PhoneCheck API

API ID 14774

Phone number validation API for 240+ countries: numbering-plan validity, country, E.164 and display formats, line type where plan data supports it. Batch up to 100.

API Documentation

Endpoints

Request
Validate a single phone number with a GET request. Pass the phone number as the phone query parameter, with an optional country hint, and get numbering-plan validity, country, E.164 and display formats, plus line type where plan data supports it. PhoneCheck does numbering-plan parsing only — no carrier lookup, no reachability check.
Endpoint ID: 38274
GET https://zylalabs.com/api/14774/phonecheck+api/38274/validate+phone
INPUT PARAMETERS

Validate Phone — Endpoint Features

Object Description
phone Required The phone number to validate, in international format (E.164).
country Optional Optional two-letter country hint (ISO 3166-1 alpha-2, e.g. US).

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

phone
country
API EXAMPLE RESPONSE
JSON
{
    "input": "+14155552671",
    "valid": true,
    "possible": true,
    "country": "US",
    "countryCallingCode": "+1",
    "nationalNumber": "4155552671",
    "e164": "+14155552671",
    "internationalFormat": "+1 415 555 2671",
    "nationalFormat": "(415) 555-2671",
    "type": "FIXED_LINE_OR_MOBILE",
    "uri": "tel:+14155552671",
    "note": "Type is inferred from numbering plans (MOBILE / FIXED_LINE / TOLL_FREE / etc.). Carrier lookup is not included."
}
Validate Phone — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14774/phonecheck+api/38274/validate+phone?phone=+14155552671&country=US' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Validate a single phone number by sending a JSON body to POST /validate. The response is the same numbering-plan check as the GET endpoint: validity, country, E.164 and display formats, plus line type where plan data supports it. PhoneCheck does numbering-plan parsing only — no carrier lookup, no reachability check.
Endpoint ID: 38275
POST https://zylalabs.com/api/14774/phonecheck+api/38275/validate+phone+via+post
INPUT PARAMETERS

Validate Phone via POST — Endpoint Features

Object Description
Request Body Required Json

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

API EXAMPLE RESPONSE
JSON
{
    "input": "+14155552671",
    "valid": true,
    "possible": true,
    "country": "US",
    "countryCallingCode": "+1",
    "nationalNumber": "4155552671",
    "e164": "+14155552671",
    "internationalFormat": "+1 415 555 2671",
    "nationalFormat": "(415) 555-2671",
    "type": "FIXED_LINE_OR_MOBILE",
    "uri": "tel:+14155552671",
    "note": "Type is inferred from numbering plans (MOBILE / FIXED_LINE / TOLL_FREE / etc.). Carrier lookup is not included."
}
Validate Phone via POST — CODE SNIPPETS

curl --location --request POST 'https://zylalabs.com/api/14774/phonecheck+api/38275/validate+phone+via+post' --header 'Authorization: Bearer YOUR_API_KEY' 

--data-raw '{"phone": "+14155552671", "country": "US"}'

    
Request
Validate up to 100 phone numbers in a single call. Send a JSON body with a numbers array and get per-number results plus a summary {total, valid_count, valid_rate, invalid_numbers, by_country, by_type, duplicates}. A batch counts as one API call; more than 100 returns a 400 BATCH_TOO_LARGE error.
Endpoint ID: 38276
POST https://zylalabs.com/api/14774/phonecheck+api/38276/validate+phone+batch
INPUT PARAMETERS

Validate Phone Batch — Endpoint Features

Object Description
Request Body Required Json

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

API EXAMPLE RESPONSE
JSON
{
    "total": 2,
    "results": [
        {
            "input": "+14155552671",
            "valid": true,
            "possible": true,
            "country": "US",
            "countryCallingCode": "+1",
            "nationalNumber": "4155552671",
            "e164": "+14155552671",
            "internationalFormat": "+1 415 555 2671",
            "nationalFormat": "(415) 555-2671",
            "type": "FIXED_LINE_OR_MOBILE",
            "uri": "tel:+14155552671",
            "note": "Type is inferred from numbering plans (MOBILE / FIXED_LINE / TOLL_FREE / etc.). Carrier lookup is not included."
        },
        {
            "input": "+442071234567",
            "valid": true,
            "possible": true,
            "country": "GB",
            "countryCallingCode": "+44",
            "nationalNumber": "2071234567",
            "e164": "+442071234567",
            "internationalFormat": "+44 20 7123 4567",
            "nationalFormat": "020 7123 4567",
            "type": "FIXED_LINE",
            "uri": "tel:+442071234567",
            "note": "Type is inferred from numbering plans (MOBILE / FIXED_LINE / TOLL_FREE / etc.). Carrier lookup is not included."
        }
    ],
    "summary": {
        "total": 2,
        "valid_count": 2,
        "invalid_count": 0,
        "valid_rate": 1,
        "invalid_numbers": [],
        "by_country": {
            "US": 1,
            "GB": 1
        },
        "by_type": {
            "FIXED_LINE_OR_MOBILE": 1,
            "FIXED_LINE": 1
        },
        "duplicates": [],
        "duplicate_count": 0
    }
}
Validate Phone Batch — CODE SNIPPETS

curl --location --request POST 'https://zylalabs.com/api/14774/phonecheck+api/38276/validate+phone+batch' --header 'Authorization: Bearer YOUR_API_KEY' 

