display the phone number without any associated name.

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Unlisted or Blocked Numbers: CNAM may not be able to retrieve caller names for unlisted or blocked phone numbers. These numbers are intentionally withheld or restricted, and the associated names are not publicly available in CNAM databases. In such cases, the CNAM feature may only

Number Portability: With australia telegram number portability, users can transfer their phone numbers between different service providers. CNAM databases may not always immediately update to reflect these number transfers. As a result, CNAM may display the name of the previous service provider rather than the current one, leading to potential confusion or outdated information.

Third-Party Databases: CNAM databases are managed by telephone service providers or third-party entities. The accuracy and reliability of these databases can vary, as they rely on regular updates and information sharing. Differences in database quality or inconsistencies among different databases can lead to varying results and occasional inaccuracies in CNAM information.

International Calls: CNAM databases are primarily focused on providing caller information within specific countries or regions. When receiving international calls, especially from countries with different CNAM systems or limited database coverage, the CNAM feature may not be able to retrieve the caller’s name, resulting in the display of only the phone number.

It’s important to be aware of these limitations when relying on CNAM for caller identification. While CNAM can provide helpful information, it’s not always guaranteed to provide accurate or complete caller names in every situation.

How to set CNAM on IDT Express?
Head over to DIDs tab & My DIDs section. Filter on USA, Look for numbers that have a pencil icon next to them. These numbers can be updated directly from the portal.


For phone numbers that don’t have a pencil icon next to them, you can still update CNAM albeit it will have to be handled manually. You can send your requests to your IDT Express AM.
What does the clock icon mean: A clock icon next to a number indicates that the CNAM service request is in progress. Usually, it takes 24 hours for requests to be updated.


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