Numbers and senders

What is a toll-free number?

A toll-free number is one where the completed call's toll charges are paid by the business that holds the number rather than by the person calling it.

The US runs toll-free numbers through a named administrator, a shared database, and rules about how long a number may sit in each state. None of that machinery is visible from the number itself, which is why holding one works differently from buying an ordinary number.

Who pays, exactly?

The business holding the number, for calls that complete.

The FCC, the US communications regulator, puts the charge on the subscriber and detaches the number from any location. Its rule calls the toll-free administrative database the SMS database, for Service Management System, which has nothing to do with text messaging. 47 CFR 52.101:

Toll Free Number. A telephone number for which the toll charges for completed calls are paid by the toll free subscriber. The toll free subscriber's specific geographic location has no bearing on what toll free number it can obtain from the SMS database.

Two facts sit in that definition. The charge moves to the called party. The number is not tied to where that party is. A business in one state can hold any available toll-free number, which is why these numbers read as national rather than local.

What it does not promise is that reaching you is free from everywhere. The rule covers toll charges on completed calls, not whatever a particular caller's own plan does. It says nothing about calls from outside the country.

Do you own a toll-free number?

No. You hold it through a Responsible Organization, whose record of it lives in a shared database.

The federal rules name the parts. A Responsible Organization, or RespOrg, is the entity a subscriber chooses to manage its records. The Service Management System database is the administrative system for toll-free numbers. RespOrgs enter and amend records in it. It shares those records with the regional databases that route calls. A toll-free subscriber is whoever has been assigned a number.

So the number is administered on your behalf rather than issued to you. Changing which provider routes your toll-free traffic is a change of RespOrg on the record, not a port in the sense the term usually carries.

What do the number statuses mean?

They are defined in the rules, and four of them carry a time limit.

StatusWhat it meansIts limit
SpareAvailable for a RespOrg to assignNone
ReservedHeld for an identified subscriber45 days, no extension, unless the number was assigned by competitive bidding
AssignedRouting information entered, pending activationUntil it becomes working, or six months
WorkingLoaded in the routing databases and completing callsNone
SuspendTemporarily disconnected, for numbers in a billing disputeUntil it becomes working, or eight months
DisconnectDiscontinued, with an intercept recording in placeAt least 45 days and at most four months, counted across disconnect and transitional status, with no extension

Reserving a number is a certification, not an option to buy. The rules forbid a RespOrg from holding a number in reserved status without a prospective subscriber requesting it. The act of reserving certifies that an identified subscriber has agreed to be billed. A separate rule caps a reservation at 45 days. Neither applies to a number assigned by competitive bidding, which may stay reserved indefinitely.

Can a toll-free number send texts?

Only after a separate verification. Carrying voice tells you nothing about it.

Messaging on a toll-free number is its own permission with its own review, distinct from the number working for calls. A number can be live for voice and refused for texts.

The review assesses the traffic and the opt-in rather than the number itself. Why a toll-free SMS verification was rejected covers what it turns on.

How do I get one on Bird?

Search inventory with the filters that match the number you want, then order the exact value it returned.

GET /v1/numbers/available requires a country_code and narrows from there with three filters:

  • number_type selects the physical type, toll_free here.
  • prefix matches the leading digits after the country dial code, so country_code=US with prefix=833 returns 833 numbers.
  • capabilities repeats to require several at once, as in capabilities=sms&capabilities=voice.

Order with POST /v1/numbers/orders, sending the exact value the search returned.

The number types guide sets out which capabilities come with which type in a given country, and what is a virtual phone number covers what holding any of them lets you do.

If the number will also send texts, start the messaging verification as a separate step rather than expecting the purchase to cover it.

In short

  1. The defining feature is who pays, not the prefix.

    The FCC defines a toll-free number as one whose toll charges for completed calls are paid by the subscriber holding it.

  2. Geography does not constrain the number.

    The FCC rule states that a subscriber's location has no bearing on which toll-free number it can obtain.

  3. A number moves through statuses before it works.

    Reserved, assigned, suspend and disconnect each carry a time limit in the federal rules. Spare and working do not.

  4. Messaging on a toll-free number is a separate permission.

    Carrying voice says nothing about carrying texts, which needs its own verification.

Put it into practice.

Continue with the documentation, guides and examples for this topic. Resources are in English.

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