Although there are various scams, one of the more common ones is for the caller to hang up after one ring or as soon as the phone is answered. If recipients return the call, they can be charged $20 for the first minute of making an international call. Area codes to be especially wary of are Barbados’ 246, Antiqua’s 268 and Grenada’s 473. Jamaica and the British Virgin Islands are other locations of one-ring calls.
Read the article: ‘Missed call’ trick targeting more residents in eastern North Dakota