
The compact Times will be sold alongside the broadsheet version from next Monday in both TV regions, taking the total print run to 300,000.
Last month the small Times went on sale in Manchester, Liverpool, the Midlands and South East, as well as inside the M25 following its London debut in November last year.
Times editor Robert Thomson said: "There is no doubt that many discerning readers appreciate traditional Times quality in the new format."
He added: "Other newspapers have yet to appreciate that as well as great dynamism in the North West, there is a thriving economy and sophisticated readership in the North East."
There has been constant speculation that The Times, along with The Independent, will go fully tabloid eventually. However a spokesperson at The Times claims that the paper is not about to rush into anything.
Earlier this month Brand Republic revealed that The Independent was to be the first paper to drop its broadsheet format completely in Wales, the South West of England, Ireland and Scotland. From the end of January it also dropped its broadsheet format altogether on Saturdays.
If the papers go fully tabloid they may be competing with Stephen Glover's new publication, tentatively called The World, in the highbrow tabloid market. The new launch is modelled on France's Le Monde.
Contrary to earlier speculation The Guardian will not go tabloid in the near future despite the apparent circulation increases of its competitors. Editor Alan Rusbriger told staff around 10 days ago that it will not launch a tabloid version partly because of cost.
The Times' circulation was up 3.8% to 660,713 last month compared with The Independent's strong increase of 4.6% in the same period since it launched its tabloid version. The smaller paper has hit sales of The Guardian, which is down more than 6% year on year.
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