Is it correct to write the telephone abbreviation as Tel when the . . . Tel: (212) 987-6543 While there are some area codes (the first three numbers) that are reserved to cell phones, many area codes are used for land, cell, and fax, and people do not necessarily know which numbers are which, so marking is common
punctuation - Standard format for phone numbers? - English Language . . . Tel: (01273) 568010 (0781 39) 9587 If customers wish to include the Exchange name it should be shown before the National Dialling Code eg Tel: Brighton (01273) 568010 Tel: Barlaston (0781 39) 9587 Tel: Bristol (0117) 927 2272 Non geographic codes (Mobiles, Paging, Linkline etc)