam ID to see “Scam Likely” caller ID on suspicious numbers.
- To block a specific number, dial
#662#from your device.
All carriers
- Register on the FTC's National Do-Not-Call list.
- Report unwanted calls to the FCC at fcc.gov/complaints.
- On iPhone: Settings → Phone → Silence Unknown Callers.
- On Android: Phone app → ⋮ → Settings → Caller ID & spam.
Sources: carrier support pages (AT&T, Verizon, T-Mobile), FCC consumer guides. Free features as of 2026. Every one of these steps costs nothing.
History of the 251 area code
Area code 251 is a telephone area code in the North American Numbering Plan (NANP) for southwestern Alabama, serving Mobile, Baldwin, and Washington counties and parts of six other counties. It was created on June 18, 2001, as a split of numbering plan area 334. In order to allow people time to reprogram electronics such as computers, cell phones, pagers and fax machines, use of the 334 area code continued in the 251 areas through January 7, 2002.
251 area code FAQ: common questions
What area code is 251?
Area code 251 is a North American Numbering Plan area code that serves Telephone area code for southwest Alabama in Alabama, primarily including Mobile and surrounding communities. It was activated in 2001.
Where does area code 251 cover?
Area code 251 covers Baldwin County, Washington County, including cities such as Atmore, Axis, Bay Minette, Bon Secour, Brewton, and roughly 41 other communities.
Is 251 a real area code or a scam?
251 is a real, actively-assigned US area code - not itself a scam. However, spammers do use 251 numbers because the code is well-known and appears local to millions of residents. Always verify the specific number, not the area code.
How do I block 251 spam calls?
You cannot legitimately block an entire area code without also blocking legitimate calls from Mobile. Better options: register on the National Do-Not-Call list, enable your carrier's spam-filter (all major US carriers now offer this free), and report unwanted calls to the FCC at fcc.gov/complaints so they show up in the trend data on this page.
What's the overlay area code for 251?
251 does not currently have an overlay area code assigned. New numbers in the region are still issued with the 251 prefix.
Sources
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