How often you see a phone number being associated with a scary Ghost story or a creepy Urban legend ? You might have noticed this in one or two Hollywood movies. However, there are phone number which are linked with scary urban legends in the real life too. Here is list of few numbers which are considered as the scariest phone numbers in the world
090 4444 4444 : Japan’s Cursed Phone Number

This is a Japanese Phone number called as Sadako’s Phone Number. It is said that if you dial the number you’ll hear strange noises drifting down the line and within a week of making the call you will hear terrible news which can be as ugly as a death of people around you.
Japanese have always considered 4 as a devil number or the must unlucky number. Infact people hate the number in such an extent that a leading Mobile called One Plus skipped the series 4 from its one plus Mobile editions. It directly released one plus 5 after one plus 3T edition. Also, Sadako is major antagonist or devil in Japanese folklore and movies. So, this number was instantly called as Sadako’s Cursed number due to its relativity to all the negative aspects.
999 9999 : Thailand’s Phone Number of Death

There is a Urban Legend in Thailand that if you call 999-9999 number after mid night and make a wish, your wish will be granted and you will probably die in a freak accident soon. This really sounds horrifying. However, this belief was taken out from a movie 999-9999. It was said that the Movie unit arranged a spooky voice for the phone number to promote the movie initially. Later after release of the movie, it eventually transformed into a creepy Urban legend.
Even at present day, after 19 years of the movie’s release people still belive that the phone number is haunted. Also, few people say that the movie was made after the real incidents surrounding the creepy 999-9999 number which was really haunted.
Red Number : Pakisthan

The Red Number case which was originated in Pakisthan literally scared the entire Muslim community around Pakisthan. In 2007, many people in Pakistan received e-mails and text messages from different ID’s and phone numbers which warned people to not to lift numbers with red coloured digits. According to this mail, the red number call will have a high frequency range which will damage the brain Nerves of Humans and even might kill them.
The rumour was so strongly spread that the Government of Pakistan ordered for an enquiry on the details. Though Pakisthan Government rubbished the theory after investigation, the rumour was already spread to entire pakisthan and even to adjacent countries. The Red Number became a International phenomenon and many people around the world still believe it even today.
0888 888 888 : Bulgarian number which took 3 lives.

This is the most unwanted number in Brazil which was associated with the deaths of its last three owners. The first person who owned this number died with horrible form of cancer. The second man and third man were shot to death on streets. After the unlikely incidents, no person wanted to take the phone number.
The company which issued the phone number has permanently blocked the number to save it’s reputation. If you dial the number on present day you will hear that alert tone of service not available which is likely to remain forever.
666 666 6666 : American Spooky Number

Many Americans and few people from other parts of the world belive that 666-666-6666 or 1-666-666-66666 is perhaps a devil number. Many people have reported strange occurences happening after dialing either this number or variations of the number. Few people reportedly recieved Creepy messages and heard different things. The numbers were also reportedly not showing up on their phone bills either.
With multiple stories like this from around the US and outiside country, the number 666-666-6666 or to be precise the sequence of numbers starting with 666 are considered as devil numbers and are avoided.