--data-raw '{"numbers": ["+14155552671", "+442071234567"]}'

    
Request
List every supported country with its calling code. Returns 245 countries — use it to populate country pickers and to validate the country hint for the validate endpoints.
Endpoint ID: 38277
GET https://zylalabs.com/api/14774/phonecheck+api/38277/list+countries
INPUT PARAMETERS

Free test requests remaining: 3 of 3.

This endpoint does not require any input parameters.

API EXAMPLE RESPONSE
JSON
{
    "count": 245,
    "countries": [
        {
            "country": "AC",
            "callingCode": "+247"
        },
        {
            "country": "AD",
            "callingCode": "+376"
        },
        {
            "country": "AE",
            "callingCode": "+971"
        },
        {
            "country": "AF",
            "callingCode": "+93"
        },
        {
            "country": "AG",
            "callingCode": "+1"
        },
        {
            "country": "AI",
            "callingCode": "+1"
        },
        {
            "country": "AL",
            "callingCode": "+355"
        },
        {
            "country": "AM",
            "callingCode": "+374"
        },
        {
            "country": "AO",
            "callingCode": "+244"
        },
        {
            "country": "AR",
            "callingCode": "+54"
        },
        {
            "country": "AS",
            "callingCode": "+1"
        },
        {
            "country": "AT",
            "callingCode": "+43"
        },
        {
            "country": "AU",
            "callingCode": "+61"
        },
        {
            "country": "AW",
            "callingCode": "+297"
        },
        {
            "country": "AX",
            "callingCode": "+358"
        },
        {
            "country": "AZ",
            "callingCode": "+994"
        },
        {
            "country": "BA",
            "callingCode": "+387"
        },
        {
            "country": "BB",
            "callingCode": "+1"
        },
        {
            "country": "BD",
            "callingCode": "+880"
        },
        {
            "country": "BE",
            "callingCode": "+32"
        },
        {
            "country": "BF",
            "callingCode": "+226"
        },
        {
            "country": "BG",
            "callingCode": "+359"
        },
        {
            "country": "BH",
            "callingCode": "+973"
        },
        {
            "country": "BI",
            "callingCode": "+257"
        },
        {
            "country": "BJ",
            "callingCode": "+229"
        },
        {
            "country": "BL",
            "callingCode": "+590"
        },
        {
            "country": "BM",
            "callingCode": "+1"
        },
        {
            "country": "BN",
            "callingCode": "+673"
        },
        {
            "country": "BO",
            "callingCode": "+591"
        },
        {
            "country": "BQ",
            "callingCode": "+599"
        },
        {
            "country": "BR",
            "callingCode": "+55"
        },
        {
            "country": "BS",
            "callingCode": "+1"
        },
        {
            "country": "BT",
            "callingCode": "+975"
        },
        {
            "country": "BW",
            "callingCode": "+267"
        },
        {
            "country": "BY",
            "callingCode": "+375"
        },
        {
            "country": "BZ",
            "callingCode": "+501"
        },
        {
            "country": "CA",
            "callingCode": "+1"
        },
        {
            "country": "CC",
            "callingCode": "+61"
        },
        {
            "country": "CD",
            "callingCode": "+243"
        },
        {
            "country": "CF",
            "callingCode": "+236"
        },
        {
            "country": "CG",
            "callingCode": "+242"
        },
        {
            "country": "CH",
            "callingCode": "+41"
        },
        {
            "country": "CI",
            "callingCode": "+225"
        },
        {
            "country": "CK",
            "callingCode": "+682"
        },
        {
            "country": "CL",
            "callingCode": "+56"
        },
        {
            "country": "CM",
            "callingCode": "+237"
        },
        {
            "country": "CN",
            "callingCode": "+86"
        },
        {
            "country": "CO",
            "callingCode": "+57"
        },
        {
            "country": "CR",
            "callingCode": "+506"
        },
        {
            "country": "CU",
            "callingCode": "+53"
        },
        {
            "country": "CV",
            "callingCode": "+238"
        },
        {
            "country": "CW",
            "callingCode": "+599"
        },
        {
            "country": "CX",
            "callingCode": "+61"
        },
        {
            "country": "CY",
            "callingCode": "+357"
        },
        {
            "country": "CZ",
            "callingCode": "+420"
        },
        {
            "country": "DE",
            "callingCode": "+49"
        },
        {
            "country": "DJ",
            "callingCode": "+253"
        },
        {
            "country": "DK",
            "callingCode": "+45"
        },
        {
            "country": "DM",
            "callingCode": "+1"
        },
        {
            "country": "DO",
            "callingCode": "+1"
        },
        {
            "country": "DZ",
            "callingCode": "+213"
        },
        {
            "country": "EC",
            "callingCode": "+593"
        },
        {
            "country": "EE",
            "callingCode": "+372"
        },
        {
            "country": "EG",
            "callingCode": "+20"
