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Nigeria phone directory

Curated useful numbers for Nigeria and how to dial +234 from abroad. Verify on official sources before calling.

How to dial

Use the full international format: +234 plus the national number. Drop a leading 0 from national numbers when you dial internationally. Always confirm numbers and hours on the institution's official website.

Full +234 dialing guide →

Useful numbers in Nigeria

Banking & payments

GTBank
- GTConnect contact centre
  +234 201 448 0000
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- GTConnect contact centre
  +234 700 4826 66328
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- GTBank complaints and enquiries line
  +234 201 908 0000
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Government & public services

FIRS
- Nigeria Revenue Service / former FIRS helpdesk
  +234 209 460 2700
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NIS Nigeria Immigration
- NIS complaints and enquiries
  +234 912 147 7092
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- NIS visa enquiries
  +234 705 340 1399
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- NIS headquarters contact line
  +234 912 190 0655
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PENCOM
- PenCom head office line
  +234 209 460 3955
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- PenCom North-Central zonal office
  +234 807 885 9104
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Health & social

NHIA
- NHIA main contact line
  +234 805 928 2008
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- NHIA main contact line
  +234 806 574 4100
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- NHIA headquarters phone number
  +234 804 231 8888
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Institution page →

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