Why Is My New CallHippo Number Showing as “Suspected Spam”?

If you’ve noticed that your new CallHippo number is being labeled as “Suspected Spam” when you make calls, you’re not alone. This is a common situation that many users experience with VoIP numbers. While it may be frustrating, it’s important to understand how the labeling system works and what steps you can take to resolve it.

Why Are Calls Marked as “Suspected Spam”?

When your CallHippo number is flagged as “Suspected Spam”, it’s typically not something directly related to how the number is being used. Many mobile phone manufacturers and third-party apps employ spam detection systems to help protect users from unwanted calls. These systems often flag new or unregistered numbers, which can include VoIP numbers like yours, as potential spam.

Here’s a look at how this process works:

  • Phone manufacturers such as Samsung, OnePlus, and Xiaomi have built-in spam detection systems that automatically flag unfamiliar numbers.

  • Telecom providers like AT&T, Verizon, and Vodafone work with third-party analytics to flag calls from numbers that are not yet recognized.

  • Apps like Truecaller are widely used to identify incoming calls and may mark unfamiliar numbers as “Suspected Spam” to protect users from robocalls and telemarketing.

  • Call patterns such as short, repeated calls, high volume in a short time frame, or inconsistent caller ID usage can trigger these labels.

It’s worth noting that Truecaller has recently updated its system to label all unregistered numbers as “Suspected Spam” by default, a change designed to promote its premium services. This means that your number, even if it’s completely legitimate, may be flagged simply because it’s new or hasn’t been registered with these services.


Additional information:

In today’s evolving telecom environment, maintaining a trustworthy caller identity is more important than ever. While "suspected spam" labels can occasionally appear — not just for CallHippo users but for all cloud-based and VoIP services — there are several effective ways to reduce this and ensure your calls are received with confidence.

These labels are typically influenced by mobile carriers, third-party spam databases, or the past usage history of recycled numbers. Patterns such as frequent short calls or reaching out to recipients who don’t recognize the caller can sometimes contribute to these flags.

The good news is that, although no universal authority governs spam labeling, you can take proactive steps to minimize the risk. Registering your number with key reputation services, maintaining consistent and professional call behavior, and encouraging your contacts to save your number under your business name can all help reinforce your credibility and improve call answer rates.

How to Resolve the “Suspected Spam” Label

The good news is that there are several steps you can take to help resolve the situation:

1. Register with the FCC Free Caller Registry (For US Numbers Only)

If your CallHippo number is based in the United States, you can register it with the FCC’s Free Caller Registry. This registry helps major US wireless carriers and analytics companies recognize your number as legitimate, which can help remove incorrect spam labels.

You can register at:
 https://www.freecallerregistry.com/fcr/

This solution is specifically for US numbers.

2. Register or Unlist Your Number on Truecaller (Applies Globally)

Since Truecaller is widely used worldwide, it plays a significant role in how your number is perceived. You can either:

  • Register your number with Truecaller to update your details and avoid being flagged as spam.

  • Unlist your number from Truecaller’s database if you prefer to have it removed entirely.

Here’s the link to manage your number:
 https://www.truecaller.com/unlisting

After making these updates, you can test by placing a few calls to check if the spam label is still applied.

3. Ask Your Team and Clients to Save Your Number

One simple and effective way to improve how your number is recognized is to have your team members, clients, and business partners save your CallHippo number in their contacts, labeled with your business name.

When more people save your number with the proper business name, third-party apps — especially crowd-based systems like Truecaller — are more likely to recognize your number as legitimate, reducing the chance of it being flagged as “Suspected Spam.”

It’s normal for newly issued VoIP numbers to be flagged as “Suspected Spam.” These labels are part of automatic detection systems used by third-party apps and mobile devices to protect users. While it can take some time for these systems to update, the steps we’ve outlined should help you get your number recognized as legitimate.

4. Follow Smart Calling Practices

Avoid calling in a way that mimics spam behavior. Here are a few tips:

  • Keep your call volume and frequency reasonable, especially with new numbers.

  • Use consistent caller ID names across all your calls.

  • Avoid short, repeated calls that can be seen as red flags.

  • Record a business-specific voicemail greeting so recipients know who’s calling.

5. Explore CallHippo's Additional Features

To further enhance your experience and reduce the likelihood of calls being marked as spam, you might consider two of CallHippo’s additional features:

  • Auto Rotate: This feature automatically rotates the numbers you use for outgoing calls. By changing the number from which your calls are made, it helps reduce the chances of a number being flagged as spam. For more information on how to use this feature, refer to the Auto Rotate article in our help center.

  • Spam Watch: CallHippo also offers an add-on called Spam Watch, which provides real-time monitoring of your numbers to alert you if they are flagged by third-party apps or systems. This can be a useful tool for staying ahead of any potential spam labeling. For more details, refer to the Spam Watch article.

You can search for articles on these features using the respective keywords to learn more about how they can help you manage and protect your numbers.

If you’ve followed these steps and the issue persists, don’t hesitate to reach out to our support team. We’re here to help and guide you through any additional solutions.


Frequently asked questions:


Q: Why does my new CallHippo number show as “Suspected Spam” when I call someone?
A: This usually happens because mobile devices, carriers, and third-party apps like Truecaller flag unfamiliar or new VoIP numbers as spam. It’s a common issue and doesn’t necessarily reflect how your number is being used.

Q: Could our sales calls offering free promotions cause our number to be blocked or flagged as spam?
A: Yes, calls that resemble spam patterns—such as high frequency, short duration, or promotional language—can trigger spam filters, even if the calls are legitimate.

Q: A lead told us our number appeared as spam when we called. Why would this happen?
A: New, unregistered, or recycled numbers are often flagged by mobile carriers or third-party apps as a precaution, especially if the recipient doesn’t recognize the number.

Q: We registered our number, but it's still showing as likely spam. What should we do?
A: Spam label removal can take time. Continue to follow best practices, such as using consistent caller ID, avoiding spam-like call patterns, and using tools like Spam Watch or Auto Rotate to manage your number reputation.

Q: Both our US numbers were marked as spam from the start and haven't improved. What else can we try?
A: Register your numbers with the FCC Free Caller Registry and Truecaller, avoid spam-like call behavior, and use CallHippo tools like Auto Rotate. If the issue persists, contact our support team.

Q: Clients say our number appears as spam even though online tools show it's clean. Why?
A: Apps like Truecaller use crowd-sourced data, so your number may still appear as spam to some users. Ask your teammates to save your number to help improve its recognition.


Let us know how it goes, and feel free to reach out if you need further assistance.