Where does the 34804 text message come from?

34804 is Sanofi US’s official short code for their COACH diabetes management program.

It’s used for medication reminders, health tips, and patient support messages.

The code itself is legitimate—but if you didn’t sign up for diabetes-related alerts, you’re likely getting these texts because someone mistyped their number during enrollment or because your phone number was previously owned by someone in the program.

Don’t share any codes or click links if you weren’t expecting this message.

Who owns the short code 34804?

  • Registered to Sanofi U.S. (COACH program)
  • Industry: Healthcare and pharmaceuticals
  • Focus: Diabetes management and patient support
  • SMS gateway provider: Aerialink Messenger
  • Particularly active in Puerto Rico.

Sanofi’s official Mobile Terms of Use confirms that anyone who opts into COACH agrees to receive pre-written messages via short code 34804. 

The technical delivery is handled through Aerialink Messenger—an SMS gateway provider. That’s why some directory listings show Aerialink as the registered operator, even though Sanofi owns and controls the program content.

If you’re searching for “34804” and expecting information about Monroe Shocks (a Ford Explorer part number)—you’re looking for automotive parts, not a text messaging service. Easy mix-up since both use the same number sequence.

Why you got a text from 34804

  • Diabetes management alerts—educational messages about blood sugar control, lifestyle tips, and general health guidance.
  • Medication adherence reminders—scheduled nudges to take diabetes medications or refill prescriptions.
  • Patient support communications—enrollment confirmations, program updates, and additional COACH resources.
  • Opt-out and help commands—standard SMS controls like HELP or STOP.

These aren’t emergency alerts. They’re supportive guidance from Sanofi’s patient education team, designed to help people managing diabetes stay on track with their treatment. Your carrier’s standard message and data rates apply.

Is the 34804 short code safe or a scam?

Threat level: LOW

  • Enrolled in COACH yourself → safe, exactly what you signed up for.
  • Inherited a recycled phone number → harmless, just text STOP to 34804.
  • Someone mistyped their number during enrollment → harmless, opt out and move on.
  • Message asks for passwords, SSN, or banking details → scam, not from Sanofi.

The short code is legitimate, with no significant scam activity reported. 

The main confusion comes from people receiving messages when they never signed up—which almost always traces back to number reassignment or a simple enrollment typo. 

Neither scenario means your identity has been stolen.

Understanding what’s happening: 3 scenarios

1. You enrolled in Sanofi’s COACH program (safe)

If you or a family member signed up for diabetes management support through Sanofi, these messages are exactly what you requested. They’re part of the legitimate patient education service you opted into.

2. You inherited an enrolled phone number (harmless)

Phone companies recycle numbers after accounts close. If the previous owner of your number was enrolled in COACH, you’ll keep getting their diabetes alerts until you opt out. Annoying—but not dangerous. Text STOP to 34804 to end the messages.

3. Someone made a typo during enrollment (harmless)

Another person might have accidentally entered your number instead of theirs when signing up for COACH. Not a scam—just an honest mistake you can fix by opting out.

How to spot a fake message from 34804

While 34804 itself is legitimate, scammers sometimes spoof trusted short codes to make phishing attempts look real. Here’s what to watch for:

Red flags that signal a scam:

  • The message asks for your Social Security number, banking details, or account passwords—Sanofi will never request this via text.
  • You’re told to click a link to a website that doesn’t end in .sanofi.com or another official Sanofi domain.
  • The text uses urgent language like “Account Locked” or “Prize Winner”—patient support programs don’t send these types of messages.
  • There are obvious spelling errors or grammatical mistakes that wouldn’t appear in messages from a major pharmaceutical company.

Legitimate pharmaceutical patient support programs like COACH send educational content and reminders. They don’t ask you to verify sensitive information through text. If a message from 34804 requests anything beyond basic program interaction (HELP, STOP), treat it with suspicion.

