A TOURISM campaign which connects callers from all over the world with a random person in Sweden has, unsurprisingly, fallen victim to trolling.

Nearly 55,000 people have called ‘The Swedish Number’ since it launched on April 6.

The campaign by the Swedish Tourist Association was launched to celebrate 250 years since the Scandinavian nation become the first country in the world to abolish censorship.

“To honour this anniversary, Sweden is now the first country in the world to introduce its own phone number,” the site says. “Call today and get connected to a random Swede, anywhere in Sweden and talk about anything you want.”

The international phone number, +46 771 793 336, connects callers to one of an unspecified number of volunteer “ambassadors” who have downloaded the app to their phone.

Sweden is the 1st country with its own digits. Call The Swedish Number! +46 771 SWEDEN. #ThisIsSwedenhttps://t.co/Hhan3tEBTm — Sweden.se (@swedense) April 8, 2016

More than 134 days worth of calls have been made to the number, with the vast majority (38 per cent) coming from the US, followed by the UK (8 per cent), Turkey (6 per cent), Australia and the Netherlands (5 per cent).

Callers are invited to ask ordinary Swedes about anything they want. “It’s like when Swedes travel the world. You don’t know who they’re going to talk to and what they’re going to say,” said Magnus Ling, head of the Swedish Tourist Association.

“Talk about northern lights, meatballs, politics, skiing,” the site suggests. “Love, hiking, feminism, snow, gay rights, parental leave, suicide rates, the Nobel Prize, technology, crime novel, darkness, fashion, anything.”

The number has been inundated with callers asking locals about everything from Ikea and meatballs to journalists wanting to interview Swedes.

But many have taken the opportunity to engage in trolling over the migration crisis. “Why are you guys letting your country get raped by Muslims?” one caller from the US asked an unsuspecting Swedish man.

Another caller from the US, claiming to be “calling from Nigeria”, told the Swede he was “interesting to become Syrian refugee in your country”. “I am also very interested to make ‘ficki ficki’ with beautiful girl from Sweden,” he said.

It’s not the first time Sweden has dabbled in crowdsourced tourism. The country has also been handing over control of its official Twitter account to a “new Swede every week”.

That led to the situation where Lebanese-born radio host Elias Kreidy tweeted to more than 90,000 followers: “I’m the immigrant f***ing your daughter while you’re trying to sleep ignoring her moans calling me ‘daddy’.”

The campaign comes at a time when Sweden’s tourism industry, which employs 160,000 people and brings in around $US32 billion a year, risks being choked off due to the influx of migrants to the country as the Swedish Migration Board transforms many tourist facilities into asylum centres.

Lena Larsson, chief executive of Smaland Tourism, told the SvD Naringsliv newspaper in some areas there will be no hotel beds at all this summer after authorities procured more than 80,000 beds and extended the contracts into the high season.

“It is very uncertain how it will be this summer,” she said.

Tourism organisations have warned that the entire industry will be affected and say they have been left in the dark about what long-term impact will be.

“Hotels are the engine of tourism. If we don’t have them, we lose all other tourist revenues,” Södra Bohusläns Tourism president Lars-Eric Fällt told Svenska Dagbladet.

Sweden, which took in 165,000 migrants last year, is beginning to buckle under the strain and a growing number of Swedes are raising concerns about the country’s ability to cope with the influx.

According to police, there are now 55 declared “no go zones” in Sweden.

Last month, an Australian 60 Minutes crew were attacked by migrants in the Stockholm suburb of Rinkeby while filing a report on the growing social unrest in the country.