Phone and Postal Information
- BT's Online Directory Enquiries
Formerly PhonenetUK, the BT site offers 10 free Directory Enquiry searches per day, without registration. Both business and residential included - International Dialling Codes
International Direct Dialling prefix codes for countries around the world. Country listings include links to major city codes - OFCOM
UK telecomms regulator - Post Code Finder
Converts address to postcode, and back - Royal Mail
Postal rates, stamps and other services - Telephone Directories on the Web
Links to Yellow Pages, White Pages, Business Directories, Email Addresses and Fax Listings from over 150 countries all around the world - Timezone Converter
Find out what time it is anywhere in the world; for planning travel, phone calls, etc. - UK Phonebook
UK business and residential search. Also includes a postcode finder or postcode-to-street reverse lookup - Universal Postal Union
- Yell
Yellow Pages information service
