CNAM (Caller Name) is the business name that may appear on a recipient’s device when you place an outbound call to a US phone number. This article explains how CNAM works, what affects its display, and what is required to enable it in DialLink.
What is CNAM?
CNAM (Caller Name) is a caller ID feature used by US carriers. It allows a business name to be displayed alongside a phone number during outbound calls.
CNAM display depends on carrier databases and recipients’ devices, so it may vary across carriers and devices.
Important:
CNAM display is not guaranteed on every call
Different carriers may display CNAM differently
Some devices or apps may not display CNAM at all
When is CNAM displayed?
CNAM may be displayed when:
You place an outbound call from a US phone number with a completed company profile registration.
The recipient’s carrier supports CNAM lookup.
Even when these conditions are met, the final display depends on the receiving carrier.
How to register CNAM for your phone number
To enable CNAM, you need to provide verified business information by registering your company profile in DialLink.
For step-by-step instructions, refer to the Company profile registration article.
Why CNAM requires US carrier registration
Without registration, CNAM cannot be enabled for US phone numbers.
US carrier registration helps:
Verify your business identity
Reduce spam and spoofing
Associate your phone numbers with a legitimate sender
FAQ
Is CNAM guaranteed after registration?
No. Successful registration:
allows CNAM to be enabled,
makes your business name eligible for carrier lookup.
However, carriers decide whether to display CNAM. CNAM databases may update at different speeds. Also, some carriers prioritize other spam detection signals.
Important. CNAM display is determined by the receiving carrier. DialLink can’t guarantee that CNAM will appear on every outbound call.
What name is shown for CNAM?
The caller's name is derived from the information provided during US carrier registration (A2P 10DLC registration). Carriers may reject or ignore CNAM values that appear misleading or promotional.
How long does CNAM take to appear?
After registration approval, CNAM propagation may take additional time. Updates depend on carrier databases. It is normal for CNAM to appear on some networks before others.
Why doesn't CNAM appear on outbound calls?
CNAM may not display if:
Carrier registration is still pending or rejected.
The receiving carrier does not support CNAM.
The call is flagged as spam.
The recipient uses an app or device that ignores CNAM.