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What is a toll-free number?

Carriers, Devices & Market

Reviewed by , VP of Global Operations, Signalmash · Last reviewed · Editorial standards

Quick answer

A toll-free number is a US telephone number that begins with 800, 888, 877, 866, 855, 844 or 833, where the business that holds the number pays for the call instead of the person dialling it. The seven codes are not interchangeable: 1-800 and 1-888 followed by the same seven digits reach two different subscribers. Toll-free numbers can also be text-enabled, and a verified toll-free number is one of the three sender types US carriers accept for business texting, alongside registered 10DLC local numbers and short codes.

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Which numbers are toll-free

The FCC's consumer guide lists seven toll-free codes. People still say "an 800 number" for all of them, because 800 was the first, but every code below is toll-free.

Code Toll-free? Note
800 Yes The original code, and the one most people mean by "800 number"
888 Yes
877 Yes
866 Yes
855 Yes
844 Yes
833 Yes The most recently opened code; some 833 numbers were assigned by auction

Two things the table implies are worth stating. First, the codes are separate number ranges, so 1-844-555-0100 and 1-877-555-0100 belong to different subscribers. Second, a number that merely starts with 8, such as 801 or 850, is an ordinary area code, not a toll-free one.

Who pays for a toll-free call

The subscriber, meaning the business that holds the number, pays the toll for calls placed to it, which is why a customer can dial a support line from a landline at no charge. The FCC notes one exception: a mobile caller still uses airtime minutes on the call unless the plan is unlimited. The same logic runs the other way for texting: when a toll-free number is text-enabled, the customer's message is a normal text on their plan and the business pays for the reply.

How toll-free numbers are assigned

Toll-free numbering is regulated by the FCC under 47 CFR Part 52, Subpart D, and most numbers are assigned first come, first served. A business does not deal with the FCC directly. It chooses a Responsible Organization, a RespOrg, which reserves numbers on its behalf in the toll-free database administered by Somos and manages the number's routing records. Many RespOrgs are also telecom providers, so in practice the number arrives with the service. The FCC requires toll-free numbers to be portable, so a business can move its number to a new RespOrg when it changes providers, and it prohibits RespOrgs from warehousing numbers and subscribers from hoarding or reselling them. A vanity number, 1-800-FLOWERS for instance, is an ordinary toll-free number whose digits spell a word.

Can a toll-free number send and receive text messages?

Yes, once it is text-enabled and verified. Toll-free texting sends SMS and MMS from the same 8XX number customers already call, which is why it suits support desks and national brands that want one number for both. Instead of 10DLC brand and campaign registration, a toll-free number goes through toll-free verification: the business, its use case, sample messages and opt-in evidence are submitted to the toll-free messaging aggregator, and once approved the number carries application-to-person traffic. Verification is not optional in practice, because unverified toll-free traffic is filtered or blocked on US networks. Verified toll-free numbers offer higher default throughput than an entry-level 10DLC number and one nationwide identity, at the cost of reading as a national company rather than a local one.

Toll-free, 10DLC or short code

Toll-free 10DLC local number Short code
Digits 10, starting 8XX 10, with a local area code 5 or 6
Approval Toll-free verification Brand and campaign registration with The Campaign Registry Carrier provisioning and review
Reads as A national company A local business A brand or campaign
Voice calls Yes, free to the caller Yes No
Typical fit Support lines, national alerts, one number for calls and texts Local businesses, conversational two-way texting Very high volume
Number rental on SimplyRCS $0.50 a month $0.50 a month $500 a month

What is a short code? and what is 10DLC? cover the other two, and the 10DLC vs toll-free vs short codes guide walks through choosing between them. Whichever sender type you pick, the per-message rate on SimplyRCS is the same, $0.0039 for SMS and $0.0150 for MMS, with the carriers' own surcharges passed through at cost; see the pricing page.

Toll-free numbers and RCS

RCS is not sent from a phone number at all. It comes from a verified RCS agent, which carries the brand's name, logo and checkmark. A toll-free number's job in an RCS programme is the layer underneath: the SMS fallback for phones that cannot receive RCS, and the two-way line customers can call. SimplyRCS runs both from one company profile, so the toll-free verification and the RCS agent approval are filed together rather than in separate portals; the channels page shows how the sender types sit side by side.

Key facts
  • Toll-free codes are 800, 888, 877, 866, 855, 844 and 833; they are not interchangeable with one another.
  • The business holding the number pays for calls to it; mobile callers still use plan minutes.
  • Numbers are reserved through a RespOrg in the database Somos administers, under FCC rules that make them portable and prohibit hoarding.
  • A text-enabled toll-free number needs toll-free verification before US carriers will deliver its business traffic.
  • Toll-free is one of three US business-texting sender types with 10DLC and short codes; on SimplyRCS a toll-free number rents for $0.50 a month.
  • In an RCS programme the toll-free number carries the SMS fallback and voice, while RCS itself comes from the verified agent.

Frequently asked

Is 844 a toll-free number?

Yes. 844 is one of the seven toll-free codes the FCC lists, with 800, 888, 877, 866, 855 and 833. Calls to an 844 number are paid for by the business that holds it, and the code is a separate range from the other six, so an 844 number and an 800 number with the same seven digits reach different subscribers.

Are 877 and 888 numbers toll-free?

Yes, both. 888 was the second toll-free code opened after 800 and 877 the third; 866, 855, 844 and 833 followed. All seven codes work the same way, and none of them is interchangeable with another.

Is a toll-free call free from a cell phone?

There is no toll, because the business pays it, but the FCC notes that a mobile caller still uses airtime minutes on the call unless the plan includes unlimited calling. From a landline the call is free to the caller.

Can you text a toll-free number?

Yes, if the number is text-enabled. Businesses text-enable their toll-free numbers so customers can message the same number they call, and the business’s outbound texts go through toll-free verification so US carriers deliver them. If a toll-free number has not been text-enabled, a text to it is simply not delivered.

Can I keep my toll-free number when I change providers?

Yes. The FCC requires toll-free numbers to be portable, so the number moves to your new provider’s RespOrg rather than staying with the old one. If the number carries business texting, expect to submit toll-free verification again under the new provider before its outbound traffic is delivered.

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