The
National Telephone Number Plan defines 071 to 075 inclusive and 077 to 079 inclusive as being for the purpose of "Mobile Services".
Said term is defined thus:
Quote:‘Mobile Service’ means a service consisting in the conveyance of Signals, by means of an Electronic Communications Network, where every Signal that is conveyed thereby has been, or is to be, conveyed through the agency of Wireless Telegraphy to or from Apparatus designed or adapted to be capable of being used while in motion.
Most mobile numbers are allocated to "3", EE (Orange and T-Mobile), O2 and Vodafone. However, some are allocated to "other" providers, which evidently are Mobile Services.
O2 maintains a list of what it calls
07 non-mobile and call forwarding services. Whilst 07405 doesn't feature, quite a few others do.
The
3 Price Guide gives a list of what it calls "Non Standard 07 numbers": 074060 / 074061 / 074062 / 074067 / 0740671 - 9 / 074176 / 074181 / 0741821 - 9 / 074185 / 074411 / 074413 / 074414 / 074515 / 075200 / 075201 / 075203 / 075204 / 075205 / 075206 / 075207 / 075208 / 075209 / 075370 / 075371 / 075373 / 075375 / 075376 / 075377 / 075378 / 075379 / 075580 / 075581 / 075582 / 075590 / 075591 / 075592 / 075593 / 075594 / 075595 / 075596 / 075597 / 075598 / 075599 / 075710 / 075718 / 075890 / 075891 / 075892 / 075893 / 075898 / 075899 / 077000 / 077001 / 077442 / 077443 / 077444 / 077445 / 077446 / 077447 / 077448 / 077449 / 0775520 / 0775522 / 0775530 / 0775532-5 / 0775539 / 0775540-6 / 0775548-9 / 0775550 / 0775555 / 078220 / 078221 / 078223 / 078224 / 078225 / 078226 / 078227 / 078229 / 078644 / 78722 / 078727 / 078730 / 078744 / 078745 / 078920 / 078922 / 078925 / 078931 / 078933 / 078938 / 078939 / 079111 / 079112 / 079117 / 079118 / 079245 / 079246 / 079780 / 079781 / 079782 / 079783 / 079784 / 079785 / 079786 / 079788 / 079789
Out of interest, are these two the same?