Reviewed allocation records
O2 mobile number allocations
Browse 151 published prefixes associated with O2 in the reviewed Ofcom data.
These records use the allocation name Telefonica UK Limited. O2 is the display name used here to help you find those ranges.
What the allocation tells you
A range listing does not prove that O2 currently serves a particular number. Numbers can be ported, allocations can change and caller ID can be spoofed. This data does not identify the caller or rate a network's safety.
Reviewed mobile prefixes
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07762
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 November 2000
View 07762 prefix -
07763
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 November 2000
View 07763 prefix -
07764
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 November 2000
View 07764 prefix -
07783
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date22 March 2005
View 07783 prefix -
07784
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date22 March 2005
View 07784 prefix -
07793
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date30 January 2003
View 07793 prefix -
07801
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 October 1997
View 07801 prefix -
07802
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 December 1997
View 07802 prefix -
07803
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 October 1997
View 07803 prefix -
07808
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 October 1997
View 07808 prefix -
07809
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 October 1997
View 07809 prefix -
07819
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date30 January 2003
View 07819 prefix -
07820
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date30 January 2003
View 07820 prefix -
07821
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date2 October 2003
View 07821 prefix -
07834
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date2 October 2003
View 07834 prefix -
07835
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date12 February 2004
View 07835 prefix -
07840
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date12 February 2004
View 07840 prefix -
07841
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2004
View 07841 prefix -
07842
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 August 2005
View 07842 prefix -
07843
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date12 February 2004
View 07843 prefix -
07844
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date30 June 2005
View 07844 prefix -
07845
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2004
View 07845 prefix -
07849
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2004
View 07849 prefix -
07850
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 December 1997
View 07850 prefix -
07851
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2004
View 07851 prefix -
07856
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date25 October 2005
View 07856 prefix -
07857
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date25 October 2005
View 07857 prefix -
07858
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date25 October 2005
View 07858 prefix -
07860
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 December 1997
View 07860 prefix -
07871
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date28 September 2004
View 07871 prefix -
07885
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 December 1997
View 07885 prefix -
07889
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date15 December 1997
View 07889 prefix -
07894
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 February 2006
View 07894 prefix -
07895
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 February 2006
View 07895 prefix -
07902
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 February 2006
View 07902 prefix -
07907
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 February 2006
View 07907 prefix -
07912
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2006
View 07912 prefix -
07921
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date28 September 2004
View 07921 prefix -
07922
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date12 July 2005
View 07922 prefix -
07923
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 February 2006
View 07923 prefix -
07925
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2006
View 07925 prefix -
07926
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date9 January 2006
View 07926 prefix -
07927
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date9 January 2006
View 07927 prefix -
07928
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date9 January 2006
View 07928 prefix -
07933
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date12 July 2005
View 07933 prefix -
07934
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2006
View 07934 prefix -
07935
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2006
View 07935 prefix -
07936
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date24 May 2006
View 07936 prefix -
07938
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date16 August 2006
View 07938 prefix -
07955
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date12 July 2005
View 07955 prefix -
07999
Mobile prefix
Ofcom allocation nameTelefonica UK Limited
Allocation date12 July 2005
View 07999 prefix
Source and coverage
Ofcom allocation label: Telefonica UK Limited.
Source published: .
Source checked: 6 September 2026. These are 151 reviewed five-digit prefixes, not a count of subscribers or every allocation held by the organisation.
Each included prefix has a consistent holder and allocation date across its complete block. Mixed or incomplete blocks are omitted.