Introduction
If you're looking for reliable and affordable virtual phone numbers for your business, you've come to the right place. At Twiching, we offer top-notch wholesale DID numbers that are customized to meet your specific communication needs. Our virtual phone numbers are ideal for businesses of all sizes and industries, providing seamless integration with your existing communication systems and outstanding call quality.
Why Buy Wholesale DID Numbers From Twiching
- Bulk pricing across local, national, toll-free, and international DIDs in 191 countries.
- Numbers provision in minutes through a self-service portal, with a REST API for bulk operations.
- Native SIP trunking integration — no separate vendor needed to connect numbers to your phone system.
- 24/7 support with a dedicated escalation path for account and porting issues.
A wholesale DID number is a Direct Inward Dialing number purchased in bulk at discounted, volume-tiered rates rather than one at a time at retail pricing. Businesses use them to establish a local presence in any market. A customer in Mexico City sees a local number, even if the call routes to a support team in another country entirely.
Twiching's DID inventory spans local, national, toll-free, and international numbers, provisioned through a self-service portal or REST API. Numbers activate in minutes, not days, and bulk purchases unlock the same volume-tiered pricing regardless of whether you need ten numbers or ten thousand.
Pairing DID Numbers With SIP Trunking
Further reading: Wholesale VoIP
A DID number by itself just gets you an inbound path — SIP trunking is what connects that number to your actual phone system. Twiching's DIDs work natively with our SIP trunks, so there's no separate integration step or third-party trunking provider to coordinate with.
The combination gives you call recording, auto-attendant, and flexible call routing out of the box. It scales the same way whether you're a five-person team or a multi-site enterprise adding numbers as you expand into new markets.
Getting Started
Further reading: Wholesale voice solutions
Create an account, search inventory by country or area code, and add numbers to your order — most activate within minutes of purchase. From there, numbers integrate directly with your existing SIP trunk or phone system, and support is available around the clock if anything needs troubleshooting during setup.
Porting Existing Numbers Into a Wholesale DID Estate
Most businesses buying wholesale DID numbers aren't starting from zero — they're consolidating numbers already in use with a previous carrier. Porting is the standard path for that.
- Submit a Letter of Authorisation naming the numbers to port and confirming account ownership.
- The losing carrier has a regulated window (typically 5–10 business days for US numbers) to release the numbers.
- Inbound routing switches over automatically once the port completes — no changes needed on the caller's side.
- Keep the old account active in parallel until the port confirms, so a rejected or delayed port doesn't cause a service gap.
Porting in small batches rather than all at once limits the impact if any single number hits a rejection or delay during the process.
Conclusion
Wholesale DID numbers give a business local presence anywhere it needs one, at bulk pricing instead of retail rates. Paired with SIP trunking, they connect straight into an existing phone system with no separate integration step — and with Twiching, numbers activate in minutes through a self-service portal or API, backed by 24/7 support.
