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Phone numbers · Licensed U.S. voice carrier

Local phone numbers, porting and caller-ID name for business calling

Koda Voice provisions local phone numbers (DIDs) across U.S. markets, ports your existing numbers, registers a caller-ID name (CNAM) and routes inbound calls to your SIP endpoint or phone system. Because Koda assigns the number and vets the customer at onboarding, Koda can verify the customer's authorization to use that number, a condition STIR/SHAKEN sets for Full (A) attestation.

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What Koda provides: local phone numbers for business, porting, CNAM and routing.

  • Local numbers (DIDs)

    Direct inward dialing numbers in the area codes your team serves, provisioned against the use you describe at onboarding.

  • Number porting

    Koda prepares the request, tracks the losing carrier and schedules the cutover for numbers customers already know.

  • Caller-ID name (CNAM)

    A registered business name for each number Koda provisions or ports, taken from your onboarding documents.

  • Inbound routing

    Per-number or per-trunk routing over SIP to a PBX, contact platform or software product.

Numbering resources are administered under Federal Communications Commission (FCC) rules. The North American Numbering Plan Administrator's guide for interconnected VoIP providers states that a provider must hold an Operating Company Number (OCN) to apply for numbering resources and that the National Exchange Carrier Association (NECA) assigns it. NECA assigned Koda Voice its own OCN, 583H; verify it in the Trust Center.

How does local presence work, and when is it appropriate?

Local presence means calling from a number whose area code belongs to the market you are calling. Koda provisions numbers in the markets a customer serves and ties each number to the use described in the Know-Your-Customer (KYC) review.

Local presence is appropriate when the business genuinely operates there: an office, licensed agents, a service territory or existing customers. It is not a way around call labeling; a number used briefly and swapped when labels appear is number rotation, which the acceptable-use policy does not permit and which analytics engines score against. Real-estate teams are the clearest case.

Porting

How do I port my existing numbers to Koda?

Standard documents; the losing carrier sets the timeline.

  1. 01

    Gather the documents

    A signed Letter of Authorization (LOA), a recent bill, and the Customer Service Record (CSR) details: account number, billing name and service address as the losing carrier holds them, plus any port-out PIN.

  2. 02

    Koda validates and submits

    Koda checks the request against the CSR first. Mismatched names, addresses or account numbers are the usual reason a port is rejected.

  3. 03

    The losing carrier responds

    The losing carrier confirms or rejects the request. The timeline depends on that carrier; Koda relays every status change.

  4. 04

    Cutover

    On the confirmed date the numbers move to Koda and calls arrive on your trunk. Keep the old service active until Koda confirms completion.

Numbers bundled into a phone-system contract or spread across accounts take more preparation; say so when you contact sales. The LOA and bill also serve Koda's Know-Your-Customer review.

What is CNAM, and how does a caller-ID name get displayed?

CNAM (Caller ID Name) is the name associated with a phone number. The name is not sent with the call; the terminating carrier looks the calling number up in a CNAM database (a dip) and displays the name it finds.

Koda registers a CNAM entry for each number it provisions or ports, using the business name on your onboarding documents; the order form states the character limit. Display is decided by the terminating carrier and the recipient's device, so it varies by network. CNAM is separate from STIR/SHAKEN, which authenticates the number, not the name.

Number reputation

How does Koda help keep a number's reputation healthy?

Labels such as “Spam Likely” come from analytics engines the terminating carriers run. Koda treats reputation as part of the service.

  • Per-number monitoring

    Koda monitors answer-seizure ratio, call duration and volume per number and per customer and flags changes; see why calls get flagged.

  • Calling-hour awareness

    The Federal Communications Commission (FCC) rule at 47 CFR § 64.1200(c)(1) bars telephone solicitations to residential subscribers before 8 a.m. or after 9 p.m., called-party local time. Koda builds that window into onboarding and monitoring.

  • Signed under Koda's own identity

    Calls originated on Koda's network are signed under Koda's own Service Provider Code, 583H, not a reseller's certificate. See the STIR/SHAKEN page.

Which numbers may be used for which calls?

The calling number must be one the customer is authorized to use, for the purpose described at onboarding. Where a number comes from decides what Koda can verify; the attestation level follows the STIR/SHAKEN framework in ATIS-1000074.

Number source What Koda has verified Level the framework supports
Provisioned by Koda Customer identity (KYC) and assignment of the number Full (A) when both conditions are verified
Ported to Koda Customer identity and ownership, via the LOA Full (A) once the port completes; Partial (B) while it is in progress
Held at another carrier Customer identity; number authorization if documented Partial (B); Full (A) only if authorization is documented

The attestation level is decided per call against the ATIS-1000074 conditions; Koda signs at the level its verification supports at the time of the call, customers do not select it, and no level is promised in advance. Attestation is one signal among several that terminating carriers use; a valid signature does not by itself decide whether a call is delivered or labeled. Numbers are for ongoing business communications, never resold, brokered or disposable; platforms that assign numbers to their own customers describe that at onboarding.

How do numbers connect to your phone system or platform?

Numbers connect to your equipment over SIP. Koda registers the inbound destination: an IP address or hostname and port, authenticated by IP allow-list or SIP digest credentials; a secondary inbound destination is set at onboarding on request. Routing is set per number or per trunk, and the same trunk carries outbound termination. Codec and transport options are on the Network page; trunk set-up is on the SIP trunking page.

FAQ

Frequently asked questions

What is a DID and how is it different from a regular business phone number?

A DID (direct inward dialing number) is a phone number a carrier routes straight to a SIP endpoint or phone system rather than to one desk line. A local business number from Koda is a DID: it carries the local area code, and inbound calls arrive over your SIP trunk.

Can I get a local number in an area code where I have no office?

Local numbers in markets where you have no office are available when your team genuinely serves that market: licensed agents, a service territory or customers there. Koda issues numbers against the use you describe in the Know-Your-Customer review; the acceptable-use policy does not permit rotating numbers to evade labels.

What do I need to port a number to Koda, and how long does it take?

Porting a number to Koda requires a signed Letter of Authorization, a recent bill, and the account number, billing name and service address exactly as your current carrier's Customer Service Record holds them. The timeline depends on the losing carrier; Koda submits, tracks and schedules the cutover.

How do I make my company name show on caller ID?

Caller-ID name (CNAM) is a registry entry tied to your number, not data sent with the call. Koda registers the business name from your onboarding documents against each number it provisions or ports. The terminating carrier looks the number up and displays what it finds, so display varies by carrier and device.

Why do business numbers get labeled spam, and what helps?

Spam labels are applied by the terminating carriers' analytics engines, based on call patterns and complaints tied to the number. A small, stable set of numbers, a registered caller-ID name, calling inside the federal 8 a.m. to 9 p.m. window and volume matching your stated use help. No carrier can promise a label never appears.

Talk to Koda about numbers and porting.

Tell us which markets you serve and which numbers to port.

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