As someone who lived in Chile, distinctly remember seeing the end Credits of FoP always end with the Nelvana logo, so yeah. You can see it here.
Also fun fact, Fairy Odd Parents was aired on Fox Kids/Jetix/Disney XD on tandem with Nickelodeon. Jetix had Seasons 1 to 5 (the first 69 episodes, Nice) while Nick would carry on from Mid Season 5 onward.
Although i should mention that we did get the Jimmy/Timmy Crossovers in Latam aired on Nick, albeit this mean this basically was a Jetix/Nickelodeon Crossover by complete accident, since the show was still airing on Jetix, even after Nick got the rights for the later seasons. They milked those early show airings for years, alongside Pucca and Power Rangers.
Wierder still is that by 1996, YEARS before FoP came into existence, Nickelodeon was already a thing in Latinamerica. and yet the most popular Nicktoon after Spongebob during the 2000s wasn't aired in Nickelodeon until years later, which is made even MORE ironic as FoP was one of the most popular Cartoons in Latinamerica thanks to its Superlative dubbing, meaning that Jetix essentially aired the entire Golden Age of the show, while Nick got.................the rest. Yeah, to this day i don't think i have ever seen a pre-Season 6 episode on Nick Latam and probably the execs at Nick are kicking themselves in the foot to this day.
Could you imagine if they did the same mistake with say, Spongebob Squarepants?