how many digits do uk phone numbers have
Telephone numbers in the United Kingdom Since 28 April 2001, almost all geographic numbers and most non-geographic numbers have 9 or 10 national (significant) numbers after the "0" trunk code. All mobile telephone numbers have 10 national (significant) numbers after the "0" trunk code. The overall structure of the UK's National Numbering Plan is:[1]
999 (emergency telephone number) Countries and territories using 999 include Bahrain, Bangladesh, Botswana, Ghana, Hong Kong, Kenya, Macau, Malaysia, Mauritius, Qatar, Ireland, Poland, Saudi Arabia, Singapore, Swaziland, Trinidad and Tobago, the United Arab Emirates, the United Kingdom, and Zimbabwe.