With the Proweblook Phone Validator plugin you can easily verify if a phone number is really valid and callable (https://proweblook.com).

With the Byteplant Phone Validator plugin you can easily verify if a phone number is really valid and callable (https://www.byteplant.com/phone-validator/).

A simple and nice plugin to get auto country flag from user ip address on gravity form phone field.

Adds a country flag and phone validation to the WooCommerce checkout phone field. Supports Classic and Block Checkout.

Validate and normalize Saudi mobile numbers across WooCommerce classic and block checkout, including Arabic and Persian digits.

Prevent out-of-area leads by validating phone number area codes on your contact forms before submission.