The correct way to write telephone numbers beginning 01550 is in the format 01550 xxxxxx
The local number (the part of the number after the dialling code) is 6 digits long
The cost of calling an 01550 number
When calling from a landline, calls to 01550 numbers can cost up to 10p per minute, dependent on the time of day, and there is usually also a call set-up fee
When calling from mobile phones, calls to these numbers cost between 10p and 40p per minute.
Most landline operators offer inclusive call packages which allow calls free at certain times of the day, or at all times, and most mobile companies include free any-time minutes in the monthly contract payment, or a bundle of minutes for a reduced cost in the form of a top-up credit.