Inventory guide

Local, toll-free, fixed and DID numbers

Phone numbers are the most traded inventory on DIDDock. Sellers publish country, area code, number type, capabilities and channel count; buyers filter on exactly those fields and pay into escrow, so a number is only paid for once it is delivered and working.

  • Area code and prefix stated on every offer
  • Voice, SMS and fax capabilities listed separately
  • Escrow release only after the number reaches your order page
  • Replacement guarantee windows shown as a badge

Local numbers

Local numbers carry a city or region code and are the usual choice for presence in a market: a support line that looks domestic, a callback number for ads, or a second identity for a service. Because reachability differs by carrier, look at what the seller states about capabilities and channels rather than assuming a local number behaves like a mobile one.

  • Check the area code matches the city you actually need — 646 is not interchangeable with 212
  • Confirm whether inbound SMS is included or voice only
  • Ask for a test call in the order chat when a test is offered

Toll-free numbers

Toll-free ranges (800-style in North America, 0800 and similar elsewhere) are used for support and sales lines where the caller should not pay. They tend to carry stricter carrier rules, and monthly rental plus per-minute inbound cost is common, so read the billing unit on the offer before comparing prices.

  • Compare monthly rental and per-minute inbound separately
  • Confirm the countries the number can be dialled from
  • Ask about concurrent channel limits for campaign traffic

Fixed lines

Fixed-line numbers sit in landline ranges and in several countries require a service address or local presence. Sellers who hold those numbers state activation requirements and whether any KYC documentation is needed. Expect slower delivery than a DID range and a longer contract.

DID ranges

DIDs are sold in blocks and pointed at your own SIP infrastructure. The important fields are range size, channel count, forwarding method and whether the numbers are ported in or native to the seller's carrier. DID offers are usually the fastest to deliver because the seller just assigns the range to your endpoint.

  • Range size and channel count decide real capacity
  • Native ranges usually survive carrier audits better than ported ones
  • Check the forwarding method matches your PBX or softswitch

How buying works here

Place an order from the offer page and fund it in crypto. The amount is held by the platform, not the seller. Number details and credentials unlock in your order page on delivery, you confirm, and only then does the seller get paid. If something is wrong you open a dispute instead of chasing the seller.

What every offer must state

Country and regionWhere the number is issued, plus the city where relevant
Area code / prefixThe dialling prefix buyers filter on
Number typeGeographic, national, mobile, toll-free or fixed
CapabilitiesVoice, inbound SMS, outbound SMS, fax
ChannelsConcurrent calls the number supports
Carrier / operatorThe upstream the number sits on
Setup fee and billing unitOne-off cost plus monthly, per-number or per-minute price
Delivery speedInstant, within an hour, same day or scheduled
Replacement guaranteeDays in which a dead number must be replaced
Last verifiedWhen the seller last confirmed the stock is live

Sellers who leave a field blank still appear in results, but the offer is flagged as unconfirmed so you know what has not been verified.

Frequently asked

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