Understanding Nigerian Phone Number Formats and Networks

Nigeria has over 200 million phone subscribers across four main networks. Understanding how numbers are structured helps you identify networks, validate contacts, and spot potential scams.

The Standard Format

A Nigerian mobile number is 11 digits long and follows this pattern:

0XXX XXX XXXX

It always starts with 0, followed by a 3-digit network prefix, then 7 more digits.

Example: 0803 123 4567

International Format

When calling from abroad, the format is:

+234 XXX XXX XXXX

You drop the leading 0 and add +234 (Nigeria's country code).

Example: +234 803 123 4567

Network Prefixes

MTN Nigeria

The largest network in Nigeria.

• Prefixes: 0703, 0706, 0803, 0806, 0810, 0813, 0814, 0816, 0903, 0906, 0913, 0916

GLO (Globacom)

Nigerian-owned, known for affordable data.

• Prefixes: 0705, 0805, 0807, 0811, 0815, 0905, 0915

Airtel Nigeria

Part of Airtel Africa, formerly Celtel.

• Prefixes: 0701, 0708, 0802, 0808, 0812, 0901, 0902, 0907, 0912

9Mobile

Formerly Etisalat Nigeria.

• Prefixes: 0809, 0817, 0818, 0908, 0909

Landline Numbers

Landlines in Nigeria start with area codes:

• Lagos: 01
• Abuja: 09
• Port Harcourt: 084
• Kano: 064

Landline numbers are less common today but still used by businesses and institutions.

Spotting Invalid Numbers

A number is likely invalid or fake if:

• It has fewer or more than 11 digits
• It doesn't start with 0, 7, 8, or 9
• The prefix doesn't match any network (e.g., 0700 is not assigned)
• It's all the same digit (e.g., 08000000000)
• It's sequential (e.g., 08012345678)

Portability

Since Nigeria introduced Mobile Number Portability (MNP) in 2013, users can switch networks while keeping their number. This means a 0803 number might technically be on GLO now.

To check the current network of a ported number, search it on NigeriaPhoneBook.

Why This Matters

Knowing phone formats helps you:

• Spot invalid numbers in SMS scams
• Identify the network for calling cost purposes
• Verify contacts before trusting them
• Understand caller context (e.g., an Abuja landline suggests a business)

Quick Reference Table

Network	Main Prefixes
MTN	0803, 0806, 0810, 0813, 0814, 0816, 0903
GLO	0705, 0805, 0807, 0811, 0815, 0905
Airtel	0701, 0708, 0802, 0808, 0812, 0902, 0907
9Mobile	0809, 0817, 0818, 0908, 0909

Bookmark this guide — it's useful whenever you need to verify a Nigerian number.