| Your number today | Route | What to know |
|---|---|---|
| In your Twilio account | Import it | The shortest path |
| On a SIP trunk from Twilio, Vonage or Telnyx | Connect the trunk | You keep the caller ID you already have |
| With another phone company | Forward it to a Loop Voice number for inbound calls, or port it to Twilio and import it | Porting makes Twilio the number's carrier and takes paperwork |
| You don't have one yet | Buy a number in Loop Voice | 90+ countries, no Twilio account |
| You call shoppers across many US area codes | The Super Number | Each outbound call shows a number matching the customer's area code |
A SIP trunk suits a store whose phone system already runs on one; Twilio describes its Elastic SIP Trunking as connectivity for IP-based phone systems to reach the public phone network over an internet connection (Twilio SIP trunking docs). The Super Number is included on the Scale plan (pricing).
