This page contains information about which telephone companies the various 02078 numbers are allocated to.
| First Digits | Status | Communications Provider | Number Length | Notes | Change |
|---|---|---|---|---|---|
| 020 7800 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7801 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7802 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7803 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7804 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7805 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7806 | Allocated | Vodafone Ltd (Energis) | 2+8 | - | 26/05/2006 |
| 020 7807 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7808 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7809 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7810 | Allocated | Vodafone Ltd (YC) | 2+8 | - | 06/04/2004 |
| 020 7811 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7812 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7813 | Allocated | Virgin Media Wholesale Limited | 2+8 | - | 30/10/2009 |
| 020 7814 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7815 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7816 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7817 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7818 | Allocated | Six Degrees Unified Comms Limited | 2+8 | F-Digit '0' | 11/01/2005 |
| 020 7819 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7820 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7821 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7822 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7823 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7824 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7825 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7826 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7827 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7828 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7829 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7830 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7831 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7832 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7833 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7834 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7835 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7836 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7837 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7838 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7839 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7840 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7841 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7842 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7843 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7844 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7845 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7846 | Allocated | Ziron (UK) Ltd | 2+8 | F-Digit '2' | 05/03/2013 |
| 020 7847 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7848 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7849 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7850 | Allocated | Six Degrees Unified Comms Limited | 2+8 | F-Digit '3' | 11/01/2005 |
| 020 7851 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7852 | Allocated | Verizon UK Ltd | 2+8 | - | 03/05/2000 |
| 020 7853 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7854 | Allocated | Virgin Media Limited | 2+8 | - | 26/05/1999 |
| 020 7855 | Allocated | Level 3 Communications UK Limited | 2+8 | - | 25/05/2000 |
| 020 7856 | Allocated | Six Degrees Unified Comms Limited | 2+8 | F-Digit '1' | 11/01/2005 |
| 020 7857 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7858 | Allocated | Six Degrees Unified Comms Limited | 2+8 | F-Digit '0' | 11/01/2005 |
| 020 7859 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7860 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7861 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7862 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7863 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7864 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7865 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7866 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7867 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7868 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7869 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7870 | Allocated | Gamma Telecom Holdings Ltd | 2+8 | - | 04/12/2002 |
| 020 7871 | Allocated | Gamma Telecom Holdings Ltd | 2+8 | - | 04/12/2002 |
| 020 7872 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7873 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7874 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7875 | Allocated | Relax Telecom Limited | 2+8 | F-Digit '0' | 24/09/2013 |
| 020 7876 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7877 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7878 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7879 | Allocated | Virgin Media Wholesale Limited | 2+8 | - | 30/10/2009 |
| 020 7880 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7881 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7882 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7883 | Allocated | Resilient Networks Plc | 2+8 | F-Digits '0,1,2,3,4,5,6,7,8,9' | 26/05/1999 |
| 020 7884 | Allocated | Virgin Media Limited | 2+8 | - | 29/07/1999 |
| 020 7885 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7886 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7887 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7888 | Allocated | BT | 2+8 | - | 26/05/1999 |
| 020 7889 | Allocated | Talk Numbers Ltd | 2+8 | F-Digit '8' | 24/10/2012 |
| 020 7890 | Allocated | Verizon UK Ltd | 2+8 | - | 26/05/1999 |
| 020 7891 | Allocated | Verizon UK Ltd | 2+8 | - | 26/05/1999 |
| 020 7892 | Allocated | Verizon UK Ltd | 2+8 | - | 26/05/1999 |
| 020 7893 | Allocated | Verizon UK Ltd | 2+8 | - | 26/05/1999 |
| 020 7894 | Allocated | Verizon UK Ltd | 2+8 | - | 26/05/1999 |
| 020 7895 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7896 | Allocated | Vodafone Ltd (C&W) | 2+8 | - | 17/02/2010 |
| 020 7897 | Allocated | Virgin Media Limited | 2+8 | - | 27/06/2007 |
| 020 7898 | Allocated | COLT Technology Services | 2+8 | - | 26/05/1999 |
| 020 7899 | Allocated | Spacetel UK Ltd | 2+8 | - | 26/05/1999 |