        },
        {
            "country": "EH",
            "callingCode": "+212"
        },
        {
            "country": "ER",
            "callingCode": "+291"
        },
        {
            "country": "ES",
            "callingCode": "+34"
        },
        {
            "country": "ET",
            "callingCode": "+251"
        },
        {
            "country": "FI",
            "callingCode": "+358"
        },
        {
            "country": "FJ",
            "callingCode": "+679"
        },
        {
            "country": "FK",
            "callingCode": "+500"
        },
        {
            "country": "FM",
            "callingCode": "+691"
        },
        {
            "country": "FO",
            "callingCode": "+298"
        },
        {
            "country": "FR",
            "callingCode": "+33"
        },
        {
            "country": "GA",
            "callingCode": "+241"
        },
        {
            "country": "GB",
            "callingCode": "+44"
        },
        {
            "country": "GD",
            "callingCode": "+1"
        },
        {
            "country": "GE",
            "callingCode": "+995"
        },
        {
            "country": "GF",
            "callingCode": "+594"
        },
        {
            "country": "GG",
            "callingCode": "+44"
        },
        {
            "country": "GH",
            "callingCode": "+233"
        },
        {
            "country": "GI",
            "callingCode": "+350"
        },
        {
            "country": "GL",
            "callingCode": "+299"
        },
        {
            "country": "GM",
            "callingCode": "+220"
        },
        {
            "country": "GN",
            "callingCode": "+224"
        },
        {
            "country": "GP",
            "callingCode": "+590"
        },
        {
            "country": "GQ",
            "callingCode": "+240"
        },
        {
            "country": "GR",
            "callingCode": "+30"
        },
        {
            "country": "GT",
            "callingCode": "+502"
        },
        {
            "country": "GU",
            "callingCode": "+1"
        },
        {
            "country": "GW",
            "callingCode": "+245"
        },
        {
            "country": "GY",
            "callingCode": "+592"
        },
        {
            "country": "HK",
            "callingCode": "+852"
        },
        {
            "country": "HN",
            "callingCode": "+504"
        },
        {
            "country": "HR",
            "callingCode": "+385"
        },
        {
            "country": "HT",
            "callingCode": "+509"
        },
        {
            "country": "HU",
            "callingCode": "+36"
        },
        {
            "country": "ID",
            "callingCode": "+62"
        },
        {
            "country": "IE",
            "callingCode": "+353"
        },
        {
            "country": "IL",
            "callingCode": "+972"
        },
        {
            "country": "IM",
            "callingCode": "+44"
        },
        {
            "country": "IN",
            "callingCode": "+91"
        },
        {
            "country": "IO",
            "callingCode": "+246"
        },
        {
            "country": "IQ",
            "callingCode": "+964"
        },
        {
            "country": "IR",
            "callingCode": "+98"
        },
        {
            "country": "IS",
            "callingCode": "+354"
        },
        {
            "country": "IT",
            "callingCode": "+39"
        },
        {
            "country": "JE",
            "callingCode": "+44"
        },
        {
            "country": "JM",
            "callingCode": "+1"
        },
        {
            "country": "JO",
            "callingCode": "+962"
        },
        {
            "country": "JP",
            "callingCode": "+81"
        },
        {
            "country": "KE",
            "callingCode": "+254"
        },
        {
            "country": "KG",
            "callingCode": "+996"
        }
    ],
    "_note": "Response truncated for documentation purposes"
}
List Countries — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14774/phonecheck+api/38277/list+countries' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the PhoneCheck API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

No long-term commitment. Upgrade, downgrade, or cancel anytime.

Starts at
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  • Custom Volume
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Overview

Phone number validation API for 240+ countries: numbering-plan validity, country, E.164 and display formats, line type where plan data supports it. Batch up to 100.

PhoneCheck API FAQs

Up to 100, and a batch counts as one API call. Sending more than 100 returns a 400 BATCH_TOO_LARGE error naming the limit and how many you sent — split the list and retry.

Because the numbering-plan metadata for that market does not separate line types. Mainland China, France, Germany, Brazil and India numbers commonly return UNKNOWN; US, GB and AU numbers carry reliable type data. Validity, country and formatting are unaffected.

No. It means the number is correctly formed under its country's numbering plan. PhoneCheck does numbering-plan parsing only — no carrier lookup, no reachability check.

245 countries. GET /countries lists every supported country with its calling code.

Yes. Parsing is done locally with libphonenumber — the same numbering-plan data behind Android — so a number returns exactly the same verdict from the single endpoint and inside a batch.

General FAQs

To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.

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