What Is CNAM and How to Register Your Business Name

By Sparkforge Support Team ·Last reviewed May 3, 2026

CNAM (Caller Name Presentation) attaches your business name to your phone number on the U.S. public telephone network. Register or update CNAM from the Trust Center. An EIN is required.

CNAM (Caller Name Presentation) is the U.S. telephone network feature that ties your phone number to a business or personal name. When you place an outgoing call, that name may show up on the recipient's caller ID, depending on the carrier.

Why CNAM Matters

Builds trust with the people you're calling.
Increases the chance your call gets answered.
Doesn't remove existing nuisance labels.
Display isn't guaranteed — some recipient carriers don't show CNAM data.

Requirements

An EIN (Employer Identification Number) is required for CNAM registration.
Sole proprietors with an EIN qualify, just like larger businesses.

How to Register or Update CNAM

You can manage CNAM directly from the Trust Center. You don't need to contact your carrier.

Go to your sub-account Settings → Phone Numbers → Trust Center.
Click CNAM (voice).
Start the registration and submit your details.

Benefits at a Glance

Feature	What It Does	Benefit
CNAM	Displays your business name on outgoing calls.	Improves recognition and trust, leading to higher answer rates.

Any entity with a business registration number, including sole proprietors with an EIN, can sign up for CNAM. The EIN itself is mandatory.

Pair CNAM With SHAKEN/STIR

CNAM doesn't replace SHAKEN/STIR. Use both: SHAKEN/STIR authenticates the caller ID, and CNAM displays the business name. Together they give recipients a full picture of who's calling.

Frequently Asked Questions

Do I need an EIN to register CNAM?

Yes. An EIN is mandatory for CNAM registration. Sole proprietors and larger businesses can both register if they have one.

Is the business name guaranteed to display?

No. CNAM display depends on the recipient's carrier. Some carriers don't show CNAM data, so the name may not appear on every call.

Where do I manage CNAM in Sparkforge?

Go to Settings → Phone Numbers → Trust Center inside your sub-account, then click CNAM (voice) to start or update your registration.

Does CNAM remove the spam label?

No. CNAM displays your business name but doesn't clear existing nuisance labels. Pair CNAM with SHAKEN/STIR to address authenticity and identity together.

Do I have to go through my carrier?

No. You manage CNAM directly from the Trust Center inside Sparkforge.