Choosing DID numbers for a global business
A DID (Direct Inward Dialing) number is simply a phone number that routes straight to your system — your PBX, SIP trunk, Microsoft Teams, or even an AI voice agent. For a business expanding internationally, the numbers you choose shape how customers perceive and reach you.
The four number types
- Local / geographic — tied to a city or area code. They signal a local presence and are what customers in that region expect to dial.
- National — a country-wide number, not tied to one city. Good for a unified brand line.
- Toll-free — free for the caller (US 800/888/877…). Ideal for support and sales where you want to remove friction.
- Mobile — a mobile-format number, important in markets where customers only trust mobile numbers.
How to choose
Start from the customer, not the technology:
- Where are your callers? Give each market a number that looks local to them. A London customer is far more likely to call a +44 20 number than a foreign one.
- Who pays? For inbound support, toll-free removes a barrier. For outbound, a local caller ID lifts answer rates dramatically.
- What capabilities do you need? Not every number supports voice and SMS and fax. Check per-number capabilities before you buy.
Avoid the wholesale trap
Traditionally, getting numbers across many countries meant wholesale contracts, KYC paperwork, minimums and sales calls — weeks of friction. It doesn’t have to be that way. Self-serve platforms like DIDHub list live inventory in 130+ countries with transparent per-number pricing, instant activation, and no contracts. You buy exactly what you need, route it in minutes, and cancel anytime.
The right numbering strategy is invisible to customers — they just see a number that feels local and reachable. That’s the goal.
Not sure which mix of numbers fits your expansion plan? Talk to us — we’ll map coverage to your target markets.