The old number for international directory enquiries (153) was withdrawn in 2003 and replaced by six digit numbers starting with 118. The cost of calling directory enquiry services varies depending on the company you call and the network you call from.
The companies below offer international directory enquiry services. (There are many more.)
- Further Telephone Resources
- London Telephones Introduction
- Recognizing London Telephone Numbers
- Payphones in London
- Calls from Your Hotel Room
- Prepaid Calling Cards
- Making International Calls from the UK
- Calling the UK from Overseas
- Cell Phones in London
International Directory Enquiries
| Company | Number | Connection Charge | Cost per min |
| 118.com | 118 118 | N/A | Free online |
| 118 118 | 118 118 | 79p | 29p p/min |
| BT | 118 505 | 63.5p | 195p p/min |
| O2 | 118 402 | 0p | 60p p/min |
