555-236-801

From Tardis Wiki, the free Doctor Who reference

555-236-801 was the toll free number of GeoComTex, as advertised on their website.

On the page "GEOCOMTEX - Support Site & FAQS", it suggested that the reader "give [them] a shout" with it if they had a problem with one of their products. (PROSE: Support Site & FAQS)