Comparison

DID vs virtual numbers (and toll-free and mobile)

In short

In common usage, "DID number" and "virtual number" mean the same thing: a cloud-routed phone number delivered over SIP. Where people draw a line, DID stresses the direct route into a phone system and virtual number stresses the cloud. Toll-free and mobile are number types, not separate categories.

Last reviewed: 8 August 2026 · For business and carrier use

This comparison is written for business and wholesale buyers choosing numbers for phone systems, contact centres, and platforms — not for consumers picking a second-line app. If you are new to the terms, start with what a DID number is and what a virtual phone number is.

On this page

  1. Is there a difference between DID and virtual numbers?
  2. The number types that actually differ
  3. Local · National · Toll-free · Mobile
  4. Which should you buy?
  5. FAQ

Is there a difference between a DID number and a virtual number?

For practical purposes, no. Both describe a public phone number that is provisioned online and delivered to you over SIP (Session Initiation Protocol — the signalling standard for internet calls), then routed by your own system. Some vendors reserve "DID" for the direct route into a PBX (Private Branch Exchange — an organisation's call-switching system) and "virtual number" for cloud forwarding more generally, but the market treats the words as interchangeable, and this ambiguity is itself why the question gets asked.

The distinctions that change what you buy are not between the two words — they are between number types. A number's type determines where it can be published, who can dial it cheaply, and whether it is available at all in a given country.

The number types that actually differ

The same DID / virtual number is available as several types. This is where the real choice sits.

Type What it is Typical use Cost to caller Choose it when
Local Geographic number with a city or region prefix. In-market presence; local sales and support lines. Normal local/standard call rate. You want customers to see a familiar local number.
National Non-geographic number covering a whole country. One countrywide brand line, not tied to a city. Varies by country; often standard national rate. You operate nationally and don't want a city identity.
Toll-free Free-to-caller service number; holder bears the cost. Support and sales lines where free calling lifts response. Free to the caller. You want to remove call cost as a barrier to contact.
Mobile-range Number on a mobile prefix, where regulators allow it. A2P messaging and OTP flows expecting a mobile origin. Depends on the caller's plan. Traffic requires a mobile-format number.

Availability of each type is set per country by the local regulator and carriers — see the coverage table for what's stocked where. (A2P: application-to-person messaging. OTP: one-time passcode.)

Local, national, toll-free and mobile in detail

Local (geographic) numbers

A local number carries the dialling prefix of a specific city or region. To a customer it looks like a neighbour, which tends to lift answer rates for outbound sales and reassures inbound callers. It is the most widely available type across countries, and usually the first choice for establishing presence in a new market.

National (non-geographic) numbers

A national number represents a whole country without pinning you to a city. It suits a single support or sales line that should feel countrywide rather than tied to one location. Availability and calling cost conventions vary by country.

Toll-free numbers

Toll-free numbers are free for the caller — the number holder pays for inbound calls. In markets where the format is well recognised, publishing a toll-free line can increase contact volume for support and sales. The trade-off is that you bear the call cost, so they suit lines where removing the caller's cost is worth it.

Mobile-range numbers

Where regulators permit, mobile-range numbers use a mobile prefix. They matter mostly for A2P (application-to-person) messaging and OTP (one-time passcode) delivery, where the receiving side expects a mobile origin. Mobile ranges are not available in every country.

Which should you buy?

Match the type to how the number will be seen and used, not to the label on the product. Choose local for in-market recognition, national for a single countrywide identity, toll-free when you want to carry the caller's cost to encourage contact, and mobile when messaging or a mobile origin is required. Whether it is called a DID or a virtual number does not change any of this — the type does. When in doubt, start with a local number in your target market and add types as your use cases grow.

Frequently asked questions

Is a DID number different from a virtual number?

In practice they are the same product. "DID" is the engineering term for a number routed directly into a phone system; "virtual number" is the everyday term for any cloud-routed number. The meaningful differences are between number types — local, national, toll-free and mobile — not between the two words.

What is the difference between a local and a national number?

A local number carries a city or region prefix and reads as local to callers in that area. A national number is non-geographic and represents one countrywide identity not tied to a city, which suits a single brand line across a whole country.

Who pays for a toll-free call?

The number holder pays for inbound toll-free calls rather than the caller. Toll-free numbers signal that calling is free to the customer, which can lift response for support and sales lines in markets where they are recognised.

When should I use a mobile-range number?

Use a mobile-range number where regulators permit it and the traffic expects a mobile origin — for example some application-to-person messaging and one-time-password flows. Availability of mobile ranges varies by country.

See what's available in your markets

Temptera stocks local, national, toll-free and mobile numbers across 100+ countries, delivered over SIP with pay-as-you-go pricing and no lock-ins. Live per-country rates appear once you create an account. Check the coverage table, learn how to choose a provider and how to get a number step by step, or read what a DID number is.