This page contains information about which telephone companies the various 0789 numbers are allocated to.
| First Digits | Status | Communications Provider | Use | Notes | Change |
|---|---|---|---|---|---|
| 078900 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078901 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078902 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078903 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078904 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078905 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078906 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078907 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078908 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078909 | Allocated | Orange | Mobile services | 10 Digit Numbers | 02/2000 |
| 078910 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078911 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078912 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078913 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078914 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078915 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078916 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078917 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078918 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078919 | Allocated | Orange | Mobile services | 10 Digit Numbers | 03/2004 |
| 078920 | Allocated | HAY SYSTEMS LIMITED | Mobile services | 10 Digit Numbers | 05/2006 |
| 078921 | Allocated | Mundio Mobile Limited | Mobile services | 10 Digit Numbers | 06/2006 |
| 078922 | Allocated | Edge Telecom Limited | Mobile services | 10 Digit Numbers | 01/2006 |
| 078923 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 08/2006 |
| 078924 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 08/2006 |
| 078925 | Allocated | FleXtel Limited | Mobile services | 10 Digit Numbers | 01/2006 |
| 078926 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 08/2006 |
| 078927 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 08/2006 |
| 078928 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 08/2006 |
| 078929 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 08/2006 |
| 078930 | Allocated | Magrathea Telecommunications Limited | Mobile services | 10 Digit Numbers | 01/2006 |
| 078931 | Allocated | 24 Seven Communications Ltd | Mobile services | 10 Digit Numbers | 03/2008 |
| 078932 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 10/2006 |
| 078933 | Allocated | Yim Siam Telecom | Mobile services | 10 Digit Numbers | 06/2006 |
| 078934 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 09/2006 |
| 078935 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 10/2006 |
| 078936 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 10/2006 |
| 078937 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 10/2006 |
| 078938 | Allocated | Telephony Services Limited | Mobile services | 10 Digit Numbers | 07/2006 |
| 078939 | Allocated | Citrus Telecommunications Ltd | Mobile services | 10 Digit Numbers | 12/2006 |
| 078940 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078941 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078942 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078943 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078944 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078945 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078946 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078947 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078948 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078949 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078950 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078951 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078952 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078953 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078954 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078955 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078956 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078957 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078958 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078959 | Allocated | Telefonica UK Limited | Mobile services | 10 Digit Numbers | 02/2006 |
| 078960 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078961 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078962 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078963 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078964 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078965 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078966 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078967 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078968 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078969 | Allocated | Orange | Mobile services | 10 Digit Numbers | 09/2004 |
| 078970 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078971 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078972 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078973 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078974 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078975 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078976 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078977 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078978 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078979 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078980 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078981 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078982 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078983 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078984 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078985 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078986 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078987 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078988 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078989 | Allocated | Hutchison 3G UK Ltd | Mobile services | 10 Digit Numbers | 11/2004 |
| 078990 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078991 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078992 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078993 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078994 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078995 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078996 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078997 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078998 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |
| 078999 | Allocated | Vodafone Uk Ltd | Mobile services | 10 Digit Numbers | 08/1998 |