Tanzanian Phone Number Validation

A simple npm package for validating Tanzanian phone numbers using regular expressions.

Installation

You can install this package via npm:

npm i tanzanian-phone-validator

Example

You can check an example of this library Here.

Here is how it look like:

Usage

Use the isValidPhoneNumber function to validate a phone number. It returns true if the phone number is valid and false otherwise.

Use the getPhoneNumberDetails function to get information about a phone number. It returns an object various information about the phone number as shown below:

const results = {
  isValid: true,
  telecomCompanyDetails: {
    prefix: 76,
    company: "Vodacom Tanzania Limited",
    brand: "Vodacom",
    operational: "yes",
  },
};

Usage with validation libraries

Here are some usage examples with different validation libraries:

Using Yup

const yup = require("yup");
import { isValidPhoneNumber } from "tanzanian-phone-validator";

const schema = yup.object({
  phoneNumber: yup
    .string()
    .test("is-tanzanian", "Invalid Tanzanian phone number", (value) => {
      return isValidPhoneNumber(value);
    }),
});

// Example usage
const data = {
  phoneNumber: "+255761234567",
};

schema
  .validate(data)
  .then((validatedData) => {
    console.log("Validation succeeded:", validatedData);
  })
  .catch((error) => {
    console.error("Validation failed:", error.message);
  });

Using Zod

const { z } = require("zod");
import { validateTanzanianPhoneNumber } from "tanzanian-phone-validator";

const schema = z.object({
  phoneNumber: z.string().refine(
    (value) => {
      return isValidPhoneNumber(value);
    },
    {
      message: "Invalid Tanzanian phone number",
    }
  ),
});

// Example usage
const data = {
  phoneNumber: "+255761234567",
};

try {
  const validatedData = schema.parse(data);
  console.log("Validation succeeded:", validatedData);
} catch (error) {
  console.error("Validation failed:", error.message);
}

Direct usage (Node Js)

You can also directly use the isValidPhoneNumber function:

import { validateTanzanianPhoneNumber } from "tanzanian-phone-validator";

const phoneNumber = "+255761234567";

if (isValidPhoneNumber(phoneNumber)) {
  console.log("Valid Tanzanian phone number.");
} else {
  console.log("Invalid Tanzanian phone number.");
}

List of Tanzanian mobile network operators and their prefixes

This table was used to used to create this package. IT can be found in wikipedia (Click here).. Note : this package does not validate for Operators which are not in Operation nor on this table.

Prefix	Operator	Trading as	Operational[1]
61	Viettel Tanzania Limited	halotel	yes
62	Viettel Tanzania Limited	halotel	yes
63	Mkulima African Telecommunication Company Limited	Amotel	no
64	Wiafrica Tanzania Limited	CooTel	no
65	MIC Tanzania Limited	tiGo	yes
66	Smile Communications Tanzania Limited	smile	yes
67	MIC Tanzania Limited	tiGo	yes
68	Airtel Tanzania Limited	airtel	yes
69	Airtel Tanzania Limited	airtel	yes
71	MIC Tanzania Limited	tiGo	yes
72	MO Mobile Holding Limited		no
73	Tanzania Telecommunications Company Ltd	TTCL	yes
74	Vodacom Tanzania Limited	Vodacom	yes
75	Vodacom Tanzania Limited	Vodacom	yes
76	Vodacom Tanzania Limited	Vodacom	yes
77	MIC Tanzania Limited	tiGo	yes
78	Airtel Tanzania Limited	airtel	yes
79	Benson Informatics Ltd	Smart	no

License This package is licensed under the MIT License. See the LICENSE..