What to do if you received an unexpected message

If you have diabetes and might have signed up:

  1. Text HELP to 34804 to confirm it’s the COACH program.
  2. Review the message content—does it match diabetes management education?
  3. Call Sanofi’s official customer support at (844) 626-2245 to verify your enrollment.
  4. Check your spam folder for any enrollment confirmations you might have missed.

If you don’t have diabetes and definitely didn’t sign up:

  1. Don’t click any links or respond to questions in the message.
  2. Text STOP, END, QUIT, or CANCEL to 34804 to opt out immediately.
  3. If messages continue after opting out, forward them to 7726 (SPAM) to report them to your carrier.
  4. Consider calling (844) 626-2245 to confirm your number is removed from their system.

Official guidance and reporting

If you’re unsure whether a message from 34804 is legitimate, Sanofi encourages you to contact them directly at (844) 626-2245. 

Their customer support team can verify whether your number is enrolled in COACH and help you manage your messaging preferences.

For messages that seem like phishing attempts using the 34804 number, forward them to 7726 (which spells SPAM on most phones). Your carrier can investigate and take action against fraudulent senders. 

You can also file a complaint with the FTC if a message requests payment or personal information.

FAQ

Why am I getting a text about a verification code from 34804?

Someone likely mistyped their phone number during COACH program enrollment—they meant to enter their own number but accidentally put yours. This happens frequently with patient support programs where people enter contact information manually. Never share verification codes from any source, even if the text looks legitimate. Text STOP to 34804 and ignore the message.

How do I verify a short code sender?

Businesses use 5–6 digit short codes for high-volume, trusted communications. You can check the sender’s official website—for example, Sanofi’s Mobile Terms of Use explicitly confirms they use 34804 for COACH. When in doubt, contact the company directly through a phone number you find on their official website—not one provided in the text message.

Is this a spam text message?

Messages from 34804 are not spam in the traditional sense—they’re legitimate communications from Sanofi’s diabetes patient support program. But if you’re receiving them without signing up, they feel like spam because they’re unsolicited. The good news: you can stop them immediately by texting STOP to 34804. Actual spam would ignore your opt-out request and keep sending messages, whereas COACH will remove you from their list within 24–48 hours of receiving your STOP command.

What is the short code 34648?

The short code 34648 belongs to a completely different company—Harbor Freight Tools—and is used for their marketing promotions and customer communications. If you’re seeing 34648 instead of 34804, you’re getting messages from a hardware retailer, not a pharmaceutical company. Check the exact digits in the sender field before taking any action.

Can I be charged for these texts?

Sanofi won’t charge you for receiving messages from 34804, but your mobile carrier’s standard message and data rates apply. If you have a limited texting plan (uncommon these days), each message counts toward your monthly allowance. Most modern phone plans include unlimited texting, so you likely won’t see any charges.

Who is Aerialink?

Aerialink is the technical gateway provider that facilitates delivery of Sanofi’s COACH messages. They handle the SMS infrastructure—sending and receiving texts on behalf of Sanofi. That’s why some short code directories list Aerialink as the registered operator for 34804. You won’t interact with Aerialink directly; all program-related questions should go to Sanofi’s customer support at (844) 626-2245.

How do I stop getting messages from 34804?

Text STOP, END, QUIT, or CANCEL to 34804, and you’ll be removed from the COACH messaging list within 24–48 hours. You should receive a confirmation message acknowledging your opt-out request. If messages continue after two business days, call Sanofi’s customer support at (844) 626-2245 to manually remove your number. Replying with anything other than these specific commands (like “Who is this?” or “Remove me”) might not trigger the automated opt-out system.

Is 34804 active in Puerto Rico?

Yes. Sanofi’s COACH program operates in Puerto Rico just as it does in the continental United States, providing diabetes management support to enrolled patients. If you’re in Puerto Rico and receiving these messages, the same guidance applies—text HELP for information or STOP to opt out.

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