Blackpool ended Newcastle's unbeaten start to life in exile, Jason Euell's second-half goal consigning them to their first defeat in their seventh game outside the top flight and this was a richly deserved result.
"I thought they were absolutely magnificent tonight from start to finish," said their manager, Ian Holloway, who insisted there had been no complacency from the Geordies. "They've got rid of a lot of players who weren't wearing the shirt with pride. They were at it and we were at it."
Blackpool carved out a series of early chances. The best of them fell to Brett Ormerod, whose effort was saved by Steven Harper. The lively Hameur Bouazza also fired in a shot which came back off Harper's chest.
It was all ominously quiet from Newcastle until Fabricio Coloccini had his effort cleared off the line by Stephen Crainey. It was a warning. Danny Guthrie found the room on the right to flight over an excellent cross and Andrew Carroll rose imperiously to head home in unstoppable fashion.
There was nothing wrong with Blackpool's response, however. Charlie Adam fired in a shot that Harper could not hold and Ormerod followed it up to chip over the goalkeeper.
Adam's back-heel set up Bouazza for a shot after half-time that was saved at the foot of the post and it was no injustice when the hosts went ahead. Bouazza's corner triggered a scramble, Euell's first effort was blocked, but he blasted his second into the roof of the net from a narrow angle. The Tangerines' one nervous moment after that was when David Vaughan cleared off the line from Nile Ranger in added time.
Blackpool (4-4-2): Rachubka; Eardley, Baptiste, Evatt, Crainey; Bouazza (Bangura, 82), Southern, Adam (Emmanuel-Thomas, 84), Vaughan; Euell, Ormerod. Substitutes not used: Gilks (gk), Clarke, Martin, Edwards, Almond
Newcastle (4-5-1): Harper; Simpson, Coloccini, S Taylor, Enrique; Guthrie (Lovenkrands, 66), Nolan, Barton (Ranger, 83), Butt, R Taylor (Geremi, 66); Carroll. Substitutes not used: Krul (gk), Lua Lua, Kadar, Donaldson.
Referee: J Moss (West Yorkshire).