The Foreign and Commonwealth Office:
Tel: 0207 008 1500
See also Foreign and Commonwealth Office.
The appropriate Embassy or Consulate:
The London Diplomatic List contains information about all the Embassies based in London and can be found at https://www.gov.uk/government/publications/foreign-embassies-in-the-uk
Tel: 0870 600 5522
International Directory Enquiries:
Tel: Dial 118 104, if address abroad known.
Protecting Children and Uniting Families Across Borders (CFAB):
1-3 Brixton Road
Advice Line: 020 7735 8941
Reception: 020 3176 0253
See also CFAB