DID Number Cost Estimator

DID stands for Direct Inward Dialing. A DID number is a virtual telephone number that routes incoming calls directly to a specific person, team, or system — without requiring a physical telephone line per number. DIDs are provisioned over SIP trunks or VoIP services and are the standard mechanism for assigning individual phone numbers in a business phone system. A company might have 10 employees but need 50 DID numbers to cover individual extensions, department lines, fax lines, and campaign tracking numbers.

Local DIDs are geographic phone numbers associated with a specific area code and region — they appear "local" to callers in that area and typically have no per-minute inbound charges for the receiving business. Toll-free numbers (800/888/877/866/855/844/833) can be called from anywhere in the country at no cost to the caller — the receiving business pays inbound per-minute charges. Toll-free numbers are typically used for customer-facing service lines where you want to remove any barrier to calling. Local DIDs are better for regional offices and sales representatives who want to establish local presence.

DID pricing varies significantly by provider and number type. Local DIDs from VoIP/SIP providers typically cost $1–$2/month. Traditional PSTN carriers charge $4–$8/month for the same numbers. Toll-free numbers run $2–$5/month plus per-minute inbound charges ($0.01–$0.04/min). Vanity numbers (e.g., 1-800-FLOWERS) can cost $10–$50/month depending on desirability. International DIDs (local numbers in foreign countries) range from $5–$25/month depending on the country. Enterprise VoIP platforms often bundle DID costs into per-seat pricing.

Yes — number porting allows you to transfer your existing phone numbers to a new provider without changing the numbers. This is regulated by the FCC (in the US) and equivalent bodies in other countries. Porting typically takes 2–10 business days for local numbers and 2–4 weeks for toll-free numbers. Most VoIP providers (including EaseDial) port numbers at no charge. You must keep your existing service active during the porting process — your provider cannot cancel service until porting is complete.

A vanity phone number is a memorable telephone number where the digits spell a word or phrase when entered on a standard phone keypad (e.g., 1-800-FLOWERS = 1-800-356-9377, or 1-800-MATTRESS). Vanity numbers are exclusively toll-free in the US (they require the 800/888/877 etc. prefix to have enough digits to spell meaningful words). They carry premium pricing ($10–$50/month) because desirable vanity numbers are scarce. They are most valuable for businesses with large marketing budgets and high inbound call volume from advertising.

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